Home

Anafaze LogicPro User`s Manual

1. II cp Gn 3 Lp Figure 8 12 Function Block After Connecting Output Element If the Function Block s first logical input is con nected directly from the left power rail without any element in between a constant True condition is applied during the running of the control pro gram However for the other logical input if there is no connection between it and the left power rail a constant False condition is applied Inserting Parallel Or Branches Doc 28002 00 Rev 3 00 There are two ways you can add a Ladder element parallel to an existing element To create parallel branches there must be elements on both sides of the element you want to parallel Figure 8 13 on page 94 shows the Ladder diagram before the parallel branch is added while Figure 8 14 on page 94 shows the Ladder diagram after the branch is added 1 From the toolbar select the element type you want to add Watlow Anafaze 93 Chapter 8 Ladder Diagrams 94 NOTE LogicPro User s Guide 2 Click and drag from the left side to the right side of the element you want to parallel 3 Release the mouse button A parallel branch is created When clicking and dragging you must begin or end outside the grid cell that contains the element you want to parallel 0001 IH KO Click Release Drag Figure 8 13 Adding the Parallel Branch Figure 8 14 After Adding the Parallel Branch If
2. 117 Figure 10 3 Counter Down Function Block llle eese 118 Figure 10 4 Counter Up Down Function Block sls 119 Figure 10 5 Timer Pulse Function Block llle 121 Figure 10 6 Relationship between the Input and Output of TP Function Block 123 Figure 10 7 Timer On Delay Function Block 0 0 0 0c eee 123 Figure 10 8 Relationship Between Inputs and Outputs of TON Function Block 124 Figure 10 9 Timer Off Delay Function Block lisse 125 Figure 10 10 Relationship Between Inputs and Outputs of TOF Function Block 126 Figure 10 11 Greater Than Function Block llle 126 Figure 10 12 Less Than Function Block 2 2 2 2 22 128 Figure 10 13 Equal To Function Block 00 00 0000 00000 129 Figure 10 14 ADD Function Block 2 130 Figure 10 15 Subtract Function Block 0 cc eee eee ee 131 Figure 10 16 Multiply Function Block 0 0 00 132 Figure 10 17 Divide Function Block annur nne 134 Figure 10 18 First In First Out Function Block 000000 135 Figure 10 19 Last In First Out Function Block 00 020s 138 Figure 10 20 Bit Shift Function Block liliis 140 Figure 10 21 Example of How Bits Shift Through the SL Function Block 141 Figure 10 22 Scan Time Counter Function Block 0000000 ee aee 142 Figure 10 23 Move Function Block 0 0
3. ees 86 Function Block 022 eens 86 COMMENTS s 5o eee ee i Ahk Gh er kan is LIKA eee 86 Cross Reference 5 2 9 m e wae n NA ae ACRES Ne Ioa eda 87 Viewing the Grid liliis 87 Creating and Editing Ladder Diagrams cee euae 88 Inserting Rungs ee eee 88 Inserting Elements llli 88 Inserting Function Blocks 2 000 aaaea 89 Connecting Function Blocks to Other Ladder Elements 90 Inserting Parallel Or Branches 0 a 93 Inserting Multiple Output Coil branches 055 96 Inserting Elements From the Left Power Rail 97 Cutting Rungs 2 00 c ete 98 Copying Rungs 2 ees rs 99 Pasting Rungs a a T a eee 99 Deleting Elements 0 0 0c eee eee 100 Moving Elements 0 000 e eee eae 100 Assigning Labels to Rungs eee eee eee eee 100 Assigning Variable Names llle 101 Naming and Assigning Variables to Function Blocks 102 Adding Comments to Ladder Diagrams 00 104 Hiding Rung Comments 0 0000 e cece ee eee 104 Doc 28002 00 Rev 3 00 Watlow Anafaze Table of Contents 9 Function Block Diagrams 105 FBD Toolbar ue hoc NG aan Et Eu epe ES 105 Selector 12 vases ed i Reed Yee be e a Gye tales 106 Straight Connections 0 0 c eee eee 106 Inverted Connections 000 e eee 106 Variables eyes Eis er th che
4. 0 0 00 0000 ee 243 Forcing Variables 0 cee eee 243 Watch Grid View 0000s 244 On Line Constant Changes 00 0c cence eee 246 16 Cross Referencing ee 249 Using Cross Referencing cece eee 249 SFC On line Cross Reference cece eens 249 Ladder On line Cross Reference 0 0a 250 Function Block Diagram On line Cross Reference 251 Cross Reference Output 0000 c eee eee eee 251 Output Printing 00 0 cee 253 Report Setup 2 2 02 tee 254 Variables Setup 20 0 255 Ladder Setup 00 cece eet 255 SFG SetU redeat lel ad wih eie de ee 256 EBD Setup kaman pue Sita epee DAR LE Spe S 257 VIII Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Table of Contents 17 Dynamic Data Exchange 259 How to Access a Remote Item ee 259 Inistallatlon a erm rre Eme eme er moe 260 Starting the LogicPro DDE Application lille 260 Configuration nes 260 Creating the Application FPR File 0000 ee eeee 261 TOPICS tree eret NG ee oer eer dere eo eed SE dr te d eee escape 262 Creating A New Topic 0 000 eee 262 Opena TOPIC rire See LIVRE da ee eg See eae 263 Close ATOPIC cee eee 263 Modify a Topic servite erit aerea eae 263 Delete a Topic ee ee 263 Item Point Naming 00 eee eee 264 Finding The Ava
5. 2 2 a 83 Figure 8 3 Rungs with Multiple Branches llssellseeleleesn 88 Figure 8 4 Function Block Dialog Box elles 89 Figure 8 5 Rung Before Adding a Function Block aa 90 Figure 8 6 Rung With a Function Block Added 0 000 sells 90 Figure 8 7 Ladder Diagram Before Elements Are Added to Function Block 91 Figure 8 8 Ladder Diagram After Elements Are Added to Function Block 91 Figure 8 9 Inserting an Input Element on a Function Block 92 Figure 8 10 Element Inserted Between Left Power Rail and Second Input Bit 92 Figure 8 11 Connecting an Element to a Function Block s Output 93 Figure 8 12 Function Block After Connecting Output Element 93 Figure 8 13 Adding the Parallel Branch 0 0000 ee 94 Figure 8 14 After Adding the Parallel Branch 2 94 Figure 8 15 Adding Another Branch aaua aaa anaa 95 Figure 8 16 Branch Added isseeleseeeeee eres 95 Figure 8 17 Creating a New Parallel Branch from the Left Power Rail 96 Figure 8 18 After Creating a New Parallel Branch from the Left Power Rail 96 Figure 8 19 Before Creating Multiple Output Coil Branches 97 Figure 8 20 After Creating Multiple Output Coil Branches 97 Figure 8 21 Multiple Output Coil Branches after the Top Coil is Removed
6. Table 10 1 Symbol Operation Symbol Operation addition i subtraction B multiplication division amp Logical AND Logical OR Exclusive XOR Exclusive NOT OR For example the function block would compute the operation A B as the value of A times the value of B and places the result of the 16 bit integer multiplication into the destination location C Similarly the bitwise NOR calculation A B would place in destination C the result of the bitwise NOT OR Boolean nor comparison If the third symbol is division SYM3 and the second argument of the calculation is B zero an error occurs marked by disabling the output bit Q If the output of an arithmetic operation or falls outside the acceptable range of C Q is locked as disabled 0 Figure 10 41 The Calculation Function Block EN is the CAL function block s enable bit The calculation is performed if True Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Outputs NOTE Jump JMP Inputs Output Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks A is the CAL function s first argument B is the CAL function s second argument Q is the CAL function s output bit The output bit is disabled if the enable bit is False it is enabled as soon as the input enable bit becomes True C is the CAL function s output destination If the calculation to be performed is
7. RESOUICES cese tends NAMANA meee ee ee 33 Creating a Resource 1 tee 33 Editing a Resource 1 ae 36 Copying Resources 0 00 cect eee 36 Resource Backup ee 37 Deleting a Resource 0 0 ec eee 38 Opening a Resource 0 0 ees 39 5 Programs addat rx aa ceeds eee EE ee ak 41 Creating a New Program 0 0 cece eee 41 Opening a Program eee 42 Saving a Program 2 ee 43 Closing a Program ssselsslseseee en 43 Copying Programs 2 ee 44 Saving a Program with a New Name Save As 45 Backing Up a Program 2 2 cece ee eee 45 Deleting a Program 00 c eee 47 6 Variables s ceia NAA eee ee eee 49 Naming Conventions 0 0 c cece eee ee 49 Retentive Variables llle ee 50 System Variables 000 c eee eee 50 Project Variables sei a a ew eae ewes REG MIX Re C E eee EM 51 Adding a Project Variable lille 52 Editing a Project Variable liliis 53 Deleting a Project Variable llle 54 Cloning a Project Variable 0 55 Resource Variables 000 cee eee 56 Adding a Resource Program Variable llus 56 Editing a Resource Program Variable Lulu 59 Deleting Resource Program Variables 2 4 60 Cloning a Resource or Program Variable 61 Program Variables sesse pari ea DEEP n wirt RE eee ey 61 Find
8. 000 cece tees 39 5 Programs uee ui umeRERRRE ES PAANAN 41 Figure 5 1 New Program Dialog Box 0 0c eee ee 42 Figure 5 2 Open Program Dialog Box ese 43 Figure 5 3 Verify Dialog Box seura e nes eh 44 Figure 5 4 Copy Program Dialog Box 0 000 cece eee eee 46 Figure 5 5 Delete Program Dialog Box 0 e ee eee 47 5 Variables c e esc tree me pun KS AA Be eas 49 Figure 6 1 Project Variables Dialog Box cece ee 51 Figure 6 2 Add Project Variable 0 0 0 0 0 0 eee 52 Figure 6 3 Edit Project Variable Dialog Box 000 c eee ee 54 Figure 6 4 Resource Variable Dialog Box 0 00 0 220 cee eee 57 Figure 6 5 Program Variable Dialog Box cee eee 57 Doc 28002 00 Rev 3 00 Watlow Anafaze XI List of Figures LogicPro User s Guide Figure 6 6 Add Resource Variable Dialog Box anaana aaan 58 Figure 6 7 Program Variables Dialog Box 0 00 e eee ee 62 Figure 6 8 Find Variable eae 63 7 Sequential Function Charts LLL 71 Figure 7 1 Simultaneous Transition n saaa aaaea 74 Figure 7 2 Parallel and or Single Transitions llle eee 75 Figure 7 3 Simultaneous Transition Conditions llle 75 8 Ladder DiagramS 4 243 a PAR iR 419 9 m b ne 81 Figure 8 1 Element without Handles lille 83 Figure 8 2 Selected Element with Handles
9. Displays the SFC toolbar on the right side of the screen Displays the SFC tools on the Tools menu SFC uses graphic elements to represent Steps Transitions and Actions in the program In LogicPro you can access these objects with the toolbar at the right of the screen You can activate any of the SFC tools by clicking on it on the toolbar The selected tool remains active until a different tool is chosen Table 7 1 shows the SFC tools with a brief description of each tool s function The following sections describe the tools and their use in programs in greater detail Table 7 1 The SFC Toolbar This Tool Performs This Function Selector Origin Step Step Simultaneous Transition Directed Link Loop Back Connection E e Ex 6 o s Action S Dg Comments Cross Reference Fa Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Selector A Cut Copy and Paste Origin Step E Step Doc 28002 00 Rev 3 00 NOTE Chapter 7 Sequential Function Charts Youcan use the Selector tool to choose the elements in the program you want to move edit delete or to which to assign variable names When you click on any element in the program handles highlight the object to show it is selected To select a single element click on the object with the mouse You can now move delete or edit the selected object by using the appropriate tool o
10. LogicPro User s Guide Chapter 10 Function Blocks assigned a value out of these ranges ENO is disabled C reverts to its last valid value whenever ENO is disabled Data Manipulation The following section contains a description of the data manipulation function blocks found in the standard category First In First Out FIFO Doc 28002 00 Rev 3 00 The First In First Out FIFO function block shown in Figure 10 18 creates and manipulates a stack of integers FIFO moves the contents of the input Variable INP to the stack when it encounters a False to True transition of the load bit LD The size of the stack is specified by assigning a constant to the SIZE parameter The count Variable CNT tracks the number of integers in the stack When the stack is filled with integers the full bit FUL becomes True This bit only remains True as long as the count of integers in the stack 1s equal to the size ofthe stack A False to True transition of the unload bit UNLD moves the first integer entered in the stack to the output Variable OUTP and changes the output bit Q to True Every succeeding False to True transition ofthe unload bit moves the oldest integer from the stack to the output Variable and causes the output bit to remain True until the entire stack is unloaded At this point the count Variable equals zero the output bit 1s False and the empty bit EMP is True This bit only remains True as long as the cou
11. Select Edit Select Attributes So Selection Action Edit the Name field if desired Select the desired Stored Unstored option Co c oy si Click OK to save the change Click Cancel to abort changes The Comments tool allows you to document each Step to note variables inputs outputs and other information pertaining to the Step You can then view and edit this text as needed To enter comments 1 Select the Comments tool 2 Double click on the Step you want to document The Comments dialog box appears 3 Enter text 4 Click OK to save the text and close the dialog box Click Cancel to delete the comment Cross Referencing provides both on line viewing and reports of the variables defined as part of the SFC program This helps you document and debug your control program For more information on Cross Referencing con sult Chapter 16 Cross Referencing Watlow Anafaze 79 Chapter 7 Sequential Function Charts LogicPro User s Guide 80 Watlow Anafaze Doc 28002 00 Rev 3 00 Doc 28002 00 Rev 3 00 Ladder Diagrams The Ladder diagram is an outgrowth of the relay Ladder commonly used in the programming of PLCs This offers you a visual method of creating Boolean expressions By satisfying the elements of the expression power flows through to a coil at the output of a rung Simply put the Ladder diagram symbolizes a circuit with energized left and right power rails I
12. Start Search From Beginning of Program gt Current Level Figure 6 8 Find Variable If you click Then OK The first instance of the Variable name is highlighted in the Ladder Diagram The Find Variable dialog box closes A message dialog box appears 6 To find additional instances of the Variable name click Yes in the message dialog box Click No to end the search When Then There are no addi tional instances of the Variable name The dialog boxes closes and the editor window becomes active The Variable name does not exist in the Ladder Diagram A warning box appears with the message Variable not found Click OK to clear the dialog box from the screen Doc 28002 00 Rev 3 00 Watlow Anafaze 63 Chapter 6 Variables 64 LogicPro User s Guide Using the Replace Command There are no addi tional instances of the Variable name When Then The dialog boxes closes and the editor window becomes active The Variable name does not exist in the Ladder Diagram A warning box appears with the message Variable not found Click OK to clear the dialog box from the screen You can use the Replace command two ways To locate and replace the first instance of a particular Variable name or To locate and replace subsequent instances of a Variable name To use the Replace command S
13. 000 cece nee ees 97 Figure 8 22 Adding an Extension from the Left Power Ralil 98 Figure 8 23 After Adding an Extension from the Left Power Rail 98 Figure 8 24 Variables Dialog Box 1 0 0 cece eh 101 Figure 8 25 Assign Function Block Symbolic Input Output Dialog Box 103 Figure 8 26 Symbolic Name on Function Block in a Ladder Diagram Program 103 Figure 8 27 Rung Comment Dialog Box 000 cece eee 104 9 Function Block Diagrams eeeeeese 105 Figure 9 1 Function Block Dialog BOX n sasaaa en 108 Figure 9 2 Placed Function Blocks aaua aaau 109 Figure 9 3 Symbolic Name on Function Block in a FBD program 110 Figure 9 4 Assign Name to Function Block Dialog Box 111 Figure 9 5 Execution Order in FBD 0c eee tte eee 112 Figure 9 6 Function Blocks in FBD with Handles 0000 eae 113 Figure 9 7 Pasted Function Block in FBD 0 0 00 000000000 113 Figure 9 8 Function Block Before Deletion With Handles 114 Figure 9 9 Function Block After Deletion 20000 0c eee 114 XII Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide List of Figures 10 Function BIOCKS 255A RR RR ERES EARS PIS 115 Figure 10 1 Counter Up Function Block 2 2 116 Figure 10 2 Assign Function Block Symbolic Input Output Dialog Box
14. 7 Click OK PPC 207x Digital In Addressing Example To create a variable named In 5 that examines the state of the fifth input on a PPC 207x module with its rotary address switch set to 52 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Yariable x Vi input _ Output 10 Physical Address With IO Size of Initial Value IO Driver O Retained Data Digital_10_2040 ssor l Comment Digital_In_207x Digital Out 206x Soft Bool x Doc 28002 00 Rev 3 00 Watlow Anafaze 199 Chapter 12 Function Blocks LogicPro User s Guide Setpoint A channel s setpoint can be used in logic programs by creating a variable in the logic program that points to this controller parameter as if it were physical I O This allows the logic program to examine or set value of a setpoint The I O address for a setpoint is constructed from the channel number only To associate a variable with a loop setpoint 1 Open the Add Program Resource Variable dialog box 2 Enter a unique variable Name 3 Select INT from the Type list 4 Select Input or Output by clicking the corresponding check box Nn Select Setpoint from the IO Driver list 6 Select WORD from the IO Size list 7 Inthe lO Physical Address field enter the channel number 1 48 8 Click OK Setpoint Addressing Example To create a variable named Setpoint_19 that reads the value of the Setpoint
15. DDE file The client application must specify a topic name along with a service name when it attempts to establish a conversation with a server Item name is a string that identifies a logical data context Items can be any pre defined symbolic Variable name The Variable name in the user Program is used by LogicPro as the item name For the client these names are key for establishing a conversation and receiving data from a server The LogicPro DDE Server is automatically installed at the same time LogicPro is installed Starting the LogicPro DDE Application Configuration 260 To start the LogicPro DDE application 1 Click the start button on the Windows task bar Select Programs Select Logicpro Bm rg Select DDE Server Before you can open a topic you must configure the LogicPro DDE Server The major steps in this process are e Create LogicPro DDE Server e Open the Server e Configure the Server To configure the LogicPro DDE Server 1 Select the Configuration menu 2 Select Configuration The DDE Configuration dia log box appears Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide A CAUTION Chapter 17 Dynamic Data Exchange 3 Enter a time in milliseconds in the Update Interval field This field sets up an internal timer that acts as the time base for polling the controller for Program status 4 For example if the Update Interval is set at 3 millisec onds th
16. EN is the Integer To Real enable bit A True condition of this bit causes the integer inputted to INP to be converted to a real number In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagrams program the value of EN is always True In FBD all inputs must be connected to a Variable INP is the Integer to Real function block integer input to be converted when EN is True Outputs Q is the Integer To Real function block output bit This bit is enabled and passes power while a True condition ofthe enable bit occurs 154 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 10 Function Blocks ROUT is the Integer To Real function block real number output This is the value of the integer passed to the IN changed to real number format Real to Integer RTOI Inputs Outputs Square Root SRT Doc 28002 00 Rev 3 00 The Real To Integer RTOI function block shown in Figure 10 35 converts values of type real to type integer The converted real value is then stored in the real Variable assigned to the output Figure 10 35 Real to Integer Function Block EN is the Real to Integer enable bit A True condition of this bit causes the integer inputted to
17. Figure 10 29 Real Add Function Block EN is the Real Add enable bit A True condition of this bit causes the value of RA to be added to the value of RB and the result stored in RC In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagram program the value of EN is always True In FBD all inputs must be connected to a Variable RA is one value to be added The range of values this Variable can assume is from 3 4x10 to 3 4x10 8 If this Variable is assigned a value out of these ranges unpredictable results will occur RB is another value to be added The range of values this Variable can assume is from 3 4x10 5 to 3 4x10 5 If this Variable is assigned a value out of these ranges unpredictable results will occur ENO is the Real Add output bit This bit is enabled and passes power when the enable bit EN is True and the value of RC does not go out of range RC is the Real Add result value RC contains the sum of RA and RB as long as the enable bit is True The range of values this Variable can assume is from 3 4x103 to 3 4x103 This Variable retains its previous value if EN is not True Likewise if the value of RC falls outside this range ENO is disabled RC reverts to its la
18. this data with another Cut or Copy instruction Watlow Anafaze Chapter 8 Ladder Diagrams Deleting Elements Moving Elements LogicPro User s Guide Individual or multiple elements may be deleted Deleting all the elements on a rung deletes the rung To Delete an element or group of elements from the programming window 1 Select the Selector tool 2 Click on the element that you want to Delete You may select multiple elements by holding down the left mouse button and dragging the dotted box around adjacent elements 3 Select Delete from the Standard toolbar Or Press the Delete key Select the element Click and hold the left mouse button and drag the element to its destination Rungs may be Moved by Cutting and Pasting Elements cannot be Moved from one rung to another Instead they must be Deleted and recreated where desired Assigning Labels to Rungs 100 Rungs can be labeled to facilitate logic jumps Rung labels may consist of up to six mixed case alphanumeric characters and the underscore character Labels are visible whether comments are displayed or not To Label a rung 1 Double click the rung number with the Selector tool The Set Rung Label dialog box appears 2 Typeaunique Label in the Label for Rung field 3 Click OK to save the label Cancel to abort labeling Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 8 Ladder Diagrams Assigning V
19. 2 Use the short cut keys or menu options to either Cut or Copy the action onto the clipboard 3 Paste the action into other SFC diagrams using either the Edit menu or short cut keys If you paste the action on to the same level of SFC you must change the action name The editor will prompt you for this change when required Pasted items appear at the bottom of the list If you need the pasted section to appear higher up in your diagram you must cut everything above it and paste it below Edit Ladder rungs in the following manner 1 Click the rung number to the left of the ladder rung with the Selector tool Multiple rungs can be simultaneously selected or lassoed 2 Use the short cut keys or menu options to either Cut or Copy the selection onto the clipboard 3 Paste the contents of the clipboard into any ladder dia gram using either the Edit menu or short cut keys Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Standard Text Doc 28002 00 Rev 3 00 Chapter 2 LogicPro Workplace To Cut Copy and Paste text from the UDFB editor 1 Select the text you wish to copy by holding down the left mouse button while dragging it across the desired text 2 Use the short cut keys or menu options to either Cut or Copy the selection onto the clipboard Paste the contents of the clipboard into any part of the UDFB editor using either the Edit menu or short cut keys Watlow Anafaze 23 Chapter 2 LogicP
20. CPC400 Digital In State of any digital input CPC400 Digital Out State of any digital output Setpoint Setpoint value of any of the channels Soft Bool The value of any soft bool register Typically used to exchange information between a logic program and an HMI program or operator inter face panel Soft Input Value of any of the soft inputs Typically used for a logic program to output a value to the input of a closed loop control channel Soft Int The value of any soft int register Typically used to exchange information between a logic pro gram and an HMI program or operator interface panel Database The value of any closed loop control parameter that is not supported by another IO Driver IO Physical Addresses The IO Physical Address syntax depends on the IO Driver The CPC400 Series User s Guide lists the addresses for each I O point and parameter In general there are three types of I O drivers Table 12 11 lists the IO Drivers in the categories that characterize the IO Physical Addresses used with them Table 12 11 Categories of lO Drivers Category Drivers CPC400 PV Hardware Specific CPC400 Digital Out CPC400 Digital In Setpoint N Soft Input Parameter Specific Soft Bool Soft Int Database Database Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks The following sections describe the address syntax
21. Downloading amp Monitoring LogicPro User s Guide 248 Watlow Anafaze Doc 28002 00 Rev 3 00 Cross Referencing Cross referencing helps you to debug your application Programs You can also use cross referencing to document Programs and track the locations of Variables and Program elements Cross referencing is the equivalent of a search command for graphical control Programs You can use both on line and off line Print Functions You can customize printed output to show only the information you need Using Cross Referencing Cross referencing is available in all three programming languages SFC On line Cross Reference To perform an SFC on line cross reference while in an SFC window 1 Select the Tools menu 2 Select Cross Reference or Click the Cross Reference button on the toolbar The standard pointer changes into a modified pointer as shown in Figure 16 1 on page 250 3 Click on the step transition or action for which you want to view a cross reference The Cross Reference dialog box appears This dialog lists all the Variables present for that step transition or action and its location in the Program Doc 28002 00 Rev 3 00 Watlow Anafaze 249 Chapter 16 Cross Referencing 250 LogicPro User s Guide You can minimize and move the Cross Reference dialog box so that you can view and edit portions of the Program If you change the Program or Variables the Cross Reference dialog box d
22. Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur Q is the Greater Than output bit This bit is enabled and passes power when the enable bit is True and the value of A is greater than the value of B The Less Than function block shown in Figure 10 12 on page 126 tests if a value is less than a reference value LT tests whether one value A is less than another value B when the enable bit EN is True If the relationship A B is True then the output bit Q is enabled The output bit is disabled either when the enable bit becomes False or the value of A is no longer less than B The values of A and B can be preset to a constant or assigned a symbolic name which allows their value to change dynamically within the program Watlow Anafaze 127 Chapter 10 Function Blocks 128 Inputs Output Equal To EQ LogicPro User s Guide Figure 10 12 Less Than Function Block EN is the Less Than LT enable bit A True condition of this bit causes the comparison between A and B to occur In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements
23. On a Ladder Diagram parallel spur used to create OR and other logic structures Build In LogicPro the act of compiling an SFC Ladder or FBD Program A build results in an executable file i e exe or dll 270 Watlow Anafaze LogicPro User s Guide Button Item on the toolbar such as a step or function block that can be selected for insertion into the process con trol Program Toolbar buttons remain active until an other button is selected Button Radio See Radio Button Byte A sequence of eight bits Range 0 255 C C A small robust high level programming language de veloped at Bell Labs in the 1970 s by Brian Kernighan and Dennis Ritchie Cascade Arrangement of open Program windows so just their title bars are displayed with the current active Pro gram window in full view Case Sensitive The ability of a Program to differentiate between up per and lower case letters Programs that can make this distinction are called case sensitive and would view Luck luck LUCK and LucK as four different entries Checkbox Dialog box item that toggles a setting between On and Off When the option is On an X appears within the checkbox Circuit Element The various graphic elements that make up a LogicPro Project such as coil contact etc Click Depressing one of the buttons on your mouse or point ing device Doc 28002 00 Rev 3 00 LogicPro User s Guide Click Double Click
24. See Table 2 1 for a detailed listing of menu items Table 2 1 The File Menu Menu Option Description Creates a new file type from the menu Project hew Resource Program User Defined Function Block Opens a file type from the menu Project Resource Program User Defined Function Block Closes the chosen type of item Project Resource Program User Defined Function Block Simulation Monitoring Delete Deletes the chosen type of item Project Resource Program User Defined Function Block Save Saves the program in the active top window Save As Watlow Anafaze Saves the information in the active window under a different file name Chapter 2 LogicPro Workplace Edit Menu LogicPro User s Guide Menu Option Description Creates a backup copy of the chosen type of item Backup Project Resource Program Import Variable Reads data from an ASCII comma delimited file Allows you to create and edit resource and program vari ables externally to LogicPro Export Variable Report Setup Writes data to an ASCII comma delimited file Allows you to edit resource and program variables external to LogicPro Allows you to customize your docu mentation by specifying what informa tion appears in the printout Print Setup Print Customize user defined print options Which p
25. With 10 Size of Word Initial Yalue 10 Driver Retained Data Comment ve Po Watlow Anafaze 211 Chapter 12 Function Blocks CPC400 Digital In NOTE LogicPro User s Guide The CPC400 Digital In driver allows a logic program to access the state of each of the digital inputs To read a digital input with a logic program variable 1 Open the Add Program Resource Variable dialog box Enter a unique variable Name 2 3 Select BOOL from the Type list 4 Select Input by clicking the check box A variable using the CPC400 Digital In driver should always be an input and never an output 5 Select CPC400 Digital In from the IO Driver list 6 InlO Physical Address field enter the digital input number 1 to 8 7 Click OK CPC400 Digital In Addressing Example 212 To create a variable named My Input Var that reads the value of the 4th digital input on a CPC400 set the options in the Add Program Resource Variable dialog box as listed below Add Program Yariable x Name v input Output My Input Var IO Physical Address a Ca L With IO Size of Type BOOL al INT LONG kd Initial Yalue 10 Driver CPC400 Digital Out Database Retained Data Soft Bool Comment Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide CPC400 Digital Out Doc 28002 00 Rev 3 00 Chapter 12 Function Blocks The CPC400 Digital Out allows a log
26. a Variable A is the value to be subtracted from The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur B is the value to subtract The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur ENO is the Subtract enable out bit This bit is enabled and passes power when the enable bit is True as long as the value of C does not go out of range C is the difference C contains the difference between A and B as long as the enable bit is True The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables The Multiply MULT function block shown in Figure 10 16 produces the product of two values MULT calculates the product between one value A and another value B and places the result in another Variable C when the enable bit EN is True The values of A and B can be preset to a constant or assigned a Variable name which allows their value to change dynamically within the program Fi
27. pointer take on the appearance of a traditional arrow with the addition of a small symbol identical to the picture on the button Clicking anywhere in the program window causes a new Variable element to be added The Function Block tool allows you to insert function blocks into the program window Cross Referencing provides both on line viewing and reports of the variables defined as part of the FBD program This helps you document and debug your control program Creating an FBD Program Doc 28002 00 Rev 3 00 There are six basic steps to creating a program using FBD Inserting Function Blocks Inserting Variable Elements Connecting Inputs and Outputs e Assigning LogicPro defined Variables to Variable Elements Assigning Names to Function Blocks Saving Compiling Downloading and Monitoring Watlow Anafaze 107 Chapter 9 Function Block Diagrams LogicPro User s Guide NOTE Variable Elements must be connected before val ues can be assigned to them Each of these steps are discussed in more detail in the following sections Inserting Function Blocks To add a function block 1 Select the Function Block tool The Function Block dialog box appears as shown in Figure 9 1 Select the check box next to the type of function block you want Standard Vendor Provided User Defined Select the name of the function block you want from the list Click OK Click the location
28. 00 cee eee eee 143 Figure 10 24 Scale Function Block 0 0 00 cece eens 144 Figure 10 25 ROUT as a function of INP 0 eee ee 145 Figure 10 26 Real Greater Than Function Block 00000 0 eee eaee 146 Figure 10 27 Real Less Than Function Block 0 0 00 cee ee eee 147 Figure 10 28 Real Equal To Function Block 0 0 cee eee 148 Figure 10 29 Real Add Function Block 2 0 0 0 eee 149 Figure 10 30 Real Subtract Function Block 0 00 e eee 150 Figure 10 31 Real Multiply Function Block lisse 151 Figure 10 32 Real Divide Function Block isle 152 Figure 10 33 Real Move Function Block 0 00 eee ee eee 153 Figure 10 34 Integer to Real Function Block llle 154 Figure 10 35 Real to Integer Function Block llle 155 Figure 10 36 Square Root Function Block liiis 156 Figure 10 37 The Logical AND Function Block aaan 157 Figure 10 38 The Logical OR Function Block 0 157 Figure 10 39 Vendor Provided Function Block diagram eee 158 Figure 10 40 The Comparison Function Block cee eee eee 159 Figure 10 41 The Calculation Function Block llle 160 Figure 10 42 The Jump Function Block 0 0 00 002 cece eee 161 Figure 10 43 The InterLock Function Block 00 00 000000 162 Figure 10 44 The Inter
29. 205x driver supports the outputs on the PPC 205x series Analog Output modules To associate a variable with an analog output 1 Open the Add Program Resource Variable dialog box Enter a unique variable Name Select INT from the Type list Select Output by clicking the check box Select Analog_Out_205x from the IO Driver list Select WORD from the IO Size list Enter the IO Physical Address The address is X Z X is the module address 31 34 Z is the module I O number 1 8 8 Click OK SO Od as PPC 205x Analog Out Addressing Example To create a variable named VoltsOut_2 that sets the level of the second output on a PPC 205x module with its rotary address switch set to 31 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Variable x VoltsOut 2 Increment Input v Output IO Physical Address 1 2 n With 10 Size of Word E Type BOOL a INT Ez Initial Value IO Driver Analog In 202x Analog Out 205x Database Retained Data ment Doc 28002 00 Rev 3 00 Watlow Anafaze 197 Digital lO 2040 Encoder Analog 20 Soft_Integer Chapter 12 Function Blocks LogicPro User s Guide Digital_Out_206x The Digital_Out_206x driver supports the relay outputs on the PPC 206x Digital Out series modules To associate a variable with a relay output 1 Open the Add Program Resource Variable dialog box En
30. 3 00 Chapter 2 LogicPro Workplace Table 2 14 The Ladder Toolbar Description Selector Normally Open Contact Normally Closed Contact EE EE ESI Ed 8 Off to On Transitional Contact Positive On to Off Transitional Contact Negative Normal Coil S E E Latched Coil Set Unlatched Coil Reset Function Block Comments iS ESL IL I Cross Reference Table 2 15 The FBD Toolbar Tool Description Selector Straight Connector Inverted Connector Variable el o ems el a Function Block T Cross Reference Watlow Anafaze 21 Chapter 2 LogicPro Workplace 22 LogicPro User s Guide Using Standard Windows Features SFC Actions Ladder Rungs LogicPro provides standard Windows features If you are already familiar with Windows the Select Cut Copy and Paste tasks are familiar You can access the Cut Copy or Paste commands from Edit on the Menu Bar or from the buttons on the Standard toolbar You can also access these features using the short cut keys Ctrl X gt Ctrl C gt and Ctrl V gt respectively Programming Items that can be Cut Copied Language or Pasted SFC Actions Ladder Diagram Ladder Rungs UDFB Text Cut and copy SFC actions in the following manner 1 Click the action with the Selector tool This creates handles around the action
31. 3 00 LogicPro User s Guide NOTE Chapter 6 Variables If you make a mistake you can choose Cancel in the Resource Program Variables dialog box to restore all Variables to the state in which they ex isted when you first opened the Resource Pro gram Variables dialog box Cloning a Resource or Program Variable Cloning a Variable creates an exact duplicate of that Variable and highlights the symbolic name ofthe copied Variable This makes the creation of similar Variables easier To clone a Resource Variable 1 Select the Variable you want to clone from the list in the Resource Variables or Program Variables dialog box Click Clone The Add Resource Program Vari able dialog box is opened with the cloned Variable Edit the Variable name Give the Variable a unique name Edit any other parameters that you wish to be different than the model for the cloned Variable Click OK to add the Variable Click Cancel to return to the Resource Program Variables dialog box without adding the cloned Vari able Program Variables Program Variables are available to all elements in a Program A Program Variable can be internal or it can be associated with a physical I O point or a database register To add edit and delete Program Variables Doc 28002 00 Rev 3 00 1 BP MP Select the Edit menu Select Variables Select Program Add Variables by clicking Add See Adding a Re source Program Va
32. 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur B is another comparison value In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur Watlow Anafaze 129 Chapter 10 Function Blocks Output Arithmetic Add ADD Inputs 130 LogicPro User s Guide Q is the Equal To output bit This bit is enabled and passes power when the enable bit is True and the value of A is equal to the value of B The following sections contain descriptions of function blocks found in the standard category that perform arithmetic The Add ADD function block shown in Figure 10 14 produces the sum of two values ADD calculates the sum of one value A and another value B and places the result in another Variable C when the enable bit EN is True The values of A and B can be preset to a constant or assigned a Variable name which allows their value to change dynamically within the program ADD EN 4 ENO A C B Figure 10 14 ADD
33. 57 Chapter 6 Variables 58 LogicPro User s Guide Add eeource Variable Database Figure 6 6 Add Resource Variable Dialog Box 5 Enter the Variable name in the Name field This name must follow the Variable naming conventions discussed in Naming Conventions on page 49 6 Ifyou want to create a numbered range of Variables en ter a start and an end number in each of the Increment fields Otherwise leave the fields blank 7 Select the Variable Type from the list of types either e BOOL Boolean INT Integer e LONG Long Integer REAL Floating Point Refer to Adding a Project Variable on page 52 for a more detailed discussion of allowable parameters for Variable types 8 Enter the Initial Variable Value If this field is left blank zero is the default value The Variable holds the value of zero until the Program or an I O reading changes that value Initial value can be used for constant values of function blocks or constant true false Variables 9 To associate a Variable with a physical I O point or a database register follow these steps Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide d Chapter 6 Variables Place a check mark in either the Input or the Out put check box Select the I O driver from the list The drivers in the list are determined by the Resource you selected Information on these drivers is located in Chapter 12 I O Drivers Ent
34. Chapter 16 Cross Referencing 252 LogicPro User s Guide Each SFC and Ladder Rung is listed on a separate line The items on each of the lines are The name of the Program in which this Variable is used The action in which this Variable is used There may be more than one action on a line e The rung number in which the Variable is located For Ladder Rungs LogicPro displays either the type of Element or name ofthe Function Block for each Variable used LogicPro displays function block names between two dashes eo The following text is an example of a Variable location Program Variables Varl BOOL Program Program Act Var2 INT Program Act ion ion Ladder 0 Ladder 0 This example shows the cross reference output of the Program Variables This Program uses two Program Variables Varl and Var2 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Output Printing Doc 28002 00 Rev 3 00 Chapter 16 Cross Referencing You can print the on line cross reference display by selecting Print in the Cross Reference Display dialog box This method of printing is discussed in Using Cross Referencing on page 249 You can also print Program documentation that includes the cross reference To print Program documentation including the cross reference 1 Select the File menu 2 Select Print 3 The Print dialog box appears as shown in Fi
35. Compiler Setup 2222 oes see iue re ES 221 Setting up the Compiler lisse 221 Doc 28002 00 Rev 3 00 Watlow Anafaze VII Table of Contents LogicPro User s Guide 14 Sim latloh a NE s cee ERN asc tee nee 225 Building a Program for Simulation cece eee 226 Using the Simulation Tools 0 0c cece 227 Simulation Setup 2 2 0 eee 228 TIMOR TICKS iiec ie th bal be ee Ral be we E 229 Increment Simulation Timer TickS 00000000 230 Scan Simulation Logic lille iles 230 Number of Scan 0 0000 e eee tenes 230 Resetting the Simulation llle 231 Change Simulation Variables a 231 Change Simulation Constants lille 232 Viewing Individual Steps and Actions within a Simulation 233 Closing the Simulation liliis 233 15 Downloading and Monitoring 235 Executable urere eee 235 Downloading to a controller through an RS 232 Port 235 Monitoring a Program sssssseeeee RR Ih 237 Monitoring Sequential Function Charts 055 239 Monitoring Ladder Diagrams essere 239 Monitoring Function Block Diagrams a 240 Forcing VO aaa na KA NAAN BANO ed Ro UE gare Bhd 240 Variable Watch craca pienen E tee 241 Configuring Variable Watch 0 000 eee eee 242 Selecting and Viewing Variables 0a 242 Changing the Value of a Variable
36. ExitXXXX XXXXStruct XXXXStructA In many cases the function can be empty For others the function may reset a hardware device such as a communication port Watlow Anafaze 173 Chapter 11 User Defined Function Blocks LogicPro User s Guide Compiling and Building a Library Once the code is written and is ready to test the user can either e Compile the UDFB file Builda library To compile the UDFB file from within the editor window 1 Select the File menu 2 Select the UDFB menu 3 Select Compile for Execution Or Compile for Simulation Either of these options causes LogicPro to compile your UDFB A DOS screen will appear momentarily as the compiler works Once the DOS screen disappears your UDEB is compiled The simulation library will be used in simulation mode and the execution library in runtime To build a library 1 Select Build Execution Lib from the UDFB menu The Build UDFB Library for Execution dialog box shown in Figure 11 4 appears 2 Click the UDFBs that you want to put into the library since only the selected UDFBs will be in the finished library 3 Click OK to compile the files and build a library Hudd UDFE Libaarg bor Esxeculiom Sampbe UDFE Figure 11 4 Build UDFB Library for Execution The library is named xxxUDFB lib with a prefix indicating the kind of resource that is currently opened 174 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter
37. FIFO auauna 135 Last In First Out LIFO 000 000 cee eee 137 Bit ShifE SL uocem LI eee yere Dp uer e E RUE 140 Scan Time Counter SCAN 0 142 Move MOVE 000 cece e ren 143 Scale SOL beet Ra edge Lo RR ER Nha 144 Real Number Function Blocks 00 0 cece eee eee 145 Real Greater Than RGT 00000 c eee eee eee eee 145 Real Less Than RLT 000 eee eee eae 146 Real Equal To REQ 0 2 0 0 e eee 147 Real Add RADD 22 0 00 c eee eee 148 Real Subtract RSUB 0 2 c cee eee 149 Real Multiply RMUL 0000 cece eee ee 151 Real Divide RDIV 0 00 152 Real Move RMOV 0 00 naana eee eee eee 153 Integer To Real ITOR 00000 e eee eee eee 154 VI Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide LogicPro User s Guide Table of Contents Real to Integer RTOI esmai a a e 155 Square Root SRT ccc eee eee 155 Logical usui Re eas De E RERO ee EE eee a 157 Logical And AND 0000 c cece eee 157 Eogical Or OR x eile iad eM ek Peu DNI Sq Ae 157 Vendor Provided Function BlockS 00 0c c eese 158 Comparison CMP 0c cece eee 158 Calculation CALC 2 0 00 cece 159 J mp JMP eus etm Potens seats keke e bue in ig 161 Interbock IE ui niue eiu pete Erde heim qu dei 162 InterLock Clear ILC nanunua 000 eee 162 Rotation R
38. Figure 7 2 both Steps 2 and 3 will execute in parallel once condition 1 is met M Startrea2 i ER 1 J Mint Condition J N Fimal Figure 7 2 Parallel and or Single Transitions A single horizontal line indicates that only one step executes For example in Figure 7 3 either Step 2 or Step 3 will become active depending on whether condition 1 or condition 2 becomes true In case both Transition conditions become true at the same time Step 2 will become active because logic is executed top to bottom left to right Figure 7 3 Simultaneous Transition Conditions Doc 28002 00 Rev 3 00 Watlow Anafaze 75 Chapter 7 Sequential Function Charts Assigning Variables to Transitions LogicPro User s Guide Transition conditions must take the form of a single expression A Transition condition can be a variable that allows the program to continue once the variable value is greater than 0 It could also be one or more variables related by Boolean operators resulting in a Boolean true or false result Any integer value greater than 0 is considered true The following list of operators shown in Table 7 2 may be used in the Transition condition expression Table 7 2 Transition Condition Expressions Operator Symbol Function Times Divided By Plus Minus Greater Than or Equal To Greater Than Less Than or Equal To Le
39. Function Block EN is the ADD enable bit A True condition of this bit causes the value of A to be added to the value of B and the result stored in C In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in Ladder programs In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in Ladder programs the value of EN is always True A is one value to be added The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur B is another value to be added The range of values this Variable can assume is from 32 768 to 32 767 including 0 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Outputs Subtract SUB Inputs Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur ENO is the Add enable out bit This bit is enabled and passes power when the enable bit is True as long as the value of C does not go out of range C is the ADD sum C contains the sum of A and B as
40. If a variable is not associated with a variable block its value will appear next to the Function Block No online changes can be made in a FBD pro gram Boolean variables can be forced on or off while monitoring an SFC or ladder diagram program running in a controller Variables remain in their forced states until you clear or disable the forced condition s or termi nate the logic program Closing the monitor win dow or LogicPro will not clear or disable forced variables Force variables only when you are sure it is safe to do so To control I O forcing while monitoring 1 Right click on the I O variable The Force Clear I O dialog box appears 2 Click one of the following buttons depending on what you want to do Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide NOTE Variable Watch Doc 28002 00 Rev 3 00 Chapter 15 Downloading amp Monitoring e Force On The value of 1 is given to the variable forcing it on A green square appears around the object e Force Off The value of 0 is given to the variable forcing it off A red square appears around the object Clear Force Any forcing that the variable may have is removed 3 Click OK The changes take effect accordingly Forcing is not supported in function block dia grams FORCE CLEAR 10 Ki Figure 15 5 Force Clear IO Dialog Box Variable Watch lets you easily view the current status and propert
41. LIFO output Variable This Variable holds the value unloaded from the stack The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is exceeds these ranges unpredictable results will occur The Bit Shift SL function block shown in Figure 10 20 creates and manipulates a synchronous bit shift register SL moves the contents of the shift register one bit to the left upon a False to True transition of the shift bit SHFT The value of the input bit BIT then is the first bit in the shift register The size of the shift register is determined by the integer value of SIZE Once the register is filled by shifting in the number of bits equal to the size of the register the next False to True transition of the shift bit causes the last bit of the register to shift into the output bit Q A True condition of the clear bit CLR clears the shift register Figure 10 20 Bit Shift Function Block SHFT is the SL shift bit As long as the clear bit is False each False to True transition of this bit shifts the contents of the register one position to the left in the register The value of the input bit fills in the first position of the register and the last value in the register is placed in the output bit In a program using Ladder logic the value of SHFT is determined by the Boolean evaluation of element
42. O points If the values of these points are changed by the LogicPro DDE Server the scan loop of the controller will overwrite these changes Finding The Available Item Names Once a topic is opened you can acquire a list of available symbolic names for that application Program by selecting the Topic Info menu then Variables The Variables List dialog box appears with a complete listing of available names including Real time values Excel Spreadsheet DDE Sample In this example Excel is used with the LogicPro DDE Server To run this example you need LogicPro v2 0 or greater LogicPro DDE Server e Microsoft Excel v4 0 or greater v5 0 is strongly recommended The Program Example 1 shown in Figure 17 1 on page 265 continuously increments six timers Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev 3 00 Chapter 17 Dynamic Data Exchange nableTimer Tidone 0002 nableTimer T2done nableTimer T3done DR1 DR3 a Tidone INP TON TON T2done INP T3done INP TON DRS nableTimer T4done T4done DR nableTimer T5done T inp TON DR9 DR10 PT ET nableTimer T done T6done 0006 INP TON DR11 NOTE Figure 17 1 Example 1 Before you can open LogicPro you must close the DDE Server Before downloading the Example1 Program make sure that the resource is set to the correct platform
43. On until one of the contacts opens and stops sending power to the coil To use the Normal Coil 1 Select the Normal Coil tool 2 Position the pointer where you want the coil placed and click The Latched Coil tool allows you to insert latched coils into the program window The Latched Coil sometimes known as a Set coil is set to On when all of the contacts or Function Blocks on the Ladder rung pass power to the coil from the left power rail This coil remains latched On until it is reset by a Reset Unlatched coil Watlow Anafaze 85 Chapter 8 Ladder Diagrams 86 Unlatched Coil K Function Block Comments cow ik LogicPro User s Guide To use the Latched Coil 1 Select the Latched Coil tool 2 Position the pointer where you want the coil placed and click The Unlatched Coil tool allows you to insert unlatched coils into the program window The Unlatched Coil sometimes known as a Reset coil is reset to Off when all of the contacts or Function Blocks on the Ladder rung pass power to the coil from the left power rail The Unlatched Coil is given the same Variable name as the corresponding Latched Coil When the Unlatched Coil is energized the corresponding Latched Coil is de energized or unlatched To use the Unlatched Coil 1 Select the Unlatched Coil tool 2 Position the pointer where you want the coil placed and click The Function Block tool allows you to insert Func
44. Out Doc 28002 00 Rev 3 00 Glossary File Extension In Microsoft Disc Operating System this refers to the ec 99 three characters following the in a file name For example txt is the file extension for the file named readme txt Flag A hardware or software switch that can be either on or off and signals a specific condition is present Flag Variable Generally a Boolean variable used for identifying a condition or event in a Program Flash Disk Drive An EEPROM that can be programmed in place by us ing specific algorithms Folder See Directory Function A part of a Program that performs a specific task Function block A controller programming element consisting of a data structure partitioned into input output and internal variables G Global Variable Variable which can be used in all Resources within a Project or all Programs within a Resource GUI Graphical User Interface Graphic User Interface A type of environment making extensive use ofa computers graphic abilities which defines your inter action with the computer and its software Windows Watlow Anafaze 273 Glossary and Mac OS are two popular examples of a Graphic User Interface GUI Graphical Language A programming language that makes extensive use of graphic symbols for easier programming This allows you to draw a Program instead of coding one Log icPro supports Ladder SFC and FBD Graphica
45. QD is not enabled even though the current value is set to zero CV is the Counter Up Down current value In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this output in the Variable Assignment dialog box The value of this Variable increments by one every time a False to True transition ofthe counter up enable bit occurs and decrements by one every time a False to True transition of the counter down enable bit occurs until the current value equals either the preset value or zero The current value retains this value until the reset bit 1s True Prior to an initial loading of the preset value the value of CV is zero The Timer Pulse function block shown in Figure 10 5 enables an output for a preset amount of time Upon a True condition of the enable bit INP TP increments the integer elapsed time ET value in milliseconds until the integer preset time PT value is reached During this period of time only the output bit Q is enabled The elapsed time value resets to zero once it reaches the preset value and the enable bit becomes False Once the timer starts status of INP does not ef fect the count TP INP4 Q PT ET Figure 10 5 Timer Pulse Function Block Watlow Anafaze 121 Chapter 10 Function Blocks 122 Inputs Outputs LogicPro User s Guide INP is the Timer Pulse enable bit A True conditio
46. Select WORD as the IO Size 7 Inthe lO Physical Address field enter the channel number 1 to 5 for CPC204 1 to 9 for CPC208 8 Click OK Setpoint Addressing Example To create a variable named Setpoint_2 that reads the value of the setpoint of channel 2 set the options in the Add Program Resource Variable dialog box as illustrated below Fudd Piogram RI Name input Output 0 Physical less Increment A i With IO Size nf Ward 10 Driver CPCAB PY Database Setpoint 214 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks Soft Input A logic program can generate an analog input to a closed loop control channel To do so output a value to one of the Soft Input registers and enable the soft input for use on the channel To set a Soft Input with a logic program variable 1 Open the Add Program Resource Variable dialog box Enter a unique variable Name Select INT from the Type list Select Output by clicking the check box Select Soft Input from the IO Driver list Select WORD as the IO Size In the IO Physical Address field enter the Soft Input num ber 1 9 8 Click OK de ON UON ber ode up Soft Input Addressing Example To create a variable named PV From Logic 1 that sets the value of the first soft input set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Yaria
47. To download the Example Program 1 Open the LogicPro Development Environment Select the Execution menu Select Build All and Run Pe uas sit downloads it to the target platform LogicPro compiles the Program and automatically 5 To verify that the Program is successfully running you can select the View menu and then Monitor On Off If the timer is counting the Program is running and you can start the LogicPro DDE Server and begin the Excel spreadsheet example Watlow Anafaze 265 Chapter 17 Dynamic Data Exchange 266 NOTE LogicPro User s Guide You must exit LogicPro to free the communica tion channel or an error box will appear when the LogicPro DDE is started Setting Up Excel to Read Using the spreadsheet as a sample the DDE Server reads the Variables and places their values in the specified cells The spreadsheet reads Variables and shows a chart reflecting those values as shown in Figure 17 2 C Microsoft Excel LPDDE XLS Ga Ele Edit View Insert Format Tools Data Window Help 8 M sp ELM LE m Lm allel za EISISle 2200 15330 9677 5696 1216 7625 8581 15000 18232 2584 29761 4720 h Shee MM Figure 17 2 Spreadsheet Example To specify a specific Variable inside the controller call the LP DDE Server and request the data In the DDE Server use Topicl which you configured earlier Topicl uses the FPR file for the configuration of the controller
48. UDFB as it appears in the list of available UDFBs in the Ladder diagram editor The Long name is limited to 27 characters or less 5 Enter an abbreviated name for the UDFB in the Short field The Short name is the label that is placed at the top of the graphical representation of the Function Block as it appears in the Program editor The Short name must Usea letter from A to Z for the first character e Be4 characters or less in length e Not use a space or other illegal character Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide ws 3 Symbol Type Naa m a Im a p Chapter 11 User Defined Function Blocks 6 Define the Variables that will be used as inputs and outputs as well as internally by the Function Block Refer to In s Out s and Internals below 7 Click OK to create the new UDFB Cancel to terminate the process Figure 11 1 New UDFB Dialog Box In s Out s and Internals Doc 28002 00 Rev 3 00 NOTE IN s contains the symbol and type of Inputs to the UDFB OUT s contains the symbol and type of Outputs from the UDFB Internal contains the symbol and type of internal assignment They may also be used as extra inputs and outputs but they will not be displayed The major differences between Internals and Ins are that internals are Not displayable in Ladder diagrams Only constants Variables can be used but not changed on line The symbo
49. Variable s Build All and Run Execution Download and Run Open Program for Monitoring Disabled Status Update Run Execution Terminate Execution Simulation Setup Ho a o is 8 S FS Simulation Reset Scan Simulating Logic Increment Simulation Timer Tick Change Simulation Variable s Repaint Window Watlow Anafaze Chapter 2 LogicPro Workplace Language Toolbars NOTE 20 LogicPro User s Guide The Language toolbars appear down the right side of the screen Tools represent each of the language elements used in building a program in a particular language This Toolbar automatically changes to reflect the current programming language ToolTips are available on all the buttons so that you can easily identify their functions Each of the tools available on these toolbars is full explained in the section covering the particular language Toolbar Explanation Page Sequential Function Charts 72 Ladder 82 Function Block Diagram 106 The Language toolbar is only visible when a pro gram editor window is open and on top Table 2 13 The SFC Toolbar Tool Description Selector Origin Step Step Simultaneous Transition Directed Link Loop Back Connection Action E EG o k7 Comments S Dg Cross Reference Fa Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev
50. addition SYM3 or multiplication SYM3 and the second symbol is L the outcome of the computation will be a double 64 bit integer InterLock InterLock Clear and Jump Function blocks are not available in FBD programs symbol1 JMP The Jump J MP function block shown in Figure 10 42 performs a GOTO LABEL action This function block needs to be positioned at the end ofa rung Labels can be set at rungs throughout the Ladder Diagram by clicking on the rung number in the workspace Infinite loops cause errors which can be detected by scan time monitoring EN JMP Q LB Figure 10 42 The Jump Function Block EN is the Jump enable bit LB is the Label of the rung to which the function block points and passes control to in a GOTO like fashion See Assigning Labels to Rungs on page 100 for information on labeling rungs Q is the output Jump function block s output bit Its value is always equal to that of the enable bit EN Watlow Anafaze 161 Chapter 10 Function Blocks 162 InterLock IL Input Output LogicPro User s Guide InterLock and InterLock Clear function blocks shown in Figure 10 43 and Figure 10 44 are designed to act as opening IL and closing ILC brackets to a segment of logic The section s of a ladder program positioned between IL and ILC rungs can be selectively executed IL and ILC cannot be nested IL and ILC alter the performance of all elements co
51. are composed of several files which are located in the Resource directory Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 3 Projects To copy a Project 1 Ifa Project is being used by LogicPro close it a SelectFile b Select Close c Select Project 2 Copy the Project directory using any file utility such as Windows Explorer Copy the entire directory including all files and subdirectories Do not rename any directory or file name LogicPro will not recognize a Project in a folder if the name has been changed 3 Openthe Project a SelectFile b Select Open c Select Project The Open Project dialog box ap pears as shown in Figure 3 3 on page 27 d The Project will not be listed Select Build List from the dialog box The Rebuild Project List dialog box appears as shown in Figure 3 4 on page 26 e Enter a drive in the Start Drive and End Drive fields LogicPro searches the drive s entered and produces a list of all available Projects f Click on the copied Project g Click OK Backing Up a Project Doc 28002 00 Rev 3 00 You can back up or copy a project to any location that 1s accessible to the computer Backing up is the equivalent to Save As for projects To backup a project NOTE A project must be closed before you can back it up Watlow Anafaze 29 Chapter 3 Projects LogicPro User s Guide 1 Select the File menu 2 Select Backup 3 Select Projec
52. as pulses when the enable bit EN switches value from False to True In the continuous computation case integers are marked as W or L while in the Pulse computation case they are marked as WP or LP LSFT EN w a 2 N D Figure 10 46 The Right and Left Shift Function Blocks EN is the shift function block s enable bit the conversion is performed if it is True Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Outputs Negation NEG Inputs Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks N is an integer INT or long integer LONG specifying the number of bits the shift should be done for per scan D is the INT or LONG integer Variable on which the shift is to be performed also an output Q is the shift function s output bit The output bit is disabled if the enable bit is False and is enabled as soon as the enable bit is True D is the shift function s output destination as well as input The INT integer or LONG integer will be replaced with the result of the shift operation symbol1 NEG The NEG function block shown in Figure 10 47 implements a bitwise NOT and complements the lowest bit two s position symbol2 W L WP or LP Variable A and B need to be declared as integer type of size specified in this symbol as follows Two memory sizes are available for this integer word length W 16 bit and long word L 32 bit In addition the function block s calcu
53. box Logic scans will overwrite these variables values NOTE If you are not in the continuous scan mode the logic will not reflect the changes to a variable until a scan takes place Therefore to see the effects you must trigger at least one scan cycle Change Simulation Constants In a Ladder diagram double click on a function block to view and change a constant see Figure 14 5 CC imle Furection Block Constant Gharege Function TOF Pin Old value 1000 New value Figure 14 5 On Line Function Block Constant Change NOTE Constants can only be changed in Ladder dia grams You cannot change constants in a Func tion Block diagram 232 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 14 Simulation Viewing Individual Steps and Actions within a Simulation Inan SFC diagram double clicking on the Action to the right of the step opens a window displaying this Action in simulation mode This works regardless of the programming language used in the Action If the Action is another SFC you can continue to drill down and see more detail Each time you double click on the Action another window opens If the Action is a Ladder Diagram or a Function Block Diagram you can not go any deeper However you can change constants by double clicking on the Function Block See the section entitled Change Simulation Constants on page 232 for more information Closing the Simulatio
54. calculation functions offer an alternate format and other options not found in standard function blocks symbol1 CMP The comparison function block CMP is designed to test quantitative relationships between two specified inputs A and B and report the finding in the output bit Q See Figure 10 40 on page 159 symbol2 WorL The Variables A and B need to be declared as INT type or LONG integer type of size specified in this symbol Two memory sizes are available for these integers word length W 16 bit and long word L 32 bit Pulse types are not available symbol3 comparison In the CMP function block this symbol specifies the type of comparison to be made and takes on one value from the set of equal lt gt not equal gt greater than gt greater or equal lt less than lt less than or equal For example the function block would compute the comparison A zB and enable the output bit Q if B is greater or equal to A and disable Q if B is less than A Similarly the comparison A lt gt B would enable Q if A does not equal B while disable Q if A did equal B Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Inputs Output Calculation CALC Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks Figure 10 40 The Comparison Function Block EN is the CMP function block s enable bit It allows the comparison to be performed if True A is the CMP function s f
55. click the Function Block on the monitoring win dow The On Line Function Block Variables Change dialog opens as shown in Figure 15 7 on page 247 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev 3 00 Chapter 15 Downloading amp Monitoring 2 Selectthe variable you want to modify 3 Enter the new value in the New Value field 4 Click OK to send the new values to the controller Cancel to abort these changes The program window now displays the new constant values On Line Function Block Constant Change Function TON PT Old value 32000 Figure 15 7 On Line Function Block Variables Change Dialog Box The change to the constant is made temporarily in the run time program not in the LogicPro program The new constant value is valid while the program is running in the controller If for any reason the controller s program is terminated and re started LogicPro restores the original constant values The user will need to repeat the On Line constant change proce dure To keep the new constant value it is strongly recommended that you update the constant value in the LogicPro program and download it again This will make the new constant value permanent To update the constant value in the LogicPro program follow these steps 1 Open the program 2 Make the change 3 Save the program to disk 4 Compile 5 Download again Watlow Anafaze 247 Chapter 15
56. controls execution of steps within the Program 278 Watlow Anafaze LogicPro User s Guide Standard Toolbar Screen item below the menu bar displaying buttons which execute commands State A description of the logical time dependent existence of a process Status Bar Item located at the bottom of the screen displaying the current Project and Resource name along with each menu item s information Step An SFC Program unit which follows the instructions and rules defined by its associated actions Switch Electrical element used to open or complete a circuit as desired Symbolic Variables Identifier used to name variables associated with a function block System Variable Variables available at the system level including sta tuses of I O devices etc Symbolic Name Identifier used to name a variable 1 Task Control element which provides periodic and or trig gered execution of a group of associated Program units Tag A variable Doc 28002 00 Rev 3 00 LogicPro User s Guide TCP IP Address The Transmission Control Protocol Internet Protocol is a standard for computer network data transmissions developed by the U S Department of Defense The ad dress identifies a unique machine connected to a net work Text Editor A Program used to edit text files that does not insert characters other than those defined under ASCII Al though some older Line editors are still in use today
57. decrement until it reaches zero At this point the output bit Q is enabled and remains enabled until the function block is reset by a True condition ofthe load bit LD When the load bit is True the current value resets and remains at the integer preset value P V Watlow Anafaze 117 Chapter 10 Function Blocks 118 Inputs Outputs LogicPro User s Guide Figure 10 3 Counter Down Function Block CD is the Counter Down enable bit As long as the reset bit is False each False to True transition of this bit decrements the current value until the current value equals zero In a program using Ladder logic the value of CD is determined by the Boolean evaluation of elements placed between the left power rail and CD in the function block In FBD programs the value of CD is determined by the Variable connected to CD If no contacts are placed on the rung before or Variable attached to CD the value of CD is always True but a transition never occurs LD is the Counter Down load bit When this bit is True the current value is set to the preset value and the output bit is disabled In Ladder Diagram programs the value of LD is determined by the Boolean evaluation of elements placed between the left power rail and LD In FBD programs the value of LD is determined by the Variable connected to LD PV is the Counter Down preset value In Ladder logic assign this input a symbolic name or constant value in the Assign Function Blo
58. floating point hold positive and negative real numbers between 3 4e38 and 3 4e38 REAL variables are always internal You cannot associate a REAL variable with an I O point or closed loop control parameter NOTE The IO Driver and IO Size lists are sensitive to the choice you make in the Type list 186 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Input Output Chapter 12 Function Blocks In order to associate a variable with an I O point or a closed loop control parameter you must select either Input or Output in the Add Program Resource Variable dialog box Table 12 2 describes these options Table 12 2 Input and Output Option Description Input The value of the I O point or closed loop con trol parameter is read but not changed by the logic program Note The value of an output set by the closed loop control program may be an input to a logic program You could for instance want to know when a control output exceeds 90 duty cycle In that case you would set up a variable as an input that reads the percent output power from a channel Output IO Size The value of the digital or analog output or closed loop control parameter is set by the logic program Note A digital or analog input to the controller would never be associated with an output vari able in a logic program The logic program out put variable can however set the value of a Soft Input
59. for faster access to specific parameters Of course controller parameters that are read only cannot be adjusted The specific parameter value is addressed with the parameter number and its database offset See Table 12 14 on page 210 for a description of this syntax Doc 28002 00 Rev 3 00 Watlow Anafaze 209 Chapter 12 Function Blocks 210 LogicPro User s Guide Table 12 14 Address Syntax for Database Driver Syntax Used with this IO Driver D Parameter Number Database D Database Offset Two types of parameters are accessed using the Database I O driver Channel and Global The following sections describe how to determine the database offsets to be used to access each of these types of parameters Parameter Number The parameter number is the numeric identifier used to address a closed loop control parameter Each parameter in the CPC400 has a parameter number See the CPC400 manual for a list of parameter numbers and descriptions Database Offset The database offset is the location of a particular value relative to the first value of that parameter For example each channel has a proportional band setting If you want to set the proportion band for channel 6 the address will include the database offset 6 Channel Parameters The database offsets associated with channel parameters are the channel numbers Refer to the CPC400 Series User s Guide for a complete description of channel p
60. it is only the graphical repre sentation and does not mean a short circuit in the actual control logic EL Figure 8 21 Multiple Output Coil Branches after the Top Coil is Removed Inserting Elements From the Left Power Rail To create an extension from the left power rail to existing parallel OR branches or multiple output coil branches Doc 28002 00 Rev 3 00 Watlow Anafaze 97 Chapter 8 Ladder Diagrams LogicPro User s Guide 1 Make sure that the extension you want to add will not get in the way of any existing element Figure 8 22 shows a Ladder diagram that 1s ready to accept an extension rail 2 Select the new element type from the toolbar 3 Click and hold on the right side of the left power rail Handles appear to indicate that you selected an existing rail 4 Drag just to the right of left vertical line of the branch to which you want to attach 5 Release the mouse button A new extension rail is created as shown in Figure 8 23 along with the new element sen apt ac ih Ab Figure 8 22 Adding an Extension from the Left Power Rail It LI m i Figure 8 23 After Adding an Extension from the Left Power Rail Cutting Rungs To cut a rung 1 Select the Selector tool 2 Position the pointer to the left of the Left Power Rail each Rung has its own unique number 3 Click on the number of the Rung number that you want to Cut You may select multi
61. items on this menu allow you to enable dis able or clear fording of variables See Forcing I O on page 240 Watlow Anafaze Chapter 2 LogicPro Workplace LogicPro User s Guide Windows Menu This menu offers additional tools for customizing your LogicPro workspace Specifically it provides a list of open windows and allows you to change the dimensions and arrangement of those windows Refer to Table 2 9 Table 2 9 The Windows Menu Menu Option Description Arranges all of the open windows in an overlapping fashion so that the title bars of each are visible with the currently active window on top Arranges all of the open windows next to each other NOTE Tile displays all of the open Tile windows equally and side by side within the program window The more windows you have open when you tile the less of each you will see Organizes the icons that represent the minimized windows in your pro Arrange Icons gram This option arranges the icons along the lower left hand edge of the workspace Closes all the windows associated with the Program Close All Simulation Monitoring UDFB All Windows Currently open windows if any are listed To change the active window to any of the currently open windows Open Window simply point to the desired window on the list and click A check mark appears to the left of the active win dow Cascade 16 Watlow Anafaze Doc 28002 00
62. needed to perform the addition Operand C will equal Operand A plus Operand B if the enable is true These inputs and output are of integer type The range of an integer is 32 768 to 32 767 Finally the two names for the Function Blocks must be defined One name is a long name that appears in the list of UDFBs when programming Ladder logic This name can be up to 27 characters in length The other is the short label that appears at the top of the UDFB in the graphical Ladder environment This label can be up to 4 characters in length Figure 11 8 shows how the Function Block looks in a program Watlow Anafaze 179 Chapter 11 User Defined Function Blocks 180 LogicPro User s Guide Figure 11 8 ADD1 Function Block Use the following steps to define the UDFB 1 Select File 2 Select New 3 Select User Defined Function Block The Add UDFB dialog box appears 4 EnterExample 1 Add astheLong Name in the Long field Enter ADD1 as the Short Name in the Short field Click Insert in the Inputs group Name the first input EN and set its Type to Bool Click OK SO 00 rd ENS Cen Repeat steps 6 to 8 with the second and third inputs Named as A and B with Type set to INT 10 Click Insert in the Outputs group 11 Name the first output as Q and set its Type to Bool 12 Click OK 13 Repeat steps 10 to 11 with the second output named as C with Type set to INT 14 Click OK LogicPro automatic
63. of A is no longer greater than B The values of A and B can be preset to a constant or assigned a symbolic name which allows their value to change dynamically within the program GT EN 4 A B Figure 10 11 Greater Than Function Block Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Inputs Output Less Than LT Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks EN is the Greater Than enable bit A True condition ofthis bit causes the comparison between A and B to occur In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN the value of EN is always True A is one comparison value In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur B is another comparison value In Ladder logic assign this input a symbolic name or constant value in the Assign
64. placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN the value of EN is always True A is one comparison value In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur B is another comparison value In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur Q is the Less Than output bit This bit is enabled and passes power when the enable bit is True and the value of A is less than the value of B The Equal To EQ function block shown in Figure 10 13 on page 12
65. program to examine and set values of Soft Ints For example a Soft Int could be used to allow a user to set a timer preset in a logic Program The I O address for a Soft Int is the Soft Int number To associate a variable with a Soft Int 1 Open the Add Program Resource Variable dialog box 2 Enteraunique variable Name 3 Select INT from the Type list 4 Select Input or Output by clicking the corresponding check box ox Select Soft Int from the IO Driver list 6 Select WORD from the IO Size list 7 Inthe lO Physical Address field enter the Soft Int number 1 100 8 Click OK Soft Int Addressing Example To create a variable named Soft Int 35 that reads the value of Soft Int 35 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Yariable x v input _ Output IO Physical Address Bs Ii With IO Size of Byte Word Initial Yalue TJ _ Retained Data 10 Driver vos Watlow Anafaze 203 Chapter 12 Function Blocks LogicPro User s Guide Database The Database I O Driver is used to examine or set values for any closed loop control parameter not supported by one of the other drivers The specific parameter value is addressed with the parameter number and its database offset To associate a variable with a value in the database 1 Open the Add Program Resource Variable dialog box 2 Enter a unique variable N
66. programs the value of LD is determined by the Variable connected to LD If no contacts are placed on the rung before LD the value of LD is always False This bit has higher evaluation priority than the CD bit in this function block PV is the Counter Up Down preset value In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 1 to 32 767 for INT type Variables and 1 to 2 147 483 647 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Outputs Timer Pulse TP Doc 28002 00 Rev 3 00 NOTE Chapter 10 Function Blocks QU is the Counter Up output bit When CU passes power this bitis enabled and passes power once the current value is equal to the preset value if CV counted up to PV not if LD was used to load CV with the PV value QD is the Counter Down output bit This bit is enabled and passes power when the current value is equal to zero if CV counted down to zero not if reset was used to reset CV to zero A rung with an output coil is not needed between QD in the function block and the right power rail or connect an output Variable to it Prior to an initial loading of the preset value
67. the SpreadSheet Overview screen In general there are three types of I O drivers Table 12 5 lists the IO Drivers in the categories that characterize the IO Physical Addresses used with them Table 12 5 Categories of IO Drivers Category Drivers Processor 2010 Analog In 202x Encoder Analog 2030 Module Specific Digital lO 2040 Analog Out 205x Digital Out 206x Digital In 207x Setpoint Soft Input Soft Bool Soft Int Database Database Parameter Specific The following sections describe the address syntax used with each category of IO Driver Module Specific Drivers Doc 28002 00 Rev 3 00 The module specific IO Drivers such as Processor 2010 and Analog In 202x are used to access digital I O states and analog I O values The specific I O value addressed uses either two place or three place addresses depending on how many types of I O the corresponding module supports Modules that have only one type use two place addresses Modules that have more than one type use three place addresses See Table 12 6 for a description of these syntaxes Table 12 6 Address Syntax for Module Specific Drivers Syntax Used with these IO Drivers Two Place Address Modules with only one type of I O X Z Analog In 202x Analog Out 205x X Module Address Digital_Out_206x Z Module I O Number Digital_In_207x Three Place Address Modules with more than one type X Y Z of I O Processor_2010 X Module Addre
68. the evaluation of Boolean elements placed between the left power rail and UNLD in the function block In 138 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Outputs Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks FBD programs the value of UNLD is determined by the Variable connected to UNLD If no contacts are placed on the rung before UNLD the value of UNLD is always False This bit has higher evaluation priority than the LD bit in this function block CLR is the LIFO clear bit When this bit is True the stack is cleared of any values and the count Variable is set to zero In a Ladder Diagram program the value of CLR is determined by the Boolean evaluation of elements placed between the left power rail and CLR in the function block In FBD programs the value of CLR is determined by the Variable connected to CLR If no contacts are placed on the rung before CLR the value of CLR is always False This bit takes the highest evaluation priority of the input bits in this function block INP is the LIFO input Variable In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The value ofthis Variable is placed in the stack at the location of the count Variable The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variabl
69. the open Resource 1 Select the Edit menu 2 Select Attributes 3 Select Resource The Edit Resource dialog box appears See Figure 4 3 with the current Resource type highlighted 4 Click OK to open the Attributes dialog box Click Cancel to exit the dialog box 5 Make the desired changes to the settings NOTE This is the same dialog box used when creating a New Resource See Creating a Resource on page 33 for an explanation of the various Re source parameters Edit Resource Ed Target Environment PPC 2000 Figure 4 3 Edit Resource Dialog Box Copying Resources Resources must be copied within the context of their Projects To copy a Resource 1 Copy or back up the Project containing the target Resource and then open it See Copying Projects on page 28 and See Backing Up a Project on page 29 36 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 4 Resources 2 Sincethe project may contain many different Resources delete any unnecessary Resources a SelectFile b Select Delete c Select Resources The Delete Resources di alog box appears d Select the Resources to delete e Click OK The temp directories can be deleted to minimize the size ofthe project Using any file utility such as Windows Explorer delete the temp directories 1bk through 5bk located within the Project directory Resource Backup Doc 28002 00 Rev 3 00 NOTE Backup
70. the precautionary copying of your Resource files to an alternative location is an important step in protecting your work from equipment failure You must meet two conditions in order to backup a Resource The Resource must exist within the open Project The Resource must be closed You cannot move or copy a Resource outside its original Project To backup a Resource 1 Select the File menu 2 Select Backup 3 Select Resource The Copy Resource dialog box appears as shown in Figure 4 4 on page 38 4 Select the Resource you want to back up by clicking on it in the Existing Resources list 5 Enter a new name in the New Resource Name field 6 Click OK This is very useful for duplicating controller ele ments that repeat Watlow Anafaze 37 Chapter 4 Resources 38 Ci 1 T Hi E LogicPro User s Guide Existing Hesaurce s New Resource Name e el p8 Figure 4 4 Copy Resource Dialog Box Deleting a Resource This option irreversibly removes an existing Resource from the current Project NOTE l 2 Select the File menu Select Delete Select Resource The Delete Resource dialog box appears as shown in Figure 4 5 on page 39 Select the Resource or Resources you want to delete from the list You can delete multiple Resources simultaneously By default no Resources are selected when the dialog box appears Click on a Resou
71. thousandths of a second when triggered by a True condition of the enable bit until the elapsed time is equal to the preset time The elapsed time retains this value until the enable bit is False If the enable bit becomes False before the elapsed time equals the preset time the elapsed time resets to zero Figure 10 8 illustrates the relationship between the inputs and outputs of the TON function block and shows how the INP signal and ET timer determine the state of the output Q INP and Q signals are high or low ET is an analog value on the vertical axis Time is on the horizontal axis Timer On Delay TON Timing T C WE MN NT Figure 10 8 Relationship Between Inputs and Outputs of TON Function Block Timer Off Delay TOF The Timer Off Delay function block shown in Figure 10 9 on page 125 provides a time delay for disabling an event at a preset time interval 124 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Inputs Outputs Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks The output bit Q is enabled upon a True condition of the enable bit INP When there is a False condition of the enable bit TOF continues to enable the output bit while it increments the integer elapsed time ET value in thousandths of a second until the integer preset time PT value is reached Once the elapsed time value equals the preset time value the output is disabled The elapsed time value resets and
72. to choose only one option from a group Selecting an option deselects all of the other options Rails See Power Rails RAM An acronym for Random Access Memory which is used to store variables while a Program is running Range The set of all possible values for a type of variable Real Numerical variables with floating point decimals that can range from 10300 to 10200 in LogicPro Rebuild To recompile a LogicPro Program See Build Reference Value A value used for comparison in LogicPro Programs Doc 28002 00 Rev 3 00 Glossary Resource Hardware controller which operates the process once the C code generated by the LogicPro Program is load ed Resource Variables Variables that are available to all the Programs written for a particular Resource Retentive Variable A variable whose value is saved in the event that pow er is lost to the controller Thus with the restoration of power this value is still available Right Power Rail This object is not visible in LogicPro it is assumed to be there See Power Rail RS 232 Electronics Industry Association EIA approved in terface for connecting serial devices Rubber Band Line The graphical indicator of what is being included in a selection when editing a program Rung The horizontal line located between the left and right power rails of a Ladder Program where the elements are placed S SCAN Scan Time Counter Function Bl
73. 0 Alarm Statusl INT 0O I W Database 95 1 Analog Inl 1 INT 0 I W Analog In 202x 1 1 Analog Outll 1 INT 0O Q W Encoder Analog 2030 11 1 Control Mode I1 INT O I W Database 1 1 Control Mode O1 INT 0 Q W Database 1 48 Dig In1 BOOL 0 I X Processor 2010 0 1 Dig Out25 BOOL O Q X Processor 2010 0 25 Encoder Inll 1 INT 0 I W Encoder Analog 2030 11 1 Heat Output I1l INT O I W Database 36 1 Heat Output O1 INT O Q W Database 36 1 Setpoint_I1 INT 0 1 W Database 95 1 Setpoint_O1l INT 0 Q W Database 95 1 END Table 6 2 Selected Explanations of the Ex ample Import Export File Code Explanation The first line indicates that these are RESOURCE type RESOURCE PPC_2000 Variable and the name of the RESOURCE is PPC_2000 The second line is empty except for the opening bracket and closing bracket Variable Name Variable Type Short Retentive Flag Initial Value Comment Input or Output IO Size Driver Name IO Address Variable Name Variable Analog Inl 1 INT O Type Short Retentive Flag I W Analog In 202x 1 Initial Value Comment 1 Input or Output IO Size Driver Name IO Address Alarm Status1 INT O I W Database 95 1 Doc 28002 00 Rev 3 00 Watlow Anafaze
74. 000 eee 227 Figure 14 3 Simulation Setup Dialog Box 0 0 00 ccc eee eee 229 Figure 14 4 Change Variables Dialog Box 0 000 cee eee eee 231 Figure 14 5 On Line Function Block Constant Change liuius 232 15 Downloading and Monitoring 235 Figure 15 1 Downloading e 237 Figure 15 2 LogicPro Monitoring Window sse 238 Figure 15 3 Active Step in an SFC 1 1 2 0 0c lees 239 Figure 15 4 Monitoring Ladder Diagrams lslselle elles 240 Figure 15 5 Force Clear IO Dialog Box 0 241 Figure 15 6 The Watch Grid in the Variable Watch Window 245 Figure 15 7 On Line Function Block Variables Change Dialog Box 247 16 Cross Referencing L su 249 Figure 16 1 The Cross Reference Pointer cece eee eee 250 Figure 16 2 Print Dialog BOX soa rerea eae 253 Figure 16 3 Report Setup Dialog Box 000 c cece eee 254 Figure 16 4 Variable Setup Dialog Box 00000 cee eee 255 Figure 16 5 Ladder Setup Dialog Box 00000 cece eee 256 Figure 16 6 SFC Setup Dialog Box n n sanana ccc tee 256 Figure 16 7 FBD Setup Dialog Box 1 2 2 0 000 c cee eee 257 17 Dynamic Data Exchange sess 259 Figure 17 1 Example 1 0 0 ccc eee eee 265 Figure 17 2 Spreadsheet Example 0 0 cee eee teen eee ee 266 XIV Watl
75. 1 Table 7 1 The SFC Toolbar 0 00 c cece eee eee 72 Table 7 2 Transition Condition Expressions 76 Doc 28002 00 Rev 3 00 Watlow Anafaze XV List of Tables LogicPro User s Guide 8 Ladder Diagrams Llllsee 81 Table 8 1 Ladder Diagrams Toolbar u nan ana nauan 82 9 Function Block Diagrams 105 Table 9 1 FBD Toolbar Functions lille 106 10 Function Blocks oer LIII RR 115 Table 10 1 Symbol Operation iliis 160 11 User Defined Function Blocks 167 12 Input Output Drivers ssseee 185 Table 12 1 Variable Types 0 0 00 eee 186 Table 12 2 Input and Output liiis lees 187 Table 12 3 IO Sizes Used with IO Drivers 04 187 Table 12 4 Data Accessed by the IO Drivers 188 Table 12 5 Categories of IO Drivers a 189 Table 12 6 Address Syntax for Module Specific Drivers 189 Table 12 7 1 O Type Digit in IO Physical Address 190 Table 12 8 Addresses Used with Parameter Specific IO Drives 190 Table 12 9 Address Syntax for Database Driver 191 Table 12 10 Data Accessed by the IO Drivers 208 Table 12 11 Categories of IO Drivers aa 208 Table 12 12 Addresses Used for Hardware Specific Drivers 209 Table 12 13 Addresses Used with Parameter
76. 11 User Defined Function Blocks The library is stored in the following directory logicpro user be After the UDFB library is successfully built up you can use the UDFB in a Ladder diagram or Function Block Diagram Program as a standard Function Block When your Program is compiled and linked for execution the library is automatically linked by LogicPro All the functionality in LogicPro which is available to standard Function Blocks is also available to User Defined Function Blocks UDFB in Simulation int XXXX bool UDFBs are most often used to perform some application specific tasks Some of them may be hardware specific However simulation in LogicPro can run on a PC that may not be able to perform such hardware specific tasks The user may want to simulate hardware which is not available in simulation mode In order to overcome the problem a pre defined macro SIMULATION is automatically inserted if Compile for Simulation or Build Simulation Lib is selected from the UDFB menu You must use ka ifndef SIMULATION e endif to exclude all hardware and target operation system specific code for conditional compiling The pre defined macro SIMULATION also allows you to write code in order to make the UDFB behave the way you want it to in simulation To have a UDFB run in both simulation and the execution environment refer to the following example EN bool Q int C XXXXStruct XXXX
77. 2 7 The Simulation Menu Menu Option Description Build All and Compiles and links a program for Run simulation and runs the simulation Opens the Simulation Setup dialog box allowing you to set the number Simulation n Setup of milliseconds that elapse per scan as well as establishing the number of logic scans per simulation scan Simulation Reset Resets all variables and the program state back to their original values Scan Increment Timer Executes a single scan of the simula tion based on the simulation setup criteria This feature is only available if you are not in the continuous scan mode Advances the timer by the number of ticks defined in the Simulation Setup dialog box Change Variable Opens the Change Variables dialog box allowing you to change the value of any variable in the program for sim ulation purposes This menu allows you to customize the LogicPro development environment To activate an option select the menu item A check mark appearing to the left of an item indicates the option is active If there is no check mark the option is inactive See Table 2 8 Watlow Anafaze Table 2 8 The Options Menu Menu Option Description Resource Allows you to establish a path to the Compiler directory containing the compiler Selection linker includes etc Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev 3 00 Chapter 2 Logi
78. 28002 00 Rev 3 00 About SFC Sequential Function Charts Sequential Function Chart SFC is a graphical language using simple graphical objects to diagram any sequential process SFC enhances communication between the project manager system architect programmers and operators by providing a clear graphical representation of the process state machine SFCs provide a way to partition a controller program into a manageable set of Steps and Transitions These Steps and Transitions are interconnected by directed links Steps include related Actions such as filling a tank counting parts or waiting for a delay that are carried out until a Transition condition is satisfied Once the Transition condition is satisfied control is transferred to the subsequent step Using SFCs in LogicPro Doc 28002 00 Rev 3 00 SFCs support both serial and parallel sequential processes Because discrete manufacturing and process applications all run as a sequence of Steps SFCs are an excellent way to logically assemble the sub processes into a structured program Using these basic elements e Steps Transitions e Actions Watlow Anafaze 71 Chapter 7 Sequential Function Charts 72 SFC Toolbar LogicPro User s Guide SFCs allow you to design program debug and document your process in a quick and effective manner SFC is the default language for LogicPro programs When SFCs are the active language for the window LogicPro
79. 69 Chapter 6 Variables LogicPro User s Guide Dig Out25 Boo1 0 0Q Variable Name Variable Type Short Retentive Flag X Processor 2010 0 25 Initial Value Comment Input or Output IO Size Driver Name IO Address END This is the last line in the ASCII file Exporting an ASCII file The procedures for exporting Resource or Program Variables to an ASCII file are similar to the procedures for importing and ASCII file When you export you create or overwrite an ASCII file with the Resource or Program Variable information already in LogicPro To export Resource or Program Variables to an ASCII file use the following procedure 1 Select the File menu 2 Select Export Variable a Select Project or Resource or Program The Export Variable dialog box appears 3 Selectthe type of export operation you want to perform Export All exports all types of Variables Export I O Variables Only exports all Variables defined as Input or Output excluding all internal or non IO defined Variables from the Export file available for Resource and Program Variables Verifying the Export Operation 70 After exporting a file you can verity the result by using an ASCII based editor to view the file Be sure to use an ASCII based editor or the file may have control and formatting codes added to it that will make it unsuitable for future import operations Watlow Anafaze Doc
80. 8 to 32 767 including 0 If this Variable is assigned a value out of these ranges unpredictable results will occur Both RMAX and RMIN scale INT INP into a ROUT RMAX and RMIN are of type REAL The range of values this Variable can assume is from 3 4x103 to 3 4x10 5 If this Variable is assigned a value out of these ranges unpredictable results will occur ROUT is equal to RMINwhen INHs 0 ROUT is equal to RMAX when INPis 4095 144 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Outputs Chapter 10 Function Blocks Q is the Boolean output bit ROUT is the REAL result of the SCL operation The value is based on the settings for RMAX and RMIN ROUT retains its previous value whenever EN is disabled See Figure 10 25 RMAX RMIN ROUT 4095 INP Figure 10 25 ROUT as a function of INP Real Number Function Blocks Real function blocks are similar to regular standard function blocks in LogicPro As the name implies real function blocks use real Variables to perform calculations In turn the output of these function blocks is also real These function blocks are found in the standard category Real Greater Than RGT Doc 28002 00 Rev 3 00 The Real Greater Than RGT function block as shown in Figure 10 26 on page 146 tests if a real Variable value is greater than a reference value Like the Greater Than function block RGT tests whether one value RA is greater than another valu
81. 9 tests if a value is equal to a reference value Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Inputs Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks EQ tests whether one value A is equal to another value B when the enable bit EN is True If the relationship A B is True then the output bit Q is enabled The output bit is disabled either when the enable bit is False or the value of A is no longer equal to B The values of A and B can be preset to a constant or assigned a symbolic name which allows their value to change dynamically within the program EQ EN 4 Q A B Figure 10 13 Equal To Function Block EN is the Equal To enable bit A True condition of this bit causes the comparison between A and B to occur In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN the value of EN is always True A is one comparison value In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147
82. C You can also monitor individual actions in Sequential Function Chart programs To open a monitoring window for an action l 2 Select the View menu Click on the action in the program Select Monitor On Off Click on the Monitor On Off tool to toggle Monitor ing on or off in each window When you are finished monitoring the SFC select Win dows then Close All to close the monitoring windows Monitoring Ladder Diagrams In a Ladder Diagram LogicPro indicates the state of a variable associated with an element by coloring it bright green when it is equal to one This is true for all contacts and coils except the normally closed contact which is bright green when the variable associated with it is equal to zero See Figure 15 4 on page 240 Doc 28002 00 Rev 3 00 Watlow Anafaze 239 Chapter 15 Downloading amp Monitoring 240 LogicPro User s Guide Function blocks with variables assigned to Inputs or Outputs show the variables current values n1 Timer Elapsed Time H455 Figure 15 4 Monitoring Ladder Diagrams Monitoring Function Block Diagrams NOTE Forcing I O N CAUTION In a Function Block Diagram only the variables change color to indicate activity When a Boolean element is true has a value of 1 that element 1s highlighted in green Otherwise monitoring an FBD program is the same as monitoring a Ladder program Values only appear with their associated variable block
83. Clear To save view settings 1 Click File and then click Save The Save dialog box appears Enter the name of the PVW file Click Save The Watch Grid contains information about the variables you have chosen in the Select Grid See Figure 15 6 on page 245 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 15 Downloading amp Monitoring F Variable Watch Window lor x File View Columns Options Help Price value Type Forced 10 Address Comments Initial PPC1 TESTFORC a BOOLEAN NOT FORCED IB 0 0 2 Processor 2010 PPC1 TESTFORC b BOOLEAN NOT FORCED 08 0 0 35 Processor_201C PPC1 TESTFORC B0 CU BOOLEAN NOT FORCED PPC1 TESTFORC BD C LONG PPC1 TESTFORC BD P LONG PPC1 TESTFORC B0 Q BOOLEAN NOT FORCED PPC1 TESTFORC pve INTEGER Double click on a value cell to change the value FORCING ENABLED C 4LOGICPRONREMTT4REY11 FLK A Figure 15 6 The Watch Grid in the Variable Watch Window Table 15 1 The Columns in the Watch Grid Column Description The name of the variable In Variable Watch the variable name contains the resource name program name and name that you gave the variable in your program each separated by a dot Variable For example for the variable SORTER SIZER Always True SORTER is the resource SIZER is the program Always True is the variable Value The current value of the variable TypeThe type of variable either Bool ean integer lon
84. Excel provides an easy way to read a value from a DDE and place it into a cell The correct format is SERVER NAME TOPIC NAME ITEM NAME e Server Nam LP_DDE This is the executable file name for the LogicPro DDE server Topic Name the name that was assigned at the New Topic dialog box e Item Name the symbolic Variable name that is used in the Program Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev 3 00 NOTE Chapter 17 Dynamic Data Exchange The A1 cell will contain the following string C1 DR1 IP DDI E TOP The topic and server names are delimited by a pipe The topic and item name are delimited by an exclamation point For more information on using Microsoft Excel and Dynamic Data Ex change see your Microsoft Excel documentation Watlow Anafaze 267 Chapter 17 Dynamic Data Exchange LogicPro User s Guide 268 Watlow Anafaze Doc 28002 00 Rev 3 00 A Action An operation performed in a control process as part of the SFC step Active Window The window receiving active input from the mouse and keyboard Address 1 The physical location of data in a computers main memory or on a hard disk drive 2 The unique name given to a component in a net work API Application Program Interface a standardized set of tools routines and protocols Programs written for the Windows API make it easi
85. G REAL Long Integer REAL for Real Type See Note 4 Retentive Flag 1 0 1 1 indicates a Retentive Initial Value Variable 10 Digits only See Note 5 Comment 26 ASCII chars Input or Output Size Driver Name for input Q for Output See Note 4 X for bit B for byte W for Word See Note 4 1 X B W The size indicates how I O is mapped to a Vari able 1st char must be letter Others 26 must be alpha Bee Note 4 numeric or Address This item must be in the form of moduleaddress offset or parameternumber off set as required by the 49 digits digits driver only digits and the decimal are allowed and these digits must also be in the legal range specified by the particular drivers 68 If the Variable type is defined as real then Input Output Size Driver Name and Address are not be available The Variable Name Variable Type Short Retentive Flag must be present for all Variables The Initial Value is op tional and defaults to zero The Comment field may be left empty If the Variable is an I O Variable the input output Size Driver name Address must also be present Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 6 Variables 4 Variable Type Short Input or Output Size and Driver Name are case sensitive 5 Initial Values See Naming Conventions on page 49 Example of an Import Export File RESOURCE PPC 200
86. If you need to add more parallel branches From the tool bar select the element type to add Start dragging on the right side of the left power rail and below the rung you to which you want to attach the new branch End dragging close to the rung NOTE Ensure that the Handles appear on the rail directly below the rung number to ensure that the new parallel OR branch starts from the existing rail Inserting Multiple Output Coil branches To create multiple output coil branches 1 96 Select a coil type element either normal coil latched coil or unlatched coil from the toolbar Click and drag from the left of the coil below and past the existing coil See Figure 6 19 on page 97 Release the mouse button A new branch with the new coil is added below the original See Figure 8 20 on page 97 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 8 Ladder Diagrams NOTE This procedure is valid only when the selected el ement type is one of the three output coil types However other element types may be placed be fore the coil in a multiple output coil branches T Al Aie Figure 8 19 Before Creating Multiple Output Coil Branches Mg mc Figure 8 20 After Creating Multiple Output Coil Branches NOTE If the top most coil in a multiple output coil branches is deleted a horizontal line will remain as shown in Figure 8 21 This should not be a cause of concern as
87. Ina program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN In FBD programs the value of EN determined by the Variable connected to EN Ifno contacts are placed on the rung before EN in a Ladder Diagram program the value of EN is always True In FBD all inputs must be connected to a Variable RINs the Square Root input Variable The range of values this Variable can assume is from 3 4x1033 to 3 4x10 8 If this Variable is assigned a value out of this range unpredictable results will occur Q is the Square Root output bit This bit is enabled and passes power when the enable bit is True Place an output coil on the rung between Q in the function block and the right power rail in a Ladder Diagram program or connect an output Variable to it in a FBD program ROUT is the Square Root output Variable This value is set equal to the square root of the input Variable when the enable bit is True The range of values this Variable can assume is from 3 4x10 9 to 3 4x1033 If this Variable is assigned a value out of this range unpredictable results will occur ROUT retains its last valid value whenever EN is disabled Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Logical Logical And AND Inputs Outputs Logical Or OR Inputs Outputs Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks T
88. Lock Clear Function Block 00000 ee eaee 162 Figure 10 45 The Right and Left Rotation Function Blocks 163 Figure 10 46 The Right and Left Shift Function Blocks 2 164 Figure 10 47 The Negation Function Block 2 165 11 User Defined Function Blocks 167 Figure 11 1 New UDFB Dialog Box eee 169 Figure 11 2 Add Symbol Definition Dialog BOX a sassa aaua aaaea 171 Doc 28002 00 Rev 3 00 Watlow Anafaze XIII List of Figures LogicPro User s Guide Figure 11 3 Edit Symbol Definition Dialog Box 0 0002 eee eee eee 171 Figure 11 4 Build UDFB Library for Execution 0 0 0 0 0 eee eee 174 Figure 11 5 Build UDFB Library for Simulation Dialog Box 176 Figure 11 6 Open User Defined Function Block Dialog Box 177 Figure 11 7 Delete User Defined Function Block Dialog Box 178 Figure 11 8 ADD1 Function Block wiee miine aae S E eee 180 12 Input Output Drivers 02s 185 13 Compiler Setup aa PARA he eiesent ee ike ue 221 Figure 13 1 Simulation Compiler lille 221 Figure 13 2 Compiler Paths liliis 222 Figure 13 3 Select Borland Compiler 00 000 c cee eee 222 14 Simulation soe hr ERRREILuA IRR RLHTISGeE UE 225 Figure 14 1 Compiler Dialog Box 0000 cece see 227 Figure 14 2 Borland C Compiler DOS window 20
89. LogicPro User s Guide Watlow Anafaze 314 Westridge Drive Watsonville CA 95076 Phone 831 724 3800 Fax 831 724 0320 Part No 28002 00 Revision 3 00 September 2000 Copyright 2000 Watlow Anafaze Information in this manual is subject to change without notice No part of this publication may be reproduced stored in a retrieval system or transmitted in any form without written permission from Watlow Anafaze Anafaze developed package includes licensed proprietary material of Intellution Inc Intellution Inc 1996 Warranty Watlow Anafaze Incorporated warrants that the products furnished under this Agreement will be free from defects in material and workmanship for a period of three years from the date of ship ment The Customer shall provide notice of any defect to Watlow Anafaze Incorporated within one week after the Customer s discovery of such defect The sole obligation and liability of Watlow Anafaze Incorporated under this warranty shall be to repair or replace at its option and without cost to the Customer the defective product or part Upon request by Watlow Anafaze Incorporated the product or part claimed to be defective shall immediately be returned at the Customer s expense to Watlow Anafaze Incorporated Replaced or repaired products or parts will be shipped to the Customer at the expense of Watlow Anafaze Incor porated There shall be no warranty or liability for any products or parts that hav
90. Program outside the original Resource Watlow Anafaze 45 Chapter 5 Programs LogicPro User s Guide To backup a Program 1 Select the File menu 2 Select Backup 3 Select Program The Copy Program dialog box appears as shown in Figure 5 4 4 Selectthe Program you want to backup by clicking on it in the Existing Program s list 5 Enter the new Program name in the New Program Name field A list of the existing Program names is dis played below this field to help insure that you do not use a name that 1s already assigned 6 Click OK to finish the save Click Cancel to abort the backup If a Program already exists in the Resource with the name you entered you are prompted to confirm overwriting the existing Program 7 Click OK to overwrite the existing Program Click No to go back to the Copy Program dialog box and enter a unique name FIBER 12 FIBER 18 Figure 5 4 Copy Program Dialog Box 46 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 5 Programs Deleting a Program To delete an existing Program 1 Select the File menu 2 Select Delete p Select Program The Delete Program dialog box ap pears as shown in Figure 5 5 4 Selectthe Program you want to delete Multiple Programs can be selected by clicking on one Program name after another To deselect a Program click on its name a second time 5 Click OK A message dialog box appears to
91. RIN to be converted to a real number In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagrams program the value of EN is always True In FBD all inputs must be connected to a Variable RIN is the Real To Integer function block real number input to be converted when EN is True Q is the Real To Integer function block output bit This bit is enabled and passes power while a True condition ofthe enable bit occurs OUTP is the Real To Integer function block integer output This is the value of the real number passed to the RIN changed to integer format The Square Root SQRT function block shown in Figure 10 36 on page 156 calculates the square root of the real value entered at its input RIN SQRT places the result in the Variable assigned to ROUT when the enable bit EN is True The values of RIN can be preset to Watlow Anafaze 155 Chapter 10 Function Blocks Inputs Outputs 156 LogicPro User s Guide a constant or assigned a Variable name which allows their value to change dynamically within the program Figure 10 36 Square Root Function Block EN is the Square Root enable bit A True condition of this bit causes the square root of RINto be placed in ROUT
92. ROT LROT 0 000 ccc eee eee 163 Shift BSET ESET ca BANG Mae pedi reg Per els 164 Negation NEG 1 0 0 00 cece eee 165 11 User Defined Function Blocks 167 OVEINIEW fees eet ccs sa Pairs Gud ape NEUA BER DE ERES RATUR UE I a 167 Getting Started i aan cei aban yee id 1p NG Det ee deh ge 167 Defining a New or Editing an Existing UDFB 168 In s Out s and Internals llle 169 UDEB EIGS rore etre hack e re eue RAS HC 172 Compiling and Building a Library lille 174 UDFB in Simulation 00 00 eese 175 Working with UDFB Files lleslel B BIB 177 Editing UDFB Files 2 177 Opening UDFB Files 22 177 Closing UDFB Files 000 cece eee ee 177 Saving UDFB Files 0 000 eee 178 Deleting UDFBs E ee 178 UDEB Tutoriale cn 200s ois lal ont ER IECeEEP5eEEbea unes 179 12 Input Output Drivers 202205 185 Variable Types 00 0 e ee tees 186 Input Output aa pe eee 187 IO SIZ6 0 ue deret utc ees ee ea eee hia 187 PPC 2000 IO Drivers 00 ccc e 188 IO Driver Choice 0000s 188 IO Physical Addresses 00 000 c eee eee eee 188 Using the IO Drivers 00 000 cece eee 192 CPC400 IO Drivers 0 0 0 ccc eee 208 IO Driver Choice 0000s 208 IO Physical Addresses 000000 c cence eee 208 Using the IO Drivers 0 000 cee eee 210 13
93. Rev 3 00 LogicPro User s Guide Help Menu Chapter 2 LogicPro Workplace The Help menu gives you access to the online documentation system This allows you to obtain information about software features and functions while in the middle of a development task There are three levels of information in the online help system as described in Table 2 10 Table 2 10 Levels of Help Type of Help Access Complete online help Use the Help menu Information about the active dialog box or pull down menu Click a Help button or press lt F1 gt Information about the selected menu item Press lt F1 gt Help Menu Commands Table 2 11 briefly describes each Help menu command Table 2 11 Help Menu Options Command Description Index Accesses the LogicPro Help Con tents Simply click on any of the underlined topics to navigate through the Help system This will display either the appropriate help topic or an index of related topics Search for Help On Lets you define a keyword to search on The Help system then lists the keyword s related topics and lets you select one How to Use Help About LogicPro Explains how to use the online help system Displays copyright and version information along with other prod uct information and limits Demo Standard Unlimited Doc 28002 00 Rev 3 00 Watlow Anafaze Chapter 2 LogicPro Workplac
94. Specific IO Drivers 209 Table 12 14 Address Syntax for Database Driver 210 13 Compiler Setup 4 naaa DAA Ee e 221 14 Simulations 22 22 99 x 9 x es See eee xx 225 Table 14 1 Simulation Tools a 228 15 Downloading and Monitoring 235 Table 15 1 The Columns in the Watch Grid 2 245 16 Cross Referencing 249 17 Dynamic Data Exchange 259 XVI Watlow Anafaze Doc 28002 00 Rev 3 00 This Manual Where Do Look Doc 28002 00 Rev 3 00 Introduction Welcome to LogicPro a Microsoft Windows based graphical programming environment that allows you to create and debug programs and manage real time distributed or embedded control systems LogicPro allows you to graphically write a C program without knowing the language LogicPro use the familiar conventions of typical graphical programming languages like Grafcet Ladder Logic etc These languages have evolved into proven effective solutions for automation and control projects If it relates to LogicPro you should be able to find it between these covers with few exceptions Take some time familiarizing yourself with the layout and design of this manual Refer to Table 1 1 on page 2 fora complete listing of the section numbers and titles along with a general overview of what you can expect to find in each chapter Watlow Anafaze 1 Chapter 1 Introd
95. StructA ifndef SIMULATION all the hardware and target operation specific code endif ifdef SIMULATION code that user wants in simulation endif Doc 28002 00 Rev 3 00 Watlow Anafaze 175 Chapter 11 User Defined Function Blocks LogicPro User s Guide To build a UDFB in simulation mode 1 Select the File menu 1 Select the UDFB menu 2 Select Build Simulation Lib The Build UDFB Library for Simulation dialog box appears as shown in Figure 11 5 Hud UDF Libaarg bor 5anulaliem Sample UDFA Figure 11 5 Build UDFB Library for Simulation Dialog Box 3 Select the UDFBs that you want to include in the library Only those UDFBs which are selected will be in the library 4 Click OK LogicPro compiles these files and builds a library with the pre defined macro SIMULATION The library is named UDFB lib with a prefix indicating the kind of resource that is currently open The library is stored in the following directory logicpro simulate be After the simulation UDFB library is built successfully you can use the UDFB in a Ladder diagram as a standard Function Block in simulation When the Program is compiled and linked for simulation the simulation library is automatically linked by LogicPro 176 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 11 User Defined Function Blocks Working with UDFB Files The following sections describe ho
96. To set up timers and scan rates 1 Select the Simulation menu 2 Select Simulation Setup Click the Simulation Setup tool This will cause the Simulation Setup dialog box to open as shown in Figure 14 3 on page 229 3 Click on the desired Timer Tick setting the default setting is 1 4 Click on the desired Number of Scan setting the default is continuous 5 Click OK 228 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Timer Ticks Doc 28002 00 Rev 3 00 Chapter 14 Simulation Simulation Setup Lx Number of Scan Continuous gt 1 Scan gt 10 Scan gt 100 Scan Figure 14 3 Simulation Setup Dialog Box In the continuous scan mode your program is free running but not in real time The Timer Tick increases by the value you choose in the simulation setup This allows you to multiply how much your program increments in time for each scan The Timer Tick setting has the same effect on your simulation regardless of the scan mode selected Timer Ticks set the amount by which timers are incremented on each scan of the logic To modify the Timer Ticks l 2 Select the Simulation menu Select Simulation Setup Click the Simulation Setup tool This will cause the Simulation Setup dialog box to open as shown in Figure 14 4 on page 231 Click on the desired Timer Tick setting the default setting is 1 Click OK Watlow Anafaze 229 Chapter 14 Simulat
97. Up 3 Count Dn Down Q Hang Count Val Reload Figure 8 26 Symbolic Name on Function Block in a Ladder Diagram Program NOTE The outputs of a Function Block need not be at tached to Ladder elements Doc 28002 00 Rev 3 00 Watlow Anafaze 103 Chapter 8 Ladder Diagrams LogicPro User s Guide Adding Comments to Ladder Diagrams To add comments to a rung in the Ladder diagram 1 2 Select the Comment tool Click on the number of the rung to which you want to add comments The Rung Comment dialog box appears see Figure 8 27 Type in the comment Click OK to save the text and close the dialog box Click Cancel to terminate the procedure The comment is displayed immediately above the rung you documented NOTE Any blank line left at the end is truncated in order to conserve space Rung 2 Comment Ea Document your ladder programs by entering descriptive text here Figure 8 27 Rung Comment Dialog Box Hiding Rung Comments You may occasionally want to have a more compact Ladder diagram so that you can view more Ladder logic within a program window In this case to hide all Rung Comments 1 2 104 Select the View menu Deselecting Comment command select the Comment tool Watlow Anafaze Doc 28002 00 Rev 3 00 Function Block Diagrams Function Block diagrams FBD is a graphical programming language provided by LogicPro In the broadest sense this language all
98. Variables that use I O Drivers sorted by I O Driver 2 Report Setup ix UAR Variables cese PA v Ladder up v FBD ED setup v Cross Reference v VO Table Figure 16 3 Report Setup Dialog Box 254 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Variables Setup Ladder Setup Doc 28002 00 Rev 3 00 Chapter 16 Cross Referencing In the Variables Setup dialog box as shown in Figure 16 4 on page 255 check the boxes corresponding to the information to be included in the Variable Report If comments about the Variable are included on the line after the Variable code by selecting Comment If the Initial Value for the Variable is included by selecting Initial Value If the I O Address for the Variable is included by selecting I O Address Ifthe I O Driver for the Variable is included by selecting O Driver If the Size for the Variable is included by selecting Size If the Type for the Variable is included by selecting Type E Variable Setup Lx v Comment Initial Value v MO Address v YO Driver v Size v Type Figure 16 4 Variable Setup Dialog Box In the Ladder Setup dialog box as shown in Figure 16 5 on page 256 you can select what information 1s included for each Rung of a Ladder For example you can select If the rung graphic is output by selecting Graphic If the rung comments are output selecting Comments If a cross reference o
99. YTIMER is off and a value of 1 when the output of that function block is on To view the existing system variables or assign one to a program element 1 Double click a program element 2 For Variable Type select System 3 For Data Type select All You can view System Variables only after having defined a Variable associated with a particular driver and you cannot add delete or edit them Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 6 Variables Project Variables Project Variables are available to all elements in a Project Project Variables are always internal they cannot be a reference to physical I O or database registers To add edit and delete Project Variables 1 Select the Edit menu 2 Select Variables 3 Select Project This will open the Project Variables dialog box see Figure 6 1 on page 51 4 To add a Variable click Add See Adding a Re source Program Variable on page 56 5 To clone a Variable select it and click Clone See Cloning a Project Variable on page 55 6 To edit a Variable select it and click Edit See Edit ing a Project Variable on page 53 7 To delete a Variable select it and click Delete See Deleting a Project Variable on page 54 8 Click OK to accept the changes Click Cancel to cancel all the changes Panject Vanables x IO DE BOUIL ed e e men e o Figure 6 1 Project Variables Dialog Bo
100. a Ladder Diagrams program In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagram program the value of EN is always True In FBD all inputs must be connected to a Variable RIN is the Real Move input Variable The range of values this Variable can assume is from 3 4x10 to 3 4x103 If this Variable is assigned a value out of these ranges unpredictable results will occur Watlow Anafaze 153 Chapter 10 Function Blocks LogicPro User s Guide Outputs Q is the Real Move output bit This bit is enabled and passes power when the enable bit is True Place an output coil on the rung between Q in the function block and the right power rail in a Ladder Diagram program or connect an output Variable to it in a FBD program ROUT is the Real Move output Variable The value of the input Variable is copied to this Variable when the enable bit is True The range of values this Variable can assume is from 3 4x10 5 to 3 4x10 If this Variable is assigned a value out of these ranges unpredictable results will occur ROUT retains its last valid value whenever EN is disabled Integer To Real ITOR The Integer To Real ITOR function block shown in Figure 10 34 converts value of type integer to type real The converted real value is then stored in the real Variable assigned to the output Figure 10 34 Integer to Real Function Block Inputs
101. a directed link occurs Transition Operators Symbols such as and representing mathematical operations used in Transition Conditions Trash Can A folder or directory into which deleted items are placed This allows you to easily recover items that were deleted by mistake This is a feature available in Windows 95 and NT TRUE In Boolean Logic and Algebra TRUE and FALSE are the two possible values an expression may have Truncate Omission of trailing digits that do not fit in the avail able space This occurs regularly when long floating point numbers are rounded down for instance 3 199999 may be truncated to 3 1 U UDFB See User Defined Function Block User Defined Function Block A Program that once defined compiled and added to the library may be used in Ladder Diagrams and Func tion Block Diagrams in the same manner that standard and vendor supplied function blocks are used UDFBs consist of input output and internal variables as well as a set of operations like a normal function block Watlow Anafaze 279 Glossary V Variable The part of a Program that can be used to store data Variables can represent the state of physical inputs and outputs user settings or data or states internal to the Program W Windows When spelled with a capital W Windows refers to any of the Microsoft Windows programs Windows 3 1 for Workgroups Win 95 and NT 4 0 Generical ly windows are p
102. a topic 1 Select the Topic menu 2 Select Open Topic The Select DDE Topic dialog box appears 3 Choose the topic you want to use from the list 4 Click OK Only one topic can be open at a time Once the topic is selected the LogicPro DDE server is ready to run At this point the necessary configuration is read from the FPR file and all hardware is initialized To Close a topic 1 Select the Topic menu 2 Select Close Topic The DDE Server closes the topic You can modify a topic by changing the FPR file with which It is associated As long as the topic is not open it can be modified To Modify a topic 1 Select the Topic menu 2 Select Modify Topic The Select a Topic to Modify dialog box appears 3 Select the topic you want to modify 4 Click Edit 5 Change the name of the FPR file with which you are creating the client server relationship 6 Click OK then click OK again To Delete a topic 1 Select the Topic menu 2 Select Delete Topic This removes the topic from the list of available topics Watlow Anafaze 263 Chapter 17 Dynamic Data Exchange 264 LogicPro User s Guide Once the topic is deleted it cannot be recovered Make sure you really want to delete the topic be fore you do so Item Point Naming In LogicPro an item is a symbolically named Variable Items can be read or written to through the LogicPro DDE server with the exception of real world I
103. a variable to this output in the Variable Assignment dialog box This Variable holds the value unloaded from the stack The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable exceeds these ranges unpredictable results will occur Last In First Out LIFO Doc 28002 00 Rev 3 00 The Last In First Out LIFO function block shown in Figure 10 19 on page 138 creates and manipulates a stack of integers LIFO moves the contents of the input Variable INP to the stack when it encounters a False to True transition of the load bit LD The size of the stack is specified by assigning a constant or symbolic Variable to the SIZE parameter The count Variable CNT tracks the number of integers in the stack When the stack is filled with integers the full bit FUL is True This bit only remains True as long as the count of Watlow Anafaze 137 Chapter 10 Function Blocks LogicPro User s Guide integers in the stack is equal to the size of the stack A False to True transition of the unload bit UNLD moves the last integer entered in the stack to the output Variable OUTP and causes the output bit Q to be True Every succeeding False to True transition of the unload bit continues to move the newest integer from the stack to the output Variable and causes the output bit to remain True until t
104. ally creates two files a header file h and a C file c and then puts these two text files on the window Some of the names will differ if you are using a CPC400 In the header file there is a structure named AddiStruct defined along with four function prototypes In the following example it is not necessary to add additional members to the structure In the C file there are four functions It isn t necessary to write any additional code in the Init Reset and Exit Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s G uide Chapter 11 User Defined Function Blocks functions The structure and these three functions are listed in the following example as they are generated by LogicPro ifndef PCADDIUDFBHeader define PCADDIUDFBHeader define bool char define Int16 short typedef struct Int16 A Intl6 B Intl6 bool EN bool Q JADD1Struct extern int ADD1 bool EN bool Q ADD1Struct ADD1StructA extern extern extern endif int ADD1 bool void InitADD1 ADD1Struct ADD1StructA Int16 A Int16 B void ResetADD1 ADD1Struct ADD1StructA void ExitADD1 ADD1Struct ADD1StructA Doc 28002 00 Rev 3 00 Let s take a closer look at the main function and how to write C code EN bool Q ADD1IStruct ADD1StructA This function is called
105. alog Box Saving a Program When you save a Program LogicPro creates a backup file that contains the previously saved version of the Program The Program appears asa THR file and the backup file appears as a BAK file in the Resource directory To save the currently active Program window 1 Select the File menu 2 Select Save Closing a Program To close a Program 1 Select the editor window with the Program you wish to close from the Windows menu ifit is not already select ed on top 2 Select the File menu 3 Select Close 4 Select Program A message dialog box appears as shown in Figure 5 3 on page 44 if any changes have been made and not saved Doc 28002 00 Rev 3 00 Watlow Anafaze 43 Chapter 5 Programs 44 en LogicPro User s Guide Click Yes to save the Program and create a backup file of the old Program Click No to close the Program without saving Click Cancel to leave the Program open NOTE Additions and deletions of variable definitions are saved when made and do not depend on saving the Program Verify FI FIBER 12 Has Changed Save the Program Figure 5 3 Verify Dialog Box Copying Programs Programs must be copied within the context of their Projects and resources To copy a Program 1 Copy or back up the Project containing the target Pro gram and then open it Copying Projects on page 28 and Backing Up a Project on page 29 Since t
106. alue online 136 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Outputs Chapter 10 Function Blocks Q is the FIFO output bit This bit is enabled and passes power when a False to True transition of the unload bit occurs This bit remains enabled until there are no more values in the stack to unload and the count Variable equals zero FUL is the FIFO full bit This bit is enabled and passes power when the count value is equal to the size value There does not have to be a rung with an output coil placed between FUL in the function block and the right power rail in a Ladder Diagram program or an output Variable connected to it in a FBD program EMP is the FIFO empty bit This bit is enabled and passes power when the count value equals zero A rung with an output coil is not needed between EMP in the function block and the right power rail in a Ladder Diagram program or an output Variable connected to it in a FBD program CNT is the FIFO count Variable In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this output in the Variable Assignment dialog box The value ofthis Variable indicates the number of integers in the stack OUTP is the FIFO output Variable In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign
107. ame 3 Select INT or BOOL from the Type list 4 Select Input or Output by clicking the corresponding check box d Select Database from the IO Driver list 6 Select WORD or BIT from the IO Size list 7 Enter the IO Physical Address The address is D isthe parameter number D is the database offset 8 Click OK Channel Parameter Example To create a variable named Mode 17 that sets the control mode for channel 17 set the options in the Add Program Resource Variable dialog box as illustrated below The parameter number for control mode is 1 Control mode is a channel parameter so the database offset is the channel number 17 Add Program Variable x input v Output 10 Physical Address m E With IO Size of Word Type BOOL INT b Initial Value IO Driver Retained Data Comment 204 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks Analog Input Parameter Example To create a variable named Filter PF1 that sets the input filter for the frequency input on the processor module set the options in the Add Program Resource Variable dialog box as illustrated below The parameter number for input filter is 61 The database offset 162 1s found in the PPC 2000 User s Guide Add Program Variable EMEN Database Doc 28002 00 Rev 3 00 Watlow Anafaze 205 Chapter 12 Function Blocks LogicPro User s Guide Dig
108. ams program the value of EN is always True In FBD all inputs must be connected to a Variable A is the dividend The range of values this Variable can assume is from 32 768 to 32 767 excluding 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 excluding 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur B is the divisor The range of values this Variable can assume is from 32 768 to 32 767 excluding 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 excluding 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur Also if B is assigned a value of zero 0 the enable out bit goes False and C retains Its previous value NOTE If the divisor is 0 an error occurs as per standard mathematical convention Outputs ENO is the Divide enable out bit This bit is enabled and passes power when the enable bit is True as long as the value of B is non zero and value of C does not go out of range C is the quotient C contains the quotient of A and B as long as the enable bit is True The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables No remainders are stored in this value only the whole number value If this Variable is 134 Watlow Anafaze Doc 28002 00 Rev 3 00
109. and execution order To assign a name to a function block Select the Selector tool Double click on the function block you wish to name This causes the Assign Name to Func Block dialog box to appear as shown in Figure 9 4 Enter a unique name for the function block into the Name field You can click List to view all the function block names already assigned in the program Assign Name to Func Block Ed Fa EXECUTION ORDER mz vs 4 Figure 9 4 Assign Name to Function Block Dialog Box If you do not assign a name to a function block LogicPro will assign a unique name to the new function block for you The maximum length of a function block name is ten 10 alphanumeric characters Watlow Anafaze Chapter 9 Function Block Diagrams LogicPro User s Guide 4 Fill in the Execution Order field An execution order is automatically assigned to the function blocks determined by the order in which you created them but it is also possible to change the execution order of the function blocks at any time Execution order is not bound by the apparent layout of the program In the example shown in Figure 9 5 the function block named two is assigned to be first in the execution order then three and then one While the CTU function block called two depends on one it can be executed first because all values are saved from the last cycle during which the program ran and those values are a
110. ar click anywhere on the screen and place the Step into the application work area as needed Simultaneous Transition EI Transitions determine when the process flow passes from a preceding Step to the successive Step along the directed link Simultaneous Transitions are represented by a horizontal line across the vertical directed link Each Transition has an associated Transition condition a single Boolean expression Transition names are local to the program in which the Transition is located Transition Transition Directed Links 4 5 mi 7 Condition i Condition Figure 7 1 Simultaneous Transition Inserting a Simultaneous Transition To insert a Transition from one Step to the next 1 Select the Simultaneous Transition tool 2 Click and drag from the inside of one Step to the inside of another Step A directed link with one Transition appears 3 To add parallel directed links click and drag from the Transition to the inside of a Step 74 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 7 Sequential Function Charts Parallel AND and Single OR Transitions To toggle between parallel and single Transitions using the Simultaneous Transition tool double click near the directed link on the opposite side of the double horizontal line from the Transition Parallel horizontal lines indicate that steps occur in parallel For example in the SFC as illustrated in
111. arameters and a list of channel parameter numbers Global Parameters Global parameter offsets are dependent on the global parameter See the CPC400 Series User s Guide for a complete list of global parameter numbers and their corresponding offsets Using the IO Drivers CPC400 PV The following sections describe and illustrate the use of each IO Driver The CPC400 PV driver allows a logic program to access the process variables PV for each channel To read a PV with a logic program variable 1 Open the Add Program Resource Variable dialog box 2 Enteraunique variable Name Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev 3 00 Chapter 12 Function Blocks 3 Select INT from the Type list 4 Select Input by clicking the check box NOTE A variable using the CPC400 PV driver should al ways be an input an never an output To set the in put to a loop with a logic program use a soft input 5 Select CPC400 PV from the IO Driver list 6 Select WORD from the IO Size list 7 InlO Physical Address field enter the channel number 1 to 5 for CPC404 1 to 9 for CPC408 8 Click OK CPC400 PV Addressing Example To create a variable named My PV 3 that reads the value of the channel 3 s process variable set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Yariable x Name Vi input Output Em 71 lg
112. ariable Names To assign a Variable name to an element 1 Click the Selector tool 2 Double click on the element to which you want to assign a Variable name The Variables dialog box appears as shown in Figure 8 24 3 You can view System Project Resource and Program Variables by checking the appropriate box 4 Select the Variable from this list or create a new Variable using the Add or Clone buttons see Chapter 6 Variables 5 Click OK The Variable name appears over the Ladder element in the program You can change the Variable assignment by double clicking on the element and selecting another Variable from the list NOTE All Ladder elements must be assigned Variable names If an element is not assigned a Variable name an error occurs during the program code generation process Variables fot Variable Type inl BOOL AT IX 0 1 Processor 2010 gt System in10 BOOL AT 6 1X 0 10 Processor 2010 gt Prolect in11 BOOL AT9 amp X 0 11 Processor 2010 Eroje inl 2 BOOL AT 1X 0 12 Processor_ 2010 gt Resource Program Data Type Bool gt Integer gt Long in20 BOOL AT26 1X 0 20 Processor 2010 gt Real in21 B00L AT26 1X 0 21 Processor 2010 gt All Figure 8 24 Variables Dialog Box Doc 28002 00 Rev 3 00 Watlow Anafaze 101 Chapter 8 Ladder Diagrams 102 LogicPro User s Guide Naming and Assigning Variables to Function Blocks Functi
113. art of a graphical user interface used to display information and accept input from users Windows NT A 32 bit preemptive multitasking Operating System created by Microsoft Although the NT 4 0 desktop looks very similar to the Windows 95 desktop there are considerable differences between them Most notable is the higher security and file access available in NT Word A sequence of 16 bits or 2 bytes 280 Watlow Anafaze LogicPro User s Guide Doc 28002 00 Rev 3 00
114. ata is not updated until you close and then reopen the dialog box Click Print to print the on line cross reference listing Click OK to close the dialog box X XRF Figure 16 1 The Cross Reference Pointer Ladder On line Cross Reference To perform a Ladder On line cross reference while in a Ladder window 1 2 Select the Tools menu Select Cross Reference or Click the Cross Reference button on the toolbar The standard pointer changes into a modified pointer as shown in Figure 16 1 Click on a Ladder element Function Block or Rung for which you want to view a cross reference The Cross Reference dialog box appears This dialog lists all the Variables present for that element Function Block or Rung and its location in the Program If you click outside all elements the Cross Reference dialog box appears and lists all the Variables present for the entire ladder window and their location in the Program You can minimize and move the Cross Reference dialog box so that you can view and edit portions of the Program If you change the Program or Variables the Cross Reference dialog box data is not updated until you close and then reopen the dialog box Click Print to print the on line cross reference listing Click OK to close the dialog box Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 16 Cross Referencing Function Block Diagram On line Cross Refere
115. ation for the active window from 10 200 This option allows you to view as little or as much of the active window as you Zoom desire Zoom settings are only kept while the window is open The next time you open the window the zoom setting reverts to the default 100 setting Redraws the active window and dis Repaint plays the latest changes recorded in the system Superimposes a grid pattern over the Grid e workspace as an aid to placing items Allows you to toggle ladder rung com Commens ments on and off in the active window Monitor Pro r n Allows you to see the real time status 9 of the downloaded PLC program Allows you to selectively suspend real time monitoring messages to a Monitor OnOff PLC program on a window by window basis Configuration Displays a partial IEC 1131 3 configu ration descriptor Tools Menu This menu contains the tools associated with your choice of programming language Choose your programming language in the first menu item The other available options are driven by this choice See Table 2 4 on page 12 for a detailed listing of the languages and their options Doc 28002 00 Rev 3 00 Watlow Anafaze 11 Chapter 2 LogicPro Workplace LogicPro User s Guide Table 2 4 The Tools Menu Menu Option Description Language Tools Select the programming language for the active window from the submenu SFC Grafcet Sequential Function Chart language This is th
116. ble Doc 28002 00 Rev 3 00 Watlow Anafaze 215 Chapter 12 Function Blocks LogicPro User s Guide Soft_Bool A Soft Bool can be used in logic programs by creating a variable in the logic program that points to the Soft Bool as if it were physical I O This allows the logic program to examine and set values of Soft Bools The I O address for Soft Bools is the Soft Bool number To read or set a Soft Bool with a logic program variable 1 Open the Add Program Resource Variable dialog box 2 Enter a unique variable Name 3 Select BOOL from the Type list 4 Select Input or Output by clicking the corresponding check box 5 Select Soft Bool from the IO Driver list 6 InthelO Physical Address field enter the Soft Bool num ber 1 256 7 Click OK Soft Bool Addressing Example To create a variable named Soft Bool 178 that sets the value of soft bool 178 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Yariable xc Name Input Output Soft Bool 178 IO Physical Address 178 Increment Type BOOL INT LONG E Initial Value IO Driver CPC400 Digital Out Database Retained Data Soft Bool 216 Watlow Anafaze Doc 28002 00 Rev 3 00 i With 10 Size of LogicPro User s Guide Soft Int Doc 28002 00 Rev 3 00 Chapter 12 Function Blocks A Soft Int can be used in logic programs by creating a variab
117. ble bit until the elapsed time is equal to the preset time The elapsed time retains this value until the enable bit is False If the enable bit becomes False before the elapsed time equals the preset time the elapsed time continues to increment but resets to zero as soon as it reaches the preset value Figure 10 6 on page 123 illustrates the relationship between the inputs and outputs of the TP function block and shows how the INP signal and ET timer determine the state of the output Q INP and Q signals are high or low the ET is an analog value on the vertical axis Time is on the horizontal axis Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 10 Function Blocks LAUL R27 EM E de qu Figure 10 6 Relationship between the Input and Output of TP Function Block Timer On Delay TON Inputs Doc 28002 00 Rev 3 00 The Timer On Delay function block shown in Figure 10 7 provides a time delay for enabling an event at a preset time interval Upon a True condition ofthe enable bit INP TON increments the integer elapsed time ET value in thousandths of a second until the integer preset time PT value is reached Once the elapsed time value equals the preset time value the output bit Q is enabled and remains enabled until the enable bit becomes False The elapsed time value resets to and remains at zero as long as the enable bit is False TON INP4 Q PT ET Figure 10 7 Timer On Delay F
118. bles used for writing values into a Program pro cess or hardware device INT See Integer Interface The junction of two separate processes or devices For example to print a letter you must interface with an operating system to launch a word processor Next you need to interface with the word processor via your keyboard to enter your letter Next the word proces sor needs to interface with the computer Finally your computer needs to interface with a printer to create the letter Interrupt A signal sent to a Program to inform it that an event has occurred Both hardware and software are capable of generating interrupts Integer A positive or negative number with no fractional parts Or Zero L Ladder Diagrams An IEC 1131 3 standardized set of symbols and func tions used to graphically design logic using relays This diagram consists of left and right power rails con nected by rungs on which relays and coils reside Doc 28002 00 Rev 3 00 LogicPro User s Guide Language A system for communicating instructions to a comput er using a defined syntax There are several major types of languages used by computers machine pro gramming and fourth generation are examples of a few of these language types Library A collection of frequently used modules precompiled routines in object code form LIFO Last In First Out Link A connection that exists between modules and routines as a result
119. cPro Workplace Menu Option Description Program Window Variable Customize the application workspace using the following submenu Display Grid by Default Toggles the default setting for display grid between either on or off The grid can also be turned on or off independently on a window by window basis on the View menu Display Comments by Default Tog gles the default setting for display comments between either on or off Comments can also be turned on or off independently on a window by win dow basis on the View menu Default Language Selects the default language for new program win dows The options are SFC default language Ladder FBD Customize how variables are handled Confirm Deletion If selected Log icPro prompts you to confirm your intention to make a deletion Confirm Edit Change If selected LogicPro prompts you to confirm your intention to save a change Auto SFC Operaior If selected the operator dialog box opens automati cally if you attempt to build a transition expression AutoSave Allows you to toggle the AutoSave feature on and off and set the save interval from 5 to 120 minutes FastLink Config Fording Options Establishes a connection between FastLink the LogicPro data API and a single LogicPro project This allows you to browse for the FLK file path establishing Access Time Poll Rate and Message Time Out When monitoring a program
120. cel button to restore all settings to the state in which they existed when you first opened the Project Variables dialog box Resource Variables A Resource Variable can be internal or can be associated with a physical I O point or a database register Resource Variables are available to all Programs written for a Resource To add edit and delete Resource Variables 1 2 Select the Edit menu Select Variables Select Resource The Resource Variables dialog box appears Add Variables by clicking Add edit Variables by clicking Edit or delete Variables by clicking Delete Additional information on these functions is available in the following pages Click OK to accept the changes Click Cancel to cancel all the changes you made to Variables Adding a Resource Program Variable Resource and Program Variables are added in the same manner To add a Resource Program Variable 1 2 56 Select the Edit menu Select Variables Select Resource or Program This opens the Re source Variables or Program Variables dialog box as shown in Figure 6 4 and Figure 6 5 on page 57 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 6 Variables mg cere Boal Figure 6 5 Program Variable Dialog Box 4 Click Add in the Resource Program Variables di alog box The Add Resource Program Variable di alog box appears as shown in Figure 6 6 on page 58 Doc 28002 00 Rev 3 00 Watlow Anafaze
121. ck Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 1 to 32 767 for INT type Variables and 1 to 2 147 483 647 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur Q is the Counter Down output bit This bit is enabled and passes power when the current value is equal to zero Prior to an initial loading of the preset value Q is not enabled even though the current value is set to zero CV is the Counter Down current value In Ladder logic assign this output a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this output in the Variable Assignment dialog box The value of this Variable Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 10 Function Blocks decrements by one every time a False to True transition of the counter down enable bit occurs until the current value equals zero The current value retains this value until the reset bit is True Prior to an initial loading of the preset value CV has a value of zero Counter Up Down CTUD Inputs Doc 28002 00 Rev 3 00 The Counter Up Down function block shown in Figure 10 4 1s a combination of the counter up and counter down function blocks CTUD increments the integer current value CV for every Fals
122. close LogicPro The Cut feature works the same way when working with UDFBs except that the data is stored on the Windows Clip board not the LogicPro temporary file Copy Ctrl C gt Creates a duplicate of the selected object without removing it see note below and places it in a temporary file This material remains in the temporary file until overwritten by subsequent Cut or Copy actions or until you close LogicPro The Copy feature works the same way when working with UDFBs except that the data is stored on the Windows Clip board not the LogicPro temporary file Paste Ctrl V5 Places the content of the temporary file into the active window at the insertion point If you are pasting in a UBFB it is the content of the clipboard that is placed in the active window Pasting does not clear the temporary file The last item placed into it stays there until subsequent Copy or Cut actions or until you close LogicPro Find Searches the active window for a spe cific variable Replace Watlow Anafaze Searches the active window for every instance of a specific value and replaces it with a new user defined value Chapter 2 LogicPro Workplace LogicPro User s Guide Menu Option Description Deletes the selected area from the active window This operation cannot be undone Opens a dialog box and allows you to manage the different kinds of variables Select the var
123. confirm that you want to delete the Program and all its associated variables NOTE If you click OK you remove the Program from the list and delete all associated files There is no way to recover this information so be certain you want to delete these files before you click OK 6 Click OK to delete the Program Or Cancel to abort the deletion Delete Program Lx FIBER 12 Figure 5 5 Delete Program Dialog Box Doc 28002 00 Rev 3 00 Watlow Anafaze 47 Chapter 5 Programs LogicPro User s Guide 48 Watlow Anafaze Doc 28002 00 Rev 3 00 Variables A LogicPro Variable is the name tag given to a piece of data used by various execution elements of the Program Variables are both physical I O and internally represented data LogicPro uses several types of Variables including Project Variables Resource Variables Program Variables Naming Conventions When naming Variables try to be as descriptive as possible especially if there are more than a few Variables in the Program For example Go Light On will prove more useful a name than Variable 1 Variables may be up to 28 characters long Initial Value When a logic program is first run all of the variables are set equal to the initial values specified when the variables are declared or created If an initial value is not explicitly entered in the Add Variable dialog box the variable 1s set equal to zero Unless a variable is set as retentiv
124. control over all aspects of the simulation Doc 28002 00 Rev 3 00 Watlow Anafaze 225 Chapter 14 Simulation LogicPro User s Guide Building a Program for Simulation The LogicPro Simulation feature allows you to scan step through and view individual processes in several ways from start to finish LogicPro allows you to scan your program one time ten times one hundred times or in a continuous free running mode You can also toggle all of your Boolean variables change constants and assign values to all variables This allow you to fully test your program and simulate various operating conditions prior to downloading it to your resource When you are finished with your simulation you will need to compile your program again before it is ready to download to your target resource To start simulation 1 Select the Simulation menu 2 Select Build All and Run The Compiler dialog box will open as LogicPro begins to compile the program in the active window See Figure 14 1 on page 227 Next a DOS window will open as your Borland C application compiles your code see Figure 14 2 on page 227 LogicPro returns you to the Compiler dialog box if there are no errors 3 Click OK This will launch the simulation NOTE If an error occurred when you compiled LogicPro still returns you to the Compiler dialog box but OK will not be enabled You must click cancel and fix your program before proceeding 226 Watlow Anafa
125. core _ to separate words Actions are case sensitive so STATUS LIGHT ON is different than status_light_on When naming Actions choose a name that is self explanatory C C keywords such as if else or while cannot be used as a name Actions can be stored S or Unstored N after execution An N or S appearing in the first cell of the action object indicates this attribute Stored Actions keep the values of variables for the next time the step is active Unstored Actions reinitialize variable values each time the step with which they are associated becomes active To add Actions 1 Select the Action tool 2 Click on the Step to which you want to add Actions The Add Action dialog box appears 3 Enter the name of the Action you want you want to add to the Step 4 Select Stored or Unstored 5 Click OK The Action name now appears next to the Step with which it is associated in the Program To add content to the Action double click on the name of the Action A Program window appears This allows you to program the Action in any of the three programming languages Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Comments COM o Cross Reference 2 Doc 28002 00 Rev 3 00 NOTE Chapter 7 Sequential Function Charts To change the Name or Stored Unstored attribute 1 Select the Selector tool 2 Double click on the Action This opens the Action s program window
126. creat n i ing and using User Function Blocks Defined Function Blocks Information on input out 12 l O Drivers put drivers examples and where to look for more information Information about using 13 Compilers the Borland C compiler Information on the simula tor function of LogicPro specifically how to use it 14 Simulation How to download a pro Downloading and gram to your hardware ta Monitoring and monitor it once it s been downloaded How to use the Cross 16 Cross Referencing Referencing functions of LogicPro 17 Dynamic Data Using DDE for accessing Exchange and editing LogicPro data Definitions of the terms Glossary acronyms and expres sions used in this manual Where to find the informa Index tion you re looking for To help improve the readability of this manual we use different fonts and styles to identify specific actions you will initiate in the program Table 1 2 on page 4 lists the conventions used as well as a brief description of each Watlow Anafaze 3 Chapter 1 Introduction LogicPro User s Guide Table 1 2 Conventions Used Convention Explanation Italics Capitalization Indicates references to Chapters sections Figures and Tables Indicates the proper name of an ele ment of LogicPro Bold Sans Serif Indicates LogicPro menu headings or options Bold San Serif in Square Brackets lt Bold se
127. d function prototypes The structure is similar to the following example typedef struct Input and output symbols XXXXStruct The XXXX will be replaced by the short name of the UDFB The members of the structure are the inputs outputs and internals The user should not change these However the user may add additional members into the structure as needed Note that Boolean variables are included in this structure These variables are used by Function Block instances The C file contains four functions which may look like the following example int XXXX bool EN bool Q int C XXXXStruct XXXXStructA void InitXXXX XXXXStruct XXXXStructA int A int B void ResetXXXX XXXXStruct XXXXStructA void ExitXXXX XXXXStruct XXXXStructA The XXXX will again be replaced by the short name of the UDFB Main Function The main function shown in the following example is called during evaluation of the user Program for every scan and performs the task of the UDFB int XXXX bool EN bool Q all other variables defined XXXXStruc tA return O0 172 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide void WALK j Chapter 11 User Defined Function Blocks All Boolean inputs and outputs are passed as parameters However Boolean inputs are passed as copies of the variable while Boolean outputs are passed as pointers This is because the outputs use a pointer to exchange the val
128. deletion only if the Options Variable Confirm Deletion choice is selected 4 Click Yes to delete the Variables or Click No to cancel the deletion NOTE If you make a mistake you can use the Cancel button to restore all settings to the state in which they existed when you first opened the Project Variables dialog box Cloning a Project Variable Cloning a Variable creates an exact duplicate of that Variable and highlights the symbolic name ofthe copied Variable This makes the creation of similar Variables easier To clone a Project Variable 1 Doc 28002 00 Rev 3 00 Select the Variable you want to clone from the list in the Project Variables dialog box Click Clone The Add Project Variable dialog box is opened with the cloned Variable Edit the Variable name Give the Variable a unique name Edit any other parameters that you wish to be different from the model for the cloned Variable Click OK to add the Variable Click Cancel to return to the Project Variable dia log box without adding the cloned Variable or Click OK Continue This button behaves like the standard OK The only difference between them is that OK Continue will not cause the dialog box to close Watlow Anafaze 55 Chapter 6 Variables LogicPro User s Guide However just like the OK all of the information that you entered or changed is confirmed NOTE If you make a mistake you can use the Can
129. ditors and they may add control and formatting codes that make the file unusable In LogicPro If you want to use a Word Processor for this function you must save the file as a text file Consult your Word Processor manual for more information The file you want to import must have a TXT extension and use a comma delimited field format File Format Specification of Import Export The content of the file is defined as follows The first line indicates where the file will be imported to or exported from The legal form of the first line 1s ei ther PROJECT ProjName RESOURCE Re sName or PROGRAM ProgName where PROJECT RESOURCE and PROGRAM indicate the type of Variables to be imported or exported and ProjName ResName and ProgName are names for the Project Resource and Program The 2nd line should be empty It is reserved for fu ture use The last line must be ENT The other lines have their data separated by commas and each line corresponds to one Variable to be imported or exported Each of the items are defined in the Table 6 1 on page 68 Doc 28002 00 Rev 3 00 Watlow Anafaze 67 Chapter 6 Variables LogicPro User s Guide Table 6 1 File Format Specification of Import Export Max Legal Values Comments Size 1st char must be letter Others Variable Name 26 must be alpha numeric or BOOL for Boolean INT Variable Type 4 BOOL INT for Integer LONG for Short LON
130. double clicking on the Transition and constructing another condition All Transitions in a program must have a Transi tion condition or you will encounter a code gener ator error The Loop Back tool lets you insert a Transition loop back into the program window where control is passed back to a previous Step Loop backs follow the same rules as Transitions Refer to Simultaneous Transition on page 74 for complete information on defining Transition variables To insert a Transition loop back 1 Select the Loop Back tool 2 Click and drag the cursor from the center of one Step to the center of another Step higher in the control sequence Watlow Anafaze 77 Chapter 7 Sequential Function Charts 78 Action ii NOTE LogicPro User s Guide The Action Tool allows you to associate Actions with a particular Step in the program window You can associate zero or more Actions with each Step A Step with zero associated Actions is considered a Wait function The Step is waiting for a successor Transition condition to become true An Action can be a collection of rungs in Ladder language a Sequential Function Chart or a Function Block Diagram The scope of the declaration of an Action is local to the program organization unit containing the declaration Like variables Action names can be any combination of letters and digits as long as the first character is a letter Spaces are not allowed so use an unders
131. dows NT is a platform while a Sun Sparc running UNIX is another Plug and Play A PC hardware and operating system specification in which Windows 95 NT automatically detects and ad dresses PC hardware PnP See Plug and Play Power Rails The vertical lines on the left and the right ends of each rung in a Ladder Program LogicPro does not display the right power rails these are assumed to be there Process This can mean a Program that is running or a task Process Flow The logical control flow of a process Processor Microprocessor the silicon chip that runs the logic for all digital devices and contains the CPU Program Base unit of a Project which defines what the control ler does at what time and in what sequence Program Variables Variables that are only available at the Program level Project The highest level of organization in LogicPro Projects consist of Resources which in turn contain Programs Doc 28002 00 Rev 3 00 LogicPro User s Guide Project Variables Variables that are available to all the Resources and Programs in a Project Pull down menu A command menu specific to each major LogicPro function which drops down from the Menu Bar when selected Pulse A signal characterized by a sharp rise and fall Either the number of these signals count or frequency may be of interest R Radio Button A type of button used in the graphic user interface that allows you
132. e Append Doc 28002 00 Rev 3 00 Importing is the process of loading an ASCII file containing Variable information into a LogicPro Resource or Program To import an existing ASCII file use the following procedure 1 Select the File menu 2 Select Import Variable a Select Project Or Resource Or Program The Import Variable dialog box ap pears 3 Select the type of import operation you want to perform Append Replace All e Replace I O Variables Only Resource and Program only Selecting Append adds the contents of the ASCII file to the existing Project Resource or Program Variables Ifa Variable from the import file has the same name as an existing Variable in your LogicPro Resource or Program a Verify dialog box appears prompting you to replace the Variable Watlow Anafaze 65 Chapter 6 Variables LogicPro User s Guide If you select Then Yes The new Variable data in the ASCII file replaces the Variable data presently in the Resource or Program file No The new Variable data in the ASCII file is ignored and the existing Resource or Program data is unchanged Replace All Selecting Replace All replaces all the existing Resource or Program Variables with corresponding Variables in the import file with the following qualifications e Tfanew Variable name from the ASCII file is identical to an existing Variable in your Resource or Program Variables t
133. e Outputs Move MOVE Inputs Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks Ladder Diagrams program the value of CLR is always False In FBD all inputs must be connected to a Variable Q is the Scan Time Counter output bit This bit is enabled and passes power while a True condition of the enable bit occurs TIME is the scan time Variable The value of this Variable indicates the scan time in thousandths of a second MIN is the minimum scan time Variable The value of this Variable indicates the minimum scan time in thousandths of a second since the program started running MAX is the maximum scan time Variable The value of this Variable indicates the maximum scan time in thousandths of a second since the program started running The Move MOVE function block shown in Figure 10 23 places the value of one Variable into another Variable MOVE places the input Variable INP value in the output Variable OUTP while the enable bit EN is True The output bit Q always assumes the value of the enable bit therefore when the enable bit is True the output bit is also True The symbolic Variables for INP and OUTP must be either INT or LONG When the enable bit is False the OUTP Variable retains its last value Figure 10 23 Move Function Block EN is the MOVE enable bit A True condition of this bit copies the value of INP to OUTP In a program using Ladder logic the value of EN is determined by the Boolean
134. e Status Bar Toolbars Standard Toolbar LogicPro User s Guide The Status bar displays project resource and resource type names from left to right at the bottom of the screen and is available to the developer within the development environment The Status bar also provides information about the currently highlighted menu item There are two different types of toolbars e Standard toolbar Language toolbars Each contains tools designed to make creating and managing LogicPro projects a fast easy and intuitive process The Standard toolbar appears across the top of the screen under the menu bar It provides quick access to common operations such as deleting an object adjusting the screens zoom setting saving monitoring compiling starting and stopping ToolTips display on screen descriptions of all toolbar buttons simply by pausing the pointer on them Figure 2 2 Two Views of the LogicPro Standard toolbar showing various active buttons Table 2 12 Toolbar Definitions Button Description E Open Project car Open Resource Open Program Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev 3 00 Chapter 2 LogicPro Workplace Button Description Print Documentation Edit Project Variable s CH Save Edit Cut Edit Copy Edit Paste 8 Edit Delete amp Zoom Ratio E H Edit Resource Variable s Edit Program
135. e RB when the enable bit EN is True If the relationship RA gt RB is True then the output bit Q is enabled The output bit is disabled either when the enable bit becomes False or the value of RA is no longer greater than RB The values of A and B can be preset to a constant or assigned a symbolic name which allows their value to change dynamically within the program Watlow Anafaze 145 Chapter 10 Function Blocks 146 Inputs Output LogicPro User s Guide RGT EN 4 Q RA RB Figure 10 26 Real Greater Than Function Block EN is the Real Greater Than enable bit A True condition of this bit causes the comparison between RA and RB to occur In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of CU is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagrams program the value of EN is always True In FBD all inputs must be connected to a Variable RA is one comparison value The range of values this Variable can assume is from 3 4x10 to 3 4x10 8 If this Variable is assigned a value out of these ranges unpredictable results will occur RB is another comparison value The range of values this Variable can assume is from 3 4x10 to 3 4x10 If this Variable is assigned a value out of these ranges unpredictable resul
136. e it is set equal to its intitial value each time the logic program is run Doc 28002 00 Rev 3 00 Watlow Anafaze 49 Chapter 6 Variables 50 LogicPro User s Guide Retentive Variables A Retentive Variable is a Variable that Remembers its last state if power is interrupted Returns that value after power has been restored LogicPro forgets all of the Variable values when a power down of a Resource occurs unless they are tagged as Retentive System Variables NOTE System Variables give you access to internal system status and allow you to view items such as I O Driver and Resource status LogicPro generates these Variables automatically You can access System Variables through the Variable List dialog box in the same manner as Project Resource and Program Variables Whenever an driver is referenced in your Program LogicPro creates two Variables Flag and Stat for each driver Flag Variable is Boolean in nature and goes high if an error is detected e Stat Variable is an integer and contains the river status bits or error code LogicPro also creates system variables whenever function blocks are added to a program These variables can be used elsewhere in the program The system variables are named by concatenating the user set name of the function block and the function block s I O symbols For example MYTIMER Q is a system variable that holds a value of 0 when the output of function block named M
137. e EN neat 107 Function Blocks 0 000 eee eee eae 107 Cross Reference 0c eee 107 Creating an FBD Program 00 0 cece eee 107 Inserting Function Blocks 0 200 e eee eee 108 Inserting Variable Elements 0200s eee eae 109 Connecting Inputs and Outputs 00 2c eee ee 109 Assigning Variables to Variable Elements 110 Assigning Names and Execution Orders to Function Blocks 0 c eee eee 111 Cutting Copying Pasting and Deleting 112 10 Function Blocks HABAN RR RS 115 Standard Function Blocks cece eee ees 115 Timing and Counting Elements 0 00 000 eee eee eee 115 Counter Up CTU 2 2 2220 aaea 116 Counter Down CTD lssssssseee eee 117 Counter Up Down CTUD 22 ees 119 Timer Pulse TP nh 121 Timer On Delay TON 00 0c eee ee 123 Timer Off Delay TOF 0 0c cece e eee eee 124 COMPANSOMN A cu ose skis teste xe EE MEG UE erg e DANG Eye PG 126 Greater Than GT 000 c cece tees 126 Less Thanm ET iiis senda RR EXER See SG ite 127 Egua To EQ ir fees e rete E PER DA 128 Atithinetio eee eer poe Sent SPE cet e DET NAK RU 130 Add ADD dra RIDE Eo Pate Ped woke well efte dos 130 Subtract SUB s suon i a a n e E E E a E R 131 Multiply MULT 2 0 2202 aana 132 Divide DIV 2 eR III 133 Data Manipulation lille BIA 135 First In First Out
138. e LogicPro default language for any program win dow You may change the defaults using the Options menu LD Ladder This option selects the Ladder Diagram language for the active window FBD This option selects the Function Block Diagram language for the active window The selected language determines the options for the rest of this menu The options displayed correspond directly with the tools available from the differ ent Language Toolbars For more infor mation please refer to the appropriate section concerning the language you wish information on NOTE Once you select a language and start to build a program LogicPro prevents you from changing the lan guage as long as any element exists in the window UDFB User Defined Function Block Menu This menu gives you control over the various tools available when you re creating or editing a UDFB There are compile and build options available for both execution and simulation purposes because each creates its own variant of the UDFB and saves it in the corresponding library See Table 2 5 on page 13 for a detailed list and explanation of the items on the UDFB menu 12 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 2 LogicPro Workplace Table 2 5 The UDFB Menu Menu Option Description Compile for Execution Build Execution Lib Compiles and error checks a UDFB in the active window for downloading using the co
139. e LogicPro DDE Server polls the controller and reads the data every 3 milliseconds 5 Check the Load Default Topic on Start up box 6 Click Setup The Select a Topic as the Default Topic dialog box appears 7 Select a topic from the DDE topic list 8 Select the Don t show warning messages option 9 Click OK to close this dialog and then click OK to close the Logicpro DDE Configuration dialog box All parameters set in the Configuration menu are saved in the ASCII text file LP DDE CFG You can view this file at any time Never modify the LP DDE CFG file directly with a text editor Creating the Application FPR File Doc 28002 00 Rev 3 00 Before continuing you need to create the Dynamic Data Exchange file to be used with the LogicPro DDE Server An FPR file is created and used by the LogicPro DDE Server during code generation of your Program This filename is the same as the application and is placed in the resource directory This FPR file contains all the information the LogicPro Server needs to establish communications with the controller The file information is updated every time code is generated for your Program This DDE file contains the following information Program ID a unique number that matches this file to the executable file EXE in the controller with the FPR file Target the controller resource you are using e Port how and where the control
140. e been subject to misuse accident negligence failure of electric power or modification by the Customer without the written approval of Watlow Anafaze Incorporated Final determination of warranty eligibility shall be made by Watlow Anafaze Incorporated If a warranty claim is considered invalid for any reason the Customer will be charged for services performed and expenses incurred by Watlow Anafaze Incorporated in handling and shipping the returned unit If replacement parts are supplied or repairs made during the original warranty period the warranty period for the replacement or repaired part shall terminate with the termination of the warranty period of the original product or part The foregoing warranty constitutes the sole liability of Watlow Anafaze Incorporated and the Cus tomer s sole remedy with respect to the products It is in lieu of all other warranties liabilities and remedies Except as thus provided Watlow Anafaze Inc disclaims all warranties express or implied including any warranty of merchantability or fitness for a particular purpose Please Note External safety devices must be used with this equipment Table of Contents List OF FiQUIES cse eRhIP go RE RLE LERRA E EP teed ee XI List t Tables suosuukexwwRd ga Rex M Rond X NG XV 1 Introductionis ora dx rr ese esr ae dc tx rg 1 hiss Manuals d vers EE RC ed e pU Ren P RP EET RSS 1 Where Do LOOK ivi xm ea Te Cen E EE oho ea 1 Conventions Used dus as
141. e following LogicPro default communications settings will match the PPC 2000 s port 1 when the rotary CONFIG switch Is set to position A Baud 19200 e Parity Even e Device Address 1 34 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 4 Resources To configure communications with the PPC 2000 1 Select the correct Communication Port for your PC 2 Selecta Parity of Even Odd or None 3 In the Device Address field enter the controller address for the PPC 2000 4 Inthe ROM Size field enter 128kB Controllers with 2 03 and earlier firmware support up to 40 kB 5 Select a Baud Rate The PPC 2000 supports 9600 and 19200 6 Inthe Time out field enter 2000 milliseconds 7 Click OK Or Click Cancel to exit this screen CPC400 Attributes The CPC400 has the following default communication settings Baud Rate 19200 Controller Address 1 To configure communications with the CPC400 1 Select the correct Communication Port for your PC 2 Select a Parity of None 3 In the Device Address field enter the controller address you set in the CPC400 4 Inthe ROM Size field enter 64 kB 5 Selecta Baud Rate The CPC400 supports 2400 9600 and 19200 6 Inthe Time out field enter 2000 milliseconds 7 Click OK Or Click Cancel to exit this screen Doc 28002 00 Rev 3 00 Watlow Anafaze 35 Chapter 4 Resources LogicPro User s Guide Editing a Resource To edit
142. e of the enable bit therefore when the enable bit is True the output bit is also True The symbolic Variables for scan time minimum and maximum must be of type Integer These values change dynamically as the program runs as long as the enable bit is True When the enable bit becomes False the Variables retain their last value The clear bit CLR resets and holds the Variables at zero whenever it is True Figure 10 22 Scan Time Counter Function Block EN is the Scan Time Counter enable bit A True condition of this bit causes the scan time to be calculated In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagrams program the value of EN is always True In FBD all inputs must be connected to a Variable CLR is the Scan Time Counter clear bit When this bit is True the values of TIME MIN and MAX are set and remain at zero In a Ladder Diagram program the value of CLR is determined by the Boolean evaluation of elements placed between the left power rail and CLR in the function block In FBD programs the value of CLR is determined by whatever is connected to EN If no contacts are placed on the rung before CLR in a Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guid
143. e to True transition of the counter up enable bit CU and decrements the current value for every False to True transition of the counter down enable bit CD The current value continues to increment or decrement depending on which enable bit becomes True until either the integer preset value PV or zero is reached At this point the up output bit QU is enabled if the current value equals the preset value or the down output bit QD is enabled if the current value equals Zero The output bit remains enabled until reset by a True condition of the R or LD bit respectively When the reset bit R is True the current value resets and remains at zero When the load bit LD is True the current value resets and remains at the preset value Figure 10 4 Counter Up Down Function Block CU is the Counter Up enable bit As long as the reset bit is False each False to True transition of this bit increments the current value until the current value equals the preset value In a program using Ladder logic the value of CU is determined by the Boolean evaluation of elements placed between the left power rail and CU in the function block In FBD programs the Watlow Anafaze 119 Chapter 10 Function Blocks 120 LogicPro User s Guide value of CU is determined by the Variable connected to CU If no contacts are placed on the rung before CU the value of CU is always True but a transition never occurs This bit has higher evaluation
144. ed with this contact is True then the contact will close Thus allowing power to pass to the next element on the rung If the associated Variable is False the contact remains in the Open state Watlow Anafaze 83 Chapter 8 Ladder Diagrams 84 LogicPro User s Guide To use the Normally Open Contact 1 Select the Normally Open Contact tool 2 Position the pointer where you want the contact placed and click Normally Closed Contact AH The Normally Closed Contact tool allows you to insert normally closed contacts into the program window During a single evaluation of the Ladder diagram if the Variable associated with this contact is True then the contact will open Thus preventing power to pass to the next element on the rung If the associated Variable is False the contact remains in the Closed state which means power will pass when the element is False or 0 To use the Normally Closed Contact 1 Select the Normally Closed Contact tool 2 Position the pointer where you want the contact placed and click Off To On Transitional Contact JE The Off To On Transitional Contact tool allows you to insert off to on transitional contacts into the program window The Offto On Transitional Contact is sometimes known as the Positive Transitional Contact During a single evaluation of the Ladder diagram if the Variable associated with this contact changes from False to True then the contact will clo
145. eger LONG specifying the number of bits the rotation should be done for per scan Watlow Anafaze 163 Chapter 10 Function Blocks 164 Outputs Shift RSFT LSFT Inputs LogicPro User s Guide D is the INT or LONG integer Variable on which the rotation is to be performed also an output Q is the rotation function s output bit The output bit is disabled if the enable bit is False and is enabled as soon as the enable bit is True D is the rotation function s output destination as well as input The input INT or LONG integer will be replaced with the result of the rotation operation symbol1 RSFT LSFT The shift function shown in Figure 10 46 performs a bit level shift of 16 bit or 32 bit integers the right shift RROT moves the i th bit into the 1 1 th bit as the lower bits are lost and the higher padded with zeros the left rotation LROT moves the i th bit into the i 1 th bit as the highest bits are lost and the lower bits padded with zeros The operation is performed on either BIN or BCD numerals which are treated simply as a collection of bits such that range checking is not performed symbol2 W L WP or LP The Variable D needs to be declared as integer type of size specified in this symbol as follows Two memory sizes are available for this integer word length W 16 bit and long word L 32 bit In addition the function block s calculation can be performed continuously or only
146. el to abort the action Delete eet Dohned Funcbson Block Sample UDEH Figure 11 7 Delete User Defined Function Block Dialog Box 178 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide UDFB Tutorial Selecting a Resource UDFB Definition Doc 28002 00 Rev 3 00 Chapter 11 User Defined Function Blocks The following section is an example for writing a very simple User Defined Function Block that adds two numbers This section will give a detailed explanation for each step as the development of the UDFB continues The first step in writing a UDFB is to open a resource UDFBs are tied to specific resource platforms because of hardware and target operation system specific dependencies The next step is to define the UDFB and how it will relate to the LogicPro application Program In this example the UDFB Is expected to add two integers and assign the sum to a third integer You may also want to control when the addition occurs through the Ladder logic Once the functionality of the UDFB is certain the next step is to design the interface between the UDFB and the LogicPro application This is done by listing the inputs and outputs The first Boolean input and output should be Anenable input to enable the addition e Anoutput that indicates that the addition is valid and that the UDFB is enabled These input and output are Boolean because they have either a true or false state Three operands are
147. elect the Edit menu Select Replace The Replace Variable s dialog box appears Enter the name of the Variable you want to find in the Variable to find field Enter the name of the new Variable in the New Vari able field This new name will replace the old Variable name Click OK to find the first instance of the Variable name When Then The Variable is found The first instance of the Variable name is highlighted A message dialog box appears asking you to confirm replacing the instance of the found Variable There are no addi tional instances of the Variable name The dialog boxes closes and the editor window becomes active The Variable name does not exist in the Ladder Diagram A warning box appears with the message Variable not found Click OK to clear the dialog box from the screen Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Import Export Chapter 6 Variables 6 Click Yes to replace the found instance of the Variable and find the next instance repeat step 5 Click No to find the next instance without changing the found instance repeat step 5 Click Cancel to stop searching without replacing the found instance Import Export is a feature that allows the user to import load or export save Resource or Program Variables to or from an ASCII file You can create or edit these files outside of LogicPro Importing an ASCII fil
148. ents as well as a reference to some of the more common Windows features you will use For additional information please refer to your Microsoft Windows documentation The Workplace is made up of several different Screen Elements Figure 2 1 on page 6 illustrates the LogicPro workspace and identifies the following elements Menu Bar Status Bar Standard Toolbar Language Toolbars Doc 28002 00 Rev 3 00 Watlow Anafaze 5 Chapter 2 LogicPro Workplace Standard Toolbar Bar Menu Bar E 5 Fasora ia mire o RAN Status LogicPro User s Guide Language Toolbar Figure 2 1 The LogicPro Workplace There are two ways to choose an item from a menu With the mouse click a menu then click the item Press the lt ALT gt key press the underlined letter in the menu s name and press the underlined letter in the item s name There are ten 10 menus available File Edit View Tools UDFB Execution Simulation Options Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide File Menu Doc 28002 00 Rev 3 00 Windows Help Chapter 2 LogicPro Workplace LogicPro enables the appropriate menus Each of these menus allows control of a specific part of LogicPro This menu provides easy access to most tools you will need for creating opening and saving files and printing reports Additionally tools for Importing and Exporting variables are available
149. er for the end user to learn because the Program will have the look and feel of any other Windows program Append To add data to the end of an existing file without over writing any of the existing data Application Programs designed for end users as opposed to Pro grams that supports systems operations Examples of applications include databases word processors and LogicPro ASCII American Standard Code for Information Interchange a code for representing English character as numbers with each letter assigned a number from 1 127 ASCII Based Editor See Text Editor Doc 28002 00 Rev 3 00 Glossary ASCII File A text file in which each byte is equivalent to a char acter as defined in ASCII Sometimes referred to as plain text files Associate Linking a data file with an application In MS DOS and Windows environments the three letter extension forms the basis for association For instance the doc extension identifies a file as a MS Word document Attributes Characteristics of a file indicating several of its prop erties such as read only archive compressed hidden and system B Back Up The practice of maintaining a duplicate copy of impor tant data at an alternative location Thereby guarding against data loss due to mechanical failure of a drive Baud Rate The number of oscillations or bits transmitted per sec ond A common unit of measure for data transmission BIOS An ac
150. er the I O physical address See Chapter 12 I O Drivers for addressing information Select one of the following I O sizes from the list of NOTE sizes e Bit a binary digit that can hold the value of 0 or 1 Word 16 bits in length 10 Enter any comments in the Comment field 11 Click OK If the I O point is an Input you must choose Input If the point is an output choose Output if you in tend for the logic Program to set the output s state You may also choose Input for a physical output if its state is set by the closed loop control Program and the logic Program is only interested in sensing the value or state of the physical out put For database registers choose Input or Out put based on whether the logic Program sets the value output or just reads it input The Variable appears in the dialog box list The next time you add a Variable the Add Variable dialog box remembers the previously entered type and size fields This makes it easier and faster to add many similar Variables to a Resource Program Editing a Resource Program Variable Doc 28002 00 Rev 3 00 Resource and Program Variables are edited in the same manner To edit a Resource Program Variable 1 Select the Variable you want to edit in the Resource Program Variables dialog box 2 Click Edit The Edit Variable dialog box appears 3 Enter the appropriate information in all the dialog box fields according t
151. es and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur SIZE is the LIFO size Variable The value assigned to this Variable determines the size of the stack For this reason assign a constant value and do not change this value online This Variable should be either a positive integer or a constant Q is the LIFO output bit This bit is enabled and passes power when a False to True transition of the unload bit occurs This bit remains enabled until there are no more values in the stack to unload and the count Variable equals zero FUL is the LIFO full bit This bit is enabled and passes power when the count value is equal to the size value A rung with an output coil is not needed between FUL in the function block and the right power rail in a Ladder Diagram program or connect an output Variable to it in a FBD program EMP is the LIFO empty bit This bit is enabled and passes power when the count value equals zero A rung with an output coil is not needed between EMP in the function block and the right power rail in a Ladder Diagram program or connect an output Variable to it in a FBD program Watlow Anafaze 139 Chapter 10 Function Blocks 140 Bit Shift SL Inputs LogicPro User s Guide CNT is the LIFO count Variable The value of this Variable indicates the number of integers in the stack OUTP is the
152. es the pointer appear as the traditional arrow Using the pointer you can either click on a single element or you drag around a group of elements you wish to modify This is the default tool for FBD When you create a new program using the FBD language this tool is already selected Straight Connections The Straight Connections tool is used to make input and output connections between Function Blocks and Variables Use this tool to drag from any element or portion of an element to any another Selecting this tool makes your pointer look like the traditional arrow with a line arrow attached to the bottom of it Inverted Connections The Inverted Connections tool is almost identical to the Straight Connections tool The differences are 106 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Variables Function Blocks Cross Reference XRF 4 Chapter 9 Function Block Diagrams Both elements to be connected using this tool must represent Boolean logical data Whatever the state at the source of the connection the data will be inverted at its destination if it was on true at the source it will be off false at the destination Selecting this tool makes your pointer look like it does for Straight Connections except the arrow attached to the bottom of your pointer has a circle at its point The Variables tool allows you to insert new Variable elements into your program Selecting this tool makes your
153. esource and program files In LogicPro the project is a receptacle for all related resources and programs The project contains all the programmable controller elements necessary to describe and implement an automated task Projects can contain any number of resources and programs This enables you to set up Projects with numerous controllers and steps or smaller projects with only one or two resources Creating a Project 26 Creating a Project is the first task when using LogicPro You must create a Project before you can Configure a controller resource Design a program for a device Define individual action steps To create a new project 1 Select the File menu 2 Select New 3 Select Project The New Project dialog box appears as shown in Figure 3 2 Hes Project x tame OOO Directory cMaoglcpra Figure 3 2 New Project Dialog Box Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 3 Projects 4 Select the directory in which you want to store your new project 5 Enter the name for the New Project The Project name must conform to standard DOS naming conventions and have no more than eight characters 6 Click OK LogicPro creates a new directory on your drive This directory contains all the files related to this Project LogicPro automatically prompts you to create a New Resource See Editing a Resource on page 36 for how to create a New Resource You ca
154. evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagrams program the value of EN is always True In FBD all inputs must be connected to a Variable Watlow Anafaze 143 Chapter 10 Function Blocks LogicPro User s Guide INP is the MOVE input Variable The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables Output Q is the MOVE output bit This bit is enabled and passes power whenever the enable bit is True OUTP is the move output Variable The value of the input Variable is copied to this Variable when the enable bit is True OUTP reverts to its last valid value whenever EN is disabled Scale SCL The Scale SCL function block shown in Figure 10 24 scales an INT value of 0 to 4095 to a REAL value based on RMAX and RMIN parameters Figure 10 24 Scale Function Block Inputs EN is an enable bit and has a Boolean value If the bit is False the evaluation of the SCL is skipped If the bit is True the SCL function block is evaluated INP is an INT constant or Variable from 0 to 4095 which will be scaled to a REAL based on RMAX and RMIN range settings The absolute range of values this Variable can assume is from 32 76
155. f conditions exist that allow contacts positioned along a rung of the Ladder to close then the circuit is complete and power flows to an output coil By placing several contacts in series you can create an AND condition in Boolean Logic Conversely an OR condition results from placing contacts in parallel with each other The Ladder logic executes from top to bottom and from left to right Although LogicPro does not draw the right power rail on the screen the circuit functions as if it were there This programming technique provides you with a variety of contacts and coils thus giving you considerable flexibility in creating intricate program logic This chapter explains the various contacts and coils accessible to you in LogicPro along with some insight on how to use them If you have ever programmed a relay Ladder you are already familiar with most of these concepts and symbols To select Ladder diagram as the language for a program window select LD Ladder from the Tools Language menu However if the program window has existing Sequential Function Chart or Function Block Diagram elements a language change will not be allowed Watlow Anafaze 81 Chapter 8 Ladder Diagrams 82 Ladder Toolbar LogicPro User s Guide When you select Ladder diagram as the language for a program window LogicPro Displays the Ladder toolbar on the right side of the screen e Changes the menu items in the Tools menu To use any
156. f the Variables in the rung are output by selecting Cross Reference Watlow Anafaze 255 Chapter 16 Cross Referencing LogicPro User s Guide fCross Reference is checked choose whether the All Elements or only Coils are included in the cross reference output LogicPro automatically resizes Ladder diagrams to fit the page This results in smaller images Ladder Setup Figure 16 5 Ladder Setup Dialog Box SFC Setup In the SFC Setup dialog box as shown in Figure 16 6 you can select what information is included in reports for each SFC For example you can specify Tfthe SFC graphic is output by selecting Graphic e Tfacross reference of the Variables in the SFC is output by selecting Cross Reference SFC Setup Figure 16 6 SFC Setup Dialog Box 256 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 16 Cross Referencing FBD Setup In the FBD Setup dialog box as shown in Figure 16 7 you can select what information is included for each SFC For example you can specify e Ifthe FBD graphic is output by selecting Graphic Tfacross reference ofthe Variables in the FBD is output by selecting Cross Reference y Graphic Figure 16 7 FBD Setup Dialog Box Doc 28002 00 Rev 3 00 Watlow Anafaze 257 Chapter 16 Cross Referencing LogicPro User s Guide 258 Watlow Anafaze Doc 28002 00 Rev 3 00 Dynamic Data Exchange Dynamic Data Exchange DDE is a com
157. ffer ent path D Dialog box On screen box accessed to view and adjust settings and input information DDE See Dynamic Data Exchange Debug The art of finding and correcting errors in a design or Program Declaration In programming this is the act of assigning a name and data type to a variable or constant Default Value The initial value of a variable if you do not declare an initial specific value Device A component or machine that attaches to a computer Examples of devices include printers modems con trollers etc Each device requires software called drivers to allow the computer and the device to com municate with each other Directory Part of an operating system s organizational hierarchy The directory is a file that keeps information on other files that are figuratively speaking stored within it 272 Watlow Anafaze LogicPro User s Guide Directed Links SFC element which with transitions directs the Pro gram flow from one step to another DLL An acronym for Dynamically Linked Library Documentation Feature of LogicPro that allows the developer to attach text and comments to Program elements in the control process Program Download The transfer of data in the form ofa file from a source device to a peripheral device Downloading The act of performing a download Drive A shortened form of diskdrive Any media on which data can be stored and retrieved Dr
158. fore BIT the default value of BIT is False In this scenario only zeroes are shifted into the register SIZE is the SL size Variable The value assigned to this Variable determines the size of the stack For this reason assign a constant value and do not change this value online This Variable should be either a positive INT or LONG Variable or a constant Outputs Q is the SL output bit This bit is enabled and passes power when a bit with a True value is shifted out of the register The output bit remains enabled until a bit with a False value is shifted out of the register or the clear bit is True When a bit with a False value is shifted out of the register the output bit does not pass power Figure 10 21 illustrates how bits are shifted through the SL function block Bit Shift Left m a Figure 10 21 Example of How Bits Shift Through the SL Function Block Doc 28002 00 Rev 3 00 Watlow Anafaze 141 Chapter 10 Function Blocks 142 LogicPro User s Guide Scan Time Counter SCAN Inputs The Scan Time Counter SCAN function block shown in Figure 10 22 calculates the scan time system performance while running a program SCAN calculates the scan time when the enable bit EN is True The current scan time TIME is displayed along with the minimum value MIN and the maximum value MAX in thousandths of a second The output bit Q always assumes the valu
159. full screen editors have eclipsed them in popularity The full screen editor allows you to edit any ofthe text displayed on the screen Notepad is an example of a full screen text editor bundled with all Microsoft Win dows platforms Tile Arrangement of open Program windows so an equal portion of each window is displayed on the screen at the same time TIME Current Scan Time Timer Base A tool used in simulation to accelerate the testing time Tool Bar LogicPro displays a collection of programming tools along the right side of the screen The tools available to you depend on the language selected The toolbar consists of a series of buttons with icons representing different programming functions See Chapter 2 The LogicPro Workplace for a detailed description of all the tools available for each language Toolkit A collection of software tools designed to assist in your development and editing tasks ToolTips A user aide that allows you to identify an icon or other desktop element by resting your cursor on it momen tarily The Program responds by opening a small box and displaying the object s name next to the cursor along with a brief explanation in the Status Bar Doc 28002 00 Rev 3 00 Glossary Transition Decision point in an SFC program that determines which step should be active Transition Condition A Boolean expression or variable the value of which determines whether a transition along
160. g ing in value from 32 768 to 32 767 including zero Long Integer Variables are 32 bit double word nu meric variables ranging in value from 2 147 483 648 to 2 147 483 647 Real Variables are numeric variables with floating point decimals ranging in value from 3 4 x 103 to 3 4 x 1033 Enter any comments you wish to make about the Vari able in the Comment field Click OK when all the parameters for this Variable are defined or Click OK Continue to add the Variable and keep the Add Project Variable dialog box open and add anoth er Variable The Variable with the parameters you selected now appears in the dialog box list The next time you add a Variable the Add Variable dialog box remembers the previously entered type and size fields This makes it easier and faster to add many similar Variables to a Project Editing a Project Variable To edit a Project Variable 1 Highlight the Variable you want to edit in the list in the Project Variable dialog box Click Edit The Edit Project Variable dialog box ap pears as shown in Figure 6 3 on page 54 Edit the Variable name type or initial value Click OK when all the parameters for this Variable are defined With the Edit Project Variable dialog box open you can Doc 28002 00 Rev 3 00 Open a new Edit Project Variable dialog box and add a New Variable by clicking the Add button Duplicate the existing Variable s settings in a new Edi
161. g or real Type NOTE You can only force Boolean variables Doc 28002 00 Rev 3 00 Watlow Anafaze 245 Chapter 15 Downloading amp Monitoring 246 LogicPro User s Guide Column Description I O Address Comments Input Output address of the variable In Variable Watch the variable I O address contains the following elements Type of variable for input Q for output Size X for bit B for byte W for word O Physical Address Driver name For example an I O address in Variable Watch could be IQ X 0 0 2 Processor 2010 Any comments that you attached to the variable when you created or last edited it Initial The initial value that you gave the vari able when you created or last edited it Retained Indicates whether the variable retains the current value when the program stops running If the cell is blank the variable retains the current value when the program stops running and applies that value when the program starts again If NO is shown in the cell the variable resets to the initial value when the pro gram starts again On Line Constant Changes LogicPro allows you to change all ofthe constants assigned to a program while monitoring it in either Execution or Simulation modes All constants assigned to a Ladder diagram Function Block s input may be modified To modify a constant assigned to a Function Block s input 1 Double
162. gure 10 16 Multiply Function Block Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Inputs Outputs Divide DIV Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks EN is the Multiply enable bit A True condition of this bit causes the values of A and B to be multiplied and the result stored in C In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder program the value of EN is always True In FBD all inputs must be connected to a Variable A is a multiply value The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur B is another multiply value The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur ENO is the Multiply enable out bit This bit is enabled and passes power when the enable bit is True as long as the value of C does not go ou
163. gure 16 2 4 Select to output documentation about The entire Program Or The current window Or e The current window and all actions below it 5 Click Print Setup to define which printer you want to use to print the output documentation 6 Click Report Setup to define what information is included in the report For more information on defining the report s components see Report Setup on page 254 7 Click Print to send the output to the printer El Print Lx Whole Program Current Window gt Current and Sub Windows Figure 16 2 Print Dialog Box Watlow Anafaze 253 Chapter 16 Cross Referencing Report Setup LogicPro User s Guide In the Report Setup dialog box as shown in Figure 16 3 on page 254 you can select What Variable information is printed in the cross reference Variable codes by using Variables Setup Ladder documentation by selecting Ladder Specific information included in the Ladder documentation output by clicking the Ladder Setup button SFC documentation by selecting SFC Specific information included in the SFC documentation output by clicking the SFC Setup button FBD documentation by selecting FBD Specific information included in the FBD documentation output by clicking the FBD Setup button Cross reference for the entire Program by selecting Cross Reference I O Table by selecting I O Table The I O Table is a list of all Program
164. h w CFsiosd Ho Figure 9 3 Symbolic Name on Function Block in a FBD program NOTE Branched connections are not currently allowed Connections can only be made on a one to one basis in other words a Variable element can only be connected to one input or output NOTE Feedback loops to from a single function block connections which both originate and terminate on the same element or elements of a common function block are not allowed BUT it is permis sible to create a feedback loop to a system of function blocks Assigning Variables to Variable Elements To assign variables to Variable elements 1 Select the Selector tool 2 Double click on the Variable element you wish to assign This element must already be connected to either an input or output This causes the Variables dialog box to appear 3 From the dialog box select the appropriate Variable Type and Data Type 4 Either select the Variable you wish to assign to this Variable element or click on Add to create a new Variable 110 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 9 Function Block Diagrams For more information on creating new Variables refer to Adding a Project Variable on page 52 or Adding a Resource Program Variable on page 56 Assigning Names and Execution Orders to Function Blocks Doc 28002 00 Rev 3 00 NOTE NOTE Each function block in an FBD program must be assigned a unique name
165. he Project may contain many Resources delete all Resources that do not contain the target Program a Select File b Select Delete c Select Resources The Delete Resources dialog box appears d Select the Resources to delete e Click OK Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 5 Programs 3 Since the Resource may contain many different Programs delete any unnecessary Programs a Select File b Select Delete c Select Programs The Delete Program dialog box appears d Select the Programs to delete e Click OK The temp directories can be deleted to minimize the size ofthe Project Using any file utility such as Windows Explorer delete the temp directories 1bk through 5bk located within the Project directory Saving a Program with a New Name Save As The Save As feature allows you to save an open Program under a new name To use this feature 1 Select the File menu 2 Select Save As 3 Enter the new name you wish the Program to be saved as A list of the existing Program names display below this field LogicPro will not allow you to overwrite an exist ing Program 4 Click OK to finish the save Click Cancel to go back to the Program window Backing Up a Program Doc 28002 00 Rev 3 00 You can backup or copy a Program if The backed up Program is located within the same Resource The Program is closed You cannot move or copy a
166. he block These variables are used for Function Block instances The user has the option of updating these variables As a general rule they should be set to match the Function Block variables ADD1 C code can be written as in the following example EN bool Q ADD1Struct ADD1StructA Declare long variable to hold result even if addition result is out of integer range heck that block is enabled EN Perform addition Resu Check that resul Result gt 32768 amp amp Result lt 32767 if X RS xQ Assign Result lt et T long AD D1StructA gt A ADD1IStructA gt B t is within int range 32768 to 32767 Bool output to signify successful completion to integer output ADD1StructA gt C Result Copy bools to s instance variables ADD1StructA gt EN tructure for access as Function Block ue EN Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 11 User Defined Function Blocks ADD1StructA gt Q Q else return 0 void InitADD1 ADD1Struct ADD1StructA Int16 A Int16 B ADD1StructA gt A A ADD1StructA gt B B void ResetADD1 ADD1Struct ADD1StructA void ExitADD1 ADD1Struct ADD1StructA Doc 28002 00 Rev 3 00 Watlow Anafaze 183 Chapter 11 User Defined Function Block
167. he entire stack is unloaded At this point the count Variable equals zero the output bit is False and the empty bit EMP is True This bit only remains True as long as the count of integers in the stack is equal to zero A True condition of the clear bit CLR clears the stack of any integer values and resets the count Variable to zero thus causing the empty bit to be True The output Variable retains its last value when the stack is cleared LD 4 UNLD FUL CLR EMP INP CNT SIZE OUTP Figure 10 19 Last In First Out Function Block Inputs LD is the LIFO load bit As long as the clear bit is False each False to True transition of this bit loads the input Variable value into the stack until the count value equals the size value In a program using Ladder logic the value of LD is determined by the Boolean evaluation of elements placed between the left power rail and LD in the function block In FBD programs the value of LD is determined by the Variable connected to LD If no contacts are placed on the rung before LD the value of LD is always True but a transition never occurs This bit has the lowest evaluation priority of the input bits in this function block UNLD is the LIFO unload bit As long as the clear bit is False and the count value is not zero each False to True transition of this bit unloads the newest integer in the stack to the output Variable In a Ladder Diagram program the value of UNLD is determined by
168. he existing Variable is replaced by the new one e Tfanew Variable name from the ASCII file is not identical to any existing Resource or Program Variable name a Verify dialog box opens informing you that the specific Variable does not exist The dialog then prompts you to Append the Variable If you select Then Yes The Variable is added to your Resource of Program Variable No The new Variable is ignored Ifa Variable exists in your Resource or Program and no duplicate named Variable exists in the import file it is unaffected and still exists after the import operation is complete Replace I O Variables Only Replace I O Variables only results in a similar effect to the Replace All option except that only the I O Variables are affected as described above Any other Variables are not affected in any way 66 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 6 Variables Verifying the Import Operation After importing a file you can verify the result by opening the Resource or Program Variables within LogicPro and observing the Variable list You can edit each individual Variable to ensure that the Import operation executed correctly and the result is what you expected Creating or Editing an ASCII file You can create a file for import using any ASCII text editor such as Microsoft s MS DOS Editor Word processors like Microsoft s Word are not ASCII text e
169. he following section describes the logical function blocks found in the standard category The Logical AND function block shown in Figure 10 37 acts exactly like a logical and gate If both inputs are True the output is enabled On the other hand if even one of the inputs are False the output is disabled All inputs and outputs of this function block must be Boolean AND A 1 C B Figure 10 37 The Logical AND Function Block A Boolean input element B Boolean input element C Boolean output element The Logical OR function block shown in Figure 10 38 acts exactly like a logical or gate If either or both of the inputs are True the output is enabled On the other hand if all of the inputs are False the output is disabled All inputs and outputs of this function block must be Boolean B Figure 10 38 The Logical OR Function Block A Boolean input element B Boolean input element C Boolean output element Watlow Anafaze 157 Chapter 10 Function Blocks 158 LogicPro User s Guide Vendor Provided Function Blocks Comparison CMP This section provides information and examples of vendor provided function blocks In this section the terms symbol 1 symbol 2 and symbol 3 are used These terms refer to the labels shown within each of the function blocks as shown in Figure 10 39 Symbol 3 Figure 10 39 Vendor Provided Function Block diagram Vendor provided comparison and
170. hemselves to accommodate the new element Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 8 Ladder Diagrams NOTE The coil must always be the last element on a rung The editor issues a warning when a user at tempts to put the coil anywhere else Inserting Function Blocks To add a Function Block to a Ladder diagram Doc 28002 00 Rev 3 00 1 Select the Function Block tool The Function Block dialog box appears as shown in Figure 8 4 Select the type of Function Block you want Standard Or Vendor Provided or User Defined Select the name of the Function Block you want from the list Click OK Click the location on the screen where you want to insert the Function Block The Function Block appears in that location See Figure 8 5 and Figure 8 6 on page 90 Function Block x Standard gt Vendor Provided gt User Defined Figure 8 4 Function Block Dialog Box You can place Function Blocks on an existing rung with elements on either side as shown in Figure 8 6 on page 90 or you can insert the block along with a new rung In either case Watlow Anafaze 89 Chapter 8 Ladder Diagrams NOTE LogicPro User s Guide the surrounding rungs and elements shift to accommodate the newly added Function Block MG E Figure 8 5 Rung Before Adding a Function Block Figure 8 6 Rung With a Function Block Added More detailed informatio
171. iable type from the follow ing list Project Resource Program Changes the attributes of an object within an existing project Modifies the different configurations dependent on your selection from the following submenu Clear Del Variables Attributes Resource Driver Program Action User Defined Function Block NOTE Changes to variables within LogicPro such as Add Edit or Delete take place immediately and do not depend on a Program save Cut Copy and Paste functions are available pri marily with text and cannot be used with most graphical program objects To test if an object can be cut copied or pasted select it then select the Edit menu item to see if the Cut and Copy selec tions are available You can only paste cut or copied elements or text into a window of the same type For example if you copy a rung from a ladder diagram you can only paste it into a ladder diagram LogicPro dis ables the paste function if you are in a different language type window 10 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 2 LogicPro Workplace View Menu This menu allows you to customize the appearance of your workspace See Table 2 3 for a detailed listing of each menu item An enabled selection is easily identified by a checkmark to the left of a menu item Table 2 3 The View Menu Menu Option Description Changes the magnific
172. ic program to access the state of each of the digital outputs To read or set a digital output with a logic program variable l 2 3 4 e T Open the Add Program Resource Variable dialog box Enter a unique variable Name Select BOOL from the Type list Select Input or Output by clicking the corresponding check box Select CPC400 Digital Out from the IO Driver list In the IO Physical Address field enter the digital output number 1 to 34 Click OK CPC400 Digital Out Addressing Example To create a variable named My Dig Out that sets the value of the 23rd output on a CPC400 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Variable My Dig Out CPC400 Digital Out Watlow Anafaze 213 Chapter 12 Function Blocks LogicPro User s Guide Setpoint A setpoint can be used in a logic program by creating a vari able in the logic program that points to the setpoint parameter as if it were physical I O This allows the logic program to ex amine or set the value of a setpoint The I O address for Set point is constructed from the channel number only To read or set a setpoint with a logic program variable 1 Open the Add Program Resource Variable dialog box 2 Enter a unique variable Name 3 Select INT from the Type list 4 Select Input or Output by clicking the corresponding check box Nn Select Setpoint from the IO Driver list 6
173. ies of program variables in a spreadsheet format To use this feature you must Configure the Variable Watch utility e Select variables in the Watch Grid spreadsheet After configuring Variable Watch and selecting variables to view you can e View the values of the variables e Change the value of a variable as your program runs Force Boolean variables e Save the current view and value settings Watlow Anafaze 241 Chapter 15 Downloading amp Monitoring 242 LogicPro User s Guide Configuring Variable Watch Variable Watch gets its data from FastLink a separate communications program Use LogicPro to configure FastLink 1 If you have made changes or switched communications ports on the PC since you last compiled and downloaded the program select Build All and Run from the Exe cution menu Select FastLink Config from LogicPro s Option menu The FastLink Configuration dialog box ap pears Enter the FLK file that corresponds with the project that you are working in NOTE The name of the FLK file is the same as the name of the project and resides in the same directory The FLK is created when you compile the project 4 3 6 7 8 9 10 Enter the Access Time Enter the Message Timeout time Enter the Poll Rate Enter the amount of retries Click OK Save your program s if necessary and close LogicPro To start FastLink click Start on the Windows task bar then click Program
174. ilable Item Names ssesse 264 Excel Spreadsheet DDE Sample cece eee 264 Setting Up Excel to Read 0 a 266 GIOSSALY sez cia ees oe BKA AA stew CP ROC 269 Doc 28002 00 Rev 3 00 Watlow Anafaze Table of Contents LogicPro User s Guide X Watlow Anafaze Doc 28002 00 Rev 3 00 List of Figures 1 Introduction 2222022 428g gate eee Gove DOT RERERELAE 1 2 LogicPro Workplace seco bez REEEXRESESERPEBRERREER 5 Figure 2 1 The LogicPro Workplace 0 cece ne 6 Figure 2 2 Two Views of the LogicPro Standard toolbar showing various active buttons lille 18 3 Projects sessa enu a A pEUCEERE PS MAN Ka DD TAAS 25 Figure 3 1 Projects Hierarchy liliis 25 Figure 3 2 New Project Dialog Box 0 cee eee 26 Figure 3 3 Open Project Dialog Box 0 0 eects 27 Figure 3 4 Rebuild Project List Dialog Box 1 0 0 0 c eee ee 28 Figure 3 5 Copy Project Dialog Box eee 30 Figure 3 6 Delete Project Dialog Box 1 2 0 cece ee 32 4 JROSOUICES ic cctccccot ee ue ctw ERE E EL Li E RAE 33 Figure 4 1 New Resource Dialog Box 0 cece tee 33 Figure 4 2 PPC 2000 Attributes Dialog Box 0 00 34 Figure 4 3 Edit Resource Dialog Box anaana 36 Figure 4 4 Copy Resource Dialog Box iliis esee 38 Figure 4 5 Delete Resource Dialog Box naana 39 Figure 4 6 Open Resource Dialog Box
175. ilding and compiling executable code for a resource See Editing a Resource on page 36 in order to verify or change the communications port selection 4 Select Execution menu 5 Select Build All and Run Click on the Build All and Run tool This will build the runtime executable download it to the target control ler and run your logic control program 6 The Downloading dialog box will open during the download displaying transfer statistics and any errors en countered 7 You can start and stop the run time executable by click ing the Start Executable tool or Terminate tool Alternatively if a runtime executable has already been built 1 Ifdownloading to a PPC 2000 controller a Set the control mode for each channel to Off b Set each alarm to Disabled 2 Tf downloading to a CPC400 controller note any alarms Once downloading commences all alarms are automati cally acknowledged Input readings during downloads are not accurate and may vary widely due to allocation of CPU re sources for downloading Stopping closed loop control and disabling alarms ensures that outputs remain off during download 3 Select the Execution menu 4 Select Download and Run Click the Download and Run tool on the Standard toolbar to just download the runtime executable to the controller and run your logic control program Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 15 Downloading amp Mon
176. in the evaluation loop of your Program It is called when the rung of Ladder logic that it resides on or a Function Block diagram is being evaluated All Boolean inputs are given to the function passed by their copies All other inputs are passed by reference through the structure In our example ADD1 use the structure pointer ADD1 StructA to get the value of either A or B Any output can use a pointer to exchange the value from the Function Block to the variable specified by the Ladder diagram In this example we use a pointer C to pass the value of our arithmetic operation to the variable assigned in the Ladder diagram The final parameter that is passed to the function is a pointer to a structure Watlow Anafaze 181 Chapter 11 User Defined Function Blocks typedef struct include int A long 182 int int A B int Ce bool bool Q JADD1Struct EN PCADD1 h DD1 bool Result LogicPro User s Guide This structure holds all variables that are passed to the Function Block New members can be added to the end of this structure These new members will then retain their value even after the function exits Each instance of the UDFB will have its own separate instance of the structure so interaction between several instances of the same Function Block can be prevented Boolean variables are created within this structure to match the boolean variables defined for t
177. ing and Replacing a Variable In a Program 62 Using the Find Command lees 62 Using the Replace Command 0 cece een ee eae 64 ImportUEXpOLE 4 eoe Awl oho ating beret be eid 65 Importing an ASCII file 2 2 0 0 0 00 cece 65 Verifying the Import Operation 0000 eee eeee 67 Creating or Editing an ASCII file 000 0000 e eee 67 Exporting an ASCII file eibi kr re been ced aed 70 Verifying the Export Operation lisse 70 IV Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Table of Contents 7 Sequential Function Charts 71 About SEQ unu ER d cece By wk serine e RAT aha ges pd 71 Using SFCs in LogicPro 0 71 ORG TOODA maka recte na aka Ng AA 72 SIE rA 73 Origin Step nes 73 Sl 73 Simultaneous Transition 00 cece eee 74 Loop Back ense Rer ene SO aca 77 ACION rr eL 78 COMMEeONtS c acer d aT enge a Aa ea Re e a 79 Cross Reference 2 om cv peu Rx e e y e ana A 79 8 Ladder Diagrams LL 81 Ladder Toolbar 0 00 cee ees 82 SII PD EMT 83 Normally Open Contact 0 0 00 cece ee eee 83 Normally Closed Contact 00 0 c cee eee 84 Off To On Transitional Contact eee eee eee 84 On To Off Transitional Contact 0c eee eee 85 Normal Coll aco Sed kaa RUN ee SA es eh ECIAM 85 Latched Coll ridurre Rade hoy Gud E Se ER ed 85 Unlatched Coil
178. ing offsets Watlow Anafaze 191 Chapter 12 Function Blocks 192 Using the IO Drivers Processor_2010 LogicPro User s Guide The following sections describe and illustrate the use of each IO Driver The Processor_2010 driver supports the digital I O on board the PPC 2010 Processor module To associate a variable with a digital I O point 1 e ocu NO CA T Open the Add Program Resource Variable dialog box Enter a unique variable Name Select BOOL from the Type list Select Input or Output by clicking the corresponding check box Select Processor 2010 from the IO Driver list Enter the IO Physical Address The address is 0 0 ZZ 1s the module I O number 1 48 Click OK To associate a variable with the pulse input LION donc uBe your sp Open the Add Program Resource Variable dialog box Enter a unique variable Name Select INT from the Type list Select Input by clicking the check box Select Processor 2010 from the IO Driver list Select WORD from the IO Size list Enter the IO Physical Address The address is 0 Y 1 Y is the type of I O 1 Count 2 Frequency Click OK Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks PPC 2010 Processor Module Addressing Example To create a variable named My Dig Out that sets the value of the 234 output on a PPC 2010 module set the options in the Add Program Resource Variable dialog box as illust
179. inputs must be connected to a Variable RA is one comparison value The range of values this Variable can assume is from 3 4x103 to 3 4x10 5 If this Variable is assigned a value out of these ranges unpredictable results will occur RB is another comparison value The range of values this Variable can assume is from 3 4x10 5 to 3 4x10 5 If this Variable is assigned a value out of these ranges unpredictable results will occur Q is the Real Less Than output bit This bit is enabled and passes power when the enable bit is True and the value of RA is less than the value of RB The Real Equal To REQ function block as shown in Figure 10 28 on page 148 tests if a real Variable value is equal to a reference value REQ tests whether one value RA is equal to another value RB when the enable bit EN is True If the relationship RA RB is True then the output bit Q is enabled The output bit is disabled either when the enable bit becomes False or the value of RA is no longer equal to RB The values of RA and RB can be preset to a constant or assigned a symbolic name Watlow Anafaze 147 Chapter 10 Function Blocks 148 Inputs Output Real Add RADD LogicPro User s Guide which allows their value to change dynamically within the program RB Figure 10 28 Real Equal To Function Block EN is the Real Equal To enable bit A True condition of this bit causes the comparison between RA and RB to occur In a program u
180. ion LogicPro User s Guide Increment Simulation Timer Ticks Clicking the Increment Simulation Timer Ticks button allows you to multiply the active Timer Ticks setting by a factor of n 1 where n the number of times you click the button This only effects the next Scan cycle For example consider a Timer On Function Block If you have the Timer Ticks set at 10 and click the Increment Simulation Timer Ticks button twice n 2 then in the next Scan cycle the timer will increment by 30 ticks Timer Tick Setting 10 x Number of clicks on the Increment Simulation Timer Ticks button 2 1 10 x 2 1 30 Scan Simulation Logic 9 Number of Scan 230 Clicking the Scan Simulation Logic button causes LogicPro to execute the number of scans selected in the simulation setup For instance if you selected 10 as the number of Scans then pushing this button will result in an evaluation of all logic conditions 10 times Modifying Number of Scan allows you to define how many times your program executes each time you click on Scan 1 Select the Simulation menu 2 Select Simulation Setup Click the Simulation Setup tool This will cause the Simulation Setup dialog box to open as shown in 3 Click on the desired Number of Scan setting the default is continuous 4 Click OK Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 14 Simulation Resetting the Simulation During simula
181. irst argument B is the CMP function s second argument Q is the CMP function s output bit The output bit is disabled if the enable bit is False as well as if the logical operation performed computes to False symboli CALC This function block shown in Figure 10 41 on page 160 implements simple arithmetic and logic computations on integer inputs A and B and reports the result in the integer output C The calculation is performed if and only if the enable bit EN is True symbol2 W L WP or LP The Variables A B and C need to be declared as integer type of size specified in this symbol as follows Two memory models are available for these integers word length W 16 bit and long word L 32 bit If the calculation to be performed is division SYM3 or multiplication SYM3 and the second symbol is L the outcome of the computation will be a double 64 bit integer In addition the function block s calculation can be performed continuously or only as pulses when the enable bit EN switches value from false to true In the continuous computation case integers are marked as W or L while in the Pulse computation case they are marked as WP or LP Watlow Anafaze 159 Chapter 10 Function Blocks Inputs 160 NOTE LogicPro User s Guide symbol3 comparison In the CAL function block this symbol specifies the exact type of calculation to be made and takes on one value as shown in Table 10 1
182. is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagram program the value of EN is always True In FBD all inputs must be connected to a Variable RA is a multiply value The range of values this Variable can assume is from 3 4x10 to 3 4x103 If this Variable is assigned a value out of these ranges unpredictable results will occur RB is another multiply value The range of values this Variable can assume is from 3 4x10 5 to 3 4x10 5 If this Variable is assigned a value out of these ranges unpredictable results will occur ENO is the Real Multiply enable out bit This bit is enabled and passes power when the enable bit is True as long as the value of RC does not go out of range Place an output coil on the rung between Q in the function block and the right power rail in a Ladder Diagram program Watlow Anafaze 151 Chapter 10 Function Blocks 152 Real Divide RDIV Inputs LogicPro User s Guide RC is the product value RC contains the product of RA and RB as long as the enable bit is True The range of values this Variable can assume is from 3 4x10 to 3 4x10 5 If this Variable is assigned a value out of these ranges ENO is disabled RC reverts to its last valid value whenever ENO is disabled The Real Di
183. is the unique name of one of several serial ports on a PC COM2 The name of a serial communication port This is the unique name of one of several serial ports on a PC Configuration File A file that contains operating parameters for an appli cation or operating system For example in Windows ini files contain important Windows configuration information While in the MS DOS environment this information coexists with information for other Appli cations in the config sys file Constants A value used in programming that never changes dur ing the lifetime of an application The other type of value used in programming is the variable and its value may change during Program execution Contacts Nodes through which energy flows such as normally open and normally closed contacts Control Logic The characteristic behavior of Programs created in LogicPro i e SFC Ladder and FBD The com mands issued by these Programs to govern the opera tions of machinery or other hardware Controller The device that accepts and runs the logic Program created with LogicPro Watlow Anafaze 271 Glossary Cross Reference LogicPro feature that enables the developer to view the settings of variables to help discover logic or Pro gram errors Current Directory This is the directory in which you are currently work ing The operating system assumes that all referenced files exist in this directory unless you specify a di
184. ital I O Parameter Example To create a variable named InOrOut 5 that examines the direction parameter setting for the fifth I O point on the processor module set the options in the Add Program Resource Variable dialog box as illustrated below The parameter number for direction is 132 The database offset 5 is found in the PPC 2000 User s Guide Add Program Variable Database 206 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks Global Parameter Example To create a variable named Ambient 1 that reads the ambient temperature at the first cold junction compensation sensor on the first Analog In module set the options in the Add Program Resource Variable dialog box as illustrated below The parameter number for ambient temperature is 140 The database offset 1 is found in the PPC 2000 User s Guide Add Program Variable Database Doc 28002 00 Rev 3 00 Watlow Anafaze 207 Chapter 12 Function Blocks 208 LogicPro User s Guide CPC400 IO Drivers IO Driver Choice The IO Driver allows the logic program to examine or set an I O value or other value stored in the database Choose the appropriate driver for the value which you want to access Table 12 10 describes what data can be accessed with each IO Driver Table 12 10 Data Accessed by the IO Drivers IO Driver Data Accessed CPC400 PV Process variable scaled analog input value for any channel
185. itoring 5 Youcan start and stop the runtime executable by clicking the Start Executable tool _or Terminate tool 6 The Preparing for downloading box will open dur ing the preparation period of the download Next the Downloading box will display See Figure 15 1 PRC 000 Download m PPC 2000 Download Dosnload file o DRHIVRTST HEX PLC program size i 125653 Bytes in ba transtemaed i 30964 Bytes transferred 1778 Downloading DRWATST HEX 5 done Cancel Figure 15 1 Downloading Monitoring a Program To monitor a Program You can verify that the control logic is working properly by inspecting that status of different logic elements in a monitoring window Program monitoring exchanges messages between LogicPro and the target resource Note also that the status of the logic elements displayed on a monitoring window is NOT real time 1 Select the View menu 2 Select Monitor On Off Click on the Monitor On Off tool Doc 28002 00 Rev 3 00 Watlow Anafaze 237 Chapter 15 Downloading amp Monitoring NOTE SYET F Time Monitermy Lart Reply 100A 35 LogicPro User s Guide Before you can use the monitor function you need to compile and download your program to a re source 3 LogicPro displays the most recently downloaded pro gram window The flashing green dot on the right side of the Status Bar indicates that LogicPro is actively communicating with the target resource If
186. iver Software that allows a computer and a device to com municate with each other See Device Dynamic Data Exchange Communication protocol that allows LogicPro to send and receive data and instructions to other Windows ap plications such as Excel in a client server relation ship E Element Basic programming unit of LogicPro such as a step or transition in SFC or a coil or function block in Lad der diagram Doc 28002 00 Rev 3 00 LogicPro User s Guide Executable File The output of compiled source code or object code which can be read and executed directly by a computer processor Executable Path Operating System Path where the Executable File re sides Execution Library See Library Export Variables Saving Variables from LogicPro Programs Projects or Resources These variables are normally written to a reusable file Expression A combination of symbols constants and variables that represent a value and are recognizable to the pro gramming language F FALSE In Boolean Logic and Algebra FALSE is one of two possible values of a logical expression TRUE is the other condition FBD See Functional Block Diagrams Field An area set aside for specific data For example an Employment Application will contain several fields for your name and your address In database manage ment you will find three types of fields required op tional and calculated FIFO First In First
187. k In FBD programs the value of UNLD is determined by the Variable connected to UNLD If no contacts are placed on the rung before UNLD the value of UNLD is always False This bit has higher evaluation priority than the LD bit in this function block CLR is the FIFO clear bit When this bit is True the stack is cleared of any values and the count Variable is set to zero In a Ladder Diagram program the value of CLR is determined by the Boolean evaluation of elements placed between the left power rail and CLR in the function block In FBD programs the value of CLR is determined by the Variable connected to EN If no contacts are placed on the rung before CLR the value of CLR is always False This bit takes the highest evaluation priority of the input bits in this function block INP is the FIFO input Variable In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The value ofthis Variable is placed in the stack at the location of the count Variable The range values this Variable can assume is from 32 768 to 32 767 including 0 If this Variable is assigned a value out of these ranges unpredictable results will occur SIZE is the FIFO size Variable This value assigned to this Variable determines the size of the stack For this reason assign a constant value and do not change this v
188. k After Deletion 114 Watlow Anafaze Doc 28002 00 Rev 3 00 Function Blocks This chapter explains in detail the function and I O requirements for each of the standard and vendor provided Function Blocks used in FBD and LD programs For information on writing your own Function Blocks see Chapter 11 User Defined Function Blocks The Function Block tool allows three types of function blocks to be inserted into Ladder Diagram and Function Block Diagram programs e Standard LogicPro e Vendor Provided e User Defined Standard Function Blocks The following sections describe the standard function blocks available in LogicPro These standard function blocks fall into one of six categories Timing and Counting Comparison e Arithmetic Data Manipulation e Real Number Logical Timing and Counting Elements The following sections contain descriptions of timing and counting function blocks found in the standard category Doc 28002 00 Rev 3 00 Watlow Anafaze 115 Chapter 10 Function Blocks 116 Counter Up CTU Inputs LogicPro User s Guide The Counter Up function block shown in Figure 10 1 enables an output after a preset number of transitions from False to True occur The CTU block increments the integer current value CV for every False to True transition of the counter up enable bit CU The current value continues to increment until it reaches the integer preset value PV At that poi
189. l Lan guage Graphical Object Symbols used to represent functions in a Graphical Language In LogicPro examples of Graphical Objects include contacts coils blocks etc I O Input output this refers to any process that exchanges data through a computer either writing data to it re trieving data from it or both Typically this term is used to identify software and hardware that are non computational in nature For example a printer or a hard drive are I O devices since they are non compu tational but a CPU is not since it computational l O Address A unique identifier for I O devices Computer Pro gram used by LogicPro to transfer information to and from a hardware controller Resource or other periph eral device VO Driver Computer Program used by LogicPro to transfer infor mation to and from a hardware controller Resource or other peripheral device Icon A visual symbol in the Windows environment IEC 1131 International Electrotechnical Commission standard designed to enhance interpretability by providing a common programming language across a variety of controllers and platforms 274 Watlow Anafaze LogicPro User s Guide IEC The International Electrotechnical Commission Import Variables Retrieving saved Variables from a reusable text file for LogicPro Programs Projects or Resources Input The action of reading values into a Program process or hardware device Input Variable Varia
190. l is the name of the particular input output or internal when the UDFB is graphically represented in the Ladder diagram and must be unique within the UDFB LogicPro does not allow two symbols ofthe same name in one UDFB Watlow Anafaze 169 Chapter 11 User Defined Function Blocks LogicPro User s Guide The symbol must Usealetter from A to Z for the first character e Be four characters or less in length e Not use a space or other illegal character The type defines what kind of variable you can assign to the particular input A UDFB may have up to five inputs or outputs but the first input and output must be Boolean and all Boolean inputs must come before any other type of inputs There must be at least one Boolean input and at least one Boolean output The input controls enable the block outputs The output should show that the block is active A UDFB may have up to fifteen internals Internals are an option for a UDFB They aren t required Operations There are three operations associated with each IN s OUT s and Internal group Insert Edit Delete NOTE You can not Edit or Delete if no symbols are defined To insert an Input Output or Internal l Select the position in which to insert your symbol If there is a symbol defined in that position already that symbol will be moved down one spot and the new symbol will be placed in that position 2 Click Insert The Add Symbol Definition dialog bo
191. l to the preset time ET is the timer off delay elapsed time The value of this Variable increments in thousandths of a second when triggered by a False condition of the enable bit until the Watlow Anafaze 125 Chapter 10 Function Blocks 126 Comparison Greater Than GT LogicPro User s Guide elapsed time is equal to the preset time The elapsed time retains this value until the enable bit is True again Prior to the first initialization of this function block the elapsed time does not increment even though the enable bit is False Figure 10 10 illustrates the relationship between the inputs and outputs of the TOF function block and shows how the INP signal and ET timer determine the state of the output Q INP and Q signals are high or low ET is an analog value on the vertical axis Time is on the horizontal axis Timer Off Delay TOF Timing INP ET na y Q Figure 10 10 Relationship Between Inputs and Outputs of TOF Function Block The following section contains descriptions of comparison function blocks found in the standard category The Greater Than GT function block shown in Figure 10 11 tests if a value is greater than a reference value GT tests whether one value A is greater than another value B when the enable bit EN is True If the relationship A gt B is True then the output bit Q is enabled The output bit is disabled either when the enable bit is False or the value
192. lation can be performed continuously or only as pulses when the enable bit EN switches value from False to True In the continuous computation case integers are marked as W or L while in the Pulse computation case they are marked as WP or LP Figure 10 47 The Negation Function Block EN is the NEG function block s enable bit the conversion is performed if it is True A is the integer INT or long integer LONG Variable to have NEG performed on it Watlow Anafaze 165 Chapter 10 Function Blocks LogicPro User s Guide Outputs Q is the NEG function s output bit The output bit is disabled if the enable bit is False and is enabled as soon as the enable bit is True B is the NEG function s output destination as well as input The INT integer or LONG integer will be replaced with the result of the NEG operation 166 Watlow Anafaze Doc 28002 00 Rev 3 00 User Defined Function Blocks Overview Getting Started Doc 28002 00 Rev 3 00 LogicPro provides comprehensive functionality to create edit and use User Defined Function Blocks UDFB Users can write their own Function Blocks in C and use them within a LogicPro Ladder Program UDFBs are very powerful tools you can use to handle such tasks as e Support a specific hardware device Performing an application specific control function Performing complex math equations UDFBs can greatly simplify your Programs and facilitate tr
193. le in the logic program that points to the Soft Int as if it were physical I O This allows the logic program to examine and set values of Soft Ints The I O address for a Soft Int is the Soft Int number To read or set a Soft Int with a logic program variable 1 Open the Add Program Resource Variable dialog box 2 Enter a unique variable Name 3 Select INT from the Type list 4 Choose Input or Output by clicking on the corresponding check box en Select Soft Int from the IO Driver list 6 Select WORD as the lO Size 7 Inthe lO Physical Address field enter the Soft Int number 1 100 8 Click OK Soft Int Addressing Example To create a variable named Soft Int 35 that reads the value of soft int 35 set the options in the Add Program Resource Variable dialog box as illustrated below Add Pingram Yannik EH v Input Output IO Physical Address o Ju With IO Size of Watlow Anafaze 217 Chapter 12 Function Blocks 218 Database LogicPro User s Guide The Database I O Driver is used to examine or set values for any closed loop control parameter not supported by one of the other drivers The specific parameter value is addressed with the parameter number and its database offset To associate a variable with a value in the database 1 2 3 4 CA Open the Add Program Resource Variable dialog box Enter a unique variable Name Select INT or BOOL from the Type list Choose Inpu
194. le with a digital I O point Digital IO 2040 1 Open the Add Program Resource Variable dialog box 2 Enter a unique variable Name 3 Select BOOL from the Type list 4 Select Input or Output by clicking the corresponding check box Select Digital IO 2040 from the IO Driver list 6 Enter the lO Physical Address The address is X 0 Z X is the module address 21 26 Z is the module I O number 1 32 7 Click OK CA Doc 28002 00 Rev 3 00 Watlow Anafaze 195 Chapter 12 Function Blocks LogicPro User s Guide To associate a variable with a counter input 1 Open the Add Program Resource Variable dialog box Enter a unique variable Name Select INT from the Type list Select Input by clicking the check box Select Digital IO 2040 from the IO Driver list Select WORD from the IO Size list Enter the IO Physical Address The address is XYZ Xis the module address 21 26 Y is the type of I O 1 Count 2 Frequency Z is the module I O number 1 2 8 Click OK poy My ee ib PPC 2040 Digital I O Addressing Example To create a variable named DigIn_22 that reads the state of the 2204 input on a PPC 2040 module with its rotary address switch set to 21 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Yariable 196 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks Analog Out 205x The Analog Out
195. lect the element type from the toolbar 2 Click and hold on the right side of the left power rail directly across from the logical input of the Function Block Handles appear on the left power rail to indicate that you have selected the correct part of the rail 3 Drag the line to the connecting point on the Function Block 4 Release the mouse button A rung appears with the element on it as shown in Figure 8 10 on page 92 Watlow Anafaze 91 Chapter 8 Ladder Diagrams LogicPro User s Guide j Figure 8 9 Inserting an Input Element on a Function Block saa eL pp yyZ yy44 y II co aD Figure 8 10 Element Inserted Between Left Power Rail and Second Input Bit Connecting New Elements To connect a new element such as a coil from the second or lower logical output bit to the right power rail 1 2 92 Select a coil element type from the toolbar Click and hold on the Logical Output Bit in the Function Block Drag the line at least past the grid that contains the right side of the Function Block See Figure 8 11 on page 93 Release the mouse button A rung appears with the new element on it See Figure 8 12 on page 93 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide NOTE Chapter 8 Ladder Diagrams Figure 8 11 Connecting an Element to a Func tion Block s Output AC PLD GI i EL
196. ler is attached such as through Com1 serial port e Variables a list of all symbolically named Variables in the control Program The list contains Watlow Anafaze 261 Chapter 17 Dynamic Data Exchange LogicPro User s Guide The symbolic name e Type of Variable BOOL 0 INT 1 REAL 2 e A Program index The Variable names are the same as the item names used by other application Programs to make requests through the DDE Server NOTE Do not modify this file LogicPro will make any corrections as they are needed For more detailed information refer to Chapter 6 Variables Topics The following commands for topics are accessed through the Topic menu New Topic e Open Topic Close Topic Modify Topic Delete Topic Creating A New Topic Before any communication can begin between the LogicPro DDE Server and client applications you need to create a topic To create a New topic 1 Select the Topic menu 2 Select New Topic The New DDE Topic dialog box appears 3 Enter a topic name in the Topic field 4 Enter the name of the FPR file If you are not sure of the file s name or location click Search to open a stan dard Windows search dialog to locate the file 5 Click OK 262 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Open a Topic Close a Topic Modify a Topic Delete a Topic Doc 28002 00 Rev 3 00 Chapter 17 Dynamic Data Exchange To Open
197. long as the enable bit is True The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges ENO is disabled C reverts to its last valid value whenever ENO is disabled The Subtract SUB function block shown in Figure 10 15 produces the difference between two values SUB calculates the difference between one value A and another value B and places the result in another Variable C when the enable bit EN is True The values of A and B can be preset to a constant or assigned a symbolic name which allows their value to change dynamically within the program SUB EN 4 ENO A C B Figure 10 15 Subtract Function Block EN is the Subtract enable bit A True condition of this bit causes the value of B to be subtracted from the value of A and the result stored in C In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder program the value Watlow Anafaze 131 Chapter 10 Function Blocks Outputs Multiply MULT 132 LogicPro User s Guide of EN is always True In FBD all inputs must be connected to
198. lues this Variable can assume is from 3 4x10 to 3 4x10 8 If this Variable is assigned a value out of these ranges unpredictable results will occur Outputs ENO is the Real Subtract enable out bit This bit is enabled and passes power when the enable bit is True as long as the value of RC does not go out of range RC is the subtract result value RC contains the difference between RA and RB as long as the enable bit is True The range of values this Variable can assume is from 3 4x10 5 to 3 4x10 5 If this Variable is assigned a value out of these ranges ENO is disabled RC reverts to its last valid value whenever ENO is disabled 150 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 10 Function Blocks Real Multiply RMUL Inputs Outputs Doc 28002 00 Rev 3 00 The Real Multiply RMUL function block shown in Figure 10 31 produces the product of two values RMUL calculates the product between one value RA and another value RB and places the result in another Variable RC when the enable bit EN is True The values of RA and RB can be preset to a constant or assigned a Variable name which allows their value to change dynamically within the program Figure 10 31 Real Multiply Function Block EN is the Real Multiply enable bit A True condition of this bit causes the values of RA and RB to be multiplied and the result stored in RC In a program using Ladder logic the value of EN
199. mming language elements and constructs necessary for the intended signal processing needed to control a machine or process by a programmable controller system One or more Programs can be contained within a Resource Within each Program there may be any number including zero of steps actions relay elements or function blocks While you can write multiple Programs for each controller only one Program can actually run on the Resource at any time Creating a New Program 1 Select the File menu 2 Select New 3 Select Program The New Program dialog box ap pears as shown in Figure 5 1 on page 42 Doc 28002 00 Rev 3 00 Watlow Anafaze 41 Chapter 5 Programs New Program LogicPro User s Guide Existing Programs Figure 5 1 New Program Dialog Box Enter the name for the new Program Since the Program name is used as the name of DOS data files the name must conform to DOS standards for file names The name cannot be the same as the Resource name See Appendix A for details on naming conventions Click OK Opening a Program To open an existing Program l 2 42 Select the File menu Select Open Select Program The Open Program dialog box appears as shown in Figure 5 2 on page 43 Select the Program you want to open from the list Click OK Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 5 Programs Open Program FI Figure 5 2 Open Program Di
200. more parallel branches are needed as shown in Figure 8 15 on page 95 1 From the tool bar select the element type to add 2 Click and drag from the left side to the right side of the element you want to parallel 3 Release the mouse button with the pointer in the grid cell to the right of the cell in which the element to parallel is located The finished diagram is shown in Figure 8 16 on page 95 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev 3 00 Chapter 8 Ladder Diagrams TG Click Release X w Drag Figure 8 15 Adding Another Branch 0001 NOTE Figure 8 16 Branch Added To create a new parallel branch from the left power rail as shown in Figure 8 17 on page 96 1 From the toolbar select the element type you want to add 2 Start dragging on the right side of the left power rail and below the rung you to which you want to attach the new branch 3 End dragging close to the rung The finished diagram is shown in Figure 8 18 on page 96 Ensure that the handle does not appear on the rail below if there is one This is to ensure that you want to insert a new rung Watlow Anafaze 95 Chapter 8 Ladder Diagrams LogicPro User s Guide j T H Figure 8 17 Creating a New Parallel Branch from the Left Power Rail Figure 8 18 After Creating a New Parallel Branch from the Left Power Rail
201. mpiler selected for the particular resource Performs the same function as Compile for Execution above but also adds the OBJ file to the UDFB library for this resource library before you can use it in a program type You must add a UDFB to the Compile for Simulation Compiles and error checks the UDFB in the active window for simulation using the Borland C compiler Build Simulation Lib Performs the same function as Compile for Simulation above but also adds the 0B file to the UDFB library for this resource library before you can use it in a program type You must add a UDFB to the Execution Menu This menu contains many useful tools that you will need to compile link download stop and start a project See Table 2 6 for a detailed list and explanation of the items on the Execution menu Table 2 6 The Execution Menu Menu Option Description Build All and Run Compiles downloads and starts the program Download and Run Downloads and starts a previously compiled program Start Executable Starts a previously downloaded pro gram Terminate Stops the currently running program Simulation Menu This menu gives you control over all aspects of running a simulation Refer to Table 2 7 on page 14 Doc 28002 00 Rev 3 00 Watlow Anafaze Chapter 2 LogicPro Workplace Options Menu LogicPro User s Guide Table
202. munication protocol designed to allow Windows applications to send and receive data and instructions to other Windows applications Dynamic Data Exchange takes place between a client application and a server application The client initiates the exchange by establishing a conversation with the server so that it can send transactions requests for data or service to the server The server responds by providing the requested data or services A server can have many clients at the same time and a client can request data from multiple servers Applications can be both client and server The client terminates a conversation when it no longer needs the server s data or services How to Access a Remote Item A DDE Server uses a three level name to identify the data unit that the server can exchange Server name is a string that a server application responds to when a client attempts to establish a conversation with a server A client must specify this service name to be able to establish the conversation Although a server may respond to many server names most servers respond to only one In the case of LogicPro the server name is LP DDE Doc 28002 00 Rev 3 00 Watlow Anafaze 259 Chapter 17 Dynamic Data Exchange Installation LogicPro User s Guide Topic name is a string that identifies a logical data context For LogicPro this is a unique name that identifies the resource The actual resource is defined in the
203. n Doc 28002 00 Rev 3 00 1 Select the File menu 2 Select Close 3 Select Simulation Watlow Anafaze 233 Chapter 14 Simulation LogicPro User s Guide 234 Watlow Anafaze Doc 28002 00 Rev 3 00 Downloading and Monitoring Executable LogicPro converts your control logic program into a binary executable program This program is in the form of a DOS exe This file is converted to a hex file and is then downloaded to the controller and run Downloading to a controller through an RS 232 Port To download the executable program generated by LogicPro follow this simple procedure 1 Ifdownloading to a PPC 2000 controller a Set the control mode for each channel to Off b Seteachalarm to Disabled 2 Ifdownloading to a CPC400 controller note any alarms Once downloading commences all alarms are automati cally acknowledged A CAUTION Input readings during downloads are not accurate and may vary widely due to allocation of CPU re sources for downloading Stopping closed loop control and disabling alarms ensures that outputs remain off during download 3 Connect the computer to the controller by a standard RS 232C connection through the COM1 or COMZ serial ports Doc 28002 00 Rev 3 00 Watlow Anafaze 235 Chapter 15 Downloading amp Monitoring 236 NOTE A CAUTION LogicPro User s Guide The port is identified when setting up a resource The port must be set correctly before bu
204. n path of the compiler linker and library executables along with the Include and Library paths Installation sets up the compiler paths Under most circumstances the default settings are adequate If the paths need to be modified use the following procedure to define the compiler paths 1 Select the Options menu 2 Select Resource Compiler Selection This will cause the Resource Compiler Selection dialog box to open as shown in Figure 13 1 Resource Compile Seiectien Resource Plattarm s PPC 2000 Aja EL L48 A r Figure 13 1 Simulation Compiler Doc 28002 00 Rev 3 00 Watlow Anafaze 221 Chapter 13 Understanding Compilers LogicPro User s Guide 3 Click Setup This causes the Compiler Paths dialog box to open as shown in Figure 13 2 Lompiler Paths i a E Bad wee LE S E SE a2 284 29 GS ET Figure 13 2 Compiler Paths 4 Click the Open button S or the Copy Field button E5 to the right of the Compiler Linker or Library field you want to configure This will cause the corresponding Select Compiler dialog box to open See Figure 13 3 Select Compiles Ea a ak 8 Figure 13 3 Select Borland Compiler 222 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 13 Understanding Compilers 5 Select a new path for the executable from the Files list box 6 Repeat from Step 4 as necessary for the Linker and Library 7 You may enter values i
205. n of this bit triggers the elapsed time to start incrementing in thousandths of a second until the elapsed time equals the preset time In a program using Ladder logic the value of INP is determined by the Boolean evaluation of elements placed between the left power rail and INP in the function block In FBD programs the value of INP is determined by the Variable connected to INP If no contacts are placed on the rung before INP the value of INP is always True PT is the Timer Pulse preset time In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 1 to 32 767 for INT type Variables and 1 to 2 147 483 647 for LONG type Variables thousandths of a second If this Variable is assigned a value out of these ranges unpredictable results will occur Q is the Timer Pulse output bit This bit is enabled and passes power when the elapsed time is less than the preset time and is still incrementing ET is the Timer Pulse elapsed time In ladder logic this Variable may be assigned a symbolic name in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this output in the Variable Assignment dialog box The value of this Variable increments in thousandths of a second when triggered by a True condition of the ena
206. n on Function Block Dia grams and Function Blocks is available in Chap ter 9 and Chapter 10 respectively Connecting Function Blocks to Other Ladder Elements NOTE 90 You can add Ladder elements such as contacts and coils on both sides of a Function Block Figure 8 7 on page 91 shows a Ladder diagram before additional elements are connected to the Function Block while Figure 8 8 on page 91 shows the same Ladder diagram with the elements now included To connect Function Blocks to other Ladder elements 1 Select the element type you want to add from the toolbar 2 Position the pointer on the Ladder diagram where you want to add the element then click Coils cannot be used on the input side of a Func tion Block Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 8 Ladder Diagrams gae Miga Figure 8 7 Ladder Diagram Before Elements Are Added to Function Block Figure 8 8 Ladder Diagram After Elements Are Added to Function Block Function Blocks with More Than One Input and Output Bit Doc 28002 00 Rev 3 00 Some Function Blocks have more than one input and output logical bit For example the CTUD Counter Up Down Function Block has four logic input bits CU CD R LD and two logical bits QU and QD on the output side as shown in Figure 8 9 on page 92 To insert a new element between the left power rail and the second or lower logical input 1 Se
207. n the tool bar To deselect an element click on another element or a blank space in the SFC editor window Right clicking while using any other tool reacti vates the Selector tool You can cut copy and paste SFC Actions into other SFC programs or Actions To select an Action use the selector tool to get the handles When pasting an Action you are prompted for a unique name for the Action if pasting would cause ambiguity All programs require an origin Step to begin the process program Each SFC program can have one or two Origin Steps Origin Step is initially active when the program is run The Origin Step tool allows you to insert an origin Step into the program window Insert your Origin Step by selecting the Origin Step tool and clicking where you want the Step positioned Steps are related Actions such as filling a tank counting parts or waiting for a delay that are carried out until a Transition condition is met When scanning the active states Steps are equivalent to the logic associated with the states Steps are either active or inactive Actions associated with a Step are only active when the Step is active At a given moment the state of the program is defined by its active Steps and the values of their inputs and output variables Watlow Anafaze 73 Chapter 7 Sequential Function Charts LogicPro User s Guide You can insert Steps into your SFCs with the Step tool Select the Step tool from the toolb
208. nce To perform a FBD On line cross reference while in an FBD window 1 Select the Tools menu 2 Select Cross Reference or Click the Cross Reference button on the toolbar The standard pointer changes into a modified pointer as shown in Figure 16 1 on page 250 3 Click on a Variable for which you want to view a cross reference The Cross Reference dialog box appears This dialog lists all the instances of that Variable and the location of each instance 4 Ifyou click outside all elements the Cross Reference dialog box appears and lists all the Variables present for the entire FBD window and their location in the Program 5 You can minimize and move the Cross Reference dialog box so that you can view and edit portions of the Program If you change the Program or Variables the Cross Reference dialog box data is not updated until you close and then reopen the dialog box 6 Click Print to print the on line cross reference listing 7 Click OK to close the dialog box Cross Reference Output Doc 28002 00 Rev 3 00 The cross reference output is sorted by type in the following order 1 Project Variables 2 Resource Variables 3 Program Variables Within each of these categories the Variables are sorted in alphabetical order If Comments for the Variable exist they are displayed on the line below the Variable Code The last information displayed is the locations of the Variables Watlow Anafaze 251
209. nd analog output values on a PPC 2030 Encoder In Ana log Out module Digital IO 2040 Digital input and output states and count and frequency input values on a PPC 2040 Digital I O module Analog_Out_205x Digital_Out_206x Analog output values on any PPC 205x Analog Out module Digital output states on any PPC 206x Digital Out module Digital_In_207x Digital input states on any PPC 207x Digital In module Setpoint Soft_Input The setpoint of any of the closed loop control channels The value of any of the Soft Inputs Typically used for a logic program to output a value to the input of a closed loop control channel Soft_Bool The value of any Soft Bool register Typically used to exchange information between a logic program and an HMI program or operator inter face panel Soft_Int Database The value of any Soft Int register Typically used to exchange information between a logic pro gram and an HMI program or operator interface panel The value of any closed loop control parameter that is not supported by another IO Driver IO Physical Addresses The IO Physical Address syntax depends on the IO Driver The Custom Interfacing chapter of the PPC 2000 User s 188 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks Guide lists the addresses for each I O point AnaWin includes the IO Physical Address in the names that appear in
210. nd setting If you want to set the Heat Proportion Band for channel 9 the address will include the database offset 9 Four types of parameters are accessed using the Database I O driver Analog and Encoder Input Channel Digital I O and Global The following sections describe how to determine the database offsets to be used to access each of these types of parameters Channel Parameters The database offsets associated with channel parameters are the channel numbers Refer to the PPC 2000 User s Guide for a complete description of channel parameters and a list of channel parameter numbers Analog Count and Frequency Input Parameters The database offsets associated with analog count and frequency inputs are based on the order of the inputs in the database Refer to the Custom Interfacing chapter of the PPC 2000 User s Guide for a complete description of input parameters and a list of input parameter numbers Digital I O Parameters The database offsets associated with digital inputs and outputs are based on the order of the digital I O in the database Refer to the Custom Interfacing chapter of the PPC 2000 User s Guide for a complete description of digital I O parameters and a list of digital I O parameter numbers Global Parameters Global parameter offsets are dependent on the global parameter Refer to the Custom Interfacing chapter of the PPC 2000 User s Guide for a complete list of global parameter numbers and their correspond
211. nnot use resources that have been created under other Projects with your New Project Opening a Project Doc 28002 00 Rev 3 00 To open an existing Project 1 Select the File menu 2 Select Open 3 Select Project The Open Project dialog box appears as shown in Figure 3 3 Figure 3 3 Open Project Dialog Box Watlow Anafaze 27 Chapter 3 Projects LogicPro User s Guide 4 Click on a Project in the box 5 Click OK LogicPro automatically prompts you to open a Resource and then a Program if any exist or to create them See Chapter 5 Programs 6 Ifyou cannot find the Project you are looking for a Select Build List from the dialog box The Rebuild Project List dialog box appears as shown in Figure 3 4 b Enter a drive in the Start Drive and End Drive fields LogicPro searches the drive s entered and produces a list of all available projects Rebuild Project List Lx Du Start Drive End Drive Figure 3 4 Rebuild Project List Dialog Box Copying Projects 28 Projects Resources and Programs are stored in files and directories that can be copied to a floppy or another drive location However the structure between these must be maintained for LogicPro to read files correctly Each Project has its own directory with the same name as the project Each Resource also has its own directory with the same name as the Resource it is located in the associated Project directory Programs
212. nt the output bit Q is enabled and remains enabled until the function block is reset by a True condition of the reset bit R While the reset bit is True the current value resets and remains at zero CTU cuy 9 R CV PV Figure 10 1 Counter Up Function Block CU is the Counter Up enable bit As long as the reset bit is False each False to True transition of this bit increments the current value until the current value equals the preset value In a program using Ladder logic the value of CU is determined by the Boolean evaluation of elements placed between the left power rail and CU in the function block In FBD programs the value of CU is determined by the Variable connected to CU If no contacts are placed on the rung before CU the value of CU is always True but a transition never occurs R is the counter up reset bit When this bit is True the current value is set to zero and the output bit is disabled The value of R is determined by the Boolean evaluation of elements placed between the left power rail and R in the function block If no connection is made between the left power rail and R the value of R is always False PV is the counter up preset value In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 1 to 32 767 f
213. nt and debug your process program NOTE For more information on Cross Reference feature consult Chapter 16 Cross Referencing Viewing the Grid You can enable the Grid menu option to display a grid of dots in the program window This grid is helpful when connecting or operating on program elements To use the Grid feature 1 Select View 2 Select Grid This enables the Grid command Doc 28002 00 Rev 3 00 Watlow Anafaze 87 Chapter 8 Ladder Diagrams 88 LogicPro User s Guide Creating and Editing Ladder Diagrams Inserting Rungs NOTE Inserting Elements LogicPro allows you to use the many editing features available in Windows To insert a rung into a Ladder program between two existing rungs 1 From the toolbar select the new element type you want to add 2 Click Anywhere in the program window to create the first rung or Between two existing rungs or Above the first rung or Below the last rung The program is redrawn with the element on a new rung The rung number in front of the left power rail is updated In rungs with multiple branches such as the one in Figure 8 3 a new rung cannot be inserted be tween these branches ma Figure 8 3 Rungs with Multiple Branches To insert an element on an existing rung 1 Select the element type you want to add from the toolbar 2 Click on the rung The new element is inserted and the adjacent elements adjust t
214. nt of integers in the stack 1s equal to zero A True condition of the clear bit CLR clears the stack of any integer values and resets the count Variable to zero thus causing the empty bit to be True The output Variable retains its last value when the stack is cleared LD 4 UNLD FUL CLR EMP INP CNT SIZE OUTP Figure 10 18 First In First Out Function Block Watlow Anafaze 135 Chapter 10 Function Blocks LogicPro User s Guide Inputs LD is the FIFO load bit As long as the clear bit is False each False to True transition of this bit loads the input Variable value into the stack until the count value equals the size value In a program using Ladder logic the value of LD is determined by the Boolean evaluation of elements placed between the left power rail and LD in the function block In FBD programs the value of LD is determined by the Variable connected to LD If no contacts are placed on the rung before LD the value of LD is always True but a transition never occurs This bit has the lowest evaluation priority of the input bits in this function block UNLD is the FIFO unload bit As long as the clear bit is False and the count value is not zero each False to True transition of this bit unloads the oldest integer in the stack to the output Variable In a Ladder Diagram program the value of UNLD is determined by the Boolean evaluation of elements placed between the left power rail and UNLD in the function bloc
215. ntained in the bracket all rungs between the IL and the ILC markers as dictated by the result of the logic to the left of the IL block Therefore if the EN bit of the IL block is False there is no execution of the bracketed logic however if the EN bit of the IL block is True the bracketed logic executes The IL ILC bracket is local to one Ladder and so does not affect others which may be running simultaneously in a parent SFC symbol1zIL The InterLock function block marks the beginning of a group of Ladder logic diagram operations that are bracketed for special purpose EN L Q Figure 10 43 The InterLock Function Block EN is the InterLock enable bit A True condition of this bit activates the IL ILC bracket and causes the special effects listed in the previous section Q is the InterLock output bit This bit reflects the state of the enable bit EN It does not affect the rest of the program InterLock Clear ILC symbol1 ILC The ILC function block simply marks the end of the Ladder logic segment that is affected by the Interlock function Figure 10 44 The InterLock Clear Function Block Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Input Output Chapter 10 Function Blocks EN is the InterLock Clear enable bit In this Function Block it has no effect on the program The ILC FB closes the IL bracket whenever the preceding IL FB is active Q is the InterLock Clear out
216. nto the Include Path and Library Path fields by typing them directly into the dialog box If the same path exists for the Compiler Linker and Library you can update all of the path fields by clicking the Copy Field button Doc 28002 00 Rev 3 00 Watlow Anafaze 223 Chapter 13 Understanding Compilers LogicPro User s Guide 224 Watlow Anafaze Doc 28002 00 Rev 3 00 Simulation LogicPro allows you to simulate your control logic program without the need for a controller After you have completed writing your application program and before you load to a target resource Simulation allows you to test it for problems This is a simple process and does not require you to make changes to any of the I O assignments resource definitions or resource setups Building a Simulation causes LogicPro to generate and compile code to create a Windows Dynamic Link Library DLL Then when you run the Simulation LogicPro communicates with this DLL instead of your target resource This is a very powerful tool for testing debugging and optimizing the performance of your program The advantages of using LogicPro simulation are e Same logic code Noro While using the Simulation mode LogicPro allows you to accelerate the time base by adjusting the Timer Ticks setting You can control the number of times your logic executes by adjusting the number of scans setting Finally you can change individual variable settings This gives you
217. o selecting it and clicking the OK button 5 Click OK A message dialog box appears to confirm deletion of the Project and all its Resources and Programs If you click OK you remove the Project names from the list and delete all associated Resource and Program files There is no way to recover this information Be certain you want to delete these files before you click OK 6 Click OK to confirm the deletion Cancel to abort the deletion Watlow Anafaze 31 Chapter 3 Projects 32 Delete Propect CARITCHEN Watlow Anafaze LogicPro User s Guide Doc 28002 00 Rev 3 00 Resources Resources are the individual controllers that execute the logic you created in a LogicPro Program Creating a Resource To create a Resource 1 Select the File menu 2 Select New 3 Select Resource The New Resource dialog box appears as shown in Figure 4 1 Her bermea Figure 4 1 New Resource Dialog Box 4 Select PPC 2000 or CPC400 from the Target Environment list Doc 28002 00 Rev 3 00 Watlow Anafaze 33 Chapter 4 Resources LogicPro User s Guide 5 Enter a Name for the Resource you want to define LogicPro saves this Resource as a database in the Project subdirectory 6 Click OK to define the Resource The Attributes dialog box appears or Click Cancel to exit the dialog box PPC 2000 Attributes Figure 4 2 PPC 2000 Attributes Dialog Box PPC 2000 Attributes Th
218. o the procedure in Adding a Re source Program Variable on page 56 Watlow Anafaze 59 Chapter 6 Variables 60 LogicPro User s Guide Deleting Resource Program Variables NOTE NOTE To delete a single Resource Program Variable 1 Select the Variable you want to delete in the Resource Program Variables dialog box 2 Click Delete The Verify dialog box appears You are prompted to confirm deletion only if the Options Variable Confirm Deletion choice is se lected 3 Click Yes to delete the Variable Click No to cancel the deletion To delete multiple Variables simultaneously 1 Select the first Variable you want to delete in the Resource Program Variables dialog box 2 To select another non sequential Variable a Press and hold lt CTRL gt b Click the additional Variable you want to delete Only the first selection and the additional Vari ables are highlighted To select a sequence of Variables a Press and hold lt SHIFT gt b Click on the last of the Variables in the sequence that you want to delete This action highlights the first selection the last selection and all of the Variables in between the two 3 Click Delete The Verify dialog box appears You are prompted to confirm deletion only if the Options Variable Confirm Deletion choice is selected 4 Click Yes to delete the Variables Click No to cancel the deletion Watlow Anafaze Doc 28002 00 Rev
219. ock Scan Rates The frequency at which LogicPro Programs execute one complete cycle Scanning The time it takes for a LogicPro Program to complete ly execute once Watlow Anafaze 277 Glossary Select The act of picking or highlighting which object you want to manipulate in a GUI environment Selection A highlighted or picked object See Select Sequential Function Chart Graphic way to organize Program using steps to illus trate specific portions of the process actions to detail what happens inside each step and transitions to con nect the steps into a sequential or parallel flow Serial A method of transmitting data one bit at a time This can be contrasted with parallel which transmits sev eral bits simultaneously Serial Port An interface port that supports transmission of 1 bit at atime Most PCs are outfitted with serial ports for con necting most peripheral devices a mouse or a mo dem These ports conform to RS 232C or RS 422 standards Serial Process A process in which steps happen in a sequence of one step at a time SFC An acronym for Sequential Function Charts Simulation LogicPro feature which enables the user to verify the operation of a Program before loading and running it on the hardware controller Simulation Library Similar to an Execution Library except that there is no need for an I O Simultaneous Transition A component of SFC Programs that links and
220. of channel 19 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Variable xi Setpoint_19 premene X vi Input _ Output 10 Physical Address bo Jui With IO Size of Initial Value peoa Retained Data Encoder Analog 20 Processor 2010 Comment Digital Out 206x 200 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks Soft Input A logic program can generate an analog input to a closed loop control channel To do so output a value to one of the 50 Soft Input registers and select that register as the PV Source for the channel To associate a variable with a soft input 1 Open the Add Program Resource Variable dialog box Enter a unique variable Name Select INT from the Type list Select Output by clicking the check box Select Soft Input from the IO Driver list Select WORD from the IO Size list In the IO Physical Address field enter the Soft Input num ber 1 50 8 Click OK 23 dw Qu sb CO bo Soft Input Addressing Example To create a variable named PV From Logic 1 that sets the value of the first Soft Input set the options in the Add Program Resource Variable dialog box as illustrated below Doc 28002 00 Rev 3 00 Watlow Anafaze 201 Chapter 12 Function Blocks LogicPro User s Guide Soft_Bool A Soft Bool can be used in logic programs by creating a
221. of the pull down menus which can be accessed Doc 28002 00 Rev 3 00 Watlow Anafaze 275 Glossary O Object In a GUI environment this is an element that you can select and manipulate Operators A symbol used in an expression to represent an action For example in the expression z 7 the is an op 6699 erator representing addition while the z and 7 are operands Origin Step Initial step in a process control Program Output That which comes forth from any computer operation This may take the form of data graphics and audio in formation Output Variable A Variable used for outputting data P Parallel A method of transmitting several bits of data simulta neously This can be contrasted with serial which transmits one bit at a time Parallel Port An interface port that supports data transmission of several bits simultaneously The most common device using this connection is a printer or external removable disc drive The parallel port is a twenty five DB 25 pin connector Parameter A value that in programming is passed to a routine Sometimes known as an argument 276 Watlow Anafaze LogicPro User s Guide Path The location of a file in relationship to the various di rectories and subdirectories that tie it to the root direc tory Platform The base hardware and software on which a system is built For instance an Intel Pentium II Pro processor running Win
222. ofthe actions of a linker The result of this process is the creation of an executable file from these otherwise unconnected modules Logic See Boolean Algebra LogicPro IEC 1131 compliant Microsoft Windows based graphical programming environment allowing devel opers to create debug and manage Real Time process control Programs written in traditional programmable controller languages Loop Back Transition which passes process control from one step back to a preceding step Glossary Message Box A small box that appears on the screen to advise you of a problem or potentially dangerous operation MIN SCAN Minimum Value Variable Modem An acronym for Modulator Demodulator A device that allows you to interface your computer with a non ISDN telephone line Since conventional phone lines transmit analog data the MODEM must translate the computers digital data stream into analog data for transmission When data returns to your computer from the phone line the MODEM translates the analog signal back into a digital signal Monitoring A feature in LogicPro that allows you to observe the status of a Program while it executes MOVE A function block that moves data from one location to another Multiple Output Coil Branches See Branch N Normal Coil See Coil Normal M NT See Windows NT MAX SCAN Maximum Value Variable Menu Bar Located near the top of the screen and displays the names
223. on Blocks must have unique names and their I O must be assigned I O may be constants variables or rung connections Inputs and outputs may be integer or real or Boolean To assign symbolic Variable names or preset values to a function block 1 2 Select the Selector tool Double click on an existing function block The Assign Function Block Symbolic Input Output dialog box for that function block appears as shown in Figure 8 25 on page 103 The Input and Output to which you can assign Variables are listed in the dialog box Enter a unique name in the FB Name field If necessary click List to see a list of Function Block names in the current program Select the value in the Symbolic Input or Symbolic Output field to which you want to assign a value Enter a numeric value or variable name in the field at the bottom of the dialog box click the Search button and double click on a variable name in the displayed list Repeat steps 4 and 5 until all Symbolic I O are assigned Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 8 Ladder Diagrams Assign Function Block Symbolic Input Output Lx Symbolic Input Symbolic Output Symbolic Name PT Type LONG or INT Figure 8 25 Assign Function Block Symbolic Input Output Dialog Box 7 Click OK The symbolic names or values appear on the function block in a Ladder diagram program as shown in Figure 8 26 UpDown1 0001 Count
224. on the screen where you want to insert the function block The function block appears in that location Counter Standard Vendor Provided User Detined Figure 9 1 Function Block Dialog Box 108 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 9 Function Block Diagrams Figure 9 2 shows two function blocks placed in the Program window CTU GU Q CTU R CV CU 9 Q PV R CV PV Figure 9 2 Placed Function Blocks Inserting Variable Elements To insert Variable elements 1 Select the Variable tool 2 Move the pointer to the location at which you want to place the new Variable element and click the mouse button NOTE While function block outputs can be left open without any Variables assigned to it ALL IN PUTS must have a Variable assigned to them Connecting Inputs and Outputs Connections are made using the Straight Connections and Inverted Connections tools To make a new connection 1 Select the type of connection you wish to make by clicking on the corresponding button Straight Or Inverted HI 2 Place your pointer over one of the elements you wish to connect click and drag over to the element you wish to connect to and release the mouse button See Figure 9 3 on page 110 Doc 28002 00 Rev 3 00 Watlow Anafaze 109 Chapter 9 Function Block Diagrams LogicPro User s Guide Lip Dinan t our Up IL e UO CU Q4 uu cunn eo a Ca t
225. one of these tools click it on the toolbar or select it from the Tools menu Table 8 1 contains a list of the available tools Table 8 1 Ladder Diagrams Toolbar This Tool Performs This Function Selector Normally Open Contact Normally Closed Contact Off to On Transitional Contact Positive On to Off Transitional Contact Negative Normal Coil Latched Coil Set Unlatched Coil Reset Function Block Comments Hoes Sele eel amp Cross Reference Ts Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Selector A Chapter 8 Ladder Diagrams Use the Selector tool to select an element within a Ladder program Once selected you can move edit delete or assign Variable names to it To use the Selector 1 Select the Selector tool Select any element in the program by clicking once on it This will cause handles to appear showing that it is selected Clicking twice on it causes the Variables dialog box to appear Figure 8 1 illustrates an element without handles 4r Figure 8 1 Element without Handles Figure 8 2 shows a selected element with handles 3c Figure 8 2 Selected Element with Handles Normally Open Contact HE Doc 28002 00 Rev 3 00 The No Contact tool enables you to insert normally open contacts into the program window During a single evaluation of the Ladder diagram if the Variable associat
226. or INT type Variables and 1 to 2 147 483 647 for LONG type Variables If this Variable is assigned a value out of these ranges unpredictable results will occur Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Outputs Chapter 10 Function Blocks Q is the Counter Up output bit This bit is enabled and passes power when the current value is equal to the preset value CV is the Counter Up current value In Ladder logic assign this output Variable a symbolic name in the Assign Function Block Symbolic Input Output dialog box shown in Figure 10 2 In FBD assign a variable to this output in the Variable Assignment dialog box The value of this Variable increments by one every time a False to True transition of the counter up enable bit occurs until the current value equals the preset value The current value retains its value until the reset bit is True Assign Function Block Symbole Input Output Symbolic Input Symbolic Output v le FB Name Timer ui e Symbolic Name PT T LONG or INT Figure 10 2 Assign Function Block Symbolic Input Output Dialog Box Counter Down CTD Doc 28002 00 Rev 3 00 The Counter Down function block shown in Figure 10 3 on page 118 enables an output after a preset number of transitions from False to True occur CTD decrements the integer current value CV for every False to True transition of the counter down enable bit CD The current value continues to
227. oubleshooting You can use User Defined Functions Blocks in the same manner as standard Function Blocks once UDFBs are defined e Blocks are coded Blocks are added to the library Once a UDFB is defined in the resource it is valid and usable in all Programs Watlow Anafaze 167 Chapter 11 User Defined Function Blocks LogicPro User s Guide When a UDFB is defined LogicPro generates two associated files A header file e AC code file The header file contains the definition of a structure for that UDEB and function prototypes The C file contains four functions Main Program called during evaluation of the user Program and performs the task of the UDFB Initialization called only once when the user Program starts to run Reset called only when the UDFB is in an unstored action and that action becomes inactive Exit called once if the user Program terminates In most cases you will not use the initialization exit and reset functions therefore you will not need to add code to those functions Defining a New or Editing an Existing UDFB 168 In order to create a new UDFB the user must first open or create a Project and a Resource To create a new UDFB 1 Select the File menu 2 Select New 3 Select User Defined Function Block The New UDFB dialog box appears as shown in Figure 11 1 on page 169 4 Enter the complete name ofthe UDFB in the Long field This is the name of the
228. ow Anafaze Doc 28002 00 Rev 3 00 List of Tables 1 Introduction 0 0 0 ce ee 1 Table 1 1 Chapter Descriptions 0000000 e eee eee 2 Table 1 2 Conventions Used i i 4 2 LogicPro Workplace slrelee 5 Table 2 1 The File Menu leese RR 7 Table 2 2 The Edit Menu 0 0 0000 ccc RA 9 Table 2 3 The View Menu lle RR 11 Table 2 4 The Tools Menu seee eee 12 Table 2 5 The UDFB Menu 0 000000 ccc RR RR RR ee 13 Table 2 6 The Execution Menu leen 13 Table 2 7 The Simulation Menu leen 14 Table 2 8 The Options Menu 0 00 e eee eese 14 Table 2 9 The Windows Menu 00000 cee RR 16 Table 2 10 Levels of Help eee 17 Table 2 11 Help Menu Options iliis 17 Table 2 12 Toolbar Definitions sen 18 Table 2 13 The SFC Toolbar 00 00 0000008 20 Table 2 14 The Ladder Toolbar eene 21 Table 2 15 The FBD Toolbar 0 000 000 cece eee 21 3 Projects viel sd dau EE Rue TEM Romae AR 25 4 RESOUTCES 0 0a SG GG REE PRAY EN ented eee 33 5 Programs ieiet iei aaan e a ia PANA as 41 6 Variables 261i vid oe GG x P dove ended 49 Table 6 1 File Format Specification of Import Export 68 Table 6 2 Selected Explanations of the Example Import Export File 69 7 Sequential Function Charts 7
229. ows you to manipulate function blocks in much the same way as in the Ladder programming language As with the Ladder language FBD allows you to simply create and edit complex programs using a powerful set of tools The biggest difference between the Ladder and FBD languages is their focus While Ladder allows you to create complex programs that include function blocks FBD is simpler to use for applications such as creating process programs where inputs tend to be something other than discrete devices such as limit switches and proximity sensors FBD allows you to map out what comes in and where it s coming from without being restricted by the rigid structure of a discrete oriented Ladder diagram As with a Ladder program an FBD program can be used either inside an action of an SFC program or as a stand alone program FBD Toolbar Table 9 1 shows the SFC tools with a brief description of each tool s function The following sections describe the tools and the Actions they produce in greater detail Doc 28002 00 Rev 3 00 Watlow Anafaze 105 Chapter 9 Function Block Diagrams LogicPro User s Guide Table 9 1 FBD Toolbar Functions Tool Description Selector Straight Connector Inverted Connector Variables Function Block Cross Reference SS a GB el Selector N The Selector tool allows you to choose one or more element of your program for editing Clicking on this button mak
230. ple Rungs by holding down the left mouse button and dragging the dotted box around adjacent Rung numbers 98 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Copying Rungs Pasting Rungs Doc 28002 00 Rev 3 00 Chapter 8 Ladder Diagrams 4 Click Cut on the Standard toolbar Select Edit then Cut Press lt Ctrl gt X The Selected Rung s disappear s from the screen See Pasting Rungs below for directions on pasting the elements elsewhere To copy a rung 1 Select the Selector tool 2 Position the pointer to the left of the Left Power Rail each Rung has its own unique number 3 Click on the number of the Rung number that you want to Copy You may select multiple Rungs by holding down the left mouse button and dragging the dotted box around adjacent Rungs numbers 4 Select Copy on the Standard toolbar Select Edit then Copy Press lt Ctrl gt lt C gt The Selected Rung s are copied and available for pasting see Pasting Rungs for directions on pasting the elements elsewhere To paste a rung 1 Click Paste on the Standard toolbar Select Edit then Paste Press lt Ctrl gt lt P gt 2 The Selector pointer changes to indicate the next click will paste a rung 3 Position the pointer where you want to Paste the Rung 4 Click LogicPro inserts the Rung s at this point You can continue to Paste the same Rung s until you overwrite
231. pplied again So while it might seem strange that two runs first being dependent upon input from one the last value that was passed to two from one is used instead of new data Figure 9 5 Execution Order in FBD Cutting Copying Pasting and Deleting 112 When cutting or copying a function block it is necessary to make sure that all the function block s input and output Variables are also selected You can tell that they are selected if they appear with handles around them as shown in Figure 9 6 on page 113 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 9 Function Block Diagrams Figure 9 6 Function Blocks in FBD with Handles When cutting or copying all inputs and outputs must be attached to something be it a Variable or the input or output of another function block When pasting a copy of a function block into the program from which it was copied LogicPro automatically assigns it a new unique name as shown in Figure 9 7 Doc 28002 00 Rev 3 00 Figure 9 7 Pasted Function Block in FBD When deleting a function block all the Variables dependent upon that function block are deleted as well as shown in Figure 9 8 and Figure 9 9 on page 114 Watlow Anafaze 113 Chapter 9 Function Block Diagrams LogicPro User s Guide Figure 9 8 Function Block Before Deletion With Handles Figure 9 9 Function Bloc
232. priority than the CD bit in this function block CD is the Counter Down enable bit As long as the reset bit is False each False to True transition of this bit decrements the current value until the current value equals zero In a Ladder Diagram program the value of CD is determined by the Boolean evaluation of elements placed between the left power rail and CD in the function block In FBD programs the value of CD is determined by the Variable connected to CD If no contacts are placed on the rung before CD the default value of CD is True This bit has the lowest evaluation priority of the input bits in this function block R is the Counter Up reset bit When this bit is True the current value is set to zero and the QD output bit is disabled In a Ladder Diagram program the value of R is determined by the Boolean evaluation of elements placed between the left power rail and R in the function block In FBD programs the value of R is determined by the Variable connected to R If no contacts are placed on the rung before R the value of R is always False This bit has the highest evaluation priority of the input bits in this function block LD is the Counter Down load bit When this bit is True the current value is set to the preset value and the QU output bit is disabled In a Ladder Diagram program the value of LD is determined by the Boolean evaluation of elements placed between the left power rail and LD in the function block In FBD
233. put bit This bit is always enabled It does not affect the rest of the program since the ILC function block s position is always at the end of a rung Rotation RROT LROT Inputs Doc 28002 00 Rev 3 00 symbol1 RROT LROT The rotation function shown in Figure 10 45 performs a bit level rotation of 16 bit or 32 bit integers the right rotation RROT moves the i th bit into the i 1 th bit as the lowest bit is carried into the highest the left rotation LROT moves the i th bit into the i 1 th bit as the highest bit is carried into the lowest bit The operation is performed on either BIN or BCD numerals which are treated simply as a collection of bits such that range checking is not performed symbol2 W L WP or LP The Variable D needs to be declared as integer type of size specified in this symbol as follows Two memory sizes are available for this integer word length W 16 bit and long word L 32 bit In addition the function block s calculation can be performed continuously or only as pulses when the enable bit EN switches value from False to True In the continuous computation case integers are marked as W or L while in the Pulse computation case they are marked as WP or LP RROT LROT EN W Q EN Ww 1 2 N D N D Figure 10 45 The Right and Left Rotation Function Blocks EN is the rotation function block s enable bit the conversion is performed if it is True N is an integer INT or long int
234. rated below Add Program Yasiable Eq Name My Dig Qut Input Oulput ae rsa 10 Physical Address With 10 Size of HOO Initial Yalue E IO Driver Es AG Retained Data Digital IO 2040 Processor 20M0 Comment NOTE The PPC 2010 s module address is 0 zero Analog In 202x The Analog In 202x driver supports the inputs on the PPC 202x series Analog In modules To associate a variable with an analog input 1 Open the Add Program Resource Variable dialog box Enter a unique variable Name Select INT from the Type list Select Input by clicking the check box Select Analog In 202x from the IO Driver list Select WORD from the IO Size list Enter the IO Physical Address The address is X Z X isthe module address 1 4 Z is the module I O number 1 32 8 Click OK Bl COND dbn e CES Doc 28002 00 Rev 3 00 Watlow Anafaze 193 Chapter 12 Function Blocks 194 LogicPro User s Guide PPC 2020 Analog In Module Addressing Example To create a variable named My Input Var that reads the value of the fourth thermocouple on a PPC 2021 module with its rotary address switch set to 3 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Variable x My Input Var TE ar Increment eese 47 Type BOOL a INT E Initial Value EE _ Retained Data amm m Encoder Analog 2030 v Input Outpu
235. rce once to select it Click a second time to deselect it Double clicking an unselected Resource is equivalent to selecting it and clicking OK Click OK A message dialog box appears to confirm deletion of the Resource and all its Programs By clicking OK you remove the Resource name from the list and delete all associated Program files There is no way to recover this information so be absolutely certain you want to delete these files before you click OK 6 Click OK to accept the deletion Click Cancel to abort the deletion Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 4 Resources DRY RACK Figure 4 5 Delete Resource Dialog Box Opening a Resource This option makes the Resource available to you 1 Select the File menu 2 Select Open 3 Select Resource The Open Resource dialog box appears as shown in Figure 4 6 4 Select the Resource you want to open from the list of Resources 5 Click OK The Resource opens displaying its name on the status line You are then prompted to open a Program See Opening a Program on page 42 Figure 4 6 Open Resource Dialog Box Doc 28002 00 Rev 3 00 Watlow Anafaze 39 Chapter 4 Resources LogicPro User s Guide 40 Watlow Anafaze Doc 28002 00 Rev 3 00 Programs Programs form the base unit of the LogicPro development environment Programs are defined in IEC 1131 3 as logical assemblies of all the progra
236. register that in turn is treated as an analog input to a closed loop control channel The controller IO Drivers support variables defined with a size of either BIT or WORD Table 12 3 describes the IO Size options used with IO Drivers Table 12 3 IO Sizes Used with IO Drivers IO Size BIT Select BIT as the IO Size for a variable that Description holds the value of a digital I O state Certain other parameters in the controller are of BIT size WORD Select WORD as the IO Size for a variable that holds an analog I O value Most parameters in the PPC 2000 are of WORD size Word sized variables are used for analog I O and other database parameters such as setpoint and alarm limits Doc 28002 00 Rev 3 00 Watlow Anafaze 187 Chapter 12 Function Blocks PPC 2000 IO Drivers IO Driver Choice LogicPro User s Guide The IO Driver allows the logic program to examine or set an I O value or other value stored in the database Choose the appropriate driver for the value which you want to access Table 12 4 describes what data can be accessed with each IO Driver Table 12 4 Data Accessed by the IO Drivers IO Driver Data Accessed Processor 2010 Digital input and output states and count and frequency input values on a PPC 2010 Proces sor module Analog 202x Encoder Analog 2030 Analog input values on any PPC 202x series Analog Input module Count and frequency input values a
237. remains at zero as long as the enable bit is False TOF INP 4 Q PT ET Figure 10 9 Timer Off Delay Function Block INP is the Timer Off Delay enable bit A True condition of this bit enables the output bit A False condition of this bit triggers the elapsed time to start incrementing in thousandths of a second until the elapsed time equals the preset time After this delay the output bit is disabled until the next True condition of the enable bit In a program using Ladder logic the value of INP is determined by the Boolean evaluation of elements placed between the left power rail and INP in the function block In an FBD program it is determined by the Variable connected to INP If no contacts are placed on the rung before INP the value of INP is always True PT is the Timer Off Delay preset time In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 1 to 32 767 for INT type Variables and 1 to 2 147 483 647 for LONG type Variables thousandths of a second Ifthis Variable is assigned a value out ofthese ranges unpredictable results will occur Q is the timer off delay output bit This bit is enabled and passes power when the enable bit is True When the enable bit is False it remains enabled until the elapsed time becomes equa
238. riable on page 56 Ofr Clone Variables by clicking Clone See Cloning a Resource or Program Variable on page 61 Or Watlow Anafaze 61 Chapter 6 Variables Program FIBER 1 Dry Done HOOL LogicPro User s Guide Edit Variables by clicking Edit See Editing a Re source Program Variable on page 59 Or Delete Variables by clicking Delete See Deleting Resource Program Variables on page 60 Click OK to accept the changes Click Cancel to cancel all the changes you made to the Variables v me e t Figure 6 7 Program Variables Dialog Box Finding and Replacing a Variable In a Program You can use the Find or Replace commands to help you edit ladder diagrams Using the Find Command You can use the Find command two ways To locate a particular Variable name or To locate subsequent instances of a Variable name To use the Find command l 2 62 From the Edit menu Select Find The Find Variable dialog box appears as shown in Figure 6 8 on page 63 Enter the name of the Variable you want to find in the Variable to find field Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 6 Variables 4 Select whether you want to start your search at the begin ning of the Program at your current location 5 Click OK to find the first instance of the Variable name Find Variable
239. rif text in Angular Brackets gt Indicates the name of a button or tool on the screen Indicates a specific key or combina tion of keys on your keyboard ALL CAPS SANS SERIF MONOSPACE Indicates text as it appears in func tion blocks in the program editor Unbolded serif monospace Unbolded Sans Serif Indicates a filename or code as it appears in the User Defined Func tion Block programming windows or text as it appears in ASCII files Sample cross reference print out Safety symbols These symbols are used throughout this manual AN WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious in jury AN CAUTION Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury or property damage NOTE Indicates pertinent information or an item that may be useful to document or label for later refer ence 4 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro Workplace LogicPro uses the Microsoft Windows Graphical User Interface GUI as its operating environment By using standard Windows the LogicPro environment allows you to easily accomplish development tasks in an environment that you are already familiar and comfortable with To successfully use LogicPro you should know how to use Windows The following sections provide a description of LogicPro s screen elem
240. rinter to print on Size and orientation of the paper and how to print single sided or double sided if your printer can print double sided Printer resolution intensity and graphics mode The kinds of fonts to use while print ing Things like print quality and memory tracking for the printer Prints selected portion of an open project or program Exit Closes all open projects and shuts down LogicPro This menu provides useful tools for managing changes for the data in the active window See Table 2 2 on page 9 fora detailed listing of menu items Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev 3 00 Chapter 2 LogicPro Workplace Table 2 2 The Edit Menu Menu Option Description Undo Note This option is only available while editing UDFB C C source c and header h files Also note that the Undo buffer is only one level deep it only contains the last keystroke Selecting Undo twice will per form a double undo or redo Restores what you are working on to the way it was before your very last action For example if you overwrite a line of code this command will remove your edits and restore the line as it was before you began Cut Ctrl X gt Removes the selected objects and places them in a temporary file This material remains in the temporary file until overwritten by subsequent Cut or Copy actions or until you
241. ro Workplace LogicPro User s Guide 24 Watlow Anafaze Doc 28002 00 Rev 3 00 Projects Doc 28002 00 Rev 3 00 Before you begin it is important that you understand the struc ture and building blocks of a LogicPro Project The Project itself resides at the highest level of this hierarchy The next level is called the Resource level A Resource is the controller hardware that will run a logic program A project may consist of many resources or as few as one Each resource contains one or more Programs At the lowest level is the Action Actions reside within the programs The following diagram illustrates these building blocks and their relationship to each other Project P Resource A Resource 1 Program R Program V Action a Action e Action b Action r Action c Program m Program m Action 3 Action 3 Program 4 Action 0 Figure 3 1 Projects Hierarchy Each LogicPro project resides within a separate directory or folder The software creates a new directory for each new project As the developer you can organize projects by selecting where LogicPro creates the directory Watlow Anafaze 25 Chapter 3 Projects LogicPro User s Guide The directory s name corresponds to the project s name and the contains all of the resource subdirectories These subdirectories in turn contain all the r
242. ronym for Basic Input Output System This is firmware that resides on your computer s mother board It provides the essential operating instructions allowing the CPU to address the monitor keyboard and disk drive prior to loading an Operating System Bit A binary digit having a value of zero or one Watlow Anafaze 269 Glossary Bitwise A logic tool that allows you to apply the principles of Boolean Logic to the individual bits of a byte Not all programming languages support bitwise logic but C does support a handful of operators gt gt Shift bits left lt lt Shift bits right amp AND compares two groups of bits OR compares two groups of bits XOR compares two groups of bits complements a group of bits Block In LogicPro block may refer to either Function Blocks or block of data A block of data represents input or output from LogicPro to a controller Resource Log icPro can transfer data in blocks e g to integer vari ables between the IO and the PC Boolean Variable condition that is either True or False and hav ing a size of bit Boolean Logic A system of logic invented in the 1850 s and named af ter its inventor George Boole This is the study of op erations that can be carried out on variables that can only have on of two values 0 FALSE and 1 TRUE Borland C A programming language marketed by Borland and based on the C programming language Branch
243. s then Watlow then LogicPro CPC400 PPC 2000 then click FastLink FastLink runs in the background and appears on the task bar Selecting and Viewing Variables To Select and View Variables 1 To start Variable Watch click Start on the Windows task bar then click Programs then Watlow then LogicPro CPC400 PPC 2000 then click Variable Watch Window NOTE LogicPro must be closed and FastLink must be running for Variable Watch to work correctly Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 15 Downloading amp Monitoring Choose Select Grid from the View menu Select the check box next to each variable whose proper ties and status that you want to view A small red check mark appears in each selected box Select Watch Grid from the View menu The Vari able Watch Window displays the values and other properties of variables that you selected Changing the Value of a Variable To change the value of a variable Forcing Variables Forcing a Variable A CAUTION Doc 28002 00 Rev 3 00 1 2 3 Double click the variable value in the Value column Enter the new variable value Click Yes With the Variable Watch Forcing I O feature You can force a Boolean variable on or off or clear the forced status for the variable You can disable re enable or clear all I O forcing in a program Variables remain in their forced states until you clear or disable the forced condi
244. s LogicPro User s Guide 184 Watlow Anafaze Doc 28002 00 Rev 3 00 Doc 28002 00 Rev 3 00 Input Output Drivers Logic program variables may be internal or they may hold and set values associated with physical I O closed loop control parameters or other memory registers Internal variables are not available to the closed loop control program AnaWin an OIT or any other Human Machine Interface HMI software Internal variables are only available to the logic program and the LogicPro programming and monitoring package All variables that are not internal to the logic program are accessed using I O drivers Several drivers have been provided for the controllers All the drivers allow logic program variables to be linked to registers in the database The database stores all the control parameters such as setpoints process variables PID constants alarm limits and so on The database also contains the I O image for all the digital and analog I O There is also space reserved in the database that can be accessed both by a logic program and an HMI program By linking a variable to the database a logic program can for example change the state of an output read that state of an input or change a closed loop control setpoint for a channel To create a variable that uses an IO Driver you will make a selection for each of the following Variable Type Input or Output e JOSize IO Driver Finally you will enter the IO Ph
245. s placed between the left power rail and SHFT in the function block In FBD programs the value of SHFT is determined by the Variable connected to SHFT If no contacts are placed on the rung before SHFT the default value of SHFT is True however nothing can ever be shifted since there is never a transition The SHFT bit has the Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 10 Function Blocks lowest evaluation priority of the input bits in this function block CLR is the SL clear bit When this bit is True the register is cleared of all values In a Ladder Diagram program the value of CLR is determined by the Boolean evaluation of elements placed between the left power rail and CLR in the function block In FBD programs the value of CLR is determined by the Variable connected to CLR Ifno contacts are placed on the rung before CLR the default value of CLR is False This bit takes the highest evaluation priority of the inputs in this function block BIT is the SL input bit This value ofthis bit is placed in the first position in the register when a False to True transition of the shift bit occurs as long as the clear bit 1s False In a Ladder Diagram program the value of BIT is determined by the Boolean evaluation of elements placed between the left power rail and BIT in the function block In FBD programs the value of BIT is determined by the Variable connected to BIT If no contacts are placed on the rung be
246. s td NG Lah ab as rie 3 Safety symbols 0 ela 4 2 LogicPro Workplace 000ee cece eee eens 5 Menu Bab cce x me e sce ag BUS oe ani pes faa 6 File MENU idet toto Waa ret Ea ae wo onde a 7 Edit MENU i i3 Erud eatin Faced beca i bre etes erac hec d ees 8 View Men uasna Ere NE ACE AC I PE RR NU Oi S EROS 11 TOOISIMENU Paa deo rto o xtate rd ae catered te ace em R 11 UDFB User Defined Function Block Menu 12 Execution Menu llle 13 Simulation Menu eee RR RR 13 Options Menu rie a recs RUP RE RA RE RU ONU E ipe 14 Windows Ment amd ba dre ewe OS aneea 1 RE Xd 16 Help Menu iuuat etes ence ere NAN e ERE ESO 17 Status AA 18 OOIDANS vete hes eer REIS Die I an tO hc a ce rede Lr dre 18 Standard Toolbar sew bu cb Ried Eee ook ae A 18 Language Toolbars eriseeria ee a n eee 20 Using Standard Windows Features lille 22 SEG ACHOS u D ccc oe eoe t M TOC Ce Pana 22 Laddar RUNG amma toad esee terii nents PY NEA 4 plang 22 Standard Text uei Paan oe Ni aca ae ied Gath cale a 23 Doc 28002 00 Rev 3 00 Watlow Anafaze Hl Table of Contents LogicPro User s Guide 3 Projects 1 2 2f RET eM VERRE 25 Creating a Project 0 0 0 00 eee 26 Opening a Project 0 0 eee 27 Copying Projects 2 0 c eee eee 28 Backing Up a Project 0 c eee ae 29 Closing a Project 0 0 c ects 31 Deleting a Project 0 ie eae 31 4
247. se for this cycle only Thus allowing electricity to flow to the next element on the rung For all other conditions this contact remains in the Open state To use the Off To On Transitional Contact 1 Select the Off To On Transitional Contact tool 2 Position the pointer where you want the contact placed and click Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 8 Ladder Diagrams On To Off Transitional Contact JE Normal Coil O Latched Coil lt Doc 28002 00 Rev 3 00 The On to Off Transitional Contact tool allows you to insert on to off transitional contacts into the program window The On To Off Transitional Contact is sometimes known as the Negative Transitional Contact During a single evaluation of the Ladder diagram if the Variable associated with this contact changes from True to False then the contact will close for this cycle only Thus allowing electricity to flow to the next element on the rung For all other conditions this contact remains in the Open state To use On to Off Transitional Contact 1 Select the On to Off Transitional Contact tool 2 Position the pointer where you want the contact placed and click The Normal Coil tool allows you to insert normal output coils into the program window The Normal Coil is set to On when all of the contacts on the Ladder rung pass power to the coil from the left power rail This coil or Function Block remains
248. sing Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagrams program the value of EN is always True In FBD all inputs must be connected to a Variable RA is one comparison value The range of values this Variable can assume is from 3 4x103 to 3 4x10 5 If this Variable is assigned a value out of these ranges unpredictable results will occur RB is another comparison value The range of values this Variable can assume is from 3 4x10 5 to 3 4x10 5 If this Variable is assigned a value out of these ranges unpredictable results will occur Q is the Real Equal To output bit This bit is enabled and passes power when the enable bit is True and the value of A is equal to the value of B The Real Add RADD function block shown in Figure 10 29 on page 149 produces the sum of two real values RADD calculates the sum of one value RA and another value RB and places the result in another real Variable RC when the enable bit EN is True The values of RA and RB can be preset to a constant or assigned a Variable name which allows their value to change dynamically within the program Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Inputs Outputs Chapter 10 Function Blocks
249. ss Encoder_Analog_2030 Y I O Type Digital lO 2040 Z Module I O Number Watlow Anafaze 189 Chapter 12 Function Blocks 190 LogicPro User s Guide The module address is determined by the rotary switch setting on the face of the module with the exception of the processor module which has address zero The module I O number is generally the number on the terminal to which the I O device is attached but see the PPC 2000 User s Guide to be certain The I O type in the address is a digit that indicates the type of I O addressed Used when addressing I O in modules that handle more than one type Table 12 7 lists the options for the I O Type digit in the three place address Table 12 7 I O Type Digit in IO Physical Address O Type Digital I O State Count Value Frequency Value Analog Output Value V N O e Parameter Specific Drivers Database Driver The parameter specific IO Drivers Setpoint Soft_Input Soft_Bool and Soft_Int are used to read or set values for specific parameters The specific parameter value is addressed with its database offset The database offset is the location of a particular value relative to the first value of that parameter For example to access channel 17 s setpoint with the Setpoint IO Driver the IO Physical address will consist of the database offset 17 Table 12 8 lists the parameter specific drivers and the corresponding database offse
250. ss Than Equals Not Equal To Not And Or amp amp I And Not Or not Left Parenthesis Right Parentheses To assign a logical condition to a Transition 1 Select the Selector tool 2 Double click on the Transition to which you want to assign a condition The Transition Condition dialog box appears 3 Select a variable for the transition by selecting the appropriate checkbox and double clicking the variable name in the list 4 Ifthe condition expression needs an operator press the Operator List button on the dialog box Add the operator by double clicking it 76 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Loop Back 13 Doc 28002 00 Rev 3 00 NOTE Chapter 7 Sequential Function Charts 5 Select the appropriate checkbox in the Variable Type section of the dialog box and click Add Edit Delete or Cancel to define any variables you need The appropriate dialog box appears and allows you to define the variables Once a variable is defined it appears in the Variable List dialog box See Project Variables on page 51 and Resource Variables on page 56 for more details adding editing deleting and cloning variables 6 Repeat steps 3 to 5 as needed to complete the transition condition expression 7 Click OK The Transition condition now appears next to the Transition in the program This condition can be changed by
251. st valid value whenever ENO is disabled Real Subtract RSUB Doc 28002 00 Rev 3 00 The Real Subtract RSUB function block shown in Figure 10 30 on page 150 produces the difference between two values Watlow Anafaze 149 Chapter 10 Function Blocks LogicPro User s Guide RSUB calculates the difference between one value RA and another value RB and places the result in another Variable RC when the enable bit EN is True The values of RA and RB can be preset to a constant or assigned a Variable name which allows their value to change dynamically within the program Figure 10 30 Real Subtract Function Block Inputs EN is the Real Subtract enable bit A True condition of this bit causes the value of RB to be subtracted from the value of RA and the result stored in RC In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagram program the value of EN is always True In FBD all inputs must be connected to a Variable RA is the value to be subtracted from The range of values this Variable can assume is from 3 4x10 5 to 3 4x10 5 If this Variable is assigned a value out of these ranges unpredictable results will occur RB is the value to subtract The range of va
252. t IO Physical Address p4 lu With IO Size of Word AA 10 Driver i Encoder Analog 20 Soft Inte The Encoder Analog 2030 driver supports the inputs and outputs on PPC 2030 Encoder In Analog Out Module To associate a variable with an encoder input or an analog output 1 2 3 4 CA Watlow Anafaze Open the Add Program Resource Variable dialog box Enter a unique variable Name Select INT from the Type list Select Input or Output by clicking the corresponding check box Select Encoder Analog 2030 from the IO Driver list Select WORD from the IO Size list Enter the IO Physical Address The address is X Y Z X isthe module address 11 14 Y is the type of I O 1 Count 2 Frequency 3 Analog Out Z 1s the module I O number 1 4 Click OK Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks PPC 2030 Encoder In Analog Out Addressing Example To create a variable named CountIn 3 that reads the count on the third input on a PPC 2030 module with its rotary address switch set to 14 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Yariable x v input _ Output 10 Physical Address pata With IO Size of Initial Value Retained Data Continue The Digital IO 2040 driver supports the inputs and outputs on the PPC 2040 Digital IO Module To associate a variab
253. t Project Variable dialog box by clicking the Clone button Delete the Variable you are editing by clicking the Delete button Watlow Anafaze 53 Chapter 6 Variables LogicPro User s Guide Edit Piggot Vaik Comment Figure 6 3 Edit Project Variable Dialog Box Deleting a Project Variable To delete a single Project Variable 1 Select the Variable you want to delete in the Project Variables dialog box 2 Click the Delete button The Verify dialog box ap pears NOTE You are prompted to confirm deletion only if the Options Variable Confirm Deletion choice is selected 3 Click Yes to delete the Variable Click No to cancel the deletion To delete multiple Variables simultaneously 1 Select the first Variable you want to delete in the Project Variables dialog box 2 To select another non sequential Variable a Press and hold lt CTRL gt b Click the additional Variables you want to delete Only the first selection and the additional Variables are highlighted 54 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 6 Variables To select a sequence of Variables 3 c Press and hold lt SHIFT gt d Click on the last in the sequence of Variables you want to delete This action highlights the first selec tion the last selection and all of the Variables in between the two Click Delete The Verify dialog box appears NOTE You are prompted to confirm
254. t The Copy Project dialog box appears as shown in Figure 3 5 4 Select the Project to be backed up from the list of Existing Project s Enter the new name for the backup copy of the project 5 Select the drive and directory in which LogicPro should place the copy NOTE If you are backing up the project to protect it from mechanical failure then it should be stored on a different disk drive or storage media 6 Click OK Copy Project CAKITCHEN Figure 3 5 Copy Project Dialog Box 30 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 3 Projects Closing a Project To close a Project 1 Select the File menu 2 Select Close 3 Select Project If any of the Programs within the Project you are closing have changed LogicPro prompts you to save your changes before it closes the Project Deleting a Project Doc 28002 00 Rev 3 00 NOTE NOTE A Project must be closed before it will appear on the list of Projects that may be deleted To delete a Project 1 Select the File menu 2 Select Delete 3 Select Project The Delete Project dialog box appears as shown in Figure 3 6 on page 32 4 Select the Project or Projects you want to delete from the list By default no projects are selected when the dialog box appears Click on a Project once to select it for deletion Click on it a second time to deselect it Double clicking on an unselected Project is equivalent t
255. t of range C is the product value C contains the product of A and B as long as the enable bit is True The range of values this Variable can assume is from 32 768 to 32 767 including 0 for INT type Variables and 2 147 483 648 to 2 147 483 647 including 0 for LONG type Variables If this Variable is assigned a value out of these ranges ENO is disabled C reverts to its last valid value whenever ENO is disabled The Divide DIV function block shown in Figure 10 17 on page 134 produces the quotient of two values DIV calculates the quotient between one value A which is the dividend and another value B which is the divisor and places the result in another Variable C when the enable bit EN is True The values of A and B can be preset to a constant or assigned a Variable name which allows their value to change dynamically within the program Watlow Anafaze 133 Chapter 10 Function Blocks LogicPro User s Guide DIV EN 4 ENO A C B Figure 10 17 Divide Function Block Inputs EN is the Divide enable bit A True condition ofthis bit causes the value of A to be divided by the value of B and the result stored in C In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagr
256. t or Output by clicking on the corresponding check box Select Database from the IO Driver list Select WORD or BIT as the IO Size Enter the IO Physical Address The address is D is the parameter number D is the database offset Click OK Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks Channel Parameter Example To create a variable named Mode 5 that sets the control mode for channel 5 set the options in the Add Program Resource Variable dialog box as illustrated below The parameter number for control mode is 7 Control mode is a channel parameter so the database offset is the channel number 5 Add Program Yariable Database Doc 28002 00 Rev 3 00 Watlow Anafaze 219 Chapter 12 Function Blocks LogicPro User s Guide Global Parameter Example To create a variable named Ambient that reads the ambient temperature at the cold junction compensation sensor set the options in the Add Program Resource Variable dialog box as illustrated below The parameter number for ambient temperature is 34 The database offset 1 is found in the CPC400 User s Guide dd Program Yariable Database 220 Watlow Anafaze Doc 28002 00 Rev 3 00 Compiler Setup LogicPro uses the Borland C 4 0 compiler both for simulation and for logic programs down loaded to a controller Setting up the Compiler The compiler configuration tells LogicPro the locatio
257. t ranges Table 12 8 Addresses Used with Parameter Specific IO Drives IO Driver Database Offset Setpoint Channel Number 1 48 Soft Input Soft Input Number 1 50 Soft Bool Soft Bool Number 1 1000 Soft Int Soft Int Number 1 100 The Database IO Driver is used to examine or set values for any closed loop control parameter such as Control Mode that is not supported by one of the other drivers The Database driver allows access to all controller parameters Other drivers are provided for faster access to specific parameters Of course controller parameters that are read only cannot be adjusted The specific parameter value is addressed with the Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Doc 28002 00 Rev 3 00 Chapter 12 Function Blocks parameter number and its database offset See Table 12 9 for a description of this syntax Table 12 9 Address Syntax for Database Driver Syntax Used with this IO Driver D Parameter Number Database D Database Offset The parameter number is a numeric identifier used to address a closed loop control parameter Each parameter in the PPC 2000 has a parameter number See the Custom Interfacing chapter of the PPC 2000 User s Guide for a list of parameter numbers and descriptions The database offset is the location of a particular value relative to the first value of that parameter For example each channel has a Heat Proportional Ba
258. ter a unique variable Name Select BOOL from the Type list Select Output by clicking the check box Select Digital_Out_206x from the IO Driver list Select BIT from the IO Size list Enter the IO Physical Address The address is X Z Xis the module address 41 46 Z is the module I O number 1 16 8 Click OK D dev EE Ral PPC 206x Digital Out Addressing Example To create a variable named Relay 6 that sets the state of the output on a PPC 206x module with its rotary address switch set to 41 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Yariable X Relay_6 6th _ input v Output Increment HR IO Physical AZ With IO Size of Initial Value TTE river LT Retained Data Database Digital IO 2040 Processor 2010 Digital Out 206x Soft Bool 198 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 12 Function Blocks Digital In 207x The Digital In 207x driver supports the inputs on the PPC 207x Digital In series modules To associate a variable with a digital input 1 Open the Add Program Resource Variable dialog box Enter a unique variable Name Select BOOL from the Type list 2 3 4 Select Input by clicking the check box 5 Select Digital In 207x from the IO Driver list 6 Enter the IO Physical Address The address is X Z X isthe module address 51 54 Z is the module I O number 1 16
259. the enable out bit becomes False and RC retains its previous value Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Outputs Real Move RMOV Inputs Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks ENO is the Real Divide enable out bit This bit is enabled and passes power when the enable bit is True as long as the value of RC does not go out of range RC is the quotient RC contains the quotient of RA and RB as long as the enable bit is True The range of values this Variable can assume is from 3 4x10 to 3 4x103 No remainders are stored in this value only the whole number value If this Variable is assigned a value out of these ranges ENO is disabled RC reverts to its last valid value whenever ENO is disabled The Real Move RMOV function block shown in Figure 10 33 places the value of one Variable into another Variable RMOVE places the input Variable RIN value in the output Variable ROUT while the enable bit EN is True The output bit Q always assumes the value of the enable bit therefore when the enable bit is True the output bit 1s also True The Variables for RIN and ROUT can be any type Figure 10 33 Real Move Function Block EN is the Real Move enable bit A True condition of this bit causes the value of RIN to be copied to ROUT In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in
260. tion Blocks into the program window Function Blocks are useful in Ladder diagram programs to perform integer or real mathematics counter or timer functions or other higher functions Function Blocks must have unique names and their I O must be assigned I O may be constants variables or rung connections Refer to Inserting Function Blocks on page 89 for detailed instructions on adding Function Blocks to Ladder diagrams The Comments tool allows you to type comments into the Rung Comments dialog box With this feature you can document each rung in the Ladder diagram to Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 8 Ladder Diagrams Note each element present Define its purpose in the control program Youcan view and edit this text as needed To use Comments 1 Select the Comments tool 2 Position the pointer within the box formed by the grid points that includes the number of the rung you want to comment and click This opens the Comments dialog box 3 Type your comments 4 Click OK to save your comments Click Cancel to close the dialog box without saving your comments Cross Reference m The Cross Reference tool allows you to obtain a list of the other occurrences of program elements you click on The LogicPro Cross Referencing feature provides on line viewing and report print outs of the Variables defined as part of the Control program This helps you docume
261. tion you may wish to test several scenarios LogicPro lets you reset the simulation and start over Recompiling the simulation code is unnecessary By resetting the simulation all variables and constants will return to their original values However the simulation will retain all of the set up characteristics you have already created To reset the simulation 1 Select the Simulation menu 2 Select Simulation Reset Click the Simulation Reset tool This will cause the Simulation Setup dialog box to open as shown in Change Simulation Variables Doc 28002 00 Rev 3 00 You can assign specific values to Variables to test the program under a variety of conditions Select Change Simulation Variable from the Simulation menu The Change Variables dialog box appears Alternatively you can push the Change Simulation Variables button from the Standard toolbar Once in the dialog box you can assign or modify Variable values as often as you like You can minimize or move this dialog box so as not to clutter your work place This dialog box will automatically close when you close all of the simulation windows for the program or click OK C Change V arsalbies al Jal Current vatu E ne wee sd Figure 14 4 Change Variables Dialog Box Watlow Anafaze 231 Chapter 14 Simulation LogicPro User s Guide Variables whose values are determined by the program will not retain values set in the Change Variables dialog
262. tion s or termi nate the logic program Closing Variable Watch will not clear or disable forced variables Force variables only when you are sure it is safe to do SO To force a variable on or off 1 Start FastLink Click Start on the Windows task bar then click Programs then Watlow then LogicPro CPC400 PPC 2000 then click FastLink Start Variable Watch Click Start on the Windows task bar then click Programs then Watlow then LogicPro CPC400 PPC 2000 then click Variable Watch Window Choose Select Grid from the View menu Watlow Anafaze 243 Chapter 15 Downloading amp Monitoring LogicPro User s Guide Select the check box in the Select column next to the variables you want to monitor in the Watch Grid Select Watch Grid from the View menu In the Watch Grid right click on a variable Select Force ON to force a variable on Force OFF to force a variable off or Clear Force to clear the forcing of the variable Enabling Disabling and Clearing Forcing A CAUTION Saving View Settings Watch Grid View 244 Variables remain in their forced states until you clear or disable the forced condition s or termi nate the logic program Closing Variable Watch will not clear or disable forced variables Force variables only when you are sure it is safe to do SO To enable disable or clear all forcing 1 2 Select Forcing Options from the Options menu Select Enable Disable or
263. ts will occur Q is the Real Greater Than output bit This bit is enabled and passes power when the enable bit is True and the value of RA is greater than the value of RB Real Less Than RLT The Real Less Than RLT function block as shown in Figure 10 27 on page 147 tests if a real Variable value is less than a reference value RLT tests whether one value RA is less than another value RB when the enable bit EN is True If the relationship RA amp RB is True then the output bit Q is enabled The output bit is disabled either when the enable bit becomes False or the value of RA is no longer less than RB The values of RA and RB can be preset to a constant or assigned a symbolic name which allows their value to change dynamically within the program Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Inputs Output Real Equal To REQ Doc 28002 00 Rev 3 00 Chapter 10 Function Blocks RLT EN 4 Q RA RB Figure 10 27 Real Less Than Function Block EN is the Real Less Than enable bit A True condition of this bit causes the comparison between RA and RB to occur In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN the value of EN is always True In FBD all
264. twice in rapid succession usually with the left mouse button of your pointing device Click Left Depressing the left mouse button on your mouse or pointing device Click Right Depressing the right mouse button on your mouse or pointing device Clipboard A Windows Application that captures and temporarily stores information Used primarily in editing this is the area where cut and copy information resides until replaced with new data or shutting down the system Cloning A method of quickly duplicating variables within a Project Coil Electrical element utilized to energize switch contacts motors etc Coil Normal A coil that enables an output when it is energized a TRUE condition is present Coil Unlatched A coil that when powered resets to the off condition Sometimes referred to as a Reset Coil Coil Latched A coll that when power is available from the left pow er rail is set to the on condition and remains on until reset Sometimes referred to as a Set coil COM Channel Serial communication path through which a PC trans mits and receives data Doc 28002 00 Rev 3 00 Glossary Compiler Computer program such as Borland C that gener ates machine language code that is eventually loaded onto the Resource controller COM Port A computer interface used for connecting and commu nicating with external devices COM1 The name of a serial communication port This
265. uction Table 1 1 LogicPro User s Guide Chapter Descriptions Chapter Title Description Introduction The LogicPro Workplace Introduction and general information The LogicPro Workplace and screen layout Projects Creating using and changing LogicPro Projects Resources Programs Creating using and changing LogicPro Resources Creating using and changing LogicPro Pro grams within a resource Variables Creating using and changing LogicPro Vari ables within projects resources and programs Sequential Function Charts Ladder Diagrams Explanation of the tools available for program ming in the SFC Sequen tial Function Chart language in LogicPro Explanation of the tools available for program ming in the Ladder Dia gram LD language in LogicPro Function Block Diagrams Explanation of the tools available for program ming in the FBD Function Block Diagram language in LogicPro Function Blocks Watlow Anafaze Information on Standard IEC 1131 3 and Vendor provided function blocks specific information on many of the most com mon function blocks how to use function blocks in your programs and where to look for more informa tion Doc 28002 00 Rev 3 00 LogicPro User s Guide Conventions Used Doc 28002 00 Rev 3 00 Chapter 1 Introduction Chapter Title Description User Defined Information about
266. ue from the Function Block to the variable specified by the Ladder diagram For example if the UDFB wants to turn on Q it must reference Q as a pointer An instance of structure pointer is also passed to the main function this structure points to the variable data Initialization Function StructA gt A A Reset Function The initialization function shown in the following example is called once when the user Program starts to run InitXXXX XXXXStruct XXXXStructA intig A intig B The instance of the structure pointer and non Boolean inputs variable are passed to the function The initialization function provides the user the opportunity to initialize the structure members or initialize certain hardware devices before the main function is called in the user Program for every scan The reset function shown in the following example is only called if the UDFB is in an unstored action and that action becomes inactive void ResetXXXX XXXXStruct XXXXStructA void Exit Function Doc 28002 00 Rev 3 00 When an unstored action becomes inactive it resets all variables to the original state that they where in upon entering the action This function should be used to reset internal variables or flags that may have changed during the course of the action being active In many cases the function can be empty The exit function shown in the following example is called if the user Program terminates gracefully
267. unction Block INP is the Timer On Delay enable bit A True condition of this bit triggers the elapsed time to start incrementing in thousandths of a second until the elapsed time equals the preset time After this delay the output bit is enabled as long as the enable bit remains True In a program using Ladder logic the value of INP is determined by the Boolean evaluation of elements placed between the left power rail and INP in the function block In FBD programs the value of INP is determined by the Variable connected to INP If no contacts are placed on the rung before INP the value of INP is always True Watlow Anafaze 123 Chapter 10 Function Blocks LogicPro User s Guide PT is the timer on delay preset time In Ladder logic assign this input a symbolic name or constant value in the Assign Function Block Symbolic Input Output dialog box In FBD assign a variable to this input in the Variable Assignment dialog box The range of values this Variable can assume is from 1 to 32 767 for INT type Variables and 1 to 2 147 483 647 for LONG type Variables thousandths of a second Ifthis Variable is assigned a value out of these ranges unpredictable results will occur Outputs Q is the timer on delay output bit This bit is enabled and passes power when the elapsed time becomes equal to the preset time and remains enabled until the enable bit is False ET is the timer on delay elapsed time The value of this Variable increments in
268. used with each category of IO Driver Hardware Specific Drivers The hardware IO drivers are used to access digital I O states and process variable values The specific IO value is addressed by number Table 12 12 lists the hardware specific drivers and the corresponding database offset ranges Table 12 12 Addresses Used for Hardware Specific Drivers IO Driver IO Physical Addresses Channel Number 1 to 5 CPC400 PV CPC404 1 to 9 CPC408 CPC400 Digital Out Digital Output Number 1 to 34 CPC400 Digital In Digital Input Number 1 8 Parameter Specific Drivers The parameter specific IO Drivers Setpoint Soft Input Soft Bool and Soft Int are used to read or set values for specific parameters The specific parameter value is addressed with its database offset Table 12 13 lists the parameter specific drivers and the corresponding database offset ranges Table 12 13 Addresses Used with Parameter Specific IO Drivers IO Driver Database Offset Channel Number 1 to 5 CPC404 1 to 9 CPC408 Soft Input Soft Input Number 1 9 Soft Bool Soft Bool Number 1 256 Soft Int Soft Int Number 1 100 Setpoint Database Driver The Database IO Driver is used to examine or set values for any closed loop control parameter such as Control Mode that is not supported by one of the other drivers The Database driver allows access to all controller parameters Other drivers are provided
269. variable in the logic program that points to the Soft Bool as if it were physical I O This allows the logic program to examine and set values of Soft Bools For example an HMI program could allow a user to set a software switch that is read by and affects the operation of a logic Program The I O address for Soft Bools is the Soft Bool number To associate a variable with a Soft Bool 1 Open the Add Program Resource Variable dialog box 2 Enter a unique variable Name 3 Select BOOL from the Type list 4 Select Input or Output by clicking the corresponding check box 5 Select Soft Bool from the IO Driver list 6 InthelO Physical Address field enter the Soft Bool num ber 1 1000 7 Click OK Soft Bool Addressing Example To create a variable named Soft Bool 278 that sets the value of Soft Bool 278 set the options in the Add Program Resource Variable dialog box as illustrated below Add Program Variable x Soft_Bool_278 input v Output Increment ae ba Cg With IO Size of Initial Value EISE river a Retained Data Database Digital IO 2040 Processor 2010 amm Digital Out 206x 202 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Soft Int Doc 28002 00 Rev 3 00 Chapter 12 Function Blocks A Soft Int can be used in logic programs by creating a variable in the logic program that points to the Soft Int as if it were physical I O This allows the logic
270. vide RDIV function block shown in Figure 10 32 produces the quotient of two real Variable values RDIV calculates the quotient between one value RA which is the dividend and another value RB which is the divisor and places the result in another Variable RC when the enable bit EN is True The values of RA and RB can be preset to a constant or assigned a Variable name which allows their value to change dynamically within the program Figure 10 32 Real Divide Function Block EN is the Real Divide enable bit A True condition of this bit causes the value of RA to be divided by the value of RB and the result stored in RC In a program using Ladder logic the value of EN is determined by the Boolean evaluation of elements placed between the left power rail and EN in the function block In FBD programs the value of EN is determined by the Variable connected to EN If no contacts are placed on the rung before EN in a Ladder Diagram program the value of EN is always True In FBD all inputs must be connected to a Variable RA is the dividend The range of values this Variable can assume is from 3 4x10 to 3 4x103 If this Variable is assigned a value out of these ranges unpredictable results will occur RB is the divisor The range of values this Variable can assume is from 3 4x103 to 3 4x103 If this Variable is assigned a value out of these ranges unpredictable results will occur Also if RB is assigned a value of zero 0
271. w to work with UDFB files Editing UDFB Files When UDFB header or C files are active on the window the Undo Cut Copy and Paste commands in the Edit menu are enabled You can use these functions to edit text Opening UDFB Files To Open UDFB files 1 Select File 2 Select Open 3 Select User Defined Function Block to open the header and C files of the selected UDFB The Open User Defined Function Block dialog box shown in Figure 11 6 appears 4 Selectthe UDFB you want to open 5 Click OK Upan Used Dislimed Fanchon Block B Sample LUFA ET Figure 11 6 Open User Defined Function Block Dialog Box Closing UDFB Files To Close UDEB files 1 Select File 2 Select Close Doc 28002 00 Rev 3 00 Watlow Anafaze 177 Chapter 11 User Defined Function Blocks LogicPro User s Guide 3 Select User Defined Function Block to close the header and C files of the selected UDFB 4 Select the UDFB you want to close You will be prompted to save any files that have changed 5 Click OK Saving UDFB Files You can save the UDFB header and C files by selecting Save from the File menu Deleting UDFBs To delete UDFBs 1 Select File 2 Select Delete 3 Select User Defined Function Block to remove the files for one or more UDFBs The Delete User Defined Function Block dialog box appears as shown in Figure 11 7 4 Select the UDFBs you want to delete 5 Click OK to delete the UDFBs Canc
272. x Doc 28002 00 Rev 3 00 Watlow Anafaze 51 Chapter 6 Variables Adding a Project Variable To add a Project Variable LogicPro User s Guide 1 Click Add in the Project Variable dialog box This dialog box to opens as shown in Figure 6 2 Increment Type Initial Value Comment 1 Figure 6 2 Add Project Variable Watlow Anafaze Enter the Variable name This name must follow the Variable naming conventions discussed in Naming Conventions on page 49 If you want to create several Variables with similar names enter the root name in the Name field and enter a starting number and ending number in the Increment field By this method multiple Variables are created each named with the root name and each appended with a number Select the Variable type from the list of types either BOOL Boolean INT Integer LONG Long integer REAL Floating Point Enter the Initial Variable Value If this field is left blank zero is the default value The Variable holds the value of zero until the Program changes that value Initial value can be used for constant values of function blocks or constant true false Variables Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 6 Variables Boolean Variables are 1 bit in length and can have a value of 1 or 0 corresponding to true and false respec tively Integer Variables are 16 bit numeric Variables ran
273. x shown in Figure 11 2 on page 171 appears 3 Enter the name of the symbol in the Name field 4 Selectthe type of symbol from the Type field 5 Click OK to add the symbol to the group 170 Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 11 User Defined Function Blocks Add Symbol Definition FI Figure 11 2 Add Symbol Definition Dialog Box To edit an Input Output or Internal 1 Select a symbol by clicking on it 2 Click Edit The Edit Symbol Definition dialog box shown in Figure 11 3 appears 3 Edit the name of the symbol in the Name field if necessary 4 Edit the type of symbol from the Type field if necessary 5 Click OK to replace the old symbol with the new symbol in the group NOTE When type is Real the name MUST start with the letter R Figure 11 3 Edit Symbol Definition Dialog Box Doc 28002 00 Rev 3 00 Watlow Anafaze 171 Chapter 11 User Defined Function Blocks LogicPro User s Guide UDFB Files As soon as a new UDFB is defined LogicPro automatically generates two files for the UDFB one header file and one C file The header and C file have the short name of the UDFB with a prefix indicating in which resource it has been defined For example PPCCNT h and PPCCNT c are the names for the header and C files if the UDFB has a short name of CNT and is defined for PPC 2000 The header file contains the definition of a structure for that UDFB an
274. you have more than one monitoring window open at a time this flashing green dot indicates there are message exchanges between any one monitoring window and the target resource not necessary the current active window The individual window s title indicates when the last reply was received Timer canes HETON oj kf 32000 ET ET Gn 238 Figure 15 2 LogicPro Monitoring Window To turn monitoring off You can temporarily disable the messaging between a particular monitoring window and the target resource by the following procedure 1 Select the View menu 2 Make the monitoring window become the active win dow 3 Select Monitor On Off Click on the Monitor On Off tool 4 Repeat the above step to turn a monitoring window back on A check mark in front of the menu or a green block in the middle ofthe Speed Bar button indicates the monitor is on for the current active monitor window Watlow Anafaze Doc 28002 00 Rev 3 00 LogicPro User s Guide NOTE Chapter 15 Downloading amp Monitoring Having too many monitoring windows open at the same time can cause performance degradation If this happens close some of the monitoring win dows or turn Monitoring Off for some of these windows Monitoring Sequential Function Charts LogicPro identifies the active step in the running SFC by highlighting it in green see Figure 15 3 Condition1 N imr 1 Figure 15 3 Active Step in an SF
275. ysical Address that specifies the piece of information with which you want to link the Variable The following sections describe these choices Watlow Anafaze 185 Chapter 12 Function Blocks NOTE LogicPro User s Guide If an output Variable in a logic Program sets a val ue using an IO Driver and IO Physical Address the associated register in the controller cannot be written to by the closed loop control program an HMI or any other device Variable Types Variables in a logic program can be declared to be one of four types Table 12 1 describes the options for Variable Type Table 12 1 Variable Types Type BOOL Description Boolean variables can hold values of 0 or 1 only 1 bit This is the type of variable to create to associate with coils in a ladder diagram or transi tions in an SFC Choose BOOL for variables that will be associated with digital I O A BOOL vari able always has its IO Size set to BIT INT Integer variables can hold values from 32 768 to 32 767 16 bits Use this variable type with ana log I O and most closed loop control parameters such as setpoint Always choose WORD for the IO Size of an INT variable LONG REAL Long integer variables can hold values from 2 147 483 648 to 2 147 483 647 32 bits LONG variables are always internal You cannot associ ate a LONG variable with an I O point or closed loop control parameter Real variables also known as
276. ze Doc 28002 00 Rev 3 00 LogicPro User s Guide Chapter 14 Simulation FILES Task TESTLEDS Branches 2 STATISTICS w mining Eimorz iv pera 2x8 Figure 14 1 Compiler Dialog Box GC logboPra3ECRO OFF Borland Ces Uersdan 3 92 Gapurigit te Ka 1774 Enrglaed loaternarlgnal ri lagirpra tartladzr strzpgpc mri lggirpra erkladx rpprc5imit maka e ri m35 log hepra sent leds 4b ppo guit pin lag ie DRI teat adgs Hposkarishle FE 11 lagirpra stszrtladzstz latc Ic lanmirpra tmert adzstrppe ite E i logitpra tert leads ta Turbo kish Version amp aper eH hr a 19 2 177 17974 ir lie Internat lasa Warning Ma nadala definition File zrpsciliasdt ucing defantee Figure 14 2 Borland C Compiler DOS window Using the Simulation Tools Doc 28002 00 Rev 3 00 When in the Simulation mode LogicPro will enable the Simulation tools on the Standard toolbar Normally these buttons are grayed out and unavailable You must be ina Simulation before these buttons are available to you Table 14 1 on page 228 lists all of the buttons and their corresponding functions Watlow Anafaze Chapter 14 Simulation LogicPro User s Guide Table 14 1 Simulation Tools This Button Performs This Function Simulation Setup E E Increment Simulation Timer Ticks Scan Simulation Logic Ej s e Simulation Reset Change Simulation Variables Simulation Setup

Anafaze LogicPro User`s Manual

Contents

Download Pdf Manuals

Related Search

Related Contents