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1. Third party Application Example Section 1 4 Figure 1 1 Using MicroComputing to Access Data in the Control Engine MicroComputing A5E00077133 01 Getting Started with SIMATIC MicroComputing Sample Program Used with the Application Examples Figure 1 2 shows the sample program used by the S7 200 application example The program uses the following logic e f Input bit 0 0 I 0 0 is on the program increments a value stored in MB1 and moves the new value to QBO e f Input bit 0 1 I 0 1 is on the program decrements a value stored in MB3 and moves the new value to QB1 e If Input bit 0 2 I 0 2 is on the program increments a value stored in MB5 and moves the new value to QB2 Use STEP 7 Micro WIN to create and download this program to the control engine OB1 Sample program Counters for S7 200 The application examples in the Getting Started chapter use this program Create a STEP 7 Micro WIN project enter the program and download it to the control engine Network 1 Add 1 If 10 0 is ON increment MWO by 1 and transfer the output to QBO 10 0 ADD_I MOV_B M6 0 EN ENO EN ENO MWO IN1 OUT MWO MB1 IN OUT QBO 1 IN2 Network 2 Subtract 2 If 10 1 is ON decreme
2. Cancel Apply Help Figure 5 1 Assigning Variables for a Button Control MicroComputing A5E00077133 01 User Controls Specifying Variables and Data Types As an option MicroComputing allows you to specify a data type when you assign a variable to one of the properties of a SIMATIC control You define the data type by entering the absolute address for the memory location followed by a colon and then the data type Figure 5 2 Be careful in assigning data types If you are connecting an Edit control the values for some S7 200 data types will not display properly unless the data type you assign matches the Data Format field in the Edit Control properties box For example you can define an assigned variable as a REAL data type by entering MD10 real when you assign the variable but you must be sure to set the Data Format field in the Edit Control properties box to Real Siemens SIMATIC DataControl Properties x General Engine Connections Events Name Controls Assigned Variable E 7Datat md10 real Edit1 Alignment __ Appearance Browse BackColor BackStyle porce nie Vatarorma A DisplayValue Update rate ms 100 Enabled ER aclor Fon i ForeColor Deadband 0 Locked Value Automatic write mode Add Delete Filter Apply filter to properties Cancel Apply Help Figure 5 2 Assigning Va
3. Button Control Properties General Tab x 5 5 User Controls Defining the Appearance of the Button Control 5 6 The Picture tab of the Properties dialog Figure 5 4 allows you to browse to a picture for the two states of the Button control Select the Off state FalsePicture or the On state TruePicture and then click on Browse to select the picture to be displayed for that state You can use any pictures for the On and Off states but graphics are only allowed if 1 wGraphical is selected in the Style field of the General tab MicroComputing provides additional bitmaps Browse to the WinAC WinCP bitmap directory Siemens_SIMATIC_UserControls Button Properties xl General Picture Font Color Name Properties Preview FalsePicture cea Cancel Apply Help Figure 5 4 Button Control Properties Picture Tab MicroComputing A5E00077133 01 User Controls Defining the Typeface of the Button Control The Font tab of the Properties dialog Figure 5 5 allows you to define the typeface and size for the text on the Button control e Font Select the typeface for the text from a list of standard typefaces e Size Select the point size or enter a specific point size for the text e Effects Select other typographical options boldface italic underline or strike through The Sample Text field displays the selection of the Font property x o MS Sans Seri
4. Cancel Apply Help Figure 5 8 Edit Control Properties General Tab Table 5 3 Size of Data Types for the Edit control Data Type Setting Size Description Boolean 0 1 bit Single bit value Byte 1 1 byte Unsigned single byte value Word 2 2 byte Unsigned two byte value Integer 3 2 bytes Signed two byte integer value Double Word 4 4 bytes Unsigned four byte value default Double Integer 5 4 bytes Signed four byte integer value Real 6 4 bytes Signed four byte real floating point value Timer 7 2 bytes Unsigned two byte value Counter 8 2 bytes Unsigned two byte value MicroComputing A5E00077133 01 5 13 User Controls Defining a Scale for Displaying Values The Scaling tab of the Properties dialog box Figure 5 9 allows you to define a scale for displaying the value in the memory location This scaling factor is used both in reading a value from and writing a value to the control engine You can select one of three scaling options e No scaling of the data default O wNoScaling e Scaling by formula 1 wByFormula e Scaling by range 2 wByRange Siemens_SIMATIC_UserControls Edit Properties x Font Color Name 2 r Ez 7 ok Cancel_ Apply __ Help Figure 5 9 Edit Control Properties Scaling Tab No scaling If you choose the default 0O wNoScaling the Display Value shows a Max of 100 and a Min of 0 MicroComputing 5 14 A5E
5. Figure 4 8 Toggling the Property Filter MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control 4 6 Configuring Custom Events As shown in Figure 4 9 the Events tab allows you to add custom events that are triggered by the Data control You enter a key string and assign that key to a memory location variable If that variable changes then the Data control generates an event with a parameter that contains the string that you entered in the Key field Your program can then react to this event See Section 4 8 for a sample program that responds to events in the CPU Siemens SIMATIC DataControl Properties x General Engine Connections Events Name Keys Assigned Variable S7Soft1 m17 3 h S7Data1 Browse OverflowWarning Update rate ms 100 Dead band 0 Add Delete Cancel Apply Help Figure 4 9 Data Control Properties Events Tab Adding an Event The Add button allows you to add user specified events for controller value changes You can write your own code to handle the event by handling the ValueChanged event of a Data control Select a Data control from the expandable list under the Keys field and click on the Add button then type any name you choose for the event for example OverflowWarning Next type a variable in the Assigned Variable field to identify the process value that causes the event to be fired
6. amp values_v i amp vbTab amp State amp Hex states_v i Next i End Sub MicroComputing A5E00077133 01 4 23 Accessing the Process Data with the Data Control Writing Multiple Variables to the Control Engine Table 4 11 provides sample Visual Basic code for using the WriteMultiVariables method of the Data control to write several variables to the control engine Table 4 11 Writing Multiple Variables to the Control Engine Visual Basic Code Private Sub cmdWriteMultVar_Click Index As Integer Dim i As Integer Dim rc As Long Dim names_array 2 As String Dim values_v 2 As Variant Dim states_v As Variant Write three Real floating point values For i 0 To 2 names_array i MD amp i 4 amp REAL values_v i Rnd 1000 Next i re S7Datal WriteMultiVariables names_array values_v states_v Display the values and return codes in a List Box 1lstReal Clear 1lstReal AddItem RetCode amp Hex rc For i 0 To 2 4 24 lstReal AddItem amp names_array i amp amp values_v i amp vbTab amp State amp Hex states_v i Next i End Sub MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control 4 10 Sample Program for Reading and Writing Boolean Data For reading and writing Boolean data you can use the following sets of methods e ReadVariable and Write Variable methods e
7. Figure 4 5 Browsing to a Symbol in the Tag File 2 In the Assigned Variable field enter the memory address in the control engine and enter the absolute address such as MO 0 for the memory location in the control engine Figure 4 5 See Appendix A for information about the data types and memory areas of the S7 200 controllers 3 Click on the Apply button to assign the variable to the property MicroComputing A5E00077133 01 4 7 Accessing the Process Data with the Data Control Adding a Connection If you want to configure a connection for an ActiveX control before you place the control into your ActiveX container you can use the Add button to add an instance of the control to the Controls list Click on the Add button to specify the instance that you want to connect to the Data control After you have added the ActiveX control instance to the Controls list you can select the instance from the list choose the Add button again and add any additional properties For example you could add an Edit control instance to the connections list and then add the Value property to the Edit control in order to assign a variable to the Edit control Deleting a Connection 4 8 If you remove a control from the ActiveX container the connection remains configured in the Data control This means that the next time you place a control of the same name into the container the connection that you configured for the previous control
8. _Add Delete Filter Apply property Figure 1 20 Assigning the Value Property to a Variable Configuring the Edit Control for Binary Data The Edit control is able to display data in a variety of formats For this example you will configure the Edit controls to display the byte of data QB0 QB1 or QB2 in decimal format MicroComputing A5E00077133 01 1 23 Getting Started with SIMATIC MicroComputing Note The Data Format field of the Edit control determines the size of the data to be displayed Use the following procedure to configure the Edit control 1 Select the Edit control Edit1 and click the right mouse button right click to display the shortcut menu From the shortcut menu select the Properties menu command for the Edit control to display the Properties dialog box 2 Click on the arrow beside the Data Format field to display the drop down menu 3 Scroll to the entry for decimal and click on 2 wDecimal to display the value in binary format 0 or 1 See Figure 1 21 4 Click on the Apply button to enter the data and click on the OK button to close the Properties dialog box Repeat this procedure for the other Edit controls Edit2 and Edit3 Siemens_SIMATIC_UserControls Edit Properties General Scaling Font Color Name Alignment v Enabled Data Format 2 wDecimal v Locked Precision 3 C Zer Select Decim
9. Client Server g Tem aa e Figure D 1 Using SIMATIC MicroComputing over DCOM MicroComputing A5E00077133 01 Using SIMATIC MicroComputing with DCOM D 2 Configuring the Permissions for the Server Computer The DCOM network consists of a server computer where the control engine resides and one or more client computers Windows provides a configuration tool for setting up the network parameters such as security and access privileges For the server application you must specify the user account that will have permission to access or start the application and the user accounts that will be used to run the application This protects your process from unauthorized access Figure D 2 lists the basic tasks required for configuring the server Caution Granting permission to access applications on a computer allows other users to start and stop programs or to access files on your computer Granting unlimited access to everyone on the network could cause problems from either innocent or malicious interference Always limit access to those users who are required to use the applications or files on the computer Configure the default properties for DCOM Configure the permissions for accessing the server Configure the permissions for launching applications on the server Configure the access permissions for the running class
10. F 2 Selecting the Language SIMATIC MicroComputing provides two languages for the software and help German and English The menus and help are displayed in the language selected Use the following procedure to change the language for SIMATIC MicroComputing 1 Select the Simatic gt PC Based Control gt Computing Configuration menu command from the Start menu to display the Computing Configuration dialog box Inthe Computing Configuration dialog box select the Language tab Select the language for the CPU panel German or English See Figure F 1 Click on the Apply button to change the language a fF OO PD Click on the OK button to close the dialog box Computing Configuration x Select the language for the menus and help files of the SIMATIC MicroComputing applications OPC Language Connection Language english deutsch OK Cancel Apply Help Figure F 1 Selecting the Language for the CPU Panel and Help Files MicroComputing A5E00077133 01 Using the Computing Configuration Tool F 2 Accessing the PG PC Interface This tab provides access to the Setting the PG PC Interface dialog box which you use to set up communications across MPI PROFIBUS DP and Ethernet networks 1 Use the Start menu Start gt Simatic gt PC Based Control gt Computing Configuration to open the Computing Configuration tool Figure F 2 2 Click the Connecti
11. value The PCName property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A String that specifies the pathname or identification of the remote computer PC for the connection MicroComputing A5E00077133 01 B 23 Properties and Methods B 36 B 37 B 24 Picture Property Applies to Slider Label This property determines the picture graphic used for the control Syntax object Picture picture The Picture property has these parts Part Description object An object expression that evaluates to an object in the Applies To list picture A picture that determines the image of the object Precision Property Applies to Edit This property is available if the DataFormat is set to Real 6 data type with precision In that case you can change the precision number of digits behind the decimal point of the number The number will be rounded at the specified precision Note The DataFormat property must be set to Real 6 before this property can have an effect Syntax object Precision value The Precision property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value An integer value that defines the precision of the number The default precision is 3 The valid range is from 0 to 7 MicroComputing A5E00077133 01 Properties
12. The Slider control allows you to display and modify process data in a visual format as a sliding indicator You associate the slider with your process by assigning a variable the process value to it You can then adjust the slider indicator in order to modify the process value the slider also changes its indicator position automatically as the variable associated with it changes within the process The Slider control provides access to the memory locations of the control engine Entering a new value in the control changes the data in the control engine Note MicroComputing does not allow you to write to timers Defining How the Data is to be Displayed The General tab of the Properties dialog box Figure 5 19 allows you to define the presentation of the data accessed by the Slider control The fields on the General tab allow you to define the following properties e Style Determine the style standard or graphical for the control e Direction Set the orientation horizontal or vertical of the control See Figure 5 18 e StretchMode Determine the resize mode of the graphical element for the control e Ticks Define the number of interim units between the minimum and maximum values e SmallChange and LargeChange Determine the amount that the value displayed by the Slider control increases or decreases when you press an arrow key SmallChange or press the Page Up and Page Down keys LargeChange e KnobHeight and Kno
13. and click on the Add button Select SYSTEM and click on the Add button Click on the OK button to enter these changes to the Registry Value Permissions dialog box Click on the OK button of the Registry Value Permissions dialog box to enter the changes to the default access permissions The Registry Value Permissions dialog box closes and displays the Distributed COM Configuration Properties dialog box Figure D 4 Add Show Users Members Search Add Users and Groups El List Names From ENm Select the user groups to be allowed N access such as Everyone anes Interactive and System Domain Admins Designatest adm Click on the Add button to add the Domain Guests zomain guest groups to the permission list Domain Users All domain user E Everyone All users gi INTERACTIVE Users accessing this object locally SYSTEM The operating system Add Names Type of Access Allow Access zd OK Cancel Help Figure D 5 Changing the Access Permissions for Users or Groups MicroComputing A5E00077133 01 Using SIMATIC MicroComputing with DCOM Configuring the Permissions for Launching Software on the Server 1 Click on the Edit Default button for Default Launch Permissions to display the Registry Value Permissions dialog box See Figure D 6 2 Click on the Add button to display the Add Users and Groups dialog box and change the securit
14. toolbar button Label Label control description 5 22 toolbar button 5 22 properties Activated Slider control description description events 5 36 MouseUp methods AboutBox B 1 properties BackColor Direction B 13 DisplayValue Enabled Factor B 15 ForeColor B 18 KnobHeight KnobPicture B 19 KnobWidth B 19 LargeChange Locked B 20 Max and Min B 21 RawMin B 27 ScaleMode Index 9 Index ShowMinMax B 30_ SmallChange B 31 StretchMode B 32 properties and methods SoftContainer 6 1 ae ar form 6 2 6 4 iconsl6 Ale 4 6 4 operating mode 6 6 6 8 overview 6 2 6 4 process form 6 4 6 6 sample pogram 1 2HHi 26 4 Software installation installing and uninstalling 3 2 MicroComputing authorization 3 4 3 6 removing the MicroComputing authorization 3 4 13 6 transferring the MicroComputing authorization 3 4 3 6 Software PLC See Control engine Special memory bits addressing A 10 Specifications OLE for Process Control F 5 system requirements 2 3 Spreadsheets sharing data using OPC F 5 StretchMode openi 32 Style property B 33 Switching SoftContainer modes 6 7 System requirements 2 3 T Technical information OLE for Process Control F 5 Text property Third party ActiveX control 2 3 2 4 656 OPC controls F Third party containers E 2 E 4 Ticks property B 34 Timers addr
15. INT MDx DWORD default DINT REAL Special SMx y BOOL default Memory SMBx BYTE default SMBO to SMB29 are SMWx WORD default INT read only SMDx DWORD default DINT REAL MicroComputing A5E00077133 01 Memory Areas of the S7 200 Controllers Table A 2 Addressing S7 200 Data Types and Memory Areas continued Memory Area Address Valid Data Type Timer Tx BOOL or INT WORD read only Zx SIMATIC BOOL or INT WORD Counter i Cx International High speed HCx DWORD default Counter Sx y BOOL default Sequence SBx BYTE default control relays SWx WORD default INT SDx DWORD default DINT REAL Warning Using the timer function improperly or using breakpoints in Visual Basic with MicroComputing can cause problems that could potentially cause your computer or application to crash or lock up Depending on the configuration this could cause the application to lose communication with the control engine This could cause unpredictable process operation which could result in death or serious injury to personnel and or damage to equipment Always install a physical emergency stop circuit for your machine or process Concerning VB timers The Timer function in Visual Basic version 5 allows a timer to interrupt code in progress within the same thread which can cause problems with potentially serious consequences If you use VB timers with MicroComputing observe the f
16. Label If the property has the value 1 Fixed Single the control is surrounded by a rectangular border If the property has the value O wNone no border will be displayed Note This property determines whether the Appearance property has any effect Syntax object BorderStyle value MicroC ti icroComputing B 5 A5E00077133 01 Properties and Methods The BorderStyle property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value or constant that determines the border style as described in settings The settings for value are Setting Description 0 or None Default No border or border related elements 1 or FixedSingle A fixed single line border B 9 Caption Property Applies to Label This property specifies the text that is displayed by the control Syntax object Caption value The Caption property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A String value that specifies the text of the label MicroComputing B 6 A5E00077133 01 Properties and Methods B 10 B 11 Connect Method Applies to Data This method establishes all configured connections Note If your subroutine accesses the Data control programmatically always disconnect from the control engine using a Disconnect method in the Form_Unload subroutine In
17. minimum and maximum of values Syntax object ShowMinMax boolean MicroComputing A5E00077133 01 Properties and Methods The ShowMinMax property has these parts Part object boolean Description An object expression that evaluates to an object in the Applies To list A Boolean expression that specifies whether the control displays the range of values The settings for boolean are Setting True False Description Default The control displays the minimum and maximum vales The control does not display the range of values B 47 SmallChange Property Applies to Slider This property determines how far the indicator moves when the control has focus and you press the up down or right left arrow keys The Value property is increased by SmallChange if you press the right or up arrow key It is decreased by SmallChange if you press the left or down arrow key Syntax object SmallChange value The SmallChange property has these parts Part object value MicroComputing A5E00077133 01 Description An object expression that evaluates to an object in the Applies To list A value or constant that determines the amount of change B 31 Properties and Methods B 48 B 32 StretchMode Property Applies to Button Slider Label This property returns or sets the stretch mode centered resize image resize frame smart tile or tile of the control This property can
18. subroutine with a large interval such as 1 or 2 seconds to allow the objects to be properly instantiated Subsequent timer intervals can be set to shorter intervals MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control Assigning a Variable to a Property of a Control To define a connection in the control engine you assign a variable memory location in the control engine to a property of a control See Figure 4 5 Note MicroComputing does not allow you to write to timers in the control engine Use the following procedure to assign a variable in the control engine to a property of the control 1 On the Connections tab of the Data control select click on the name of the property Figure 4 5 Figure 4 5 shows the property listing with a filter applied to display only the Enabled and Value properties For more information about filtering the property listing see Section 4 5 Siemens SIMATIC DataControl Properties General Engine Connections Events Name Controls Assigned Variable S7Soft1 aj fvoo D s7Datat Browse Button1 Enabled Update rate us 100 Value 1 Button2 Dead band After you select the property from the Edit1 hierarchy enter the memory location of the variable to be assigned to that property E Automatic Add Delete Filter Z Apply f Cancel Apply Help
19. 3 3 Connecting MicroComputing to a Communications Processor 3 6 CP Card MicroComputing A5E00077133 01 3 1 Setting Up the SIMATIC MicroComputing Software 3 1 Installing and Uninstalling the MicroComputing Software The SIMATIC MicroComputing software includes a Setup program that executes the installation automatically Prompts on the screen guide you step by step through the installation procedure Note You must have administrator ADMIN privileges to install the MicroComputing software Starting the Installation Program 3 2 The Setup program guides you step by step through the installation process You can switch to the next step or to the previous step from any position Use the following procedure to install the MicroComputing software 1 Insert the CD ROM in your computer 2 Use the Windows Start menu select the Start gt Run menu command to open the Run dialog box 3 Click on the Browse button on the Run dialog box and select the installation program Setup exe on the CD ROM 4 Click on the Open button to enter the Setup exe program into the Run dialog box 5 Click on the OK button to start the installation program 6 Follow the instructions displayed by the installation program 7 Install the Authorization for MicroComputing See Section 3 2 Once the installation has completed successfully a message to that effect is displayed on the screen MicroComputing A5E000771
20. 3 5 system requirements 2 3 transferring the authorization 3 5 Label control description 5 22 toolbar button 5 22 memory requirements OPC controls server object F 5 operating system i uirements 2 3 options language product overview 2 1 2 8 properties Button 5 2 removing the authorization S7 200 memory areas SIMATIC controls Slider contral desorption 5 28 SoftContainer system ne r transferring the authorization 3 5 Monitoring and modifying data memory areas of S7 200 controllers A 2 MouseDown event MouseMove event MicroComputing A5E00077133 01 Index MouseUp event C 9 PG PC Interface MultipleEngines B 22 accessing through Computing Configuration F 3 configuring the CP card 3 6 N Picture property B 24 Precision property B 24 Name of the OPC server object F 5 Procedures Network communications local and remote client and server D 1 D 21 accessing the OPC server object F 5 a the MicroComputing software 3 5 See also README TXT on the O authorization disk Off the shelf applications OPC controls F 5 adding an authorization 3 5 Offset property B 22 guidelines 3 5 OLE authorizing the software removing an OPC controls F 4 OPC specification SIMATIC controls 4 1 authorization 3 3 authorizing the WinLC software removing an authorization 3 5 Button installing the MicroComputing softwa
21. ANSI key is pressed and released while C 5 the control has the focus KeyUp event Occurs when a key is released while the control has the C 5 focus MouseDown event Occurs when a mouse button is pressed while the mouse C 7 cursor is over the control MouseMove event Occurs when the mouse cursor moves over the control C 8 MouseUp event Occurs when a mouse button is released while the mouse C 9 cursor is over the control MicroComputing A5E00077133 01 User Controls Error Codes for the Edit Control When an error occurs in the Edit control the control generates an Error event Your program can capture this Error event and respond to specific situations Table 5 6 lists the error codes for the Edit control Table 5 6 Error Codes for the Edit Control Error Code C0040002 Description The scaling cannot proceed because of an error in the formula used This error only appears if you are using the Edit control with range scaling In this case it is possible that you have specified a raw value range RawMin RawMax of the length of zero min equal to max This would lead to a division by zero which means the scaling is impossible To correct the error specify a raw value range in which RawMin is not equal to RawMax C0040003 The set value at the Value property is invalid The value which came from the control engine or from a script that is accessing the Value property is not interpretable To correct the err
22. Button Edit Label Slider This event occurs when the value of the Value property changes The control engine can change the value in the Value property Syntax Change C 2 Click Event Applies to Button Edit Label Slider This event occurs when a mouse button is pressed and released while the mouse cursor is over the control Syntax Click Note To distinguish between the left right and middle mouse buttons use the MouseDown and MouseUp events If there is code in the Click event the DbIClick event will never trigger because the Click event triggers first MicroComputing A5E00077133 01 C 1 Events C 3 C 4 C 2 ConnectionError Event Applies to Data This event occurs when an error on a connection occurs Syntax ConnectionError State As Long ConnectedObject As Object _ Property As String Variable As String The ConnectionError event has these parts Part Description State A long value with the state of the connection ConnectedObject An object expression that evaluates to the connected object Property A string value with the name of the property Variable A string value with the name of the connected variable DbIClick Event Applies to Edit Label Slider This event occurs when a mouse button is double clicked while the cursor is over the control Syntax Db1Click Note To distinguish between the left right and middle mouse buttons use the MouseDown and Mo
23. Configure the identity permissions for the running class Figure D 2 Tasks for Configuring the DCOM Server Starting the DCOM Configuration Editor To configure the DCOM server you must run the DCOM configuration tool on the computer that will function as the server Use the following procedure to start the DCOM configuration tool 1 Select the Start gt Run menu command from the Windows Start menu 2 In the Run dialog box enter dcomenfg and click on the OK button The DCOM configuration tool displays the Distributed COM Configuration Properties dialog box MicroComputing A5E00077133 01 D 3 Using SIMATIC MicroComputing with DCOM Configuring the Default Properties for DCOM Communication Use the Distributed COM Configuration Properties dialog box to configure the properties of the computer for DCOM See Figure D 3 1 Click on the Default Properties tab 2 Select the Enable Distributed COM on this computer option 3 4 Set the Default Impersonation Level to the Identify option Set the Default Authentication Level to the Connect option Caution Granting permission to access applications on a computer allows other users such as Everyone to start and stop programs or to access files on your computer Granting unlimited access to everyone on the network could cause problems from either innocent or malicious interference Always limit access to those users who are required to use th
24. Data Control Reading an Array in the Control Engine Table 4 8 provides sample Visual Basic code for using the ReadVariable method of the Data control to read an array of data in the control engine Table 4 8 Sample Program for Reading an Array of Variables Visual Basic Code Private Sub ReadArrayOfReals Dim rc As Long Dim name_s As String Dim value_v As Variant Dim state_1 As Long Dim timeout_1l As Long Randomize Read an array of Real floating point values name_s MDO Real 3 timeout_1l 0 re S7Datal ReadVariable name_s value_v state_1 timeout_1 Display the values and return codes for the array in a List Box ListBox1 Clear ListBoxl AddItem Return Code amp Hex rc ListBox1 AddItem name_s amp amp value_v 0 amp amp value_v 1 amp value_v 2 ListBox1 AddItem State amp Hex state_1 End Sub Writing an Array to the Control Engine Table 4 9 provides sample Visual Basic code for using the WriteVariable method of the Data control to write an array of data to the control engine MicroComputing 4 22 A5E00077133 01 Accessing the Process Data with the Data Control Table 4 9 Sample Program for Writing an Array of Variables Visual Basic Code Private Sub WriteArrayOfReals Dim rc As Long Dim name_s As String Dim timeout_1l As Long Dim value_b 2 As Byte for byte write Dim value_w 2 As Integer for wor
25. Disconnect method B 13 DisplayValue property Distributed applications DCOM configuring server and E Distributed Component Object Model DCOM client and server D 1 E Edit control MouseUp C 9 methods AboutBox B 1 properties Alignment B 2 Appearance BackColor BorderStyle DisplayValue B 14 Enabled B 15 Factor Font B 18 ForeColor B 18 Index 4 Locked B 20 Max and Min B 21 Offset B 22 Precision B 24 RawMax B 27 RawMin B 27 ScaleMode Text Value WriteMode B 37 WriteNow method B 38 Zeropad B 40 properties and methods 5 18 toolbar button 5 12 Emergency stop circuit Enabled property B 15 English changing to F 2 Error codes Data control 4 27 Edit control 5 21 Error event Event table sample program 4 14 Events adding to Data control 4 11 Button control 5 11 Change C 1 Click C 1 ConnectionError Data control DbIClick C 2 Edit control 5 20 Error C 3 KeyDown C 4 KeyPress C 5 KeyUp C 5 Label control 5 27 MouseDown C 7 MouseMove MouseUp C 9 sample program 4 15 Slider control 5 36 ValueChanged C 10 MicroComputing A5E00077133 01 Index Examples connection table program 4 12 custom ActiveX control E 6 E 9 event response program 4 15 event table program 4 14 I O panel 1 4 Microsoft Excel 1 16 other controls VBScrollbar read write Boolean da
26. Figure 4 9 shows an sample event that has been added A change in the value of M17 3 calls the event handler for the Data control The input to the event handler is the text string OverflowWarning Deleting an Event To delete a user specified event expand the list under Keys select the desired event and click on the Delete button MicroComputing A5E00077133 01 4 11 Accessing the Process Data with the Data Control 4 7 Creating a Connection Table The Data control uses a connection table for determining which properties of the various controls are connected to specific memory locations of the control engine Each connection table contains an entry for each connection Each entry contains the following information e Property name this field identifies the property that has an assigned variable e Data source this field identifies the memory location in the control engine for the connection e Update rate this field defines the update rate for the connection If no value is entered in this field the Data control uses the default update rate which is the value stored in the DefaultUpdateRate property e Dead band this field defines the dead band for automatically writing to the control engine or the control If no value is entered in this field the Data control uses the default update rate which is the value stored in the DefaultDeadBand property When you use the Properties dialog box to configure the Data con
27. General OLE failure 0x8007000E Out of available memory 0x80070057 Invalid variable syntax 0xC 0040004 Invalid or unknown data type 0xC0040007 Invalid variable type 0xC0040008 Invalid syntax for the item definition 0xC004000B Value passed to WRITE is out of range MicroComputing A5E00077133 01 4 27 MicroComputing A5E00077133 01 User Controls Chapter Overview MicroComputing SIMATIC MicroComputing provides ActiveX User controls for accessing process data The Properties dialog box of the Data control establishes a connection between the user control and the control engine The properties dialog box of each control defines the performance of the control e Button control allows you to turn individual bits of memory on and off e Edit control provides access to the memory locations of the control engine e Label control allows you to display a constant string e Slider control provides an interface for monitoring and modifying analog variables Section Description Page 5 1 Connecting the User Controls to the Process Data 5 2 5 2 Configuring the Property Pages of the Button Control 5 4 5 3 Configuring the Property Pages of the Edit Control 5 12 5 4 Configuring the Property Pages of the Label Control 5 22 5 5 Configuring the Property Pages of the Slider Control 5 28 A5E00077133 01 5 1 User Controls 5 1 5 2 Connecting the User Controls to the Process Dat
28. Object field 4 For the S7Data1_ValueChanged event enter the following program Select Case Property Case QBO Worksheets Sheet1 Range B1 Value Value Case QB1 Worksheets Sheet1 Range B2 Value Value Case QB2 Worksheets Sheet1 Range B3 Value Value End Select 5 Close the Code window for the Data control and close UserForm1 Running the Sample Program 1 Select the File gt Close and Return to Microsoft Excel menu command to return to the spreadsheet 2 Exit Design mode by clicking on the Exit Design Mode icon in the Toolbox window 3 Connect the Excel spreadsheet to the control engine by clicking on the Start Counting command button 4 Use the sample I O panel see Section 1 2 to start and stop the sample program in the control engine Note To exit Excel or to activate the Excel menus you must first close UserForm1 MicroComputing A5E00077133 01 1 19 Getting Started with SIMATIC MicroComputing 1 5 Using the SoftContainer with the Sample Program MicroComputing provides a simple OLE container application SoftContainer for displaying and modifying the data from the control engine Using this container you can quickly insert the SIMATIC controls into a process form A process form is the SoftContainer document or file with the various controls No code can be written with this tool In order to run this sample process form y
29. Properties dialog box Add Show Users Members Search Add Users and Groups x MSE is Select the user groups to be allowed access such as Everyone Interactive and System Click on the Add button to add the Names 2 Domain Admins Designated 2 Domain Guests All deiiain guest groups to the permission list Domain Users All domain users E Everyone All users gi INTERACTIVE Users accessing this object locally SYSTEM The operating system Add Names Type of Access Allow Access zd OK Cancel Help Figure D 7 Changing the Launch Permissions for Users or Groups MicroComputing A5E00077133 01 Using SIMATIC MicroComputing with DCOM Configuring the Properties for the Running Class Use the following procedure to configure the properties of the running class for the server 1 Click on the Applications tab of the Distributed COM Configuration Properties dialog box See Figure D 8 Select Running Class from the list of applications Click on the Properties button to display the Running Class Properties dialog box Distributed COM Configuration Properties 2 x Applications Default Properties Default Security Default Protocolg Applications Running Class S7Soft Document OPC Server Select Running Class and click on the Properties button to configure the properties of the running class Properti
30. ReadMultiVariables and WriteMultiVariables methods Table 4 12 provides a sample program for reading and writing arrays of Boolean data using the ReadMultiVariables method and the WriteMultiVariables method Table 4 12 Reading and Writing Boolean Data Visual Basic Code Private Sub Read_Booleans Dim mybools 7 As String Dim vals_v As Variant Dim states_v As Variant Dim rc As Long mybools 0 m0 0 mybools 1 m0 1 mybools 2 m0 2 mybools 3 m0 3 mybools 4 m0 4 mybools 5 m0 5 mybools 6 m0 6 mybools 7 m0 7 rc S7Datal ReadMultiVariables mybools vals_v states_v End Sub Private Sub Write_Booleans Dim mybools 7 As String Dim myvals 7 As Variant Dim states_v As Variant Dim rc As Long mybools 0 m0 0 mybools 1 m0 1 mybools 2 m0 2 mybools 3 m0 3 mybools 4 m0 4 mybools 5 m0 5 mybools 6 m0 6 mybools 7 m0 7 myvals 0 False myvals 1 False myvals 2 False myvals 3 False myvals 4 False myvals 5 False myvals 6 False myvals 7 False re S7Datal WriteMultiVariables mybools myvals states_v End Sub MicroComputing A5E00077133 01 4 25 Accessing the Process Data with the Data Control 4 11 4 26 Properties Methods and Events of the Data Control You use the properties and methods listed in Table 4 13 to manipulate the Data control T
31. Select click on the third party or custom control Siemens S7DataControl L Siemens_SIMATIC_UserControls ButtZ Select the check box to add the control to the toolbar of the SoftContainer Click on the OK button to insert the Third Party Control control 1 Add control to toolbar Cancel Figure 6 4 Inserting a Third Party Control into the Process Form Configuring the Data Control Before you can connect to the control engine you must configure the Data control for communicating with a control engine To configure the Data control see Chapter 4 MicroComputing A5E00077133 01 6 5 Designing Process Forms with the SoftContainer 6 3 Switching from Design Mode to Run Mode When you switch the SoftContainer from Design mode to Run mode you connect the controls to the control engine These operating modes define the operation of the SoftContainer only and do not apply to the operating modes for the control engine Warning After you connect a SIMATIC or a third party control to your process data by assigning a variable to its Value property any changes that you make to the value displayed in the control are immediately applied to your process data Altering process data can cause unpredictable equipment operation which could result in death or serious injury to personnel and or damage to equipment Do not perform the exercises in this chapter when your control engine is co
32. String ControlTable ControlTable ControlTable ControlTable 0 1 2 3 Define a connection table for Labell Caption Property MW2 WORD Source memory location 100 Update rate 0 0 Dead band Attach the connection table to S7Datal S7Datal ConnectObject Labell ControlTable MicroComputing A5E00077133 01 Connect to the control engine S7Datal Connect Connects to the control engine 4 13 Accessing the Process Data with the Data Control Creating a Sample Event Table You can also create an event table to define events for the control engine The event table corresponds to the Events tab of the Properties dialog box of the Data control Table 4 2 provides the sample Visual Basic code for creating an event table Section 4 8 provides a sample program that responds to events This sample program uses an event table to define the events for control engine Table 4 2 Sample Program for Manually Creating an Event Table Visual Basic Code Dim controlTable 4 AS String Define the event keys ControlTable 0 M0_0 ControlTable 1 M0 0 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_1 ControlTable 1 M0 1 ControlTable 2 500 ControlTable 3 0 I
33. TrueColor property has these parts Part object color Description An object expression that evaluates to an object in the Applies To list A value or constant that determines the background or foreground colors of an object as described in Settings The settings for value are Setting Standard Colors Windows System Colors Description Colors specified by using the RGB Color palette Colors specified by system color constants depending on the container for example colors listed in the Visual Basic VB object library in the Object Browser B 54 TruePicture Property Applies to Button This property returns or sets the active on true etc picture displayed on the control Syntax object TruePicture picture The TruePicture property has these parts Part object picture MicroComputing A5E00077133 01 Description An object expression that evaluates to an object in the Applies To list A picture that determines the image of an object B 35 Properties and Methods B 55 Value Property Applies to Button Edit Slider This property should be linked to a value in the control engine using the Data Control It is bindable Edit Control The Value property is a a variant which returns sets the unscaled value of the control Button Control The Value property reflects the state of the button Slider Control The Value property reflects the position of the Slider Cont
34. You can access the counter bit or current value word High Speed Counters HC International and SIMATIC You can use high speed counters to count very high speed events independent of the controller scan The current value of the high speed counter is a double word read only value Sequence control relays SCR S International and SIMATIC You can use S bits to organize machine operations or steps into program segments You can access S memory bits as bits bytes words or double words MicroComputing A5E00077133 01 Memory Areas of the S7 200 Controllers A 2 Accessing the Data in the S7 200 Micro PLC The S7 200 Micro PLC stores information in different memory locations that have unique addresses You can explicitly identify the memory address that you want to access This allows your program to have direct access to the information Using the Memory Address to Access Data To access a bit in a memory area you specify the address which includes the memory area identifier the byte address and the bit number Figure A 1 shows an example of accessing a bit which is also called byte bit addressing In this example the memory area and byte address I input and 3 byte 3 are followed by a period to separate the bit address bit 4 I3 4 MSB LSB 76543210 Bit of byte or bit number bit 4 of 8 0 to 7 I 0 Period separates the by
35. a time out error Not applicable for this release For the current release this value should always be 0 A Long value that indicates whether an error has occurred The result is zero if no error occurs MicroComputing A5E00077133 01 Properties and Methods B 44 ScaleMode Property Applies to Edit Slider This property specifies the scaling mode to be used for scaling values The values can also be specified at the Scaling property tab If you choose to use scaling there are two choices for scaling mode e Scaling by formula 1 wByFormula Value Factor Offset DisplayValue where Value is similar to the contents of the Value property if the control is connected to the control engine Factor is the value of the Factor property Offset is the value of the Offset property and DisplayValue is the contents of the Text property e Scaling by range transformation 2 wByRange you specify a source range of control engine values and a destination range of displayed values and the values of the one range are transformed to the other range Note The Scale Mode property determines whether the RawMax RawMin Factor and Offset properties have any effect Syntax object ScaleMode value The ScaleMode property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value or constant that determines the kind of scaling The settings
36. access the data stored in the control engine Note As used by the MicroComputing software the term control engine applies to a processor that manages and manipulates data which is used to control a process or machine such as an S7 200 CPU 222 Audience This manual is intended for engineers programmers and maintenance personnel who have a general knowledge of S7 200 programmable logic controllers PLCs Scope of the Manual This manual describes the features and the operation of version 1 0 of the SIMATIC MicroComputing software How to Use This Manual This manual provides information focused for different audiences If you plan to use the ActiveX OCX controls in a container application such as Visual Basic refer to Getting Started Chapter 1 and Product Overview Chapter 2 To use the controls in Computing SoftContainer refer to Designing Process Forms with the SoftContainer Chapter 6 Chapter 3 describes how to install MicroComputing Chapters 4 and 5 explain how to configure the SIMATIC controls Appendix B describes the properties and methods for the controls and Appendix C describes the events MicroComputing te A5E00077133 01 Ul Preface Other Manuals You can find information in the online help for the MicroComputing software For additional information refer to the following manuals Title Content S7 200 Programmable This manual provides basic information about installing and Contro
37. an error is reported ControlEngine Property Applies to Data This property stores the pathname or identification of the control engine connected to the control Syntax object ControlEngine value The ControlEngine property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A String that specifies the pathname or identification of the control engine to be accessed by object DataFormat Property Applies to Edit This property defines the storage type used for converted values If you are using a data format for displaying a value which is too large the value will be truncated Note This property determines whether the Precision property has any effect Syntax object DataFormat value MicroComputing A5E00077133 01 Properties and Methods The DataFormat property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value or constant that determines the data format as described in Table B 1 Table B 1 Settings for the Data Format Property Constant Setting Description wBoolean 0 Bit value wBinary 1 Any BIT BYTE WORD DWORD INT or DINT value wOctal 2 Any BYTE WORD DWORD INT or DINT value wHexadecimal 3 Any BYTE WORD DWORD INT or DINT value wUnsignedDecimal 4 Any BYTE WORD DWORD INT or DINT value wS
38. and Methods B 38 PropertyChangedName Method Applies to Data This method notifies the Data control that the value of a property of a connected control referenced by the name of the object in the form has changed The Data control reads the value from the property and writes it to the data source Note A programmer who uses Visual Basic or a similar programming language would use the PropertyChangedName method while a programmer who uses Visual C or a similar programming language would use the PropertyChangedObject method Syntax result object PropertyChangedName ConnectedObject Property The PropertyChangedName method has these parts Part Description object An object expression that evaluates to an object in the Applies To list result A long value that indicates whether an error has occurred The result is zero if no error occurs ConnectedObject A String expression that evaluates to the name of the connected control whose property has changed Property A String value with the name of the property that has changed B 39 PropertyChangedObject Method Applies to Data This method notifies the Data control that the value of a property of a connected control an object which was declared in the program has changed The Data control reads the value from the property and writes it to the data source Note A programmer who uses Visual Basic or a similar programming language would use the Prope
39. and Paper O Food Textiles O Instrument and Control Transportation Non electrical Machinery O Other g Petrochemical MicroComputing A5E00077133 01 Remarks Form Your comments and recommendations will help us to improve the quality and usefulness of our publications Please take the first available opportunity to fill out this questionnaire and return it to Siemens Please give each of the following questions your own personal mark within a range from 1 very good to 5 very poor Do the contents meet your requirements Is the information you need easy to find Is the text easy to understand Does the level of technical detail meet your requirements Or aS OO Nee Please rate the quality of the graphics and tables Additional comments MicroComputing 2 A5E00077133 01
40. be 6 XY Returns a number that specifies the current location of the mouse pointer MicroComputing A5E00077133 01 C 9 Events C 12 C 10 ValueChanged Event Applies to Data This event occurs when the value of a connected variable changes and no connected event was specified on the call to the Connect method A ValueChangedEvent can also be configured using the Events Property Tab Syntax ValueChanged Property As String Variable As String Value as _ Variant Quality as Integer The ValueChanged event has these parts Part Description Property A string value with the name of the property Variable A string value with the name of the connected variable Value A variant with the new value of Variable Quality Returns an integer with the quality of the new value MicroComputing A5E00077133 01 Using SIMATIC MicroComputing with D DCOM Chapter Overview SIMATIC MicroComputing allows you to communicate across networks using the Microsoft Distributed Component Object Model DCOM You can use DCOM to integrate distributed applications by way of a network A distributed application consists of multiple processes or different computers that cooperate to accomplish a single task DCOM is a set of Microsoft concepts and program interfaces in which client program objects can request services from server program objects on other computers in a network The Component Object Model COM provides a set of interfaces that al
41. by B 19 the control KnobPicture property Determines the graphical element picture to be B 19 used as the indicator for the control KnobWidth property Determines the width of the indicator displayed by the B 19 control LargeChange property Determines how far the slider indicator moves when B 20 the control has focus and you press the Page Up or Page Down key Locked property Sets the control to a read only state By default the B 20 control is not in locked mode so the user can enter numbers Max property Returns sets the maximum scaled value of the control B 21 if the ScaleMode property is wByRange or wScaleNone Min property Returns sets the minimum scaled value of the control B 21 if the ScaleMode property is wByRange or wScaleNone Offset property Specifies the offset used when the scale by formula B 22 option has been enabled used with ScaleMode property Picture property Determines the graphical element picture to be B 24 used for the control RawMax property Determines the maximum raw value of the control if B 27 the ScaleMode property is set to wByRange RawMin property Defines the lower value of the source range for B 27 scaling a value The ScaleMode property must be set to wByRange ScaleMode property Specifies the scaling mode to be used for scaling B 29 values ShowMinMax property Specifies whether the control displays the range B 30 minimum and maximum of values Style property Determines the style standard o
42. container which includes the following elements e The toolbar contains buttons for accessing common functions such as for opening a process form or for cutting and pasting It also contains the icons for the SIMATIC controls provided by MicroComputing e The toolbar also contains a field that contains the name of the selected control You can use the drop down list box to select the controls in the process form e The status bar contains information about the operating mode of S7Soft container Design or Run The status bar also provides information about which control has been selected including its size and location within the process form e A default process form S7Soft1 to contain the controls E S7SoftContainer S7Soft1 An empty process form Displays the name of the named S7Soft1 selected control Allows you to select a specific control from a list of controls in the process form Status bar Ready Design Figure 6 1 Container with the Default Process Form MicroComputing A5E00077133 01 Designing Process Forms with the SoftContainer Using the Snap Grid and the Status Bar The container provides a snap grid to help position or size the controls As shown in Figure 6 2 the status bar provides information about the selected control e Position information The status bar shows the current coordinates of the snap grid for the con
43. could cause unpredictable process operation which could result in death or serious injury to personnel and or damage to equipment Always install a physical emergency stop circuit for your machine or process Concerning VB timers The Timer function in Visual Basic version 5 allows a timer to interrupt code in progress within the same thread which can cause problems with potentially serious consequences If you use VB timers with MicroComputing observe the following guidelines e Always kill disable the timers in the Form_Unload subroutine Otherwise a timer can trigger an event while the VB program is shutting down this condition could cause your computer or your application to crash lock up or to continue running invisibly e f you start your timer in the Form_Load subroutine the timer event could occur before the other objects have been instantiated In order to ensure that the objects have been properly instantiated always start a timer in the Form_Load subroutine with a large interval such as 1 or 2 seconds to allow the objects to be properly instantiated Subsequent timer intervals can be set to shorter intervals MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control Reading a Single Variable in the Control Engine Table 4 6 provides sample Visual Basic code for using the ReadVariable method of the Data control to read a single variable in the control engine Table 4 6 Reading a Sing
44. does not support the PC PPI cable If you are running MicroComputing on a computer with Windows NT you must use a CP card Refer to Section 3 3 for directions on configuring the CP card as the access point for MicroComputing MicroComputing A5E00077133 01 2 3 Product Overview 2 2 Using an ActiveX Control to Access the Process Data MicroComputing provides access through the Data control to the process data being controlled by an S7 200 control engine You can use the standard SIMATIC controls provided with the MicroComputing software see Table 2 1 or you can connect any other ActiveX control to the Data control MicroComputing does not allow you to write data to timers You can only read the timer values Table 2 1 Standard Controls Provided by MicroComputing Control Representation Description The Data control provides the connection to the t S7 200 control engine Without the Data control eal none of the other controls have access to the process data Data Button The Button control provides access to individual memory bits in the control engine The Button control accesses only bits and has two values e Off 0 default color red e On 1 default color green Changing the state of the Button control changes the state of the variable in your process that is associated with the control If you configure the Button control to be read only then it functions like a lamp or LED If you configure the butto
45. entered as part of the counter instruction You access both of these variables by using the counter address C counter number Access to either the counter bit or the current value is dependent on the instruction used instructions with bit operands access the counter bit while instructions with word operands access the current value As shown in Figure A 6 the Normally Open Contact instruction accesses the counter bit while the Move Word MOV_W instruction accesses the current value of the counter For more information about the S7 200 instruction set see the S7 200 Programmable Controller System Manual Format C counter number c20 MicroComputing A5E00077133 01 A 11 Memory Areas of the S7 200 Controllers c3 Counter Bits Current Value Read Write ias Counter number bit address co Co Area identifier counter C1 C1 C2 C2 C3 cs I2 1 MOV_W MSB Current Value tsp Counter EN ENO 15 Read Write o Bits Co Co c3 IN OUT vw200 C1 C1 C2 Wes Counter number C2 C current value address aac 3 Area identifier counter Figure A 6 Accessing the SIMATIC Counter Data Addressing the High Speed Counters HC High speed counters are designed to count very high speed events independent of the CPU scan High speed counters have a signed 32 bit integer counting value or current value To access the count value for the high speed counte
46. for value are Setting Description wNoScaling 0 Default No scaling wByFormula 1 Use the formula containing the factor and offset to scale the value wByRange 2 Use the range transformation method to scale the value MicroComputing A5E00077133 01 B 29 Properties and Methods B 45 B 46 B 30 ShowErrorBoxes Property Applies to Data This property specifies whether to display the default error boxes when there is a user generated error Every time an error occurs an Error event will be generated If the ShowErrorBoxes property is enabled selected a default error message box will be displayed All errors on connections are reported by the Connection Error event Note MicroComputing provides error messages in English only If you want to display messages in other languages you must disable deselect the ShowErrorBoxes option and write program code to react to an error return code Syntax object ShowErrorBoxes value The ShowErrorBoxes property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A Boolean expression that specifies whether the control displays error boxes The settings for value are Setting Description True Default The control shows the default error boxes False The error boxes are hidden ShowMinMax Property Applies to Slider This property specifies whether the control displays the range
47. informs you of this If you want to install the authorization use the AUTHORSW program on the authorization diskette This program allows you to display install and remove authorizations Removing an Authorization If you should need to repeat the authorization for example if you want to reformat the drive on which the authorization is located you must remove the existing authorization first You need the original authorization diskette to do this Use the following procedure to transfer the authorization back to the authorization diskette 1 Insert the original authorization diskette in your floppy disk drive 2 Start the program AUTHORSW EXE from the authorization diskette 3 From the list of all authorizations on drive C select the authorization to be removed 4 Select the menu command Authorization gt Transfer 5 In the dialog box enter the target floppy drive to which the authorization will be transferred and confirm the dialog box 6 The window with the list of authorizations remaining on the drive is then displayed Close the AUTHORSW program if you do not want to remove any more authorizations You can then use the diskette again to install an authorization You must use the authorization diskette to remove any existing authorizations If you need to remove MicroComputing completely you must remove the DP authorization If a fault occurs on your hard disk before you can back up the authorization contact y
48. object library in the Object Browser B 24 FalsePicture Property Applies to Button This property returns or sets the inactive off false etc picture displayed on the control Syntax object FalsePicture picture The FalsePicture property has these parts Part Description object An object expression that evaluates to an object in the Applies To list picture A picture that determines the image of an object MicroC ti icroComputing B 17 A5E00077133 01 Properties and Methods B 25 B 26 B 18 Font Property Applies to Button Edit Label This property returns a Font object for the main font of the control Syntax object Font font The Font property has these parts Part Description object An object expression that evaluates to an object in the Applies To list font A value that returns or sets the font used for the control ForeColor Property Applies to Button Edit Label Slider This property returns or sets the foreground color used to display text and graphics in an object Syntax object ForeColor color The ForeColor property has these parts Part Description object An object expression that evaluates to an object in the Applies To list color A value or constant that determines the foreground colors of object The settings for color are Setting Description Standard Colors Colors specified by using the RGB Color palette Windows System Colors specified by system color const
49. of the keys are pressed For example if both CTRL and ALT were pressed the value of shift would be 6 XY Returns a number that specifies the current location of the mouse pointer MicroComputing A5E00077133 01 C 7 Events C 10 C 8 MouseMove Event Applies to Button Edit Label Slider This event occurs when the mouse cursor moves over the control Syntax MouseMove short Button short Shift OLE_XPOS PIXELS x _ OLE_YPOS_PIXELS y The MouseMove event has these parts Part Description Button An integer that identifies the button that was pressed to cause the event The button argument is a bit field with bits corresponding to the left button bit 0 right button bit 1 and middle button bit 2 These bits correspond to the values 1 2 and 4 respectively Only one of the bits is set indicating the button that caused the event Shift An integer that corresponds to the state of the SHIFT CTRL and ALT keys when the button specified in the button argument is pressed or released A bit is set if the key is down The shift argument is a bit field with the least significant bits corresponding to the SHIFT key bit 0 the CTRL key bit 1 and the ALT key bit 2 These bits correspond to the values 1 2 and 4 respectively The shift argument indicates the state of these keys Some all or none of the bits can be set indicating that some all or none of the keys are pressed For example if both CTRL and
50. provides an open and effective communication architecture which concentrates on data access and not the types of data Application Application X Y OPC Client Interface OPC Client Interface E S P E OPC Server Optional MicroComputing OPC Server A OPC Server C Figure F 3 Applications Working with Many OPC Servers MicroComputing A5E00077133 01 Using the Computing Configuration Tool MicroComputing A5E00077133 0 Your OPC client connects to the OPC server object provided as an option by MicroComputing This connection allows you to create and manipulate OPC group objects which organize the data to be accessed You can activate or deactivate a group as a unit or you can subscribe to the list in a group of items so that you can be notified when the data change A group is a collection of items like MBO Figure F 4 shows the connection from the OPC client application through the optional MicroComputing OPC server to the process data Third party OPC client application OPCServer MicroComputing 7 200 Control engine Figure F 4 Using the Optional OPC Server to Access Your Process Data To access the OPC server and its contents you must provide your OPC client with the name ProgID or programmatic identifier of the server object The name of the OPC server object that is provided as an option by MicroC
51. the Computing Container Type the new name in the Control Name field and click on Apply or OK The new name appears in the Select Control list in the toolbar To open the control Properties dialog box double click on the desired control Siemens_SIMATIC_UserControls Button Properties Figure 5 7 Button Control Properties Name Tab MicroComputing A5E00077133 01 5 9 User Controls Properties and Methods of the Button Control Use the properties and methods listed in Table 5 1 to manipulate the Button control Table 5 1 Properties and Methods of the Button Control Property or Method Description Page AboutBox method Displays the About message box for the control B 1 Alignment property Determines the alignment of the text B 2 Appearance property Determines if the control is displayed with 3D effects B 3 BorderStyle property Selects the border style fixed single or none B 5 Enabled property Determines whether the control reacts to changes of B 15 the Value property and fires events FalseCaption property Determines the text that is displayed in the control B 16 when the Value property is False equal to 0 or Off FalseColor property Determines the color of the control when the Value B 17 property is False equal to 0 or Off FalsePicture property Determines the graphic element that is displayed by B 17 the control when the Value property is Fals
52. to display the Control toolbox 4 Click on the Design Mode icon in the Control toolbox to put the spreadsheet into Design mode 5 Insert a Command Button control onto the spreadsheet by clicking on the Command Button icon in the Control toolbox and then clicking the left mouse button in an empty area of the spreadsheet 6 Move or size the Command Button control as required MicroComputing A5E00077133 01 Getting Started with SIMATIC MicroComputing Using the Visual Basic Editor to Configure the Command Button After you have created the command button you use the Visual Basic Editor in Excel to configure the command button for starting and stopping the program Use the following procedure to configure the command button 1 2 Select the command button CommandButton1 Select the Tools gt Macro gt Visual Basic Editor menu command to display the Visual Basic editor In the Properties window select the Caption property of CommandButton1 and enter the following caption Start Counting Display the Code window by selecting the View gt Code menu command Select CommandButton1 from the drop down list for the Object field Enter the following code for the CommandButton1_Click event UserForm1 show Close the Code window for CommandButton1 Creating a SIMATIC Data Control 1 2 Create a new user form by selecting the Insert gt UserForm menu command In the Toolbox window click the righ
53. to monitor or to modify the values stored in the control engine To return to Design mode click on the Design button E S7SoftContainer S7Soft1 Click on the Run button to change to Run mode Figure 6 5 Changing the Container to Run Mode MicroComputing A5E00077133 01 6 7 Designing Process Forms with the SoftContainer 6 4 6 8 Saving Your Process Form You can save the process forms you create under any name in any directory that is convenient Use the following procedure to save your process form 1 Select the File gt Save As menu command to display the Save As dialog box See Figure 6 6 2 Enter the name for the process form 3 Choose a directory for storing the process form The default directory for storing process forms is in the MicroComputing directory WinCP 4 Click on the Save button Save As Save in GJ wince Enter the name for the process form File name S7Soft1 Save Save as type S7Soft Files ctr gt Cancel Figure 6 6 Saving a Process Form for MicroComputing MicroComputing A5E00077133 01 Memory Areas of the S7 200 Controllers Overview A SIMATIC MicroComputing provides access to the process data within the control engine Using the Data control you identify the memory area to be accessed For more information about S7 200 memory areas refer to the S7 200 Programmab
54. transmit a changed value for that bit Syntax object DefaultDeadBand value The DefaultDeadband property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value of the type Single which must not be negative DefaultUpdateRate Property Applies to Data This property allows you to specify the update rate used by the Data control if no update rate is specified in the connection table Syntax object DefaultUpdateRate value The DefaultUpdateRate property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value of type Long The settings for value are MicroComputing A5E00077133 01 Properties and Methods Part Description 0 All changes of the connected variable are reported immediately gt 0 Changes of the connected variable are reported after this timeout B 17 Direction Property Applies to Slider This property sets the orientation horizontal or vertical of the SIMATIC control Default is 0 wHorizontal Syntax object Direction value The Direction property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value or constant that determines the orientation The settings for value are Setting Description 0 Default wHorizontal 1 wVertical B 18 Disconn
55. word value as shown in Table A 2 Data in other memory areas such as T C HC and the accumulators are accessed by using an address format that includes an area identifier and a device number MicroComputing A5E00077133 01 A 5 Memory Areas of the S7 200 Controllers A 6 Note MicroComputing does not allow you to write to timers Table A 2 Addressing S7 200 Data Types and Memory Areas Memory Area Address SIMATIC International Ex y Ixy a Valid Data Type BOOL default EBx SIMATIC IBx International BYTE default input EWx SIMATIC WORD default INT IWx International EDx SIMATIC DWORD default DINT REAL IDx International Analog Input AEWx SIMATIC WORD default INT Analog input available read only AIWx International for all models except CPU 221 Ax y SIMATIC BOOL default Qx y International ABx SIMATIC BYTE default QBx International Output AWx SIMATIC QWx International WORD default INT ADx SIMATIC QDx International DWORD default DINT REAL Analog Output AAWx SIMATIC WORD default INT Analog output write only AQWx International available for all models except CPU 221 Vxy BOOL default Variable VBx BYTE default Memory VWx WORD default INT VDx DWORD default DINT REAL Mx y BOOL default MBx BYTE default Bit M Aen MWx WORD default
56. 00077133 01 User Controls Scaling by Formula If you choose to scale by formula 1 wByFormula enter the following information e Factor represents a percentage of change scaling factor from the value in the control engine to the value in the Edit control e Offset represents a fixed value to be added to the scaled result before being displayed The Edit control uses the following formula to calculate the scaled value Value x Factor Offset Display Value where Value the value stored in the control engine Factor the scaling factor Offset the offset factor Display Value the value displayed in the Edit control When the Edit control writes data to the control engine the inverse of the formula is used to scale the value Scaling by Range If you choose to scale by range transformation 2 wByRange specify the upper RawMax and lower RawMin values for a source range for the value in the control engine and for a destination range for the value displayed in the Edit control or Display The Edit control then transforms the value from one range into the equivalent value for the other range These ranges define only the relationship between the data in the control engine and the data in the Edit control if the value is above or below the ranges entered for the transformation the transformation uses the formula to extrapolate the scaled value The upper and lower limits are not minimum and maximum values fo
57. 0_2 ControlTable 1 M0 2 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_3 ControlTable 1 M0 3 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_4 ControlTable 1 M0 4 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_5 ControlTable 1 M0 5 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_6 ControlTable 1 M0 6 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_7 ControlTable 1 M0 7 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand End MicroComputing A5E00077133 01 Accessing the Process Data wit
58. 0xC0040016 Value out of range wEDIT_WRONGVALUE 0xC0040017 A wrong value has been set wBIGFONT 0xC0040018 Warning Font size is too big wPREC_RANGE 0xC004001A Precision Must be a number between 0 and 7 MicroComputing A5E00077133 01 C 3 Events C 6 C 4 KeyDown Event Applies to Button Edit Slider This event occurs when the user presses a key while the control has the focus See also the KeyUp Event Syntax KeyDown long Key D long Shift The KeyDown event has these parts Part Description KeyID Key code such as vbKeyF1 the F1 key or voKeyHome the HOME key To specify key codes use the constants in the Visual Basic VB object library in the Object Browser Shift An integer that corresponds to the state of the SHIFT CTRL and ALT keys at the time of the event The shift argument is a bit field with the least significant bits corresponding to the SHIFT key bit 0 the CTRL key bit 1 and the ALT key bit 2 These bits correspond to the values 1 2 and 4 respectively Some all or none of the bits can be set indicating that some all or none of the keys have been pressed For example if both CTRL and ALT are pressed the value of shift is 6 Use the KeyDown and KeyUp event procedures if you need to respond to both the pressing and releasing of a key KeyDown and KeyUp interpret the uppercase and lowercase of each character by means of two arguments keycode which indicates t
59. 133 01 A 9 Memory Areas of the S7 200 Controllers Addressing the Special Memory SM Bits The SM bits provide a means for communicating information between the CPU and your program You can use these bits to select and control some of the special functions of the S7 200 such as e A bit that turns on for the first scan cycle e Bits that toggle at fixed rates e Bits that show the status of math or operational instructions For more information about the SM bits see the Appendix on SM bits in the S7 200 Programmable Controller System Manual While the SM area is based on bits you can access the data in this area as bits bytes words or double words Format Bit SM byte address bit address SMO 1 Byte Word Double Word SM size starting byte address SMB86 Addressing the Timer T Memory Area In the S7 200 timers are devices that count increments of time The S7 200 timers have resolutions time base increments of 1 ms 10 ms or 100 ms There are two variables that are associated with a timer e Current value this 16 bit signed integer stores the amount of time counted by the timer e Timer bit this bit is set or cleared as a result of comparing the current and the preset value The preset value is entered as part of the timer instruction You access both of these variables by using the timer address T timer number Access to either the timer bit or the current value is dependent on the instruction used instruct
60. 200 Figure 4 1 Using the Data Control for Connecting to a Control Engine MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control 4 2 Configuring the Connection Properties for the Data Control As shown in Figure 4 2 the General tab allows you to configure the following parameters for the connection to the control engine e AutoConnect automatic connection When this option is enabled the Data control automatically connects to the memory locations in the control engine When this option is disabled the Data control connects to the memory locations only when instructed by the program code using a Connect method that you associated with the control e AutoConnect Timeout time out in milliseconds for the automatic connection This option specifies the amount of time that the Data control waits between connecting to the control engine and writing data Some containers may not provide a mechanism for telling the Data control to write to the control engine After the time out that you specify the Data control starts writing data e Default Update Rate ms This option specifies the rate in milliseconds that the control engine checks the memory locations to see if change has occurred e Default Dead Band This option specifies to the control engine the amount of change that must occur in a value before the control engine writes the new value to the Data control For example if the
61. 32 A5E00077133 01 User Controls Defining the Color of the Slider Control The Color tab of the Properties dialog Figure 5 23 allows you to define the two colors BackColor and ForeColors of the Slider Control Select the Property Back Color or ForeColor and then select the color to be displayed for that property from the color palette You can choose from a palette of standard colors or you can create custom colors e BackColor Define the background color of the control e ForeColor Define the color used to display text and graphics in an object Siemens_SIMATIC_UserControls Slider Properties x General Scaling Picture Color Name Properties Color Set Standard Colors x Color Palette Oo O Green O Magenta J O Red Cancel Apply Help Figure 5 23 Slider Control Properties Color Tab Note BackColor can be changed only if you have selected Style Standard on the General tab but ForeColor can be changed for both Style Standard and Style Graphical MicroComputing A5E00077133 01 5 33 User Controls Assigning a Name to the Control The Name tab of the Properties dialog Figure 5 24 allows you to assign more meaningful names to the control you have inserted into the container This tab appears only when you are using controls in the SoftContainer Type the new name in the Control Name field and click on Apply or OK The new name appears in the S
62. 33 01 Setting Up the SIMATIC MicroComputing Software If an Older Version of MicroComputing Is Already Installed If the installation program finds another version of the MicroComputing software on the programming device the program reports this and prompts you to decide how to proceed by offering the following choices e Abort the installation so that you can uninstall the older version of the MicroComputing software and then start the installation again e Continue the installation and overwrite the older version with the new version Your software will be better organized if you uninstall any older versions before installing the new version Overwriting an old version with a new version has the disadvantage that if you then uninstall any remaining components of the old version are not removed If you uninstall the older version of MicroComputing you must reboot your computer before installing the new version Troubleshooting Any Errors That Occur During Installation The following errors may cause the installation to fail e Initialization error immediately after starting Setup The Setup exe program was probably not started under Windows e Not enough memory You need at least 20 Mbytes of free space on your hard disk e Bad disk Verify that the disk is bad then call your local Siemens representative e Operator error Start the installation again and read the instructions carefully Uninstalling the MicroComputing Softw
63. 6 Select the Connections tab of the Properties dialog box for the Data control Click on the beside SIMATIC Data1 or double click on SIMATIC Data1 to display the listing of the controls in the container Click on the beside Button1 or double click on Button1 to display the properties for the Button control See Figure 1 20 Scroll down to and select click on the Value property Notice that when you select the Value property the Assigned Variable field becomes active As shown in Figure 1 20 enter i0 0 in the Assigned Variable field You can use either upper case or lower case for designating memory locations Click on the Apply button Repeat this procedure for the other Button controls and the three Edit controls entering the variables listed in Table 1 2 After you have configured the connections for all of the controls click on the OK button to confirm the changes and close the Properties dialog box Siemens SIMATIC DataControl Properties General Engine Connections Events Name Controls Assigned Variable Button1 aj lioo I Alignment Enabled I Enable Border Style Browse FalseCaption FalseColor FalsePicture FereColor Update rat ms 100 Locked PushButton a Dead ba rece After you select the property from the aes E Automat hierarchy enter the memory location of the variable to be assigned to that
64. ALT were pressed the value of shift would be 6 XY Returns a number that specifies the current location of the mouse pointer MicroComputing A5E00077133 01 Events C 11 MouseUp Event Applies to Button Edit Label Slider This event occurs when a mouse button is released while the mouse cursor is over the control Syntax MouseUp short Button short Shift OLE_XPOS_PIXELS x _ OLE_YPOS_PIXELS y The MouseUp event has these parts Part Description Button An integer that identifies the button that was pressed to cause the event The button argument is a bit field with bits corresponding to the left button bit 0 right button bit 1 and middle button bit 2 These bits correspond to the values 1 2 and 4 respectively Only one of the bits is set indicating the button that caused the event Shift An integer that corresponds to the state of the SHIFT CTRL and ALT keys when the button specified in the button argument is pressed or released A bit is set if the key is down The shift argument is a bit field with the least significant bits corresponding to the SHIFT key bit 0 the CTRL key bit 1 and the ALT key bit 2 These bits correspond to the values 1 2 and 4 respectively The shift argument indicates the state of these keys Some all or none of the bits can be set indicating that some all or none of the keys are pressed For example if both CTRL and ALT were pressed the value of shift would
65. Adding Properties to the Filter Siemens SIMATIC DataControl Properties s S7Data1 Button1 Enabled Value Button2 Editi Editi Click on the check box to toggle the property filter on and off Figure 1 8 Applying the Filter to the Property List MicroComputing A5E00077133 01 Getting Started with SIMATIC MicroComputing 7 As shown in Figure 1 9 select the Value property of the control Siemens SIMATIC DataControl Properties Select the Value property General Engine Connections Events VN Controls 4signed Variable S7Soft1 d S7Data1 Button1 Enableg Value Button2 Seen _ Editt ee Editi l Enter the memory location of the variable to be assigned to that property Update rat z Automatic write mode Add Delete Filter Apply filter to properties Cancel Apply Help Figure 1 9 Assigning a Variable in the Control Engine to a Property in a Control 8 Refer to Table 1 1 to assign the variables memory addresses in the control engine to the SIMATIC controls 9 Click on the Apply button to enter the assigned variables Table 1 1 Assigning Sample Addresses to the SIMATIC Controls Control Address Description Edit1 QBO Output value of first counter Edit2 QB1 Output value of second counter Edit3 QB2 Outp
66. Color Cancel Apply Help Figure 5 16 Label Control Properties Color Tab MicroComputing A5E00077133 01 5 25 User Controls Assigning a Name to the Label Control 5 26 The Name tab of the Properties dialog Figure 5 17 allows you to assign more meaningful names to the control you have inserted into the container This tab appears only when you are using controls in the SoftContainer Type the new name in the Control Name field and click on Apply or OK The new name appears in the Select Control list in the toolbar To open the control Properties dialog box double click on the desired control Siemens_SIMATIC_UserControls Label Properties Label1 Figure 5 17 Label Control Properties Name Tab MicroComputing A5E00077133 01 User Controls Properties and Methods of the Label Control Use the properties and methods listed in Table 5 7 to manipulate the Label control Table 5 7 Properties and Methods of the Label Control Property or Method Description Page AboutBox method Displays the About message box for the control B 1 Alignment property Determines the alignment of the text B 2 Appearance property Determines if the control is displayed with 3D effects B 3 BackColor property Determines the background color for the control B 5 BorderStyle property Selects the border style fixed single or none B 5 C
67. Data controls MicroComputing E 4 A5E00077133 01 Guidelines for Programming with SIMATIC MicroComputing E 3 Guidelines for Creating Custom ActiveX Controls In order to create a custom ActiveX control that can be used with the SIMATIC Data control the custom control must provide a property to which data can be written For example your custom control might have a Value property when the Value property changes then the control reacts Reading Data from the Data Control If the container supports extended controls see Section E 1 the Data control automatically finds the custom control and its properties You use the Properties dialog box of the Data control to assign a variable in the control engine to the property of the custom control For information about assigning variables to properties see Section 4 4 Whenever the value of the variable in the control engine changes the Data control updates the value of the property for the custom control The custom control should include a subroutine for handling the data written from the Data control Table E 1 provides a sample subroutine for a property Value that reads the data written by the Data control Writing Data to the Data Control For the custom control to generate write a change to the variable in the control engine you must include a subroutine for handling a change in the property Table E 1 provides a sample subroutine for writing the new value to the Data contro
68. Description object An object expression that evaluates to an object in the Applies To list result A long value that indicates whether an error has occurred The result is zero if no error occurs ConnectedObject A String expression that evaluates to the name of an object that should be connected If this parameter is set to an empty String the control generates the ValueChanged event if a connected variable changes ConnectionTable optional Specifies a connection table If this parameter is omitted the control reads the ConnectionTable property of the ConnectedObject The connection table is declared as an array Each element in the array has the following parts e Name of the element such as Value e Memory location such as MW100 e Update rate or time out value in ms e Deadband value For more information about the connection table see Section 4 7 Note If the ConnectedObject and ConnectionTable parameters are both omitted an error is reported B 8 MicroComputing A5E00077133 01 Properties and Methods B 12 ConnectObject Method Applies to Data This method establishes connections for a specified object which was declared in the program If your subroutine accesses the Data control programmatically always disconnect from the control engine using a Disconnect method in the Form_Unload subroutine In addition disable the AutoConnect property for the Data control if you explicitly call the Conne
69. EE E connecting to MicroComputing F server interfaces F 5 server name F 5 Communicating local and remote DCOM client and server D 1 D 21 Communications processor card configuring for MicroComputing 3 6 Component Object Model COM client and server D 1 D 21 Computer requirements 2 3 Connecting to a local computer to a remote compara 4 4 4 Connecting to data using Data control 2s Connecting to data using OPC F 5F 7 MicroComputing A5E00077133 01 Index Connection table Data control 4 12 sample program 4 12 ConnectionError event error codes Data control 4 27 ConnectName method B 7 ConnectObject method B 9 Control engine REE pe addressing memory areas A 6 connecting ActiveX controls connecting over DCOM 4 4 connecting SIMATIC controls 4 2 connecting to CP card 3 6 data types A 6 memory areas OPC access OPC connection Control engine strings PG PC Interface 4 4 ControlEngine property B 10 Controller See Control engine Copy protection removing the authorization transferring the authorization 3 5 Counters addressing memory area S7 200 controllers A 11 S7 200 memory area A 2 types A 11_ variables CP card configuring for MicroComputing 3 6 Custom events Customize changing the language F 2 D Data 2 4 ActiveX control objects Button 5 245 6 F it 5 12 5 23 Label 5 22 5 26 MicroC
70. End statement in the Form_Unload subroutine MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control Table 4 5 Other Subroutines for Running the Sample Program Visual Basic Code Private Sub cmdStartEvents_Click If cmdStartEvents Caption Start Events Then Timerl Enabled True cmdStartEvents Caption Stop Events Else Timerl Enabled False cemdStartEvents Caption Start Events End If End Sub Private Sub Timer1_Timer Dim mbO As Variant Dim my_state As Long S7Datal ReadVariable MBO mb0O my_state 0 If mbO lt 254 Then mbO mbO 1 Else mbO 0 End If Label2 Caption mb0 S7Datal WriteVariable MBO mb0O 0 End Sub MicroComputing A5E00077133 01 4 19 Accessing the Process Data with the Data Control 4 9 4 20 Sample Programs for Reading and Writing Data You can write a program that initiates access to data reading or writing in the control engine You can read or write single variables multiple variables or arrays of variables For information about the memory areas of the S7 200 controllers see Appendix A Warning Using the timer function improperly or using breakpoints in Visual Basic with MicroComputing can cause problems that could potentially cause your computer or application to crash or lock up Depending on the configuration this could cause the application to lose communication with the control engine This
71. IMATIC MicroComputing 3 As shown in Figure 1 5 select the control and click on its plus symbol to expand its properties list Button1 a sett ___ Appearance Enabled __ FalsePicture Font ForeColor Locked PushButton StretchMode Style TrueCaption __ TrueColor TruePicture Value Figure 1 5 Displaying the Expanded List of Properties 4 As shown in Figure 1 6 click on the Filter button f S7Data1 Click on the Filter button to select des R the properties to be displayed utton1 Alignment Appearance Enabled Border Style FalseCaption FalseColor FalsePicture Font ForeColor Locked PushButton bd Figure 1 6 Using the Filter Button MicroComputing A5E00077133 01 1 7 Getting Started with SIMATIC MicroComputing 1 8 5 As shown in Figure 1 7 click on the Add button to enter additional properties to display Use the Edit button to correct entries and the Delete button to remove entries 6 As shown in Figure 1 8 select the Apply filter to properties check box to display only the properties listed in the filter You can use the check box to toggle the filter on and off Siemens SIMATIC DataControl Properties Property Filter Click on the Add button to add a property to the filter a S7Data1 Enabled Button1 Ali Value Figure 1 7
72. Light 6 FillColor vbGreen Else Light 6 FillColor vbRed End If MicroComputing A5E00077133 01 4 17 Accessing the Process Data with the Data Control Table 4 4 Sample Program for Responding to Events in the Control Engine continued Case M0_7 Event MO_7 turns Light 7 green If Value True Then Light 7 FillColor vbGreen Else Light 7 FillColor vbRed End If End Select End Sub Running the Sample Program Generating the Events in the Control Engine 4 18 Table 4 5 provides sample Visual Basic code for changing the value stored in MBO Changing the value of MBO then causes the control engine to generate the events defined in the connection table Table 4 3 e The command button cmdStartEvents starts or stops the timer Timer 1 e The timer Timer1 reads the value stored in MBO of the control engine increments the value and writes the new value back to the control engine The changed value of MBO causes the control engine to generate the events Caution Failing to disable the timers in your program could cause timer generated connections to remain connected allowing these connections to continue to write data to the control engine This could cause the control engine to operate erratically which could potentially cause damage to equipment and injury to personnel To ensure that all connections are disconnected when your program closes always disable all timers before the
73. MATIC MicroComputing Running the Sample Program E 8 Save the program before switching Visual Basic from Design mode to Run mode When the sample program runs the custom scrollbar control that you created reflects the changing value stored in QBO Note If the control engine is not running the Data control cannot make a connection Before setting Visual Basic into Run Mode ensure that the control engine is running Use the following procedure to configure the Data control for communicating with the control engine and for running the sample program 1 Select the Engine tab to configure the control engine See Figure E 1 2 Select the Direct Connect option and enter weS7 2 case sensitive for an S7 200 PLC Click on the Apply button to enter the data and then click on the OK button to close the dialog box 3 Switch Visual Basic from Design mode to Run mode to run the sample program Siemens SIMATIC Data Control Properties x General Engine Connections Events Name Select the option for a direct connection C Connect via Tag Source Tag Source e Browse Enter wes7 2 as the type of control engine Direct Connect PC Name Control Engine wes Cancel Apply Help Figure E 1 Connecting to the Control Engine Scrollbar Control Example MicroComputing A5E00077133 01 Guidelines for Programming with SIMATIC MicroComputing E 5 Known Problems fo
74. ME key To specify key codes use the constants in the Visual Basic VB object library in the Object Browser Shift An integer that corresponds to the state of the SHIFT CTRL and ALT keys at the time of the event The shift argument is a bit field with the least significant bits corresponding to the SHIFT key bit 0 the CTRL key bit 1 and the ALT key bit 2 These bits correspond to the values 1 2 and 4 respectively Some all or none of the bits can be set indicating that some all or none of the keys have been pressed For example if both CTRL and ALT are pressed the value of shift is 6 Use KeyDown and KeyUp event procedures if you need to respond to both the pressing and releasing of a key MicroComputing A5E00077133 01 C 5 Events C 6 KeyDown and KeyUp interpret the uppercase and lowercase of each character by means of two arguments keycode which indicates the physical key thus returning A and a as the same key and shift which indicates the state of shifttkey and therefore returns either A or a If you need to test for the shift argument you can use the shift constants which define the bits within the argument The constants have the following values e vbShiftMask 1 SHIFT key bit mask e vbCtrlMask 2 CTRL key bit mask e vbAltMask 4 ALT key bit mask The constants act as bit masks that you can use to test for any combination of keys You test for a condition by first assigni
75. O in the Add new key field SSO and click on the OK button Figure 1 15 Adding an Event Key to the Data Control 3 In the Properties dialog box enter memory address QB0 in the Assigned Variable field See Figure 1 16 4 Click on the Apply button to accept the assigned variable Notice that the event key QBO appears in boldface under S7Data1 5 Enter new event keys for QB1 memory address QB1 and QB2 memory address QB2 by selecting S7Data1 again and repeating steps 2 and 3 Siemens SIMATIC DataControl Properties S7Soft1 4 S7Data1 apo Select the event key QBO Enter QBO in the Assigned Variable field and click on the Apply button Figure 1 16 Assigning a Variable to an Event Key MicroComputing A5E00077133 01 Getting Started with SIMATIC MicroComputing Configuring the Control Engine for the Data Control 1 In the Properties dialog box for the Data control select the Engine tab to configure the control engine 2 Select the Direct Connect option and enter weS7 2 for an S7 200 CPU 2xx as the control engine Click on the Apply button to enter the data and then click on the OK button to close the dialog box Entering a Sample Program for the Data Control 1 Select the Data control in UserForm1 2 Select the View gt Code menu command to display the code window for the Data control 3 Select S7Data1 from the drop down list of the
76. Picture propert KnobWidth property B 19 Label control description events 5 27 Change Click C 1 DbIClick Error C 3 MouseDown MouseMove MouseUp C 9 methods AboutBox B 1 properties ForeColor StretchMode B 32 Index 5 Index Style B 33 properties and methods 5 27 toolbar button 5 22 Language selection F 2 LargeChange property B 20 Locked property Max and Min properties B 21 Megahertz MHz system requirements 2 3 Memory areas SIMATIC controls Button E Edit 5 12 Label 52215 26 Slider 5 28 Memory areas of 57 200 controllers A 2 accessing data OPC controls F 5 SIMATIC controls Memory bits S7 200 memory area M A 2 Memory requirements 2 3 Methods AboutBox B 1 Connect B 7 ConnectName B 7 ConnectObject B 9 Data control Disconnect B 13 examples PropertyChangedName B 25 PropertyChangedObject ReadMultiVariables ReadVariable B 28 WriteMultiVariables method B 38 WriteNow B 38 WriteVariable method B 39 MHz system requirements 2 3 MicroComputing Button control description 5 4 computer requirements 2 3 Data control error codes 4 26 ies 4 26 Index 6 Edit control description 5 12 toolbar button 5 12 error codes Data 4 27 events Data 4 26 installation authorization 3 4 copy protection 3 4 procedure 3 2 removing the authorization
77. Project menu command to display the New Project dialog box then select the ActiveX Control icon not the ActiveX EXE icon and click on the Open button Add a User Control to the project Select the Project gt Add User Conirol menu command then select the User Control icon from the Add User Control dialog box Click on the Open button to add the User Control to the project Select the horizontal scrollbar control HScrollBar in the toolbox and insert it onto the UserControl1 form Select the scrollbar control In the Properties window select the Max property for this control HScroll1 and enter the following value 255 Display the Code window for UserControl1 by selecting the View gt Code menu command In the Code window enter the program listed in Table E 2 Close both the code window and the Object window Visual Basic adds this ActiveX control UserControl1 to the toolbox Table E 2 Sample Program for an ActiveX Control Used with MicroComputing Visual Basic Code Public Property Get Value As Integer Value HScrolll Value End Property MicroComputing A5E00077133 01 Guidelines for Programming with SIMATIC MicroComputing Table E 2 Sample Program for an ActiveX Control Used with MicroComputing continued Public Property Let Value ByVal New_Value As Integer HScrolll1 Value New_Value PropertyChanged Value End Property Adding the 1 Public Sub H
78. Result S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_2 ControlTable 1 M0 2 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_3 ControlTable 1 M0 3 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_4 ControlTable 1 M0 4 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_5 ControlTable 1 M0 5 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_6 ControlTable 1 M0 6 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_7 ControlTable 1 M0 7 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Eve
79. Run mode to run the sample program MicroComputing A5E00077133 01 1 15 Getting Started with SIMATIC MicroComputing 1 4 Using MicroComputing with Microsoft Excel Using the Data control in an Excel spreadsheet allows you to access the values in the control engine To create this sample application you need the following items e Microsoft Excel 97 or Excel 2000 e Control engine such as an S7 200 CPU 222 e Sample program see Section 1 1 e STEP 7 Micro WIN software to download the program to the control engine and to turn on the input bits of the sample program This example shows how to use events to call code to update your Excel cells Events are a means of linking changing data to code within a VBA form Note You can also use the I O Panel application to turn on the input bits of the sample program running in the control engine See Section 1 2 for information about the I O Panel application Creating a Command Button in Excel The first step in creating the sample Excel application is to create a command button Use the following procedure to create a command button 1 Start the Excel application If prompted about whether to enable or disable macros select the Enable Macros option 2 In the following cells of the spreadsheet enter the following labels Incell A1 enter qb0 n cell A2 enter qb1 n cell A3 enter qb2 3 Select the View gt Toolbars gt Control Toolbox menu command
80. SIEMENS SIMATIC MicroComputing User Manual Edition 08 2000 A5E00077133 01 Preface Contents Getting Started with SIMATIC MicroComputing Product Overview Setting Up the SIMATIC MicroComputing Software User Controls Designing Process Forms with F S gt D Oo 8 ro 0o 0 O v 5 e og a D o 5 D o Ei O O O wn n o fad r jab Comat Appendices Memory Areas of the S7 200 Controllers Properties and Methods m lt D 77 Using SIMATIC MicroComputing J Q O Guidelines for Programming with SIMATIC MicroComputing Using the Computing Configuration Tool Q oO x lt m mMm o O U Safety Guidelines This manual contains notices which you should observe to ensure your own personal safety as well as to protect the product and connected equipment These notices are highlighted in the manual by a warning triangle and are marked as follows according to the level of danger Danger indicates an imminently hazardous situation which if not avoided will result in death or serious injury Warning indicates a potentially hazardous situation which if not avoided could result in death or serious injury 0 Caution used with the safety alert symbol indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury Caution used without the sa
81. Scrolll1_Change Value HScrolll Value End Sub Custom Control to a Program Using the SIMATIC Data Control Open a new VB project Use the File gt Add Project menu command to display the Add Project dialog box then select the Standard EXE icon and click on the Open button Visual Basic opens a new project with an empty form in the Object window The Project directory area now lists two projects Project contains UserControl1 and Project2 contains Form1 2 Select the UserControl1 icon in the toolbox and insert it onto Form1 of Project2 3 Add the Siemens SIMATIC Data control to the toolbox For information about adding controls to the VB toolbox see Section 1 1 and Figure 1 12 4 Select the Data control icon in the toolbox and insert it onto Form1 of Project2 5 Select the Data control and click the right mouse button to bring up the pop up menu From the pop up menu select Properties to display the Properties dialog box for the Data control 6 From the Properties dialog box select the Connections tab Click on the symbol to expand the list of controls 7 Select the UserControl1 control and click on its symbol to expand its properties list 8 Select the Value property and enter QBO in the Assigned Variable field See MicroComputing A5E00077133 01 Figure 1 13 Click on the Apply and OK buttons to enter the data and close the Properties dialog box E 7 Guidelines for Programming with SI
82. ShowErrorBoxes Property cece eee eee teen eee eee ShowMinMax Propert Nas aaa aech aca ora nd Ararat AS Ra E RA SmallChange Property 00 c cece eee eee eee StretchMode Property 0c ee eee ete Style Property Text Property Ticks Property TrueCaption Property TrueColor Property TruePicture Property vii Contents viii B 55 Value Properly esc esds cree eseesebeeerener eee EAEE NENA EREA B 36 B 56 WriteMode Property cece cette eee B 37 B 57 WriteNow Method 0 nii eee eens B 38 B 58 WriteMultiVariables Method 0 cece ees B 38 B 59 WriteVariable Method 00 0 c cece eee eee tenes B 39 B 60 Zeropad Property 2 ise nese nie eee na edie Chee eae bd ote ARO B 40 LAY 21 E A E E E A A T TTN C 1 C 1 Change Event 0066 c cece etn eee tenes C 1 C 2 Click EVEN owe siios ita uchie ed edge nb eta A aag a a eens Dii C 1 C 3 ConnectionError Event 000s cece etn eens C 2 C 4 DbIClick Event 000 cece eee eee eee eee C 2 C 5 ENOC EVON er aak EE AE atte ered usar ow ene weer ae C 3 C 6 KeyDOwn EVent 202 eserere se oseer eb endeior ese renee ereanee nerds C 4 C 7 KeyPress Event 000 cece eet ene eee eee eens C 5 C 8 KeyUp Event 1 246 226 scsi oae ieee bee ied E ee eealee ene C 5 C 9 MouseDown Event 0 00 c eee eee ee C 7 C 10 MouseMove Event 0 cece eee teen eee C 8 C 11 MouseUp Eve
83. a To establish a connection between a Button Edit or Slider control and your process data you assign a single bit variable to the Value property of the control To establish a connection between the Label control and your process data you assign a single bit variable to the Caption property of the Label control The variable cannot be assigned within the Properties dialog box of the control Instead use the Properties dialog box of the Data control and select the button from the expandable list of controls under the Connections tab See Figure 5 1 To set properties for anything other than the Value property use the Properties dialog box of the control itself Use the Edit menu or right click the mouse button and select the Properties command for the control Note In order to connect the control to actual process data you must establish a connection through the Data control Siemens SIMATIC DataControl Properties x General Engine Connections Events Name Controls Assigned Variable E S7Datat moo Button1 Alignment Browse Appearance bled Enable Border Style FalseCaption FalseColor FalsePicture Update rate ms 100 Fon ForeColor okod ushButton f StretchMode Dead band 0 Style TrueCaption 3 A Z TrueColor Automatic write mode TruePicture 5 Value d Add Delete Filter Apply filter to properties
84. able 4 13 Properties and Methods of the Data Control Property or Method Description Page Activated property Specifies whether or not all connections are activated B 1 AutoConnect property Specifies whether or not the configured connections B 3 are established at runtime AutoConnectTimeout Specifies a timeout value B 4 property Connect method Establishes all configured connections B 7 ConnectName method Establishes connections for the object that is B 7 specified by name ConnectObject method Establishes connections for a specified object B 9 ControlEngine property Specifies the control engine for the connection DefaultDeadband Specifies the dead band used by the Data control if B 12 property no dead band is specified in the connection table DefaultUpdateRate Specifies the update rate used by the Data control if B 12 property no update rate is specified in the connection table Disconnect method Releases all established connections B 13 MultipleEngines property Specifies whether the connection is to one specific B 22 S7 300 S7 400 only control or to several control engines PCName property Specifies the network identification for a remote B 23 computer for connecting over a network PropertyChangedName_ Notifies the Data control that the value of a property B 25 method of a connected control referenced by Name has changed PropertyChangedObject Notifies the Data control th
85. access the data in the control engine but also allows you flexibility in how you access the data and what you can do with the data The examples in this chapter show some of the ways you can use the ActiveX controls provided by MicroComputing As shown in Figure 1 1 this chapter provides samples of subroutines for the following applications e Create a user interface You can use a SIMATIC control with a third party container such as Microsofts Visual Basic to create an I O interface panel See Section 1 2 You can use this panel to test the other sample programs in this chapter e Use a standard ActiveX control You can also use a standard control such as a Label control from Visual Basic to access data in the control engine See Section 1 3 e Load data from the control engine into standard software packages You can load data into a Microsoft Office application such as Microsoft s Excel See Section 1 4 Instead of using the third party container Section 1 2 you can use the SoftContainer provided by MicroComputing to create a simple I O panel See Section 1 5 You can find the sample programs in the following directory on the drive where you installed the MicroComputing software C Siemens WinAC Examples O Panel E l Interface Panel Example E Ge Control engine Section 1 2 5 S7 200 Label Control Example Section 1 3
86. addition disable the AutoConnect property for the Data control if you explicitly call the Connect method within your program This helps to ensure that the Data control does not connect unexpectedly to the control engine Syntax result object Connect The Connect method has these parts Part Description object An object expression that evaluates to an object in the Applies To list result A long value that indicates whether an error has occurred The result is zero if no error occurs ConnectName Method Applies to Data This method establishes connections for the object that is specified by the name of the object on the form If your subroutine accesses the Data control programmatically always disconnect from the control engine using a Disconnect method in the Form_Unload subroutine In addition disable the AutoConnect property for the Data control if you explicitly call the Connect method within your program This helps to ensure that the Data control does not connect unexpectedly to the control engine MicroComputing A5E00077133 01 B 7 Properties and Methods Note A programmer who uses Visual Basic or a similar programming language would use the ConnectName method while a programmer who uses Visual C or a similar programming language would use the ConnectObject method Syntax result object ConnectName ConnectedObject ConnectionTable The ConnectName method has these parts Part
87. address Since analog outputs are words and always start on even number bytes such as 0 2 or 4 you write them with even number byte addresses such as AQWO AQW2 or AQW4 as shown in Figure A 4 Analog output values are write only values Format AQW starting byte address AQW4 MSB LSB AQ W 10 15 8 7 0 L_ Byte address AQW10 byte 10 byte 11 Access to a word size value Area identifier analog output Most significant byte Least significant byte Figure A 4 Accessing an Analog Output Addressing the Variable V Memory Area You can use V memory to store intermediate results of operations being performed by the control logic in your program You can also use V memory to store other data pertaining to your process or task You can access the V memory area in bits bytes words or double words Format Bit V byte address bit address V10 2 Byte Word Double Word V size starting byte address VW100 Addressing the Bit Memory M Area You can use the bit memory area M memory as control relays to store the intermediate status of an operation or other control information While the name bit memory area implies that this information is stored in bit length units you can access the bit memory area not only in bits but also in bytes words or double words Format Bit M byte address bit address M26 7 Byte Word Double Word M size starting byte address MD20 MicroComputing A5E00077
88. al from the drop Appearance 1 wThreeD zl down list box for Data Format Borderstyle 1 wFixedSingle WriteMode 0 wAutomatic x Cancel Apply Help Figure 1 21 Configuring the Display Properties of the Edit control MicroComputing 1 24 A5E00077133 01 Getting Started with SIMATIC MicroComputing Connecting the SIMATIC Controls to the Control Engine If the control engine is not active your controls have no process to monitor When you are ready to use the controls to view or modify data the control engine must be running Use the following procedure to connect the controls in the container to the control engine 1 Click on the Run icon or select the Mode gt Run menu command to switch the container from Design mode to Run mode See Figure 1 22 2 Click on the Button controls to start or stop the counters in the sample program Notice that when the Button control changes state the value displayed in the corresponding Edit control changes 3 Click on the Design icon or select the Mode gt Design menu command to switch the container from Run mode to Design mode disconnecting the controls from the control engine S7SoftContainer S7Soft1 x File Edit View Mode Options Window Help Dea e Eal KO afafa Click on the Run button to switch the container from Design mode to Run mod
89. ange the security settings for access to the server Figure D 5 From the Names field select Everyone or the appropriate subset of users and click on the Add button Distributed COM Configuration Properties Click on the Edit Default button to allow remote users Applications Default Properties Default Security Default to access the computer Default Access Permissions You may edit who is allowed to access applications that do not provide their own settings Registry Value Permissions Default L You may Registry Value DefaultAccessPermission provide th Owner NDS1910 M Duchamp Name Default C You may configurat and adjus Click on the Add button to change the security settings ype of Accessi z OK Cancel Add Remove Help Figure D 4 Configuring the Default Access Permissions for DCOM MicroComputing A5E00077133 01 D 5 Using SIMATIC MicroComputing with DCOM ZN D 6 Caution Granting permission to access applications on a computer allows other users such as Everyone to start and stop programs or to access files on your computer Granting unlimited access to everyone on the network could cause problems from either innocent or malicious interference Always limit access to those users who are required to use the applications or files on the computer Select INTERACTIVE
90. anges of the Value property and fires events If this property is False then the control is disabled and does not react on changes in the Value property and does not fire any event except the error event Syntax object Enabled boolean The Enabled property has these parts Part Description object An object expression that evaluates to an object in the Applies To list boolean A Boolean expression that specifies whether object can respond to user generated events The settings for boolean are Setting Description True Default Allows the object to respond to events False Prevents object from responding to events Factor Property Applies to Edit Slider The Factor and Offset properties specify the scaling factor and the offset used when the scale by formula option has been enabled Note The ScaleMode property must be set to wByFormula 1 for the Factor and Offset properties to have any effect MicroComputing A5E00077133 01 B 15 Properties and Methods B 22 B 16 You can use a formula to scale the value In the following formula Value is similar to the contents of the Value property if the control is connected to the control engine Factor is the value of the Factor property Offset is the value of the Offset property and DisplayValue is also the contents of the Text property Value Factor Offset DisplayValue Syntax object Factor value The Factor pr
91. ants depending on Colors the container for example colors listed in the Visual Basic VB object library in the Object Browser MicroComputing A5E00077133 01 Properties and Methods B 27 B 28 B 29 KnobHeight Property Applies to Slider This property determines the height of the indicator displayed by the control Syntax object KnobHeight single The KnobHeight property has these parts Part Description object An object expression that evaluates to an object in the Applies To list single A value that determines the height of the indicator KnobPicture Property Applies to Slider This property determines the picture graphic used for the indicator on the control Syntax object KnobPicture picture The KnobPicture property has these parts Part Description object An object expression that evaluates to an object in the Applies To list picture A picture that determines the image for the indicator KnobWidth Property Applies to Slider This property determines the width of the indicator displayed by the control Syntax object KnobWidth single MicroComputing A5E00077133 01 B 19 Properties and Methods B 30 B 31 B 20 The KnobWidth property has these parts Part Description object An object expression that evaluates to an object in the Applies To list single A value that determines the width of the indicator LargeChange Property Applies to Slider This
92. aption property Determines the text that is displayed by the control B 6 Enabled property Determines whether the control reacts to changes of B 15 the Value property and fires events Font property Returns a Font object for the main font of the control B 18 ForeColor property Determines the text color of the control B 18 Picture property Determines the graphic used for the control B 24 StretchMode property Determines the resize mode of the graphical element B 32 for the control Style property Determines the style standard or graphical for the B 33 control Events of the Label Control The Label control responds to the events listed in Table 5 8 Table 5 8 Events of the Edit Control Event Description Page Change event Occurs when the value of the Value property changes C 1 Click event Occurs when a mouse button is pressed and released C 1 while the mouse cursor is over the control DblClick event Occurs when a mouse button is double clicked while the C 2 cursor is over the control Error event Occurs when a property is set to an illegal value C 3 MouseDown event Occurs when a mouse button is pressed while the mouse C 7 cursor is over the control MouseMove event Occurs when the mouse cursor moves over the control C 8 MouseUp event Occurs when a mouse button is released while the mouse C 9 cursor is over the control MicroComputing A5E00077133 01 5 27 User Controls 5 5 Configuring the Property Pages of the Slider Control
93. are Use the following procedure to remove the MicroComputing software from your computer 1 Start the dialog box for installing software under Windows by double clicking on the Add Remove Programs icon in the Control Panel 2 Select the MicroComputing entry in the displayed list of installed software Click on the Add Remove button to uninstall the software MicroComputing A5E00077133 01 3 3 Setting Up the SIMATIC MicroComputing Software 3 2 Authorization SIMATIC MicroComputing requires a product specific authorization or license for use The software is therefore copy protected and can be used only if the relevant authorization for the program or software package has been found on the hard disk of the computer The MicroComputing software has two types of authorization e The unlimited authorization allows an unrestricted number of connections for each Data control e The limited authorization restricts the Data control to five connections The Data control can access up to five memory locations Note If you remove the authorization MicroComputing continues to operate however after the first 30 minutes a notification message appears every two minutes to alert you that the authorization is missing Authorization Disk 3 4 An authorization diskette is included with the software It contains the authorization and the program AUTHORSW required to display install and remove the authorization T
94. at the value of a property B 25 method of a connected control referenced by Object has changed ReadMultiVariables Reads the status of several variables in the control B 27 method engine ReadVariable method Reads the status of one specific variable in the B 28 control engine ShowErrorBoxes Specifies whether to display the default error boxes B 30 property when there is a user generated error WriteMultiVariables Writes new values to several variables in the control B 38 method engine WriteVariable method Writes a new value to a specific variable in the control B 39 engine The Data control responds to the events listed in Table 4 14 MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control Table 4 14 Events of the Data Control Event Description Page ConnectionError Occurs when an error on a connection occurs C 2 ValueChanged Occurs when the value of a connected variable changes C 10 and no connected event was specified on the call to the Connect method Error Codes for the Data Control ConnectionError Event When an error occurs in the Data control the control generates a ConnectionError event Your program can capture this ConnectionError event and respond to specific situations The ConnectionError event can detect standard OLE errors such as E_FAIL or E OUTOFMEM Table 4 15 lists some of the error codes Table 4 15 Data Control Error Codes Error Code Description 0x80004005
95. ation about inserting controls into the SoftContainer see Section 6 2 Figure 1 18 shows a sample layout for the controls in the process form S7Soft1 S7Soft1 x ata control 0 0 0 dit controls OFF OFF OFF i Button controls i Se Figure 1 18 Using the SoftContainer to Create a Sample I O Panel Configuring the Properties for the SIMATIC Controls You use the Properties dialog box of the Data control to connect the other SIMATIC controls to the control engine To assign a variable memory location in the control engine to a SIMATIC control select the Data control and click the right mouse button right click to display the shortcut menu From the shortcut menu select the Properties menu command for the Data control to display the Properties dialog box Configuring the the Control Engine for the Data Control This example presumes that you have installed a control engine Figure 1 19 For more information about connecting to control engines see Section 4 3 Use the following procedure to connect the Data control to the control engine 1 Select the Engine tab of the Properties dialog box for the Data control 2 Select the Direct Connect option and enter weS7 2 as the control engine 3 Click on the Apply button to enter this data MicroComputing A5E00077133 01 1 21 Getting Started with SIMATIC MicroCo
96. bWidth Determine the height and width of the indicator displayed by the control Horizontal Vertical lana Figure 5 18 Orientation of the Slider Control MicroComputing 5 28 A5E00077133 01 User Controls Using the check boxes on the General tab you can define other operations for the control e Show Min and Max Value Determine whether the minimum and maximum values are displayed e Enabled Determine whether the control responds to events It does not generate events while disabled The default setting for this option is enabled selected e Locked Determine whether the control is in a read only state In locked state you cannot change any values eme A erContro der Propertie x 1 wGraphical Ly 10 0 wHorizontal iy 1 1 wResizelmage x 5 v 450 v 195 Figure 5 19 Slider Control Properties General Tab MicroComputing A5E00077133 01 5 29 User Controls Defining a Scale for Displaying Values The Scaling tab of the Properties dialog box Figure 5 20 allows you to define a scale for displaying the value in the memory location This scaling factor is used both in reading a value from and writing a value to the control engine Select one of three scaling options e No scaling of the data default O wNoScaling e Scaling by formula 1 wByFormula e Scaling by ranges 2 wByRange Siemens_SIMATIC_UserControls Slider Properties Scaling Pictu
97. bel Properties x General Scaling Font Color Name Properties Color Set Standard Colors x Color Palette Edit Custom Color Cancel Apply Help Figure 5 11 Edit Control Properties Color Tab MicroComputing A5E00077133 01 5 17 User Controls Assigning Names to the Edit Control The Name tab of the Properties dialog Figure 5 12 allows you to assign more meaningful names to the control you have inserted into the container This tab appears only when you are using controls in the SoftContainer Type the new name in the Control Name field and click on Apply or OK The new name appears in the Select Control list in the toolbar To open the control Properties dialog box double click on the desired control Siemens_SIMATIC_UserControls Edit Properties x General Scaling Font Color Name Control Name Editt Cancel Apply Help Figure 5 12 Edit Control Properties Name Tab Properties and Methods of the Edit Control 5 18 Use the properties and methods listed in Table 5 4 to manipulate the Edit control Table 5 4 Properties and Methods of the Edit Control Property or Method Description Page AboutBox method Displays the About message box for the control B 1 Alignment property Specifies the alignment of the number in the control B 2 Appearance property coe whether the control is displayed as 3D or B 3 at BackC
98. bjects have finished being instantiated In order to ensure that the objects have been properly instantiated always start a timer in the Form_Load subroutine with a large interval such as 1 or 2 seconds to allow the objects to be properly instantiated Subsequent timer intervals can be set to shorter intervals MicroComputing A5E00077133 01 E 3 Guidelines for Programming with SIMATIC MicroComputing Using a Separate Data Control to Access Critical Data The performance of your program can be improved by using a separate SIMATIC Data control to access frequently changing critical data Disconnecting from the Control Engine If your subroutine accesses the Data control programmatically always disconnect from the control engine using a Disconnect method in the Form_Unload subroutine In addition disable the AutoConnect property for the Data control if you explicitly call the Connect method within your program This helps to ensure that the Data control does not connect unexpectedly to the control engine Determining the Order of AutoConnects for Multiple Data Controls If you use multiple Data controls in your program the order in which the different Data controls automatically connect to the control engine s cannot be determined If the order in which the Data controls connect to the control engine s is critical disable the AutoConnect property for the Data control and use the Connect and Disconnect methods for the individual
99. ble the timers in your program could cause timer generated connections to remain connected allowing these connections to continue to write data to the control engine This could cause the control engine to operate erratically which could potentially cause damage to equipment and injury to personnel To ensure that all connections are disconnected when your program closes always disable all timers before the End statement in the Form_Unload subroutine MicroComputing A5E00077133 01 4 15 Accessing the Process Data with the Data Control Creating a Connection Table for Responding to Events Your program can create an event table to define specific events in the control engine Table 4 3 lists the code for creating a connection table for defining event keys for a control engine Table 4 3 Sample Program for Creating a Connection Table for Responding to Events Visual Basic Code Dim controlTable 4 AS String Define the event keys ControlTable 0 M0_0 ControlTable 1 M0 0 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M0_1 ControlTable 1 M0 1 ControlTable 2 500 ControlTable 3 0 IResult S7Datal ConnectName ControlTable Event Name Process Variable Update Rate DeadBand ControlTable 0 M
100. border will surround the rectangle of the control Note This property only has an effect if the BorderStyle property is set to Fixed Single 1 Syntax object Appearance value The Appearance property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value or constant that determines the appearance of object as described in settings The settings for value are Setting Description 0 or Flat Paints the controls and forms without visual effects 1 or ThreeD Default Paints the controls with three dimensional 3 D effects AutoConnect Property Applies to Data This property allows you to specify whether or not the configured connections are established at runtime Syntax object AutoConnect value MicroComputing A5E00077133 01 B 3 Properties and Methods B 6 B 4 The AutoConnect property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A Boolean expression that specifies whether object can respond to user generated events The settings for value are Setting Description True Default All configured connections will be established at runtime False The connections will be established with a call to the Connect method Note If you explicitly call the Connect method within your program disable the AutoConnect prop
101. buted COM communication properties The Authentication Level specifies security at the packet level Default Authentication Level Configure the authentication Ja level to Connect Connect The Impersonation Level specifies whether applications can determine who is calling them and whether the application can do operations using the client s identity Configure the impersonation level to Identify Default Impersonation Level Identify _ Provide additional security for reference tracking OK Cancel Apply Figure D 13 Distributed COM Configuration Properties MicroComputing A5E00077133 01 Using SIMATIC MicroComputing with DCOM Configuring the Permissions for Accessing Software on the Client 1 Click on the Default Security tab to display the security options for DCOM See Figure D 14 2 Click on the Edit Default button for Default Access Permissions to display the Registry Value Permissions dialog box 3 Click on the Add button to display the Add Users and Groups dialog box and change the security settings for access to the server See Figure D 15 4 From the Names field select Everyone or the appropriate subset of users and click on the Add button 5 Select INTERACTIVE and click on the Add button 6 Select SYSTEM and click on the Add button Distributed COM Configuration Propert
102. ct Activated value The Activated property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A Boolean expression that specifies whether object can respond to user generated events MicroComputing A5E00077133 01 B 1 Properties and Methods B 3 B 2 The settings for value are Setting Description True Default All connections are activated False All connections are deactivated Note The connections remain established even if they are deactivated Alignment Property Applies to Button Edit Label This property specifies the alignment of the text of the control Syntax object Alignment value The Alignment property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value or constant that determines the alignment The settings for value are Setting Description 0 or Left Default for Edit Control Left aligned 1 or Right Right aligned 2 or Center Default for Button and Label Controls Centered MicroComputing A5E00077133 01 Properties and Methods B 4 B 5 Appearance Property Applies to Button Edit Label If this property is set to ThreeD 1 and the BorderStyle property is set to Fixed Single 1 then the Appearance property draws controls with three dimensional effects If the property is set to Flat 0 a flat
103. ct Text value The Text property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A String value that specifies the text to be displayed by the control MicroComputing A5E00077133 01 B 33 Properties and Methods B 51 B 52 B 53 B 34 Ticks Property Applies to Slider This property sets the number of ticks or unit markers of the control For example if Ticks 10 the scale of the control will be divided into 10 sections Syntax object Ticks value The Ticks property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value or constant that determines the number of unit markers to be displayed TrueCaption Property Applies to Button This property determines the text that is displayed in the control when the Value property is True equal to 1 or On Syntax object TrueCaption string The TrueCaption property has these parts Part Description object An object expression that evaluates to an object in the Applies To list string Text that determines the active or inactive text of the control TrueColor Property Applies to Button This property determines the color of the control when the Value property is True equal to 1 or On MicroComputing A5E00077133 01 Properties and Methods Syntax object TrueColor color The
104. ct method within your program This helps to ensure that the Data control does not connect unexpectedly to the control engine Note A programmer who uses Visual Basic or a similar programming language would use the ConnectName method while a programmer who uses Visual C or a similar programming language would use the ConnectObject method Syntax result object ConnectObject ConnectedObject ConnectionTable The ConnectObject method has these parts Part Description object An object expression that evaluates to an object in the Applies To list result A long value that indicates whether an error has occurred The result is zero if no error occurs ConnectedObject A String expression that evaluates to the name of an object that should be connected If this parameter is set to an empty String the control generates the ValueChanged event if a connected variable changes ConnectionTable optional Specifies a connection table If this parameter is omitted the control reads the ConnectionTable property of the ConnectedObject The connection table is declared as an array Each element in the array has the following parts e Name of the element such as Value e Memory location such as MW100 e Update rate or time out value e Deadband value MicroComputing A5E00077133 01 B 9 Properties and Methods B 13 B 14 B 10 Note If the ConnectedObject and ConnectionTable parameters are both omitted
105. ction for a Local or a Remote Computer Use the following procedure to configure the Data control for connecting to a control engine 1 Double click on the Data control or use the Edit gt Properties menu command to display the Properties dialog box for the Data control 2 Click on the Engine tab to display the configuration choices 3 Select the Direct Connection option See Figure 4 4 4 To connect to a control engine on a remote computer enter the network name of the remote computer for example PC_2 in the PC Name field If the control engine is connected to the local computer leave the field blank 5 In the Control Engine field enter weS7 2 as the name of the control engine 6 Click on the Apply button to configure the Data control MicroComputing 4 4 A5E00077133 01 Accessing the Process Data with the Data Control Siemens SIMATIC DataControl Properties Engine Connections Name Select Direct Connection and enter the name of the remote computer and the sn control engine Figure 4 4 Configuring DCOM for a Control Engine Note To connect to a remote computer using LAN you must have configured the different computers for DCOM See Sections D 2 and D 3 for information about configuring computers for DCOM MicroComputing A5E00077133 01 4 5 Accessing the Process Data with the Data Control 4 4 4 6 Connecting the ActiveX Controls to
106. d RawMin Properties Applies to Edit Slider These properties define the ranges for scaling a value e RawMax specifies the maximum raw value of the control if the ScaleMode is wByRange or wScaleNone e RawMin specifies the minimum raw value of the control if the ScaleMode is wByRange or wScaleNone Note The ScaleMode property must be set to wByRange or wScaleNone before these properties can have an effect When you use a range transformation to scale the value you specify a source range for the values in the control engine and a destination range for the values that are displayed by the control The values of one range will be transformed to the other range The source and destination ranges define a ratio for the transformation they do not define upper or lower limits A value can be larger or smaller than the range the transformation will use the two ranges to extrapolate the other value Syntax object RawMax value object RawMin value The RawMin and RawMax properties have these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value or constant that determines the maximum or minimum raw value of the control B 42 ReadMultiVariables Method Applies to Data This method reads the status of the connected variables in the control engine Syntax result object ReadMultiVariables VarNames VarValues States MicroComp
107. d Users and Groups dialog box and change the security settings for access to the server 5 From the Names field select Everyone and click on the Add button 6 Click on the OK button to enter these changes to the Registry Value Permissions dialog box 7 Click on the OK button to enter the changes to the default access permissions MicroComputing A5E00077133 01 D 19 MicroComputing A5E00077133 01 Guidelines for Programming with SIMATIC MicroComputing Chapter Overview The Data control can be used not only with other SIMATIC controls but also with other third party or custom ActiveX controls To work with a custom Activex control the Data control requires that the control provide a minimum of code to respond to changes in the assigned variable When you write programs that use the SIMATIC controls provided by the MicroComputing software to access the control engine be aware of the programming guidelines especially those in regard to the use of timers in your code The MicroComputing software provides a container SoftContainer for the SIMATIC controls and other ActiveX controls You can also use other containers such as Visual Basic with the SIMATIC Controls In order to use the SIMATIC controls in another container the container must support the extended controls If the container does not support these functions you must supply program code to perform these functions Section Description Pag
108. d write Dim value_r 2 As Single for real write Read an array of Real floating point values name_s MD0 REAL 3 value_r 0 Rnd 1000 value_r 1 Rnd 1000 value_r 2 Rnd 1000 timeout_1l 100 re S7Datal WriteVariable name_s value_r timeout_1 Display the values and return codes for the array in a List Box ListBox1 Clear ListBoxl AddItem Return Code amp Hex rc ListBox1 AddItem Wrote MDO REAL O amp value_r 0 ListBoxl1 AddItem Wrote MDO REAL 1 amp value_r 1 ListBoxl1 AddItem Wrote MDO REAL 2 amp value_r 2 End Sub Reading Multiple Variables in the Control Engine Table 4 10 provides sample Visual Basic code for using the ReadMultiVariables method of the Data control to read multiple variables in the control engine Table 4 10 Reading Multiple Variables in the Control Engine Visual Basic Code Private Sub ReadMultiReals Dim i As Integer Dim rc As Long Dim names_array 2 As String Dim values_v As Variant Dim states_v As Variant Read three Real floating point values For i 0 To 2 names_array i MD amp i 4 amp REAL Next i re S7Datal ReadMultiVariables names_array values_v states_v Display the value and return code in a List Box ListBox1 Clear ListBoxl AddItem RetCode amp Hex rc For i 0 To 2 ListBoxl AddItem amp names_array i amp
109. dead band is 10 and the value in the control engine is 22 then the control engine does not write a new value until the value becomes either 33 or 11 e Show Error Boxes This option specifies whether to display the default error boxes when there is a user generated error MicroComputing provides error messages in English only If you want to display messages in other languages you must deselect this option and write program code to react on the error event Siemens SIMATIC DataControl Properties x General Engine Connections Events Name AutoConnect v AutoConnect Timeout ms 100 Default Update Rate ms 100 Default Dead Band 0 Show Error Boxes z Cancel Apply Help Figure 4 2 Data Control Properties General Tab MicroComputing A5E00077133 01 4 3 Accessing the Process Data with the Data Control 4 3 Selecting the Control Engine for the Data Control As shown in Figure 4 3 you can use the Data control to connect your program to a control engine residing either on a local computer or on a remote computer Direct Connection on a Local Computer Other ActiveX controls I Data control Direct Connection on a Remote Computer Other ActiveX controls I PC 1 PC 2 Data control Figure 4 3 Direct Conne
110. double words Format Bit Q byte address bit address Q1 1 Byte Word Double Word Q size starting byte address QB5 Addressing the Analog Inputs Al The S7 200 converts a real world analog value such as temperature or voltage into a word length 16 bit digital value You access these values by the area identifier Al size of the data W and the starting byte address Because analog inputs are words and always start on even number bytes such as 0 2 or 4 you access them with even number byte addresses such as AIWO AlW2 or AlW4 as shown in Figure A 3 For unipolar input data use the data format WORD default for bipolar input data use the data format INT For example use AlW8 INT for bipolar data and AIW6 WORD for unipolar data Analog input values are read only values Format AIW starting byte address AIWA4 Al W 8 MSB LSB 15 8 7 A L Byte address AIW8 byte 8 byte 9 Access to a word size value Area identifier analog input Most significant byte Least significant byte Figure A 3 Accessing an Analog Input MicroComputing A 8 A5E00077133 01 Memory Areas of the S7 200 Controllers Addressing the Analog Outputs AQ The S7 200 converts a word length 16 bit digital value into a current or voltage proportional to the digital value such as for a current or voltage You write these values by the area identifier AQ size of the data W and the starting byte
111. e sreeeerrrrereeeereren i E N i eueerereeeeen nN Click on the Button control to change bit 10 0 from 0 to 1 The Edit control shows changing counter value in QBO Ready Run LL Figure 1 22 Placing the Container into Run Mode MicroComputing A5E00077133 01 1 25 MicroComputing A5E00077133 01 Product Overview 2 Chapter Overview SIMATIC MicroComputing provides a method for other software applications to access the process data of your application MicroComputing provides ActiveX controls that can be inserted in any software application that is an OLE control container like Visual Basic or Visual C While the SIMATIC controls provided by MicroComputing have been tested with other containers provided by other vendors some third party containers may not function as described in this document Refer to Appendix E for guidelines about third party containers and about using custom ActiveX controls with the Data control Warning When you change the value that is displayed in an ActiveX control whether from MicroComputing or from a third party software application you are changing the value in your actual process Altering process data can cause unpredictable process operation which could result in death or serious injury to personnel and or damage to equipment Exercise caution to ensure that you do not modify nor permit unauthorized persons to access any data that could cause proces
112. e E 1 Guidelines for Third Party Containers E 2 E 2 Programming Guidelines E 3 E 3 Guidelines for Creating Custom ActiveX Controls E 5 E 4 Using a Custom ActiveX Control with a Data Control E 5 Known Problems for MicroComputing E 9 MicroComputing A5E00077133 01 E 1 Guidelines for Programming with SIMATIC MicroComputing E 1 Guidelines for Third Party Containers For the SIMATIC Data control to work within a third party container the container must support the property browsing functions of the Data control To do this the container must support the functions for extended controls as defined by Microsoft for containers An extended control is a partial control that wraps around another control to support container specific properties methods and events Refer to Microsofts on line documentation for more information about containers and extended controls To provide the extended control functions the container must support the following methods e OleClientSize GetContainer e OleContainer EnumObjects e OleControlSite GetExtendedControl The extended control of the container must also support a Name property The SoftContainer provided with the MicroComputing software supports extended controls as does Microsoft s Visual Basic Containers from other vendors such as Borland s Delphi version 3 0 do not support extended controls The Siemens customer support center can help determine if your conta
113. e equal to 0 or Off Font property Returns a Font object for the main font of the control B 18 ForeColor property Determines the foreground color used to display the B 18 text of the control Locked property Sets the control to a read only state By default the B 20 control is not in locked mode so the user can enter numbers PushButton property Determines the operation mode of the control if set to B 26 True or 1 the Value property is inverted as long as the Button control is pressed MouseDown event StretchMode property Determines the resize mode of the graphical element B 32 for the control Style property Determines the style standard or graphical for the B 33 control TrueCaption property Determines the text that is displayed in the control B 34 when the Value property is True equal to 1 or On TrueColor property Determines the color of the control when the Value B 34 property is True equal to 1 or On TruePicture property Determines the graphic element that is displayed by B 35 the control when the Value property is True equal to 1 or On Value property Contains the value that is linked to the control engine B 36 MicroComputing A5E00077133 01 User Controls Events of the Button Control The control responds to the events listed in Table 5 2 Table 5 2 Events of the Button Control Event Description Page Change event Occurs when the value of the Value property changes C 1 Click event Occurs whe
114. e I O Panel 00000 cece cece eee Connecting Third Party Controls to a Data Control Using MicroComputing with Microsoft Excel 0000 eee Using the SoftContainer with the Sample Program Product Overview 000 c cece eee ene eee eens Using an ActiveX Control to Access the Process Data 3 Setting Up the SIMATIC MicroComputing Software 000eeee0s 3 1 3 2 3 3 Installing and Uninstalling the MicroComputing Software Authorization 2 2 iiag iiia eee waari neina Heeb baie Edie Abid send ocd eae Connecting MicroComputing to a Communications Processor CP Card 4 Accessing the Process Data with the Data Control 4 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 4 11 Connecting the SIMATIC Controls to the Control Engine Configuring the Connection Properties for the Data Control Selecting the Control Engine for the Data Control Connecting the ActiveX Controls to the Control Engine Filtering the Properties for the ActiveX Controls 0005 Configuring Custom Events 000 eee eee eee teens Creating a Connection Table 0 000 cece cece eens Sample Program for Responding to Events 000200000 Sample Programs for Reading and Writing Data Sample Program for Reading and Writing Bool
115. e Properties dialog box for the Data control 2 Click on the Filter button see Figure 4 6 Siemens SIMATIC DataControl Properties General Engine Connections Events Name Controls Assigned Variable S7Soft1 aj TE Click on the Filter button to select S7Data1 the properties to be displayed Button1 Button2 Edit1 Edit2 Dead b d 0 Automatic write mode Add Delete Filter Z Apply filter to properties Cancel Apply Help Figure 4 6 Selecting the Properties to Filter 3 As shown in Figure 4 7 enter the properties to display and click on the Add button Use the Edit button to correct entries and the Delete button to remove entries 4 As shown in Figure 4 8 select the Apply filter to properties check box to display only the properties listed in the filter Use the Apply filter to properties check box to toggle the filter on and off MicroComputing A5E00077133 01 4 9 Accessing the Process Data with the Data Control 4 10 Siemens SIMATIC DataControl Properties Property Filter Click on the Add button to enter a Enabled property to the filter Figure 4 7 Entering a Property to the Filter Siemens SIMATIC DataControl Properties S7Data1 h Button1 Enabled Click on the check box to toggle the property filter on and off Button2 4 Edit1 Edit1
116. e and size for the labels of the Label control Font Select the typeface for the label from a list of standard typefaces Size Select the point size from a list of standard point sizes or enter a specific point size for the label Effects Select other typographical options boldface italic underline or strike through for the label The Sample Text field displays the selection of the Font property O MS Sans Serif ly 8 25 yf MS Sans Serif Figure 5 15 Label Control Properties Font Tab MicroComputing A5E00077133 01 User Controls Defining the Color of the Label Control The Color tab of the Properties dialog Figure 5 16 allows you to define the colors for the background BackColor and for the text ForeColor of the Label control Select the property BackColor or ForeColor and then select the color to be displayed for that property from the color palette You can choose from a palette of standard colors or you can create custom colors Note ForeColor Text color can be changed for both Style Standard and Style Graphical but the background color BackColor may be hidden by the bitmap picture of the label in certain stretchmodes Siemens_SIMATIC_UserControls Label Properties x General Picture Font Color Name Properties Color Set Standard Colors iy Color Palette Gray al Green Magenta jmi O T T Edit Custom
117. e applications or files on the computer Distributed COM Configuration Properties HE Applications Default Properties Default Security Defaul Enable DCOM on this computer v Enable Distributed COM on this computer V Enable COM Internet services on this computer Default Distributed COM communication properties The Authentication Level specifies security at the packet level Configure the authentication level to Connect Default Authentication Level Connect Tt The Impersonation Level specifies whether applications can determine who is calling them and whether the application can do operations using the client s identity Configure the impersonation level to Identify Default Impersonation Level Identify ind _ Provide additional security for reference tracking OK Cancel Apply Figure D 3 Distributed COM Configuration Properties MicroComputing A5E00077133 01 Using SIMATIC MicroComputing with DCOM Configuring the Permissions for Accessing Software on the Server 1 Click on the Default Security tab to display the security options for DCOM Figure D 4 Click on the Edit Default button for Default Access Permissions to display the Registry Value Permissions dialog box Click on the Add button to display the Add Users and Groups dialog box and ch
118. e physical ints Y h i A SIMATIC output points You can access the process image output register as bits bytes words or double words Analog output AQ International AA SIMATIC The controller converts a word length digital value into an analog value Analog outputs are write only words Variable Memory V International and SIMATIC V memory stores intermediate data for the program V memory is global any program entity can access it You can configure V memory to be retentive saved permanently to EEPROM if power fails You can access L memory as bits bytes words or double words Bit memory M International and SIMATIC This memory area provides storage for interim results calculated in the program You can configure MBO to MB13 to be retentive You can access M memory as bits bytes words or double words Special memory SM International and SIMATIC This memory area allows you to monitor and control specific controller functions You can access SM memory as bits bytes words or double words SMBO to SMB29 are read only SMB30 and higher are read write Timers T international and SIMATIC This memory area provides the timers used by the program You can access the timer bit or current value word MicroComputing allows you to only read timers You cannot write data to timers Counters C International Z SIMATIC This memory area provides the counters used by the program
119. ean Data Properties Methods and Events of the Data Control 5 User Control 2s ccseee ieee ieee a been dea baw a ede daa dae bas 5 1 5 2 5 3 5 4 5 5 Connecting the User Controls to the Process Data Configuring the Property Pages of the Button Control Configuring the Property Pages of the Edit Control Configuring the Property Pages of the Label Control Configuring the Property Pages of the Slider Control 6 Designing Process Forms with the SoftContainer 2055 6 1 MicroComputing A5E00077133 01 Starting the SoftContainer 00 0 cece teens PRETE E PLS ollo A oN DA N Contents 6 2 Creating a Process Form 0c cece eee 6 4 6 3 Switching from Design Mode to Run Mode 000020ee eee 6 4 Saving Your Process Form 2c iuctdtchaactiecedantiaehdenrdeebdas A Memory Areas of the S7 200 Controllers eece cece eee eee eeeees A 1 Memory Areas of S7 200 Controllers 02 cece eee eee A 2 A 2 Accessing the Data in the S7 200 Micro PLC 005 Using the Memory Address to Access Data 0 00 cece neces A 3 Address Descriptions of the Memory Areas 00 eee eee Addressing the Process Image Input Register I 0 0 eee eee eee Addressing the Process lmage Output Register Q 020eeeeeeeees Addressin
120. ect Method Applies to Data This method releases all established connections MicroComputing A5E00077133 01 B 13 Properties and Methods B 19 B 14 Note If your subroutine accesses the Data control programmatically always disconnect from the control engine using a Disconnect method in the Form_Unload subroutine In addition disable the AutoConnect property for the Data control if you explicitly call the Connect method within your program This helps to ensure that the Data control does not connect unexpectedly to the control engine Syntax result object Disconnect The Disconnect method has these parts Part Description object An object expression identifier for the specific SIMATIC control that evaluates to an object in the Applies To list result A long value that indicates whether an error has occurred The result is zero if no error occurs DisplayValue Property Applies to Edit Slider This property is a variant which returns the scaled value for the control Syntax object DisplayValue value The DisplayValue property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A Variant that specifies the value of the control MicroComputing A5E00077133 01 Properties and Methods B 20 B 21 Enabled Property Applies to Button Edit Label Slider When this property is True the control reacts on ch
121. elect Control list in the toolbar To open the control Properties dialog box double click on the desired control Siemens_SIMATIC_UserControls Slider Properties x General Picture Font Color Name Control Name Slider1 Cancel Apply Help Figure 5 24 Slider Control Properties Name Tab Properties and Methods of the Slider Control Use the properties and methods listed in Table 5 9 to manipulate the Slider control Table 5 9 Properties and Methods of the Slider Control Property or Method Description Page AboutBox method Displays the About message box for the control B 1 BackColor property Determines the background color for the control B 5 Direction property Sets the orientation horizontal or vertical B 13 Display Value property Returns the scaled value for the control B 14 Enabled property Determines whether the control reacts to changes of B 15 the Value property and fires events Factor property Specifies the scaling factor used when the B 15 scale by formula option has been enabled used with ScaleMode property ForeColor property Determines the foreground color for the control B 18 MicroComputing 5 34 A5E00077133 01 User Controls Table 5 9 Properties and Methods of the Slider Control continued Property or Method Description Page KnobHeight property Determines the height of the indicator displayed
122. elected Items Only Cancel Apply Figure 1 12 Adding the Data Control to the Visual Basic Toolbox MicroComputing A5E00077133 01 1 13 Getting Started with SIMATIC MicroComputing 3 Insert a Data control onto the VB form For information about inserting controls onto the VB form see Section 1 1 4 Insert a VB label on your form Change the Border Style property to 1 Fixed Single 5 Select the Data control and click the right mouse button to bring up the pop up menu From the pop up menu select Properties to display the Properties dialog box for the Data control 6 From the Properties dialog box select the Connections tab Click on the plus symbol to expand the list of controls 7 Select the Label1 control and click on its plus symbol to expand its properties list 8 Select the Caption property and enter QBO in the Assigned Variable field See Figure 1 13 Click on the Apply button to enter the data Siemens SIMATIC DataControl Properties General Engine Connections Events Name Controls Assigned Variable a Label1 qb0 Alignment Browse Appearance BackColor BorderStyle Update rat ms 100 Caption Enabled Dead ban so Font Select the Caption property and enter ForeColor Automati the QB0 in the Assigned Variable field Add Delete Filter Apply Cancel Apply Help Figure 1 13 A
123. eneral tab Figure 5 8 allow you to define the following properties concerning how the data will be displayed e Alignment Define how the value will be displayed in the Edit control aligned to the left side of the field centered in the field or aligned to the right side of the field e Data format Define the storage type used for converted values If you are using a data type for displaying a value which is too large the value will be truncated The data type specified in this field shown in Figure 5 8 must match any data type specified in the Assigned Variable field of the Data Control Properties dialog box see Figure 5 2 Table 5 3 shows the data type sizes for the Edit control e Precision Define the decimal place for the real floating point number Enter the number of digits to the right of the decimal The default value is three digits This field is enabled only for the Real data type e Appearance Define the way the control looks If you set this property to 3D the control will have a three dimensional appearance You must also set the border style to Fixed Single to enable the three dimensional appearance The other option is Flat which displays a two dimensional rectangular border around the control e BorderStyle Define whether a border is displayed If you set this property to Fixed Single the control is displayed with a rectangular border if you set the property to None no border will be displayed e Wri
124. er limit has to be less than the upper limit MicroComputing A5E00077133 01 5 21 User Controls 5 4 Configuring the Property Pages of the Label Control The Label control allows you to display a constant string You can also connect the Caption property of the Label control to any process value The process value is converted into a string and displayed The Label control cannot be used for input Defining the Label and Enabling the Control The General tab of the Properties dialog Figure 5 13 allows you to define the presentation of the Label control e Alignment Define how a value is displayed in the Label control aligned to the left side of the field centered in the field or aligned to the right side of the field e Caption Specify the text that is displayed by the control If the caption is attached to a process value the process value is displayed instead e Style Determine the style standard or graphical for the control e Appearance Define the way the control looks If you set this property to 3D the control has a three dimensional appearance You must also set the border style to Fixed Single The other option is Flat which displays a two dimensional rectangular border around the control e BorderStyle Define whether a border is displayed If you set this property to Fixed Single the control is displayed with a rectangular border if you set the property to None no border is displayed e Stre
125. ers accessing this object locally SYSTEM The operating system ha Add Show Users Members Search Add Names Select the user groups to be allowed access such as Everyone Interactive and System Click on the Add button to add the groups to the permission list Type of Access Allow Access zd OK Cancel Help Figure D 17 Changing the Launch Permissions for Users or Groups MicroComputing A5E00077133 01 Using SIMATIC MicroComputing with DCOM D 4 Troubleshooting This section provides suggestions for some of the problems that could occur with DCOM For more information refer to the Microsoft online product support www microsoft com Problems with Reading and Writing Data between Two Computers over DCOM Situation you are running MicroComputing on the client computer PC1 and are connected over DCOM to a server PC2 that is connected to an S7 200 You expect to read and write data between the two computers but data updates from the server on PC2 do not occur Note The users must be members of the same workgroup or domain Possible explanation PC1 was not configured to allow PC2 to send update messages to PC1 Possible solution 1 Run the DCOM configuration tool dcomenfg on PC1 2 Click on the Default Security tab 3 Click on the Edit Default button for Default Access Permissions to display the Registry Value Permissions dialog box 4 Click on the Add button to display the Ad
126. erty for the Data control This helps to ensure that the Data control does not connect unexpectedly to the control engine AutoConnectTimeout Property Applies to Data This property allows you to specify a timeout After the time specified the Data control issues a call to its Connect method if the AutoConnect property is set to True The value can also be specified at the General Property Tab Syntax object AutoConnectTimeout value The AutoConnectTimeout property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value of the type Long which states the timeout in milliseconds MicroComputing A5E00077133 01 Properties and Methods B 7 BackColor Property Applies to Edit Label Slider This property returns or sets the background color of the control Syntax object BackColor color The BackColor property has these parts Part Description object An object expression that evaluates to an object in the Applies To list color A value or constant that determines the background color of an object The settings for color are Setting Description Standard Colors Colors specified by using the RGB Color palette Windows System Colors specified by system color constants depending on Colors the container for example colors listed in the Visual Basic VB object library in the Object Browser B 8 BorderStyle Property Applies to Edit Button
127. es Figure D 8 Selecting the Running Class for DCOM MicroComputing A5E00077133 01 D 9 Using SIMATIC MicroComputing with DCOM Configuring the Access Permissions for the Running Class D 10 Use the following procedure to configure the access permissions for the running class 1 Click on the Security tab of the Running Class Properties dialog box 2 Select Use custom access permissions and click on the Edit button See Figure D 9 3 If Everyone or the appropriate subset of users is not shown in the Permissions dialog Name list click on the Add button to display the Add Users or Groups dialog box See Figure D 10 Running Class Properties 2 x General Security Identity C Use default access permissions Use custom access permissions You may edit who can access this application Select Use custom launch permissions and click on the Edit button to ensure that the correct set of users is allowed access to the server C Use default launch permiesic Use custo Taunch permissions You may edit who can launch this application Edit C Use default configuration permissions Use custom configuration permissions You may edit who can change the configuration information for this application Edit OK Cancel Apply Figure D 9 Configuring the DCOM Access Permissions for the Server MicroComputing A5E00077133 01 Using SIMATIC M
128. es on your computer Granting unlimited access to everyone on the network could cause problems from either innocent or malicious interference Always limit access to those users who are required to use the applications or files on the computer Starting the DCOM Configuration Editor To configure the DCOM client you must run the DCOM configuration tool on the computer that will function as the client Use the following procedure to start the DCOM configuration tool 1 Select the Start gt Run menu command from the Start menu 2 In the Run dialog box enter dcomenfg and click on the OK button The DCOM configuration tool displays the Distributed COM Configuration Properties dialog box MicroComputing A5E00077133 01 D 13 Using SIMATIC MicroComputing with DCOM Configuring the Default Properties for DCOM Communication D 14 Use the Distributed COM Configuration Properties dialog box to configure the properties of the computer for DCOM 1 Click on the Default Properties tab See Figure D 13 2 Select the Enable Distributed COM on this computer option 3 Set the Default Authentication Level to the Connect option 4 Set the Default Impersonation Level to the Identify option Distributed COM Configuration Properties HE Applications Default Properties Default Security Default Enable DCOM on this computer M Enable Distributed COM on this computer Default Distri
129. es to Edit This method issues a value changed for the Value property of the control You must use this method only if the WriteMode property is set to Manual 1 Syntax object WriteNow The WriteNow method has these parts Part Description object An object expression that evaluates to an object in the Applies To list B 58 WriteMultiVariables Method Applies to Data This method writes new values for several variables in the control engine Syntax result object WriteMultiVariables VarNames VarValues States The WriteMultiVariables method has these parts Part Description object An object expression that evaluates to an object in the Applies To list VarNames A Variant that specifies the array of variables memory locations in the control engine VarValues A Variant that contains an array of the corresponding values to be written to the specified variables States A Variant that contains an array of the quality code Long for each of the variables result A Long value that indicates whether an error has occurred The result is zero if no error occurs MicroComputing B 38 A5E00077133 01 Properties and Methods B 59 WriteVariable Method Applies to Data This method writes a new value to a specific variable in the control engine Syntax result object WriteVariable VariableName Value TimeOut The WriteVariable method has these parts MicroComputing A5E00077133 01 Part objec
130. essing A 10 S7 200 memory area A 2 Transferring the MicroComputing authorization See also README TXT on the authorization disk Index 10 Troubleshooting DCOM D 19 no valid authorization TrueCaption propert TrueColor property U Uninstalling the MicroComputing software 3 3 V Value property B 36 ValueChanged event C 10 Variable memory area addressing A 9 Visual Basic connect disconnect B 4 B 7 B 9 B 14 container guidelines custom ActiveX controls E 5 sample program E 6 Data control for critical data sample programs I O panel Microsoft Excel other controls VBScrollbar ee eae STEP 7 Micro WIN program 1 3 timers quidelines A 7 E 3 Visual Basic example read write data 4 20 WwW Warnings emergency stop circuit Visual Basic timers A 7 E 3 Word access S7 200 memory areas A 4 WriteMode property B 37 WriteMultiVariables method B 38 WriteNow method B 38 WriteVariable method B 39 Z Zeropad property B 40 MicroComputing A5E00077133 01 To SIEMENS ENERGY amp AUTOMATION INC ATTN TECHNICAL COMMUNICATIONS M S 519 3000 BILL GARLAND ROAD PO BOX 1255 JOHNSON CITY TN USA 37605 1255 From Name Job Title Company Name Street City and State Country Telephone Please check any industry that applies to you Automotive O Pharmaceutical Chemical Plastic Electrical Machinery Pulp
131. essing memory areas ActiveX controls Edit 5 1245 23 _5 22 5 26 _5 28 5 30 F S7 200 controllers SIMATIC controls 4 1 Accessing process data ActiveX controls Accessing the OPC server F 5 Activated property B 1 ActiveX controls Button 5 4 5 8 Button control description 5 4 toolbar button connecting to control engine 4 6 creating custom control E 5 creating process form 6 4 custom controls E 6 Data control description 4 1 error codes events 4 26 toolbar button 4 1 N MicroComputing A5E00077133 01 Edit control description 5 12 toolbar button 5 12 filtering properties Label 5 225 26 Label control EER description 5 22 toolbar button 5 22 properties Button control Data control 4 26 4 27 Label control 5 12 Slider control 5 28 sample program I O panel 1 4 Microsoft Pe a other controls VBScrollbar 1 12 1 16 1 26 SoftContainer STEP 7 Micro WIN program 1 3 sample uses 1 2 sharing data among applications 2 4 Slider control description 5 28 SoftContainer operating mode 6 6 6 8 overview 6 2 with SIMATIC controls 4 1 Adding connection to Data control 4 8 Addressing S7 200 memory analog inputs analog outputs bit memory area a res addressing S7 200 memory areas A 4 counter memory area A 11 high speed counter memory area A 12 memory areas A 4 A 6 process image input registe
132. ete B 10 B 15 DefaultDeadband Property 60 c eects B 12 B 16 DefaultUpdateRate Property 0 cece cece cece een ence eens B 17 Direction Property 0 ccc cece cece eee eee eee eee eees B 18 Disconnect Method cece eee eee eee ees B 19 DisplayValue Property 1 eee ete MicroComputing vi A5E00077133 01 Contents B 20 B 21 B 22 B 23 B 24 B 25 B 26 B 27 B 28 B 29 B 30 B 31 B 32 B 33 B 34 B 35 B 36 B 37 B 38 B 39 B 40 B 41 B 42 B 43 B 44 B 45 B 46 B 47 B 48 B 49 B 50 B 51 B 52 B 53 B 54 MicroComputing A5E00077133 01 Enabled Property Factor Property FalseCaption Property ccc eee eee eee teens FalseColor Property FalsePicture Property Font Property ForeColor Property KnobHeight Property KnobPicture Property KnobWidth Property LargeChange Propert Locked Property O A nek wie possess a meee acn al nec toned ncuron Be Max and Min Properties 0 0 eee eee eee MultipleEngines Property 0c cece e eee eee teens Offset Property PCName Property Picture Property Precision Property PropertyChangedName Method ccc eee eee een eee PropertyChangedObject Method ccc ccc eee eens PushButton Property RawMax and RawMin Properties 00 cece eee eee ReadMultiVariables Method 000 cece eect e eee eee ReadVariable Method ScaleMode Property
133. f ly 18 25 ixl MS Sans Serif Figure 5 5 Button Control Properties Font Tab MicroComputing A5E00077133 01 5 7 User Controls Defining the Color of the Button Control The Color tab of the Properties dialog Figure 5 6 allows you to define the colors for the two states and for the text of the Button control You can choose from a palette of standard colors or you can create custom colors e Select the Off state FalseColor or the On state TrueColor and then select the color to be displayed for that state from the color palette e You can also define the ForeColor which is the color used to display text in an object Note FalseColor and TrueColor can be changed only if you have selected Style Standard on the General tab but ForeColor Text color can be changed for both Style Standard and Style Graphical Siemens_SIMATIC_UserControls Button Properties x General Picture Font Color Name Properties Color Set Standard Colors Color Palette El Edit Custom Color Cancel Apply Help Figure 5 6 Button Control Properties Color Tab MicroComputing 5 8 A5E00077133 01 User Controls Assigning a Name to the Button Control The Name tab of the Properties dialog see Figure 5 7 allows you to assign more meaningful names to the control you have inserted into the container This tab appears only when you are using controls in
134. fety alert symbol indicates a potentially hazardous situation which if not avoided may result in property damage Notice NOTICE used without the safety alert symbol indicates a potential situation which if not avoided may result in an undesirable result or state Qualified Personnel The device system may only be set up and operated in conjunction with this manual Only qualified personnel should be allowed to install and work on this equipment Qualified persons are defined as persons who are authorized to commission to ground and to tag circuits equipment and systems in accordance with established safety practices and standards Correct Usage Note the following Warning This device and its components may only be used for the applications described in the catalog or the technical description and only in connection with devices or components from other manufacturers which have been approved or recommended by Siemens This product can only function correctly and safely if it is transported stored set up and installed correctly and operated and maintained as recommended Trademarks Siemens and SIMATIC are registered trademarks of SIEMENS AG STEP 7 S7 and MicroMaster are trademarks of SIEMENS AG Microsoft Windows Windows 95 Windows 98 and Windows NT are registered trademarks of Microsoft Corporation Copyright Siemens AG 2000 All rights reserved The reproduction trans
135. g the Analog Inputs Al 006 e cece eee teen eae Addressing the Analog Outputs AQ 0000 e cece eee tees Addressing the Variable V Memory Area 000 cece cence ee eens Addressing the Bit Memory M Area 0 20 00 cece eee Addressing the Special Memory SM Bits wk kee eee Addressing the Timer T Memory Area 0 cece eee eens Addressing the Counter C Memory Area 2 00 eect eee eee Addressing the High Speed Counters HC 0 00 cece cece tenes Addressing the Sequence Control Relay S Memory Area 020005 B Properties and Methods 00 ee cee cece eee eee eee ee ne eeneeee B 1 AboutBox Method 00 eee tenet eens B 2 Activated Property 0 cece cette etn B 1 B 3 Alignment Property cece eects B 2 B 4 Appearance Property ccc cece teens B 3 B 5 AutoConnect Property 06 c cece ete tee e eee B 3 B 6 AutoConnectTimeout Property 00 c cece eee eee B 4 B 7 BackColor Property cece eee t eee eee B 5 B 8 BorderStyle Property 0 cece eee ene B 5 B 9 Caption Property 20 cece eee teens B 10 Connect Method ses smesa nu irae anina aaa ee bende aoe eee dds B 7 B 11 ConnectName Method 00 cece eee teens B 7 B 12 ConnectObject Method 2 eee ene eee B 13 ControlEngine Property 0 cece eee eee eens B 10 B 14 DataFormat Property cece eee
136. h the Data Control Responding to the Events Generated by the Sample Program Table 4 4 provides sample Visual Basic code for responding to different events from the control engine Table 4 4 Sample Program for Responding to Events in the Control Engine Visual Basic Code Private Sub S7Data4_ValueChanged ByVal Property As String ByVal VarName As String ByVal Value As Variant ByVal Quality As Integer Evaluates which event occurred Select Case Property Case M0_0 Event M0_0 turns Light 0 green If Value True Then Light 0 FillColor vbGreen Else Light 0 FillColor vbRed End If Case M0_1 Event MO_1 turns Light 1 green If Value True Then Light 1 FillColor vbGreen Else Light 1 FillColor vbRed End If Case M0O_2 Event M0_2 turns Light 2 green If Value True Then Light 2 FillColor vbGreen Else Light 2 FillColor vbRed End If Case M0_3 Event M0_3 turns Light 3 green If Value True Then Light 3 FillColor vbGreen Else Light 3 FillColor vbRed End If Case M0O_4 Event MO_4 turns Light 4 green If Value True Then Light 4 FillColor vbGreen Else Light 4 FillColor vbRed End If Case M0_5 Event MO_5 turns Light 5 green If Value True Then Light 5 FillColor vbGreen Else Light 5 FillColor vbRed End If Case M0_6 Event MO_6 turns Light 6 green If Value True Then
137. he physical key thus returning A and a as the same key and shift which indicates the state of shift key and therefore returns either A or a If you need to test for the shift argument you can use the shift constants that define the bits within the argument The constants have the following values e vbShiftMask 1 SHIFT key bit mask e vbCtrlMask 2 CTRL key bit mask e vbAltMask 4 ALT key bit mask The constants act as bit masks that you can use to test for any combination of keys You test for a condition by first assigning each result to a temporary integer variable and then comparing Shift to a bit mask Use the And operator with the Shift argument to test whether the condition is greater than 0 indicating that the modifier was pressed MicroComputing A5E00077133 01 Events C 7 C 8 KeyPress Event Applies to Button Edit Slider This event occurs when an ANSI key is pressed and released while the control has the focus Syntax KeyPress long keyAscii The KeyPress event has these parts Part Description keyAscii ASCII key code of the pressed key such as vbKeyF 1 the F1 key or voKeyHome the HOME key KeyUp Event Applies to Button Edit Slider This event occurs when a key is released while the control has the focus Syntax KeyUp long Key D long Shift The KeyDown event has these parts Part Description KeyID Key code such as vbKeyF1 the F1 key or voKeyHome the HO
138. he text to be displayed in the control when the bit is false equal to 0 or off e Style determines the style standard or graphical for the control Graphical style means that a bitmap is used e Appearance If you set this property to 3D the control will have a three dimensional appearance You must also set the BorderStyle to Fixed Single to enable the three dimensional appearance The other option is Flat which displays a two dimensional rectangular border around the control e BorderStyle If you set this property to Fixed Single the control is displayed with a rectangular border if you set the property to None no border will be displayed MicroComputing A5E00077133 01 User Controls StretchMode Determine the resize mode of the graphical element for the Button Enabled Determine whether the Button responds to events It does not generate events while disabled The default setting for this option is enabled selected Locked Determine whether the control is in a read only state In locked state you cannot change any values Pushbutton Determine whether or not the control functions like a pushbutton It determines the operation mode of the control if set to True or 1 the True value is retained as long as the Button control is pressed MouseDown event Figure 5 3 MicroComputing A5E00077133 01 ON OFF 1 wGraphical 0 wFlat B B 0 wNone z E 1 wResizelmage
139. here are separate authorization diskettes for each of the SIMATIC automation software products You must install the authorization for each product as part of the installation procedure for that software Caution If improperly transferred or removed the authorization for MicroComputing may be irretrievably lost The Readme file on the authorization diskette contains guidelines for installing transferring and removing the authorization for MicroComputing If you do not follow these guidelines the authorization for MicroComputing may be irretrievably lost Read the information in the Readme file on the authorization diskette and follow the guidelines in regard to transferring and removing the authorization MicroComputing A5E00077133 01 Setting Up the SIMATIC MicroComputing Software Installing the Authorization When you install your software for the first time a message prompts you to install the authorization Use the following procedure to install the authorization for MicroComputing 1 When prompted insert the authorization diskette in drive A 2 Acknowledge the prompt The authorization is transferred to the hard drive C and your computer registers the fact that the authorization has been installed Note Always enter drive C as the destination drive for the authorization for MicroComputing If you attempt to start MicroComputing and there is no authorization available for the software a message
140. icroComputing with DCOM Caution Granting permission to access applications on a computer allows other users such as Everyone to start and stop programs or to access files on your computer Granting unlimited access to everyone on the network could cause problems from either innocent or malicious interference Always limit access to those users who are required to use the applications or files on the computer 4 Use the Add Users and Groups dialog Figure D 10 to add users groups as required 5 Click on the OK button to return to the Running Class Properties dialog box Add Users and Groups x List Names From ENA z Names Domain Admins Designated administrators of the domain lt Domain Guests All domain guests E Domain Users All domain users ED Everyone All users gi INTERACTIVE Users accessing this object locally SYSTEM The operating system Add ShowUsers Members Search Add Names Ensure that the correct groups of users are allowed access to the server Type of Access Allow Access OK Cancel Help Figure D 10 Changing the Access Permissions for Users or Groups MicroComputing A5E00077133 01 D 11 Using SIMATIC MicroComputing with DCOM Configuring the Identity Permissions for the Running Class Use the following procedure to configure the identity permissions for the running class 1 Click on the Identity tab and select the The Interacti
141. ies Click on the Edit Default button to allow remote users Applications Default Properties Default Security Default to access the computer Default Access Permissions You may edit who is allowed to access applications that do not provide their own settings Edit Default Default Launch Permissions You may BERMACAM provide th Registry Value DefaultAccessPermission Owner FrM2001 F Marc Name Default C You may configura and adjus Click on the Add button to change the security settings Type of Access OK Cancel Add Remove Help Figure D 14 Configuring the Default Access Permissions for DCOM MicroComputing A5E00077133 01 D 15 Using SIMATIC MicroComputing with DCOM 7 Click on the OK button to enter these changes to the Registry Value Permissions dialog box 8 Click on the OK button of the Registry Value Permissions dialog box to enter the changes to the default access permissions The Registry Value Permissions dialog box closes and displays the Distributed COM Configuration Properties dialog box Figure D 14 Caution Granting permission to access applications on a computer allows other users such as Everyone to start and stop programs or to access files on your computer Granting unlimited access to everyone on the network could cause problems from either innocent or malicious interference Alway
142. ignedDecimal 5 Any BYTE WORD DWORD INT or DINT value wReal 6 4 byte floating point value wTimer 7 2 byte signed integer value wCounter 8 2 byte signed integer value wTime 9 Signed integer value IEC Time wDate 10 Signed integer value IEC Date wTimeOfDay 11 Signed integer value IEC Time wChar 12 1 byte ASCII character wString 13 String of characters Applies only to S7 300 S7 400 and WinLC control engines Note If the data size configured to be accessed in the control engine is larger than the data being displayed in the Edit control and the value of the data from the control engine is larger than can be displayed by the data format the value is displayed with preceding it Before the value can be changed from the Edit Control the preceding the value must be deleted When a value is written from the Edit Control to the control engine the amount of data written to the control engine corresponds to the data size configured in the Data Control Always ensure that memory locations are not changed inadvertently MicroComputing A5E00077133 01 Properties and Methods B 15 B 16 B 12 DefaultDeadband Property Applies to Data This property allows you to specify the dead band used by the Data control if no dead band is specified in the connection table Note If you specify a dead band such as 10 for a bit variable such as M15 5 the control engine will not
143. ile gt Save Project menu command to save the program before switching Visual Basic from Design mode to Run mode 2 Click on the Start icon or select the Run gt Start menu command to switch Visual Basic from Design mode to Run mode to run the I O panel program 3 Click on the Button control for 0 0 to start the first counter See Figure 1 11 The Button control changes color to show the state of 0 0 The Edit control for QBO displays the counter value 4 Click on the Button control for 0 1 to start the second counter See Figure 1 11 The Button control changes color to show the state of PI 0 1 The Edit control for QB1 displays the counter value 5 Click on the Button control for 0 2 to start the third counter See Figure 1 11 The Button control changes color to show the state of 0 2 The Edit control for QB2 displays the counter value MicroComputing A5E00077133 01 1 11 Getting Started with SIMATIC MicroComputing N I O Panel Click here to start the third counter Click here to start the second counter Click here to start the first counter Figure 1 11 Operating the Sample I O Panel MicroComputing 1 12 A5E00077133 01 Getting Started with SIMATIC MicroComputing 1 3 Connecting Third Party Controls to a Data Control You can use the Data control to connect any ActiveX control such as a VB Label control to data in the control engine To create th
144. iner supports the extended control functions If your container does not support the extended control functions you must provide program code to perform these functions Contact the Siemens customer support center for sample code that performs the extended control functions OLE Containers E 2 MicroComputing is an open system that may be used with OLE containers and controls from a variety of vendors The SIMATIC controls have been tested with the following containers e Microsoft Visual Basic 5 0 e Microsoft Visual Basic 6 0 recommended e Microsoft Visual Basic for Applications VBA for the Microsoft Office 97 applications e Microsoft Visual C of Microsoft Visual Studio 5 0 and 6 0 e SoftContainer installed with the MicroComputing software Some other containers from other vendors such as Borland Delphi 3 0 do not support all the necessary ActiveX interfaces to support the property browsing functions of the Data control to other controls For these containers you must write additional code in your program to support the Microsoft extended controls functions for containers MicroComputing A5E00077133 01 Guidelines for Programming with SIMATIC MicroComputing Refer to the Documentation Especially to the List of Known Problems for Any Third Party OLE Container E 2 When using the SIMATIC controls within a third party container please refer to the list of known problems for that container For example under s
145. ing examples to help you become familiar with the power and flexibility that can be achieved by using the Activex controls provided by SIMATIC MicroComputing You can find the sample programs in the following directory on the drive where you installed the MicroComputing software C Siemens WinAC Examples Warning After you assign a variable to the Value property of a SIMATIC or a third party ActiveX control the control is able to access process data When you change the value that is displayed in the control you are changing the value in the actual process Do not connect this example to a control engine that is connected to equipment Altering process data can cause unpredictable process operation and unpredictable process operation could result in death or serious injury to personnel and or damage to equipment Exercise caution to ensure that you do not access any data that could cause process equipment to operate erratically Always install a physical emergency stop circuit for your machine or process Section Description Page 1 1 Overview 1 2 1 2 Creating a Sample I O Panel 1 3 Connecting Third Party Controls to a Data Control 1 4 Using MicroComputing with Microsoft Excel 1 16 1 5 Using the SoftContainer with the Sample Program 1 20 MicroComputing A5E00077133 01 _ 1 _ Getting Started with SIMATIC MicroComputing 1 1 1 2 Overview MicroComputing allows you not only to
146. ion of the Real number B 24 RawMax property Defines the upper value of the source range for B 27 scaling a value The ScaleMode property must be set to wByRange RawMin property Defines the lower value of the source range for B 27 scaling a value The ScaleMode property must be set to wByRange ScaleMode property Specifies the scaling mode to be used for scaling the B 29 values Value property Contains the value that is linked to the control engine B 36 WriteMode property Selects whether to write new values automatically or B 37 manually WriteNow method Writes the value of the Value property B 38 ZeroPad Determines whether the displayed number is padded B 40 with zeroes to the left of the value to the size of the data type MicroComputing A5E00077133 01 5 19 User Controls Events of the Edit Control 5 20 The Edit control responds to the events listed in Table 5 5 Table 5 5 Events of the Edit Control Event Description Page Change event Occurs when the value of the Value property changes C 1 Click event Occurs when a mouse button is pressed and released C 1 while the mouse cursor is over the control DblClick event Occurs when a mouse button is double clicked while the C 2 cursor is over the control Error event Occurs when a property is set to an illegal value C 3 KeyDown event Occurs when the user presses a key while the control has C 4 the focus KeyPress event Occurs when an
147. ions with bit operands access the timer bit while instructions with word operands access the current value As shown in Figure A 5 the Normally Open Contact instruction accesses the timer bit while the Move Word MOV_W instruction accesses the current value of the timer For more information about the S7 200 instructions see the S7 200 Programmable Controller System Manual Format T timer number T24 MicroComputing A 10 A5E00077133 01 Memory Areas of the S7 200 Controllers T3 Current Value Timer Bits Read Write To To iss Ti T1 Timer number bit address T2 T2 Area identifier timer T3 T3 Current Value of the Timer 8 F MSB 12 1 oe k Read Write LSR Timer Bits TO TO T3 IN OUT vw200 Ti Ti Timer number T2 E current value address ss T3 Area identifier timer Figure A 5 Accessing the SIMATIC Timer Data Addressing the Counter C Memory Area In the S7 200 counters are devices that count each low to high transition event on the counter input s The CPU provides three types of counters one type counts up one type counts down and one type counts both up and down There are two variables that are associated with a counter e Current value this 16 bit signed integer stores the accumulated count e Counter bit this bit is set or cleared as a result of comparing the current and the preset value The preset value is
148. is sample application you need the following items e Microsoft Visual Basic 5 or higher e Data control from MicroComputing e Control engine such as an S7 200 CPU 222 e Sample program see Section 1 1 e STEP 7 Micro WIN to download the program to the control engine and to turn on the input bits of the sample program You can also use the I O Panel application to turn on the input bits of the sample program running in the control engine See Section 1 2 for information about the I O Panel application Creating a VB label that Displays a Value in the Control Engine Use the following procedure to connect a Data control with a Label control 1 Open a standard Visual Basic project Use the File gt New Project menu command to display the New Project dialog box then select the Standard EXE icon and click on the Open button 2 Add the Data control to the VB toolbox For information about adding controls to the VB toolbox see Section 1 1 and Figure 1 12 Components x Controls Designers Insertable Objects Ze e Click on the Data control Siemens SIMATIC Data Control aj Click on the Apply button to add the Siemens SIMATIC User Controls control to the VB toolbox Third Party Control e Click on the OK button to close the Third Party Control Components dialog box Third Party Control Third Party Control Third Party Control Browse Third Party Control Third Party Control S
149. l Table E 1 Reading and Writing a Changed Value of a Property Visual Basic Code Public Property Get Value As Long Value Object1 Value End Property Public Property Let Value ByVal New_Value As Long Object1 Value New_Value PropertyChanged Value End Property Private Sub Value_Change PropertyChanged Value End Sub MicroComputing A5E00077133 01 E 5 Guidelines for Programming with SIMATIC MicroComputing E 4 Using a Custom ActiveX Control with a Data Control You can create a custom ActiveX control that communicates through the Data control to access the control engine To create this sample application you need the following items Microsoft Visual Basic 5 or higher SIMATIC Data control from MicroComputing Control engine an S7 200 CPU 212 or higher Sample program see Section 1 1 STEP 7 Micro WIN to download the program to the control engine and to turn on the peripheral input bits of the sample program You can also use the I O Panel application to turn on the input bits of the sample program running in the control engine See Section 1 2 for information about the I O Panel application Creating a Custom ActiveX Control for Accessing the Control Engine E 6 Use the following procedure to use a standard VB horizontal scrollbar HScrollBar control to create a custom ActiveX control 1 Open a Visual Basic project for creating an ActiveX control Use the File gt New
150. le Controller System Manual or to the online help for STEP 7 Micro WIN Section Description Page A 1 Memory Areas of S7 200 Controllers A 2 A 2 Accessing the Data in the S7 200 Micro PLC A 4 A 3 Address Descriptions of the Memory Areas A 8 MicroComputing A5E00077133 01 A 1 Memory Areas of the S7 200 Controllers A 1 A 2 Memory Areas of S7 200 Controllers Table A 1 lists the memory areas including both the International and SIMATIC mnemonics of the S7 200 controllers For more information about S7 200 memory areas refer to the SIMATIC S7 200 Programmable Controller System Manual Note MicroComputing does not allow you to write to timers MicroComputing A5E00077133 01 Memory Areas of the S7 200 Controllers Table A 1 Memory Areas of the S7 200 Controllers Memory Area Process image input International Description At the beginning of each scan cycle the controller samples the physical input points and writes the values to this memory area You can access the E SIMATIC process image input register as bits bytes words or double words Analog input The controller converts physical analog values such as Al International temperature into word length digital values Analog i onl AE SIMATIC inputs are read only words Process image output At the end of each scan cycle the controller copies the Q International values stored in this memory area to th
151. le Variable from the Control Engine Visual Basic Code Private Sub ReadSingleRealVariable Dim rc As Long Dim name_s As String Dim value_v As Variant Dim state_l As Long Dim timeout_1l As Long Read one Real floating point value name_s MDO REAL timeout_l 0 re S7Datal ReadVariable name_s value_v state_l timeout_1 Display the value and return code in a List Box ListBox1 Clear ListBoxl AddItem RetCode amp Hex rc ListBoxl AddItem amp name_s amp amp value v ListBoxl AddItem State amp Hex state_1 End Sub Writing a Single Variable to the Control Engine Table 4 7 provides sample Visual Basic code for using the WriteVariable method of the Data control to write a single variable to the control engine Table 4 7 Writing a Single Variable to the Control Engine Visual Basic Code Private Sub WriteSingleRealVariable Dim rc As Long Dim name_s As String Dim value_v As Variant Dim timeout_1l As Long Write one Real floating point value name_s MDO REAL value_v Rnd 1000 timeout_1 100 re S7Datal WriteVariable name_s value_v timeout_1 Display the value and return code in a List Box ListBox1 Clear ListBoxl AddItem Wrote amp name_s amp amp value_v ListBoxl AddItem Return Code amp Hex rc End Sub MicroComputing A5E00077133 01 4 21 Accessing the Process Data with the
152. ller System programming the S7 200 Micro PLCs Use this manual when Manual creating a user program with the STEP 7 Micro WIN programming software OPC Server Interface This manual describes the browsable OPC server interface Manual provided with the Computing software Additional Assistance If you have any questions not answered in this or one of the other SIMATIC manuals if you need information on ordering additional documentation or equipment or if you need information on training please contact your Siemens distributor or sales office To contact Customer Service for Siemens in North America e Telephone 609 734 6500 609 734 3530 e E mail ISBU Hotline sea siemens com simatic hotline sea siemens com e Internet http www aut sea siemens com winac http www aut sea siemens com simatic support index htm http www ad siemens de support html_76 index shtml http www sea siemens com industrialsoftware To contact Customer Service for Siemens in Europe e Telephone 49 0 911 895 7000 e Fax 49 0 911 895 7001 e E mail simatic support nbgm siemens de e Internet http www ad siemens de simatic cs MicroComputing IV A5E00077133 01 Contents 1 Getting Started with SIMATIC MicroComputing 00 eeeseeeeeee 1 1 1 2 1 3 1 4 1 5 2 Product Overview 2 1 2 2 OVEIVICW o iedauda eae debbie wane en dmeda dade wena tide ae de ded diene RANA Creating a Sampl
153. low clients and servers to communicate within the same computer running Windows 95 98 or Windows NT Note The control engine must be installed on the server computer If you plan to use the SIMATIC controls provided with MicroComputing to access the control engine install the MicroComputing software on both the server computer and the client computer Section Description Page D1 Using DCOM to Provide Remote Access D2 D 2 Configuring the Permissions for the Server Computer D 3 Configuring the Permissions for the Client Computer D 4 Troubleshooting D 19 MicroComputing A5E00077133 01 D 1 Using SIMATIC MicroComputing with DCOM D 1 D 2 Using DCOM to Provide Remote Access You can use Microsoft s DCOM technology to create a network of computers that cooperate to provide the control system for a machine or process Figure D 1 shows how one computer running an application that uses ActiveX controls from MicroComputing can use DCOM to communicate with a different computer to control a process The Windows operating system provides a configuration tool dcomcnfg for setting up your DCOM network Use this tool to configure the server and client computers For information about configuring the server computer see Section D 2 for information about configuring the client computer see Section D 3 ActiveX controls j SIMATIC Data control ai Network DCOM pcm conperens
154. lp Figure F 5 Configuring the OPC Connection Note You can have only one control engine active at a time Instead of reconfiguring the Data control in your program you can use the configuration tool to change the control engine for the connection MicroComputing A5E00077133 01 Using the Computing Configuration Tool OPC Error Codes Table F 1 lists the error codes for the optional OPC interface OPC methods return error codes in a HRESULT a long variables in hexadecimal format For Visual C error conditions are handled with the HRESULT For Visual Basic error handling is written to the VB error object ERR You must add code to your VB program to access the error codes from the OPC interface Table F 1 OPC Error Codes Error Code Error Description 0x80070057 E_INVALIDARG The value of one or more parameters was not valid This is generally used in place of a more specific error where it is expected that problems are unlikely or will be easy to identify for example when there is only one parameter 0x8007000E E_OUTOFMEMORY There is not enough memory to complete the requested operation This can happen any time the server needs to allocate memory to complete the requested operation 0x0004000D OPC_E_UNSUPPORTEDRATE The server does not support the requested data rate but will use the closest available rate 0x0004000E OPC_E_CLAMP A val
155. made with the control array be written automatically to the control engine You can implement code in your VB program for example in the code for a Button control to write the changed value to the control object using the WriteVariable method or the WriteMultiVariables method to manually update the value in the control engine Troubleshooting Delayed Responses of Software Using COM Your DCOM configuration can affect local COM operations For example setting the Default Authentication Level to None instead of to Connect can delay the connections to software applications for up to 6 minutes as the Windows NT operating system performs its security checking This affects not only MicroComputing products but other software applications that use COM such as Microsoft Word When configuring your computer for DCOM please use the entries detailed in Appendix D MicroComputing E 10 A5E00077133 01 Using the Computing Configuration Tool F The Computing Configuration tool allows you to direct communications to an S7 200 control engine You can also use the tool to choose a language for the MicroComputing Software or to set up the optional OPC server Section Description Page F 1 Selecting the Language F 2 F 2 Accessing the PG PC Interface F 3 F 3 Connecting to Your Process with the Optional OPC Server F 4 MicroComputing A5E00077133 01 F 1 Using the Computing Configuration Tool F 1
156. mission or use of this document or its contents is not permitted without express written authority Offenders will be liable for damages All rights including rights created by patent grant or registration of a utility model or design are reserved Siemens AG Bereich Automatisierungs und Antriebstechnik Disclaimer of Liability We have checked the contents of this manual for agreement with the hardware and software described Since deviations cannot be precluded entirely we cannot guarantee full agreement However the data in this manual are reviewed regularly and any necessary corrections included in subsequent editions Suggestions for improvementare welcomed Geschaeftsgebiet Industrie Automatisierungssysteme Siemens AG 2000 Postfach 4848 D 90327 Nuernberg Technical data subject to change Siemens Aktiengesellschaft A5E00077133 Preface The SIMATIC MicroComputing software uses the ActiveX also known as OLE technology of Microsoft to provide you with access to the data provided by your control engine The MicroComputing software consists of the following e A set of SIMATIC controls which are ActiveX or OCX OLE custom controls controls for accessing control engines such as an S7 200 CPU 222 e An OLE container SoftContainer for creating process forms with the SIMATIC controls MicroComputing can also operate with an optional SIMATIC S7 200 OPC OLE for Process Control Server that allows other OPC applications to
157. mputing Siemens SIMATIC DataControl Properties x General Engine Connections Events Name Select the option for a direct connection C Connect via Tag Source Tag Source _ _ _ ay Browse Enter wcS7 2 as the type of control engine Direct Connect PC Name Control Engine woS7 2 Cancel Apply Help Figure 1 19 Connecting to the Control Engine SoftContainer Example Assigning a Variable Memory Location to a Property The Data control establishes a connection between the individual SIMATIC controls and the control engine In the Properties Dialog box for the Data control you assign variables memory locations in the control engine to the individual properties of the controls Refer to Table 1 2 and assign the variables memory addresses in the control engine to the SIMATIC controls Table 1 2 Assigning Sample Addresses to the SIMATIC Controls Control Address Description Edit1 QBO Output value of first counter Edit2 QB1 Output value of second counter Edit3 QB2 Output value of third counter Button 10 0 Enable bit for first counter Button2 10 1 Enable bit for second counter Button3 10 2 Enable bit for third counter MicroComputing 1 22 A5E00077133 01 Getting Started with SIMATIC MicroComputing Use the following procedure to connect the Value property of Button control Button1 to 0 0 in the control engine 1 2
158. n a mouse button is pressed and released C 1 while the mouse cursor is over the control Error event Occurs when a property is set to an illegal value C 3 KeyDown event Occurs when the user presses a key while the control has C 4 the focus KeyPress event Occurs when an ANSI key is pressed and released while C 5 the control has the focus KeyUp event Occurs when a key is released while the control has the C 5 focus MouseDown event Occurs when a mouse button is pressed while the mouse C 7 cursor is over the control MouseMove event Occurs when the mouse cursor moves over the control C 8 MouseUp event Occurs when a mouse button is released while the mouse C 9 cursor is over the control MicroComputing A5E00077133 01 5 11 User Controls 5 3 Configuring the Property Pages of the Edit Control The Edit control allows you to display process data in a numeric format and to modify that data You associate the number display with your process by assigning a variable the process value to it You can type a new value into the display the display also updates automatically when the variable associated with it changes within the process The Edit control provides access to the memory locations of the control engine Entering a new value in the control changes the data in the control engine Note MicroComputing does not allow you to write to timers Defining How the Data is Displayed The fields on the G
159. n the Edit Default button to allow remote users to launch applications on this computer Click on the Add button to change the security settings liVPe Ol ACcess Remove Figure D 16 Configuring the Default Launch Permissions for DCOM MicroComputing A5E00077133 01 D 17 Using SIMATIC MicroComputing with DCOM ZN Caution Granting permission to access applications on a computer allows other users such as Everyone to start and stop programs or to access files on your computer Granting unlimited access to everyone on the network could cause problems from either innocent or malicious interference Always limit access to those users who are required to use the applications or files on the computer 4 Select INTERACTIVE and click on the Add button 5 Select SYSTEM and click on the Add button 6 Click on the OK button to enter these changes to the Registry Value Permissions dialog box 7 Click on the OK button of the Registry Value Permissions dialog box to enter the changes to the default access permissions The Registry Value Permissions dialog box closes and displays the Distributed COM Configuration Properties dialog box Add Users and Groups x List Names From FNE Names Domain Admins Designated administrators of the domain Domain Guests All domain guests Domain Users All domain users E Everyone All users gi INTERACTIVE Us
160. n to be a pushbutton it functions like a toggle switch Edit The Edit control provides access to memory 0 locations in the control engine You can access bytes words or double words and you can manipulate individual bits of this data Entering a new value in the Edit control changes the data in the control engine Label The Label control allows you to display a constant string It is also possible to connect the Caption property of the Label control with any process value The process value is converted into a string and displayed Slider iR The Slider control provides access to memory E locations in the control engine You can access bytes words or double words Adjusting the value of the Slider control changes the data in the control engine MicroComputing 2 4 A5E00077133 01 Setting Up the SIMATIC MicroComputing Software Chapter Overview This chapter provides the following information e Section 3 1 describes how to install and uninstall the SIMATIC MicroComputing software e Section 3 2 lists the authorization requirements for installing and running the MicroComputing software and describes how to install the authorization e Section 3 3 describes how to use the PG PC Interface to connect MicroComputing to a CP card Section Description Page 3 1 Installing and Uninstalling the MicroComputing Software 3 2 3 2 Authorization 3 4
161. nes for Programming with SIMATIC MicroComputing Using Control Arrays in VB to Connect to the Control Engine If you programmatically create a connection table using the ConnectObject method in the code in your Visual Basic program to connect the objects and then use this connection table to connect the elements of a control array to the control engine any value changed by an element of the control array is not written automatically to the control engine While the Data control automatically updates changes made by the control engine by automatically reading the changed values to the elements of the control array it does not automatically write any changed values made with the control array to the control engine e f you require that changes made with the control array utilize the Automatic Update option of the Data control to automatically write the change to the control engine Use the Properties dialog box of the Data control to create the connections for the control array instead of writing code using the ConnectObject method in your VB program to make the connections When you use the Properties dialog box of the Data control to browse to the elements of the control array and assign variables in the control engine changes made with the elements of the control array are automatically written to the control engine Ensure that the Automatic Update option for the Data control is selected e f you do not require that changes
162. ng each result to a temporary integer variable and then comparing Shift to a bit mask Use the And operator with the Shift argument to test whether the condition is greater than 0 indicating that the modifier was pressed MicroComputing A5E00077133 01 Events C 9 MouseDown Event Applies to Button Edit Label Slider This event occurs when a mouse button is pressed while the mouse cursor is over the control Syntax MouseDown short Button short Shift OLE_XPOS_PIXELS x _ OLE_YPOS_PIXELS y The MouseDown event has these parts Part Description Button An integer that identifies the button that was pressed to cause the event The button argument is a bit field with bits corresponding to the left button bit 0 right button bit 1 and middle button bit 2 These bits correspond to the values 1 2 and 4 respectively Only one of the bits is set indicating the button that caused the event Shift An integer that corresponds to the state of the SHIFT CTRL and ALT keys when the button specified in the button argument is pressed or released A bit is set if the key is down The shift argument is a bit field with the least significant bits corresponding to the SHIFT key bit 0 the CTRL key bit 1 and the ALT key bit 2 These bits correspond to the values 1 2 and 4 respectively The shift argument indicates the state of these keys Some all or none of the bits can be set indicating that some all or none
163. ngine Caution Failing to disable the timers in your program could cause timer generated connections to remain connected allowing these connections to continue to write data to the control engine This could cause the control engine to operate erratically which could potentially cause damage to equipment and injury to personnel To ensure that all connections are disconnected when your program closes always disable all timers before the End statement in the Form_Unload subroutine In order to access process data the SIMATIC controls provided by MicroComputing Button Edit Label and Slider must first establish a connection through the Data control Figure 4 1 shows the relationship between the Data control and the other SIMATIC controls You use the Connections tab of the Data control to assign a variable the memory location to the Value property of each control The Data control configures the control engine to check the memory locations of the assigned variables at a specified rate in milliseconds If there is a change in the value the new value is written to the Data control The Data control then writes the new value to the other controls Third party control OPC Client optional Button control Edit control Label control Slider control OPC Server optional Data control MicroComputing Control engine S7
164. ngine simultaneously False Default object connects only to the control engine specified in the ControlEngine property Offset Property Applies to Edit Slider The Factor and Offset properties specify the scaling factor and the offset used when the scale by formula option has been enabled Note The ScaleMode property must be set to wByFormula 1 for the Factor and Offset properties to have any effect MicroComputing A5E00077133 01 Properties and Methods B 35 You can use a formula to scale the value In the following formula Value is similar to the contents of the Value property if the control is connected to the control engine Factor is the value of the Factor property Offset is the value of the Offset property and DisplayValue is also the contents of the Text property Value Factor Offset DisplayValue Syntax object offset value The Offset property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A floating point value that defines the factor or the offset for the scaling formula Note The default value of the factor is 1 0 and the default value of the offset is 0 0 PCName Property Applies to Data This property selects the name of a remote computer PC in order to connect to a control engine over a network such as a local area network LAN Syntax object PCName
165. nnected to a real process These exercises are for practice only Do not modify any data that could cause process equipment to operate erratically Always install a physical emergency stop circuit for your machine or process Changing the Operating Mode of the SoftContainer 6 6 The SoftContainer provides two operating modes that are not related to the operating modes of the control engine e Design mode allows you to insert and modify the controls in the process form You can change the properties in Design mode e Run mode connects the controls to the control engine You can modify values in the control engine but you cannot move or modify the properties for the controls Note The controls must have a control engine that is running in order to access the process data Be sure that the control engine is running before you switch the SoftContainer from Design mode to Run mode MicroComputing A5E00077133 01 Designing Process Forms with the SoftContainer Use the following procedure to change the operating mode of the container 1 Make certain that the S7 200 control engine is running For information about starting the S7 200 refer to the S7 200 Programmable Controller System Manual 2 Click on the Run button to change from Design mode to Run mode Figure 6 5 The status bar shows that the container is in Run mode Notice that the Data control becomes invisible in Run mode In Run mode you can use the controls
166. nt 002 eee eee ee C 9 C 12 ValueChanged Event 06 c cece cette eens C 10 Using SIMATIC MicroComputing with DCOM 0ccccsseeseeeeeeee D 1 Using DCOM to Provide Remote Access 0 2 0eeeeeeeeee D 2 D 2 Configuring the Permissions for the Server Computer D 3 D 3 Configuring the Permissions for the Client Computer D 13 D 4 Troubleshooting erari EEE tee eee eee D 19 Guidelines for Programming with SIMATIC MicroComputing E 1 E 1 Guidelines for Third Party Containers 02 0c cece eee eee E 2 E 2 Programming Guidelines 6 2 0c cee ee eee eee eee E 3 E 3 Guidelines for Creating Custom ActiveX Controls 005 E 5 E 4 Using a Custom ActiveX Control with a Data Control E 6 E 5 Known Problems for MicroComputing 0 0 eeeee ee eee E 9 Using the Computing Configuration Tool 00ee cece eee ees F 1 F 1 Selecting the Language cece ee eee a anena F 2 F 2 Accessing the PG PC Interface cece cece eee F 3 F 3 Connecting to Your Process with the Optional OPC Server F 4 MicroComputing A5E00077133 01 Getting Started with SIMATIC 1 MicroComputing Chapter Overview The SIMATIC MicroComputing software provides you with a variety of ways to access and to use data from a control engine such as an S7 200 CPU 222 This chapter provides some easy programm
167. nt MW2 by 2 and transfer the output to QB1 I0 1 SUB_I MOV_B M6 1 EN ENO EN ENO MW2 IN1 OUT MW2 MB3 IN OUT QB1 2 IN2 Network 3 Add 3 If 10 2 is ON increment MW4 by 3 and transfer the output to QB2 10 2 ae MOV_B M6 2 EN ENO EN ENO MW4 IN1 OUT MW4 MB5 IN OUT QB2 3 IN2 Figure 1 2 Sample Program Counters for the Application Examples for the S7 200 MicroComputing A5E00077133 01 Getting Started with SIMATIC MicroComputing 1 2 1 4 Creating a Sample I O Panel The Data control allows any ActiveX container Such as Visual Basic 5 0 to access data in the control engine You can use the SIMATIC controls provided by MicroComputing with Visual Basic to create a simple I O panel that interacts with a program running on a control engine To create this sample application you need the following items e Microsoft Visual Basic 5 or higher e SIMATIC controls from MicroComputing e Control engine such as an S7 200 CPU 222 e Sample program see Section 1 1 e STEP 7 Micro Win to download the program to the S7 200 Warning Using the timer function improperly or using breakpoints in Visual Basic with MicroComputing can cause problems that could potentially cause your computer or application to crash or lock up Depending on the configuration this could cause the application to lose communication with the control engine This could cause unpredictable process operation which c
168. nt Name Process Variable Update Rate DeadBand End MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control 4 8 Sample Program for Responding to Events You can create a program that responds to events in the control engine In this sample program eight lights correspond to the eight events which are defined in a connection table See Figure 4 10 The events are connected to the status of memory location MBO a change in the value stored in MBO generates a set of events named for each bit in the byte As shown in Figure 4 10 the program also contains the following elements e Data control S7Data1 for connecting to the control engine e Timer Timer1 that increments the value stored in MBO which then causes the control engine to generate the events e Command button cmdStartEvent for starting or stopping the timer thereby starting or stopping the generation of events VB5 Programming Example xl Light 0 to Light 7 These VB objects change color to display the events stored in MBO cmdStartEvent This command ee button starts or stops the Start Events events S7Data1 Connects these elements to the control engine Timer1 generates a ReadVariable and WriteVariable at fixed intervals Figure 4 10 Sample Program for Responding to Events in the Control Engine Caution Failing to disa
169. ntrol if the value is above or below the ranges entered for the transformation the transformation uses the formula to extrapolate the scaled value The upper and lower limits are not minimum and maximum values for the data there is no limit checking with the scaling factors Figure 5 21 shows the display values of the Slider control Ticks unit markings Min Max fesse Figure 5 21 Elements of the Slider Control MicroComputing A5E00077133 01 5 31 User Controls Defining the Appearance of the Slider Control The Picture tab of the Properties dialog Figure 5 22 allows you to select the pictures for the Slider control In the Properties field select KnobPicture and then click on the Browse button to select the picture graphic used for the indicator on the control Next select Picture and click on the Browse button to select the picture graphic used for the control MicroComputing provides additional bitmaps Browse to the WinAC WinCP bitmap directory Note Picture can be changed only if you have selected Style Graphical on the General tab but KnobPicture can be changed for both Style Standard and Style Graphical Siemens_SIMATIC_UserControls Slider Properties x General Scaling Picture Color Name Properties Preview KnobPicture Browse Clear Cancel Apply Help Figure 5 22 Slider Control Properties Picture Tab MicroComputing 5
170. of that name is automatically applied to the new control For instance if you remove a control called Edit1 and later insert a new Edit control the default name for the new control is Edit1 and the new control inherits the existing Edit connection Use the Delete button if you want to prevent new controls from inheriting a previously configured connection from the Controls list select the instance whose connection you want to delete and click on the Delete button Note If you remove a control or change your mind about adding a control after you have already configured a connection for it using the Add button you can only delete the connection to it if there is no control in the ActiveX container that uses the name specified in the connection Delete the connection before you add any other control that uses the name that is specified in the connection You cannot use the Delete button to remove a connection to a control that is present in the ActiveX container MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control 4 5 Filtering the Properties for the ActiveX Controls The Data control provides a filter that allows you to display a subset of the properties for the controls For example you may want to display only the Enabled and Value properties and avoid scrolling through all of the other properties for each control Use the following procedure for filtering the properties 1 Access th
171. ol still shows values in the control engine but the user is unable to change them Default You can edit the text in the control B 32 Max and Min Properties Applies to Edit Slider If the ScaleMode property is wByRange or wScaleNone these properties return set the maximum minimum scaled value of the control Syntax object Max value object Min value The Max and Min properties have these parts Part object value MicroComputing A5E00077133 01 Description An object expression identifier for the specific SIMATIC control that evaluates to an object in the Applies To list A value or constant that specifies maximum minimum scaled value of the control B 21 Properties and Methods B 33 B 34 B 22 MultipleEngines Property Note This property applies only to S7 300 S7 400 and WinLC control engines It has been disabled for SIMATIC MicroComputing Applies to Data This property specifies whether the control connects to a specific control engine or connects to several control engines Syntax object MultipleEngines value The MultipleEngines property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A Boolean expression that specifies whether object connects to one or to several control engines The settings for value are Setting Description True object connects to more than one control e
172. ollowing guidelines e Always kill disable the timers in the Form_Unload subroutine Otherwise a timer can trigger an event while the VB program is shutting down this condition could cause your computer or your application to crash lock up or to continue running invisibly e f you start your timer in the Form_Load subroutine the timer event could occur before the other objects have been instantiated In order to ensure that the objects have been properly instantiated always start a timer in the Form_Load subroutine with a large interval such as 1 or 2 seconds to allow the objects to be properly instantiated Subsequent timer intervals can be set to shorter intervals MicroComputing A5E00077133 01 A 7 Memory Areas of the S7 200 Controllers A 3 Address Descriptions of the Memory Areas Addressing the Process Image Input Register I The S7 200 samples the physical input points at the beginning of each scan cycle and writes these values to the process image input register You can access the process image input register in bits bytes words or double words Format Bit I byte address bit address I0 1 Byte Word Double Word If size starting byte address IB4 Addressing the Process Image Output Register Q At the end of the scan cycle the S7 200 copies the values stored in the process image output register to the physical output points You can access the process image output register in bits bytes words or
173. olor property Returns or sets the background color B 5 BorderStyle property Selects the border style fixed single or none B 5 DataFormat property Defines the storage type used for converted values B 10 DisplayValue property Returns the scaled value for the control B 14 Enabled property Determines whether the control reacts to changes of B 15 the Value property and fires events MicroComputing A5E00077133 01 User Controls Table 5 4 Properties and Methods of the Edit Control continued Property or Method Description Page Factor property Specifies the scaling factor used when the B 15 scale by formula option has been enabled used with ScaleMode property Font property Returns a Font object for the main font of the control B 18 ForeColor property Returns or sets the foreground color used to display B 18 text and graphics Locked property Sets the control to a read only state By default the B 20 control is not in locked mode so the user can enter numbers Max property Returns sets the maximum scaled value of the control B 21 if the ScaleMode property is wByRange or wScaleNone Min property Returns sets the minimum scaled value of the control B 21 if the ScaleMode property is wByRange or wScaleNone Offset property Specifies the offset used when the scale by formula B 22 option has been enabled used with ScaleMode property Precision property Selects the precis
174. ome conditions Visual Basic 5 0 can cause an exception when closing This will not affect the operation of MicroComputing Programming Guidelines The following guidelines relate specifically to Visual Basic however they can also apply to other programming languages Warning Using the timer function improperly or using breakpoints with your subroutines that access MicroComputing can cause problems that could potentially cause your computer or application to crash or lock up Depending on the configuration this could cause the application to lose communication with the control engine This could cause unpredictable process operation which could result in death or serious injury to personnel and or damage to equipment Always install a physical emergency stop circuit for your machine or process Using Timers in Your Program The Timer function in Visual Basic version 5 allows a timer to interrupt code in progress within the same thread which can cause problems with potentially serious consequences If you use VB timers with MicroComputing observe the following guidelines e Always kill disable the timers in the Form_Unload subroutine Otherwise a timer can trigger an event while the VB program is shutting down this condition could cause your computer or your application to crash lock up or to continue running invisibly e f you start your timer in the Form_Load subroutine the timer event could occur before the other o
175. omputing A5E00077133 01 Slider 5 28 5 30 Data control adding an event 4 11 configuring connection properties 4 3 configuring for single control engine 4 4 connection table 4 12 connections containers E 2 custom Activex controls E 5 4E 9 description error codes 4 27 4 29 events 4 26 methods Connect ConnectName B 7 ConnectObject Disconnect B 13 PropertyChangedName B 25 PropertyChangedObject B 25 ies 4 26 4 27 Activated AutoConnect AutoConnectTimeout B 4 ControlEngine B 10 DefaultDeadband B 12 DefaultUpdateRate MultipleEngines B 22 PCName B 23 ReadMultiVariables ReadVariable B 28 ShowErrorBoxes B 30 WriteMultiVariables method WriteVariable method B 39 sample program 1O panel 1 4 Microsoft Excel 1 16 other controls VBScrollbar 1 13 1 16 SoftContainer 120126 STEP 7 Micro WIN program 1 3 selecting control engine A SoftContainer operating mode 6 ConnectionError ValueChanged C 10 Data types S7 200 controllers A 6 Databases sharing data using OPC F 5 DataType property B 10 Index 3 Index DbIClick event C 2 DCOM client and server D 1 D 21 configuration editor client configuuration D 13 D 4 server configuuration troubleshooting D 19 DefaultDeadband property B 12 DefaultUpdateRate property B 12 Deinstall 3 3 See also Uninstalling Deleting a connection Direction property B 13
176. omputing is OPCServer MicroComputing The OPC option for MicroComputing is based on the OLE COM technology from Microsoft For more information about OPC refer to the OPC specification OLE for Process Control Data Access Standard version 2 0 from the OPC Foundation For more information about the SIMATIC OPC server refer to the OPC Server Interface Manual 1 F 5 Using the Computing Configuration Tool Configuring the OPC Connection F 6 You can use the optional OPC application to connect to a control engine over a network such as a local area network LAN The Direct Connection option Figure F 5 allows you to connect to a specific control engine on a specific computer Use the following procedure to configure the OPC connections 1 Select the Simatic gt PC Based Control gt Computing Configuration menu command from the Start menu to display the Computing Configuration dialog box Select the OPC tab See Figure F 5 2 Select the Direct Connection option and enter the name of the control engine For example As shown in Figure F 5 weS7 2 is the S7 2xx with a node address of 2 3 Click on the Apply button to enter the data and click on the OK button to close the dialog box Fz Computing Configuration Eg OPC Language Connection Connection Connection via Tag Source Browse Tag Source Direct Connection Computer Name Control Engine wcS7 2 OK Cancel Apply He
177. on tab 3 Click the Setting the PG PC Interface button Refer to Section 3 3 for information about using the Setting the PG PC Interface to configure the CP card as an access point for MicroComputing Computing Configuration Language Connection Rae Figure F 2 Accessing the PG PC Interface Application MicroComputing A5E00077133 01 F 3 Using the Computing Configuration Tool F 3 F 4 Connecting to Your Process with the Optional OPC Server The optional OPC OLE for Process Control server for SIMATIC MicroComputing provides a standard mechanism for communicating to numerous data sources You can use the optional OPC server to communicate with the S7 200 control engine and to provide access to the process data Note The S7 200 OPC Server optional software package provides a server that allows any OPC client application to access data in the S7 200 control engine MicroComputing does not provide any OPC client application MicroComputing implements only the mandatory interfaces as defined in the version 2 0 specification from the OPC Foundation The interfaces defined in that specification as custom may be implemented at a later date OPC allows you to access data from the plant floor and integrate the data into your existing business systems You can use off the shelf tools such as SCADA packages databases spreadsheets to assemble a system that meets your needs As shown in Figure F 3 OPC
178. only be used if the Style property is set to 1 wGraphical Syntax object StretchMode value The StretchMode property has these parts Part Description object The identifier for the specific control value A constant that determines the stretch mode as described in Settings The settings for value are Setting Description 0 wCentered The bitmap is centered in the control 1 wResizelmage Default The bitmap is resized stretched or shrunk to fit the control 2 wResizeFrame The frame of the control is resized to the size of the bitmap 3 wSmartTile The bitmap is expanded to fit the control by replicating adjacent rectangles This setting works best with a single color bitmap with a border 4 wTile The bitmap if smaller than the control is duplicated and tiled to fill the control MicroComputing A5E00077133 01 Properties and Methods B 49 Style Property Applies to Button Slider Label This property returns or sets the style standard or graphical of the control Syntax object Style value The Style property has these parts Part Description object The identifier for the specific control value A constant that determines the style as described in Settings The settings for value are Setting Description 0 wStandard uses internal drawing methods 1 wGraphical Default uses bitmaps B 50 Text Property Applies to Edit This property determines the text displayed by the control Syntax obje
179. operty has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A floating point value that defines the factor for the scaling formula Note The default value of the factor is 1 0 and the default value of the offset is 0 0 FalseCaption Property Applies to Button This property determines the text that is displayed in the control when the Value property is False equal to 0 or Off Syntax object FalseCaption string The FalseCaption property has these parts Part Description object An object expression that evaluates to an object in the Applies To list string Text that determines the active or inactive text of the control MicroComputing A5E00077133 01 Properties and Methods B 23 FalseColor Property Applies to Button This property determines the color of the control when the Value property is False equal to 0 or Off Syntax object FalseColor color The FalseColor property has these parts Part Description object An object expression that evaluates to an object in the Applies To list color A value or constant that determines the background or foreground colors of an object The settings for value are Setting Description Standard Colors Colors specified by using the RGB Color palette Windows System Colors specified by system color constants depending on Colors the container for example colors listed in the Visual Basic VB
180. or check the values that you have written to the control C0040004 The set value at the Text property is invalid This is a common error which occurs if the user enters an incorrect value in the control Normally it means that the entered text contains characters that are not allowed The allowed characters are dependent on the DataType used To correct the error reenter a value that is allowed C0040005 The other OLE components could not be found An error occurred in the installation of MicroComputing or of Windows itself The control is unable to access the other necessary parts that are needed for the software to work properly To correct the error check the installation and the access point Computing C0040006 The Microsoft standard controls could not be created Something went wrong with the installation of MicroComputing or Windows itself The control is unable to access the other necessary parts that are needed for the software to work properly To correct the error check the installation C0040010 The limit check cannot proceed because the RawMin is greater than the RawMax This error can only appear if you are using the Edit control with limit checking checking for upper and lower limit In this case it is possible that you ve specified a lower limit RawMin that is greater than the upper limit RawMax To correct the error specify a valid range for limit checking The low
181. ou need to have downloaded the sample program see Section 1 1 to the control engine Inserting SIMATIC Controls into the Process Form To start the MicroComputing software select the Simatic gt PC Based Conirol gt Computing Softcontainer menu command from the Start menu The SoftContainer opens with the default process form S7Soft1 You will insert the SIMATIC controls into this process form See Figure 1 17 1 In the toolbar click on the icon for the Data control Moving the arrow pointer over an icon and then keeping it stationary for a second will display a tooltip for identifying the icon 2 Move the arrow pointer to the open process form Notice that once the cursor moves inside the process form the arrow pointer changes to a cross hair pointer 3 Click the left mouse button to insert the Data control m S7SoftContainer S7Soft1 File Edit View Mode Options Window Help Dieta eee sib Se S7Softt Select the control from the toolbar The arrow pointer changes to a cross hair pointer within the container Click the left mouse button to insert the control Ready Design Data1 l Figure 1 17 Inserting a SIMATIC Control into the SoftContainer MicroComputing 1 20 A5E00077133 01 Getting Started with SIMATIC MicroComputing Repeat these steps to insert three Button controls and three Edit controls For more inform
182. ould result in death or serious injury to personnel and or damage to equipment Always install a physical emergency stop circuit for your machine or process Concerning VB timers The Timer function in Visual Basic version 5 allows a timer to interrupt code in progress within the same thread which can cause problems with potentially serious consequences If you use VB timers with MicroComputing observe the following guidelines e Always kill disable the timers in the Form_Unload subroutine Otherwise a timer can trigger an event while the VB program is shutting down this condition could cause your computer or your application to crash lock up or to continue running invisibly e f you start your timer in the Form_Load subroutine the timer event could occur before the other objects have been instantiated In order to ensure that the objects have been properly instantiated always start a timer in the Form_Load subroutine with a large interval such as 1 or 2 seconds to allow the objects to be properly instantiated Subsequent timer intervals can be set to shorter intervals MicroComputing A5E00077133 01 Getting Started with SIMATIC MicroComputing Inserting the SIMATIC Controls into the Toolbox for Visual Basic Use the following procedure to create the sample I O panel 1 Open a standard Visual Basic project Select the File gt New Project menu command to display the New Project dialog box Select the Standa
183. our local Siemens representative MicroComputing A5E00077133 01 3 5 Setting Up the SIMATIC MicroComputing Software 3 3 3 6 Connecting MicroComputing to a Communications Processor CP Card In order for MicroComputing to use a communications processor CP card for connecting to the S7 200 control engine you must configure the CP card as the access point for MicroComputing Use the following procedure to configure the CP card as the access point for MicroComputing 1 From the Windows Start menu select Start gt Simatic PC Based Control gt Computing Configuration 2 In the Computing Configuration dialog box select the Connection tab 3 Click the Setting PG PC Interface button to access the Set PG PC Interface dialog box Figure 3 1 From the Access Point of Application drop down list select Computing 5 In the Interface Parameter Assignment Used field select the entry that corresponds to your card and network type Set PG PC Interface x Access Path Access Point of the Application Computing gt CPU5611 PPI zi Standard for STEP 7 Interface Parameter Assignment Used CP416 2 DP ISA local CP5611 MPI CP5611 PPI CP5611 PROFIBUS PC PPI cable PPI Copy Delete Communication with WinAC components in this PG PC Interfaces Add Remove Select OK Cancel Help Figure 3 1 Setting the PG PC Interface MicroComputing A5E00077133 01 Accessing the P
184. property determines how far the slider indicator moves when the control has focus and you press the Page Up or Page Down key The Value property is increased by LargeChange if you press the Page Up key or click to the right of above the indicator It is decreased by LargeChange if you press the Page Down key or click to the left of below the indicator Syntax object LargeChange value The LargeChange property has these parts Part Description object An object expression identifier for the specific SIMATIC control that evaluates to an object in the Applies To list value A value or constant that determines the amount of change Locked Property Applies to Button Edit Slider If the control is locked it is in a read only state The user is unable to change any values but the current value is still displayed By default the control is not in locked mode so you can enter numbers Syntax object Locked boolean MicroComputing A5E00077133 01 Properties and Methods The Locked property has these parts Part object boolean Description An object expression that evaluates to an object in the Applies To list A Boolean expression that specifies whether the control can be edited The settings for boolean are Setting True False Description You can scroll and highlight the text in the control but you cannot edit it Changes to the Value property are reflected This means that the contr
185. puting authorization guidelines See README TXT on the authorization disk Removing the MicroComputing software 3 3 Requirements computer Design mode SoftContainer 6 6 6 8 MicroComputing A5E00077133 01 Index Run mode SoftContainer 6 4 6 8 Run mode SoftContainer appearance of the Data control 4 1 4 3 S S7 200 controllers configuring connection to CP card 3 6 data types A 6 memory areas OPC controls F SIMATIC controls Edit 5 12 5 23 Label 5 22 5 26 Slider 5 28 Sample programs custom Activex control E 6 E 9 O panel 1 4 Microsoft Excel 1 16 other controls VBScrollbar read write with Data control E 5 SoftContainer 1 20 1 26 STEP 7 Micro WIN program 1 3 ScaleMode property E20 Sequence control relays addressing memory area A 12 Client configuration DCOM D 3 Server configuration DCOM Server object OPC interfaces server name Setting the language F 2 Setting the PG PC Interface 3 6 Setup program authorization 3 4 3 5 memory requirements 2 3 Sharing data among applications OPC controls F OPC specification SIMATIC controls 4 1 ShowErrorBoxes propert ShowMinMax property SIMATIC controls Button 5 4 5 8 Button control description toolbar button MicroComputing A5E00077133 01 Slider control 2 4 5 28 Data description toolbar button Data control 4 1 Edit Edit control description 5 12
186. r A 8 process image output register A 8 sequence control relay memory area A 12 special memory bits Index 1 Index timer A 10 variable memory A 9 Alignment property Analog inputs addressing A 8 Analog outputs addressing A 9 Appearance property B 3 Assigning a variable from Visual Basic 1 6 Authorizing the MicroComputing software procedure 3 5 See also README TXT on the authorization disk guidelines 3 5 removing the authorization running without authorization transferring the authorization 35 AUTHORS EXE installation MicroComputing 3 2 MicroComputing eae Ar removing the MicroComputing authorization 3 5 transferring the Mico Computing authorization AutoConnect property B AutoConnectTimeout oper B 4 B BackColor property B 5 Bit access S7 200 memory areas A 4 Bit memory addressing a 9 S7 200 memory area BorderStyle property B 5 Button control description 2 4 5 4 MouseDown C 7 MouseMove C 8 MouseUp ox methods AboutBox B 1 Index 2 FalseColor B 17 B 17 PushButton B 26 StretchMode Style B 33 TrueCaption TrueColor Value properties and methods 5 10 toolbar button Byte access S7 oo memory areas A 4 Byte address format S7 200 A Byte memory A 4 C Caption properties B 6 Change event C 1 Connect method Changing the language F 2 Click event Client epolication OPC
187. r the data there is no limit checking with the scaling factors MicroComputing A5E00077133 01 5 15 User Controls Defining the Typeface of the Text 5 16 The Font tab of the Properties dialog Figure 5 10 allows you to define the typeface and size for the text of the Edit control e Font Select the typeface for the text from a list of standard typefaces e Size Select the point size or enter a specific point size for the text e Effects Select other typographical options boldface italic underline or strikeout for the text The Sample Text field displays the selection of the Font property Propertie x 0 MS Sans Serif xy 8 25 rf MS Sans Serif Figure 5 10 Edit Control Properties Font Tab MicroComputing A5E00077133 01 User Controls Defining the Color of the Edit Control The Color tab of the Properties dialog Figure 5 11 allows you to define the colors for the two states and for the text of the Edit control Select the Property BackColor or ForeColor and then select the color to be displayed for that property from the color palette You can choose from a palette of standard colors or you can create custom colors Note BackColor and ForeColor can be changed only if you have selected Style Standard on the General tab but ForeColor Text color can be changed for both Style Standard and Style Graphical Siemens_SIMATIC_UserControls La
188. r you specify the address of the high speed counter using the memory type HC and the counter number such as HCO The current value of the high speed counter is a read only value and as shown in Figure A 7 can be addressed only as a double word 82 bits Format HC high speed counter number HC1 MSB LSB ai HC2 0 Most significant Least significant Byte 3 Byte 2 Byte 1 Byte 0 HC 2 L High speed counter number Area identifier high speed counter Figure A 7 Accessing the High Speed Counter Current Values Addressing the Sequence Control Relay S Memory Area Sequence Control Relay bits S are used to organize machine operations or steps into equivalent program segments SCRs allow logical segmentation of the control program You can access the S bits as bits bytes words or double words Format Bit S byte address bit address 3 1 Byte Word Double Word S size starting byte address SB4 MicroComputing A 12 A5E00077133 01 Properties and Methods B B 1 AboutBox Method Applies to Button Edit Label Slider This method displays the About message box for the control Syntax object About Box The AboutBox method has these parts Part Description object An object expression that evaluates to an object in the Applies To list B 2 Activated Property Applies to Data This property allows you to specify whether or not all connections are activated Syntax obje
189. r MicroComputing Detecting the Loss of an MPI Connection The Data control does not detect the loss of an MPI connection Use the following procedure to detect a loss of connection 1 Include a timer in your program 2 At aperiodic interval such as 1 second use the ReadVariable method of the Data control to read a specific variable such as MBO 3 If you receive an error message that the ReadVariable method failed you have lost the MPI connection Your program can then respond to the lost connection No PPI Connection In order to use a PC PPI cable with SIMATIC MicroComputing running on Windows 95 98 you must decrease the size of the receive buffer for the COM port Use the following procedure 1 From the Windows desktop right click the My Computer icon and choose the Properties menu item 2 From the System Properties dialog box select the Device Manager tab 3 From the Device Manager tab locate and double click the Ports icon 4 From the expanded Ports branch locate and double click the Communication Port icon for the specific COM port 5 From the Communication Port Properties dialog box choose the Port Settings tab 6 From the Port Settings tab click Advanced 7 Examine the slider for Receive Buffer If it is not at the lowest possible setting 1 move it to the lowest setting 8 Choose OK to confirm your selections and close the open dialog boxes MicroComputing A5E00077133 01 E 9 Guideli
190. r graphical of the B 33 control SmallChange property Determines how far the slider indicator moves when B 31 the control has focus and you press the up down or right left arrow keys StretchMode property Determines the resize mode of the graphical element B 32 for the control Ticks property Sets the number of ticks unit markers B 34 Value property Contains the value that is linked to the control engine B 36 MicroComputing A5E00077133 01 5 35 User Controls Events of the Slider Control 5 36 The control responds to the events listed in Table 5 10 Table 5 10 Events of the Slider Control Event Description Page Change event Occurs when the value of the Value property changes C 1 Click event Occurs when a mouse button is pressed and released C 1 while the mouse cursor is over the control DblClick event Occurs when a mouse button is double clicked while the C 2 cursor is over the control Error event Occurs when a property is set to an illegal value C 3 KeyDown event Occurs when the user presses a key while the control has C 4 the focus KeyPress event Occurs when an ANSI key is pressed and released while C 5 the control has the focus KeyUp event Occurs when a key is released while the control has the C 5 focus MouseDown event Occurs when a mouse button is pressed while the mouse C 7 cursor is over the control MouseMove event Occurs when the mouse cursor moves over
191. rd EXE icon and click on the OK button 2 Select the Project gt Components menu command to display the Components dialog box 3 As shown in Figure 1 3 select the following SIMATIC controls in the Components dialog box Data control Siemens SIMATIC Data control User controls Siemens SIMATIC User Controls The icons for Button Label Slider and Edit appear in the Icon tab 4 Click on the Apply button The SIMATIC controls that you selected appear in the toolbox for Visual Basic Click on the OK button to close the Components dialog box Components x Controls Designers l Insertable Objects e Click on the Data control and the User controls Siemens S7Wcinbx Control al Siemens SIMATIC Data Control e Click on the Apply button to add the A Siemens SIMATIC User Controls control to the VB toolbox Third Party Control e Click on the OK button to close the Third Party Control Components dialog box Third Party Control Third Party Control Browse Selected Items Only Siemens SIMATIC Data Control Location CASIEMENS Common OCX S7WCPC3X OCX Cancel Apply Figure 1 3 Adding SIMATIC Controls to the VB Toolbox MicroComputing A5E00077133 01 1 5 Getting Started with SIMATIC MicroComputing Creating the VB Form for the Sample I O Panel 1 Insert one Data control three Edit controls and three B
192. re 3 2 Edit 5 12 removing the authorization 3 5 Label 5 22 uninstalling the software Slider 5 28 5 30 Process data SoftContainer OPC FF OPC F 51F 7 SIMATIC controls client application 2 3 F 5 Button group object interfaces F 5 Data 4 interfaces of the group object F 5 Edit interfaces of the server object name of the server object F 5 OPC specification Fe server object interfaces Process image input register addressing 7 200 controllers ical Process image output register addressing AB name F 5 7 200 controllers sharing data among applications F 5 Processor CPU PC requirements 2 3 used with MicroComputing Product overview OPC Ole for Process using the Data control 2 3 Control Operating system requirements 2 3 ProgID F 5 Overview OPC controls 2 3 Programmable Logic Controller PLC See Control engine Programmatic identifier F 5 P PCName property B 23 Pentium system requirements 2 3 Performance connect disconnect B 4 B 7 B 9 B 14 E4 Data control for critical data E 4 Personal computer PC system requirements MicroComputing A5E00077133 01 Index 7 Index Programming apne dia B 4 B 7 B 9 B 14 ates guidelines E 2 custom ActiveX controls E Data control for critical data E 4 sample Meow 1O panel 1 4 AAO z Microsoft Excel 1 16 SoftContainer STEP 7 tigre WIN aerial timers Properes AboutBo
193. re Color Name O SSS Ok Cancel_ Apply Help Figure 5 20 Slider Control Properties Scaling Tab No Scaling If you choose the default 0 wNoScaling the Display Value shows a Max Value of 100 and a Min Value of 0 MicroComputing 5 30 A5E00077133 01 User Controls Scaling by Formula If you choose to scale by formula 1 wByFormula enter the following information e Factor represents a percentage of change scaling factor from the value in the control engine to the value in the Slider control e Offset represents a fixed value to be added to the scaled result before being displayed The Slider control uses the following formula to calculate the scaled value Value x Factor Offset Display Value where Value the value stored in the control engine Factor the scaling factor Offset the offset factor Display Value the value displayed in the control When the Slider control writes data to the control engine the inverse of the formula is used to scale the value Scaling by Range If you choose to scale by range transformation 2 wByRange specify the upper RawMax and lower RawMin values for a source range Value fields and for a destination range Display Value field The Slider control then transforms the value from one range into the equivalent value for the other range These ranges define only the relationship between the data in the control engine and the data in the Slider co
194. riables for the Edit Control Note While MicroComputing allows you to specify a data type when you assign a variable to one of the properties of a control remember that the Button control can be assigned only to an individual bit in the control engine The only valid data type for a Button control is BOOL MicroComputing A5E00077133 01 5 3 User Controls 5 2 Configuring the Property Pages of the Button Control The Button control allows you to associate a button display with a data bit from your process You associate the button with your process by assigning a variable namely the desired bit location to it You can then toggle the button display to change the state of the bit the button color also changes automatically as the state of the bit changes within the process The Button control provides access to individual memory bits in the control engine and has two states of animation 0 off or 1 on Clicking on the Button control changes the data in the control engine The Button control reads and writes Boolean single bit values Defining the Caption and Enabling the Button Control 5 4 The General tab of the Properties dialog Figure 5 3 allows you to define the two captions for the Button control e Alignment determines the alignment of the text left center or right e TrueCaption Enter the text to be displayed in the control when the bit is true equal to 1 or on e FalseCaption Enter t
195. rocess Data with the Data Control Chapter Overview MicroComputing 4 The Data control provides the connection between your ActiveX controls and the control engine You can configure the properties for the Data control For the SoftContainer provided by SIMATIC MicroComputing double clicking on the Data control displays the Properties dialog box For other container applications such as Microsoft Visual Basic access the properties as for any other control in that container for example by using the right mouse button Open the context menu for the Data control by clicking the right mouse button and selecting the Properties menu command Section Description Page 4 1 Connecting the SIMATIC Controls to the Control Engine 4 2 4 2 Configuring the Connection Properties for the Data Control 4 3 Selecting the Control Engine for the Data Control 4 4 Connecting the ActiveX Controls to the Control Engine 4 5 Filtering the Properties for the ActiveX Controls 4 6 Configuring Custom Events 4 7 Creating a Connection Table 4 12 4 8 Sample Program for Responding to Events 4 15 4 9 Sample Program for Reading and Writing Data 4 20 4 10 Sample Program for Reading and Writing Boolean Data 4 25 4 11 Properties Methods and Events of the Data Control 4 26 A5E00077133 01 4 1 Accessing the Process Data with the Data Control 4 1 ZN 4 2 Connecting the SIMATIC Controls to the Control E
196. rocessor CP or PC PPI Cable 7 200 Control Engine D seen Figure 2 1 Accessing the Process Data with MicroComputing MicroComputing A5E00077133 01 Product Overview System Requirements To run the SIMATIC MicroComputing software it is recommended that your computer meet the following criteria e A personal computer PC with the following Pentium processor running at 166 MHz or faster recommended 64 Mbytes RAM Microsoft Windows NT version 4 0 with Service Pack 5 or higher or Windows 95 98 e A color monitor keyboard and mouse or other pointing device which are supported by Microsoft Windows NT or Windows 95 98 e A hard drive with 20 Mbytes of free space e Atleast 1 Mbyte free memory capacity on drive C for the Setup program Setup files are deleted when the installation is complete To connect MicroComputing to an S7 200 control engine you must have either a PC PPI cable or a CP card supported by the S7 200 controllers Refer to the S7 200 Programmable Controller System Manual for more information Special Notes for Using a PC PPI Cable with Windows 95 98 If you are using a PC PPI cable with Windows95 98 set the size of the receive buffer to minimum on the serial port to which the cable is connected Refer to Section E 5 for directions Note Windows NT
197. rol indicator Note If the value of the Value property changes the Change event will be generated Syntax object Value value The Value property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A Variant that specifies the value of the control MicroComputing B 36 A5E00077133 01 Properties and Methods B 56 WriteMode Property Applies to Edit This property determines how the control responds when the user enters a new value If the write mode is set to Automatic 0 the value if valid is written automatically into the Value property and to the control engine If the write mode is Manual 1 the value is not written to the value property unless your program code calls the method Write at the control Syntax object WriteMode value The WriteMode property has these parts Part Description object An object expression that evaluates to an object in the Applies To list value A value or constant that specifies whether the control automatically passes entered values to the Value property The settings for value are Setting Description Automatic 0 Default Automatically passes the new input value to the Value property Manual 1 Does not write the new input value unless the control processes a Write method MicroComputing A5E00077133 01 B 37 Properties and Methods B 57 WriteNow Method Appli
198. rtyChangedName method while a programmer who uses Visual C or a similar programming language would use the PropertyChangedObject method MicroComputing A5E00077133 01 B 25 Properties and Methods B 40 B 26 Syntax result object PropertyChangedObject ConnectedObject Property The PropertyChangedObject method has these parts Part object result ConnectedObject Property Description An object expression that evaluates to an object in the Applies To list A long value that indicates whether an error has occurred The result is zero if no error occurs A String expression that evaluates to the name of the connected control whose property has changed A String value with the name of the property that has changed PushButton Property Applies to Button Determines the operation mode of the control if set to True or 1 the Value property is inverted as long as the Button control is pressed MouseDown event Syntax object PushButton boolean The PushButton property has these parts Part object boolean Setting True False Description An object expression that evaluates to an object in the Applies To list An Boolean expression that specifies the operation mode of the control Description The button is pressed the Value property is inverted Default The button is not pressed MicroComputing A5E00077133 01 Properties and Methods B 41 RawMax an
199. s equipment to operate erratically Always install a physical emergency stop circuit for your machine or process Section Description Page 2 1 Product Overview 2 2 2 2 Using an ActiveX Control to Access the Process Data 2 4 MicroComputing A5E00077133 01 2 1 Product Overview 2 1 2 2 Product Overview The MicroComputing software application allows you to access the control engine of your process to monitor and modify the process data As shown in Figure 2 1 MicroComputing provides standard ActiveX controls that access the process data through the Data control You can use them with the SoftContainer provided by the MicroComputing software or you can insert these controls into OLE containers of other software packages You can use a PC PPI cable or a communications processor CP card to connect to the S7 200 control engine Windows NT does not support the PC PPI cable Depending upon the CP card in your computer you can access an S7 200 control engine over an MPI PROFIBUS DP or Industrial Ethernet network Refer to the S7 200 Programmable Controller System Manual for information about the CP cards supported by S7 200 PLCs OPC Client Third party control optional Button control c OPC Server optional Edit control Label control Slider control Data control MicroComputing Communications P
200. s limit access to those users who are required to use the applications or files on the computer Add Users and Groups x List Names From Pe ME Names Domain Admins Designated administrators of the domain Domain Guests All domain guests E Domain Users All domain users Everyone All users gi INTERACTIVE Users accessing this object locally SYSTEM The operating system Add Show Users Members Search Eee Add Names Select the user groups to be allowed access such as Everyone Interactive and System Click on the Add button to add the groups to the permission list Type of Access Allow Access M OK Cancel Help Figure D 15 Changing the Access Permissions for Users or Groups MicroComputing D 16 A5E00077133 01 Using SIMATIC MicroComputing with DCOM Configuring the Permissions for Launching Software on the Client 1 Click on the Edit Default button for Default Launch Permissions to display the Registry Value Permissions dialog box See Figure D 16 2 Click on the Add button to display the Add Users and Groups dialog box and change the security settings for access to the server See Figure D 17 3 In the Names field of the Add users and Groups dialog box Figure D 17 select Everyone or the appropriate subset of users and click on the Add button Distributed COM Configuration Properties Click o
201. ssigning a Variable to the Caption Property of a VB Label Control MicroComputing 1 14 A5E00077133 01 Getting Started with SIMATIC MicroComputing Running the Sample Program for the Label Control Save the program before switching Visual Basic from Design mode to Run mode When the sample program runs the caption of the label displays the value of QBO in the control engine Note If the control engine is not in Run mode the Data control cannot make a connection Before setting Visual Basic into Run mode ensure that the control engine is running Use the following procedure to configure the Data control for communicating with the control engine and for running the sample program 1 In the Data Control dialog box select the Engine tab to configure the control engine See Figure 1 14 Siemens SIMATIC DataControl Properties x General Engine Connections Events Name Select the option for a direct connection C Connect via Tag Source Tag Source ay Browse Enter wes7 2 as the type of control engine Direct Connect PC Name Control Engine Cancel Apply Help Figure 1 14 Connecting to the Control Engine Label Control Example 2 Select the Direct Connect option and enter wes7 2 for the control engine Click on the Apply button to enter the data and then click on the OK button to close the dialog box 3 Switch Visual Basic from Design mode to
202. t VariableName Value TimeOut result Description An object expression that evaluates to an object in the Applies To list A String expression that specifies the variable memory location in the control engine A Variant value that contains the content to be written to the specified variable in the control engine A Long value that determines the length of time in ms before generating a time out error Not applicable for this release For the current release this value should always be 0 A Long value that indicates whether an error has occurred The result is zero if no error occurs B 39 Properties and Methods B 60 Zeropad Property Applies to Edit This property determines whether the number displayed by the control is padded with zeros to the left of the value to the size of the data type Syntax object Zeropad value The ZeroPad property has these parts Part Description object An object expression identifier for the specific SIMATIC control that evaluates to an object in the Applies To list value A Boolean expression that specifies whether or not the displayed number is filled with leading zeros The settings for value are Part Description True Fills the number with leading zeros to the size specified by the DataType property False default Does not fill the number with leading zeros MicroComputin B 40 133 01 A5E00077133 01 Events C 1 Change Event Applies to
203. t mouse button to bring up a pop up menu and select the Additional Controls menu command To display the Toolbox window select the View gt Toolbox menu command Scroll through the list of controls and select the Siemens Data control by selecting the check box Click on the OK button to insert the Data control onto the toolbox Select the Data control icon in the Toolbox window and insert a Data control onto UserForm1 Select the Data control and click the right mouse button to bring up the pop up menu From the pop up menu select the Properties menu command to display the properties for the Data control S7Data1 in the Properties window In the Properties window for S7Data1 select the Custom property field and then click on the expansion button to display the Properties dialog box for the Data control Adding Events for the Data Control 1 2 MicroComputing A5E00077133 01 In the Properties dialog box for the Data control select the Events tab In the list under the Keys heading select S7Datat1 Click on the Add button to add a new event key See Figure 1 15 In the Add dialog box enter QBO in the Add a new key field After you click on the OK button the event key is added to the S7Data1 control Getting Started with SIMATIC MicroComputing Siemens SIMATIC DataControl Properties Namel Select the Data control and click on the Add button to display the Add dialog box Enter QB
204. ta 4 25 read write data 4 20 read write with Data control E 5 sample program SoftContainer 1 20 1 26 STEP 7 Micro WIN program 1 3 F Factor property B 15 FalseCaption property FalseColor property B 17 FalsePicture property Font property B 18 ForeColor property B 18 G German changing to F 2 Guidelines connect disconnect B 4 B 7 B 9 B 14 E 4 containers E 2 custom ActiveX controls E Data control for critical data emergency stop circuit 1 1 2 1 6 6 MicroComputing authorization See also README TXT on the authorization disk sample programs I O panel 1 4 Microsoft Excel 1 16 1 20 other controls VBScrollbar 1 13 1 16 SoftContainer t i 26 STEP 7 Micro WIN program 1 3 using Visual Basic timers A 7 E 3 H High Speed Counter memory area addressing A 12_ MicroComputing A5E00077133 01 Inputs and outputs S7 200 controllers A 2 Installation authorization 3 4 copy protection 3 4 removing the authorization 3 5 transferring the authorization installation and removal 3 2 sy the MicroComputing authorization 3 5 guidelines 3 5 See also README TXT on the authorization disk removing the authorization 3 5 system requirements 2 3 transferring the authorization 3 5 Integrating distributed applications DCOM client and server D 1 K KeyDown event C 4 KeyPress event C 5 KeyUp event C 5 KnobHeight property Knob
205. tchMode Determine the resize mode of the graphical element for the control e Enabled Determine whether the Label responds to events It does not generate events while it is disabled The default setting for this option is enabled selected Siemens_SIMATIC_UserControls Label Properties x General Picture Font Color Name Alignment Caption Label Style 1 wGraphical V Enabled Appearance 0 wFlat x BorderStyle 0 wNone x StretchMode 1 wResizelmage Cancel Apply Help Figure 5 13 Label Control Properties General Tab MicroComputing 5 22 A5E00077133 01 User Controls Defining the Appearance of the Label Control The Picture tab of the Properties dialog Figure 5 14 allows you to browse to a picture for the Label control Select the Picture tab and then click on Browse to select the picture to be displayed for that state Note You can select the Picture property only if you have also configured the Style property on the General tab as graphical MicroComputing provides additional bitmaps Browse to the WinAC WinCP Bitmap directory Siemens_SIMATIC_UserControls Label Properties Picture Figure 5 14 Label Control Properties Picture Tab MicroComputing A5E00077133 01 5 23 User Controls Defining the Typeface of the Label Control 5 24 The Font tab of the Properties dialog Figure 5 15 allows you to define the typefac
206. te address ee from the bit number E E I Byte address byte 3 the fourth byte I4 Area identifier I input I5 I6 MSB most significant bit 17 LSB least significant bit 18 I 9 I 10 I 11 I 12 I 13 I 14 I 15 Figure A 1 Accessing a Bit of Data in the Memory Byte bit Addressing MicroComputing A 4 A5E00077133 01 Memory Areas of the S7 200 Controllers You can access data in many S7 200 memory areas V Q M S L and SM as bytes words or double words by using the byte address format See Figure A 2 V B 100 yoa pg L_ Byte address VB100 VB100 Access to a byte size Area identifier V memory Least significant byte V W100 Most significant byte LSB Byte address MSB 15 8 7 0 Access to a word size VW100 VB100 VB101 Area identifier V memory Most significant byte Least significant byte MSB LSB 31 24 23 16 15 87 0 VD100 VB100 VB101 VB102 VB103 vV D100 L Byte address MSB most significant bit Access to a double word size LSB least significant bit Area identifier V memory Figure A 2 Comparing Byte Word and Double Word Access to the Same Address To access a byte word or double word you must specify the address in a way similar to specifying the address for a bit This includes an area identifier data size designation and the starting byte address of the byte word or double
207. teMode Determine how the control responds when the user enters a new value If the write mode is set to Automatic 0 the value if valid is written automatically into the Value property and to the control engine If the write mode is Manual 1 the value is not written to the value property unless your program code calls the method Write at the control MicroComputing A5E00077133 01 User Controls Use the check boxes on the General tab shown in Figure 5 8 to define other operations for the control e Enabled Determine whether the control responds to events It does not generate events while disabled The default setting for this option is enabled selected e Locked When you enable this option the control becomes a read only display you can view the value in the memory location of the control engine but you cannot change the values from this control The default setting for this option is disabled not selected e Zero Pad When you enable this option the Edit control fills out the data type by inserting zeroes 0 to the left of the value The default setting for this option is disabled not selected Siemens_SIMATIC_UserControls Edit Properties x General Scaling Font Color Name Alignment 1 _ v Enabled Data Format 6 wReal z 7 Locked Appearance 1 wThreeD BorderStyle 1 wFixedSingle WriteMode 0 wAutomatic Precision Zeropad
208. the Control Engine The Connections tab shows the ActiveX controls whether they are SIMATIC controls or third party that can be connected to the control engine Caution Using the timer function improperly or using breakpoints in Visual Basic with MicroComputing can cause problems that could potentially cause your computer or application to crash or lock up Depending on the configuration this could cause the application to lose communication with the control engine This could cause unpredictable process operation which could result in death or serious injury to personnel and or damage to equipment Always install a physical emergency stop circuit for your machine or process Concerning VB timers The Timer function in Visual Basic version 5 allows a timer to interrupt code in progress within the same thread which can cause problems with potentially serious consequences If you use VB timers with MicroComputing observe the following guidelines e Always kill disable the timers in the Form_Unload subroutine Otherwise a timer can trigger an event while the VB program is shutting down this condition could cause your computer or your application to crash lock up or to continue running invisibly e f you start your timer in the Form_Load subroutine the timer event could occur before the other objects have been instantiated In order to ensure that the objects have been properly instantiated always start a timer in the Form_Load
209. the arrow pointer to the open process form Inside the process form the arrow pointer changes to a cross hair pointer 3 Click the left mouse button to insert the control that you selected E S7SoftContainer S7Soft1 oq x File Edit View Mode Options Window Help afta xee eie b fi eaaa S7Soft1 Select the control from the toolbar The arrow pointer changes to a cross hair pointer within the container Click the left mouse button to insert the control Ready Design Data1 248 109 24x26 4 Figure 6 3 Inserting a Control from the Toolbar MicroComputing 6 4 A5E00077133 01 Designing Process Forms with the SoftContainer Inserting Third Party Controls into the Process Form You can use other ActiveX controls than the SIMATIC controls in your process form Use the following procedure to insert a custom or a third party control into your process form 1 Select the Edit gt Insert Control menu command to display the Insert Control dialog box 2 As shown in Figure 6 4 select the custom or third party control to be added to the process form You can add the control to the toolbar of the SoftContainer by selecting the Add control to toolbar check box This allows you to use the icon in the toolbar for inserting the control into the process form 3 Click on the OK button and insert the control into the process form Insert Control x
210. the control C 8 MouseUp event Occurs when a mouse button is released while the mouse C 9 cursor is over the control MicroComputing A5E00077133 01 Designing Process Forms with the 6 SoftContainer Chapter Overview SIMATIC MicroComputing provides an OLE container application SoftContainer for receiving and displaying the data from the control engine Using this container you can insert your own third party controls or the SIMATIC controls into a process form This chapter provides information about inserting and positioning the controls in the container For more information about the specific SIMATIC controls refer to the following chapters e For information about the Data control see Chapter 4 e For information about the other SIMATIC controls Button control Edit control Label control and Slider control see Chapter 5 Section Description Page 6 1 Starting the SoftContainer 6 2 6 2 Creating a Process Form 6 4 6 3 Switching from Design Mode to Run Mode 6 4 Saving Your Process Form MicroComputing A5E00077133 01 6 1 Designing Process Forms with the SoftContainer 6 1 6 2 Starting the SoftContainer MicroComputing includes a container for the various SIMATIC controls To create a container select the Simatic gt PC Based Control gt Computing SoftContainer menu command from the Start menu You can also double click on the icon for MicroComputing Figure 6 1 shows a sample
211. trol This information is displayed even when the snap grid is disabled e Size information The status bar shows the size of the control width x height By selecting several controls you can use the information in the status bar to adjust the size or position of the controls You can turn the status bar and the snap grid on or off e To display the status bar select the View gt Status Bar menu command The status bar is displayed when the menu displays a check mark e To enable the snap grid select the View gt Snap Grid menu command The snap grid is enabled when the menu displays a check mark Coordinates for positioning the control Design Data1 248 109 24x26 4 Name of the control selected Size of the control Figure 6 2 Elements of the Status Bar MicroComputing A5E00077133 01 6 3 Designing Process Forms with the SoftContainer 6 2 Creating a Process Form A process form is a document or file created with the SoftContainer It contains the ActiveX controls used for monitoring and modifying data in the control engine Inserting a SIMATIC Control in the Process Form Refer to Figure 6 3 and use the following procedure to insert a SIMATIC control into your process form 1 In the toolbar select the control to be inserted by clicking on the icon for the control Figure 6 3 shows a Data control being inserted into the process form 2 Use the mouse to move
212. trol the Data control automatically creates a connection table You can also create a program to manually create connection tables Creating a Sample Connection Table 4 12 You can create a connection table to assign a variable in the control engine to a specific control The connection table corresponds to the Connections tab on the Properties dialog box of the Data control For each element in the connection table you must define the property in the control for the connection the source memory location of the assigned variable in the control engine the update rate and the dead band value In order to change connections with a connection table you must first disconnect the Data control ending all connections before you can reassign connections and reconnect the Data control Note Instead of creating a connection table consider using the read and write methods for the Data control ReadVariable ReadMultipleVariables WriteVariable and WriteMultipleVariables These methods allow you to access more data with just one line of code MicroComputing A5E00077133 01 Accessing the Process Data with the Data Control Table 4 1 shows sample Visual Basic code for a Label control called lbIChange in your form to MW2 in the control engine The value stored in MW2 displays as the caption in the Label control Table 4 1 Sample Program for Manually Creating a Connection Table Visual Basic Code Dim ControlTable 4 As
213. ue passed to WRITE was accepted but was clamped 0xC0040001 OPC_E_INVALIDHANDLE An invalid handle was passed 0xC0040002 OPC_E_DUPLICATE A duplicate parameter was passed where one is not allowed 0xC0040003 OPC_E_UNKNOWNLCID The server does not support the specified local ID 0xC0040004 OPC_E_BADTYPE The server cannot convert between the passed or requested data type and the canonical data type for this item 0xC0040005 OPC_E_PUBLIC The requested operation cannot be performed on a public group 0xC0040006 OPC_E_BADRIGHTS The access rights for the item do not allow the operation 0xC0040007 OPC_E_UNKNOWNITEMID The item definition does not exist within the address space of the server This can also occur on an exiting item if the item is deleted on line from the server address space by some external operation 0xC0040008 OPC_E_INVALIDITEMID The item definition does not conform to the syntax of the server 0xC0040009 OPC_E_INVALIDFILTER The filter string is not valid 0xC004000A OPC_E_UNKNOWNPATH The access path of the item is not known to the server 0xC004000B OPC_E_RANGE A value passed to WRITE is out of range 0xC004000C OPC_E_DUPLICATE_NAME A group with a duplicate name already exits in the server MicroComputing A5E00077133 01 F 7 MicroComputing A5E00077133 01 Index A AboutBox method B 1 Accessing data connect disconnect B 4 B 7 B 9 B 14 E4 separate Data control E 4 Acc
214. useUp events If there is code in the Click event the DbIClick event will never trigger because the Click event triggers first MicroComputing A5E00077133 01 Events C 5 Error Event Applies to Button Edit Label Slider This event occurs when the control encounters an error Syntax Error long SCode BSTR pszDescription BSTR IpszHelpFileName _ long nHelpld The Error event has these parts Part Description SCode See Table C 1 lpszDescription String with a description of the error condition IpszHelpFileName Name of the Help file in which the error is described nHelpld Help topic ID with a description of the error Table C 1 SCodes Error Event Codes Name Value Description wFACTOR_ZERO 0xC0040002 Factor Must not be zero wRAWMINMAX 0xC0040006 RawMin must be less than RawMax wMINMAX 0xC0040009 Min must be less than Max wLARGECHANGE_ZERO 0xC004000A Large Change Must be greater than zero and less than wTICKS_ZERO_100 0xC004000C Ticks Must be a number between 1 and 100 wKNOBHEIGHT_ZERO 0xC004000E Knob Height Must be greater than zero wKNOBWIDTH_ZERO 0xC0040010 Knob Width Must be greater than zero wSMALLCHANGE_ZERO 0xC0040012 Small Change Must be greater than zero and less than wRAWMIN_SCALEMODE 0xC0040014 RawMin may only be set if ScaleMode is wByRange wRAWMAX_SCALEMODE 0xC0040015 RawMax may only be set if ScaleMode is wByRange wEDIT_OUT_OF_RANGE
215. ut value of third counter Button 1 0 0 Enable bit for first counter Button2 1 0 1 Enable bit for second counter Button3 0 2 Enable bit for third counter MicroComputing A5E00077133 01 1 9 Getting Started with SIMATIC MicroComputing Selecting a Control Engine Use the following procedure to configure the Data control for communicating with the control engine 1 Select the Engine tab to configure the control engine See Figure 1 10 2 Select the Direct Connect option and enter the control engine for example wceS7 2 Click on the Apply button to enter the data and then click on the OK button to close the dialog box Siemens SIMATIC DataControl Properties Select the option for a direct connection Enter wes7 2 as the type of control engine Figure 1 10 Connecting the Data Control to a Control Engine MicroComputing 1 10 A5E00077133 01 Getting Started with SIMATIC MicroComputing Operating the I O Panel Program Before you run the I O Panel program make certain that the control engine is running the sample program Counters and that you have configured the access point Computing see Section 3 3 and selected the control engine in the Data control Figure 1 10 Note If the S7 200 control engine is not in Run mode the Data control cannot make a connection Before setting Visual Basic into Run mode ensure that the control engine is running 1 Select the F
216. uting A5E00077133 01 B 27 Properties and Methods B 43 B 28 The ReadMultiVariables method has these parts Part object VarNames VarValues States result Description An object expression that evaluates to an object in the Applies To list A Variant that specifies the array of variables memory locations to be read from the control engine A Variant that contains an array of the corresponding values of the specified variables in the control engine The Variant should be empty A Variant that contains an array of the quality code Long for each of the variables A Long value that indicates whether an error has occurred The result is zero if no error occurs ReadVariable Method Applies to Data This method reads the status of one specific variable in the control engine Syntax result object ReadVariable VariableName Value State TimeOut The ReadVariable method has these parts Part object VariableName Value State TimeOut result Description An object expression that evaluates to an object in the Applies To list A String expression that specifies the variable memory location in the control engine to be read A Variant value containing the content of the specified variable in the control engine The Variant should be empty A Long value that provides the quality code for the variable A Long value that determines the length of time in ms before generating
217. utton controls onto the Visual Basic form See Figure 1 4 2 Create standard VB label controls to indicate the address that you have assigned for each of the controls See Figure 1 4 S 1 0 Panel z QBO QB1 QB2 VB Label controls E E o H Edit controls Button controls OFF OFF OFF 0 1 10 2 10 0 VB Label controls W Figure 1 4 Sample I O Panel Created in Visual Basic Data control EEL Assigning Variables in the Control Engine to the SIMATIC Controls In order to connect the SIMATIC or third party controls to the process data in the control engine you must assign a variable memory location in the control engine to the Value property or to other properties for each control To assign variables in the control engine you use the Connection tab of the Properties dialog box for the Data control You cannot assign a variable to the Value property of a control by using the property list of the control itself Use the following procedure to assign variables to the SIMATIC controls 1 Select the Data control and click the right mouse button to bring up the pop up menu From the pop up menu select the Properties menu command to display the Properties dialog box for the Data control 2 Select the Connections tab Click on the plus symbol to expand the list of controls MicroComputing 1 6 A5E00077133 01 Getting Started with S
218. ve User See Figure D 11 2 Click on the OK button to enter the identity permissions for the running class g Cla Propertie 21x Security Select The interactive user NTnet NDS1910 Figure D 11 Configuring the DCOM Identity Permissions for the Server MicroComputing D 12 A5E00077133 01 Using SIMATIC MicroComputing with DCOM D 3 ZN Configuring the Permissions for the Client Computer Before you can use MicroComputing with DCOM you must use DCOM configuration to set application properties such as security and location On the computer running the client application the application which initiates a request to a server application you must specify the location of the server application the application that responds to requests from a client that will be accessed or started Figure D 12 lists the basic tasks required for configuring the server Note You do not configure the running class properties for the client computer You define the running class on the server computer See Figure D 8 Configure the default properties for DCOM Configure the permissions for accessing the software on the client Configure the permissions for launching applications on the client Figure D 12 Tasks for Configuring the DCOM Client Caution Granting permission to access applications on a computer allows other users such as Everyone to start and stop programs or to access fil
219. x method B 1 B 1 Activated Alignment B 2 Appearance AutoConnect AutoConnectTimeout BackColor BorderStyle Caption B6 Connect method B 7 ConnectName method B ConnectObject method EEE ControlEngine DataType DefaultDeadband DefaultUpdateRate E Direction B 13 Disconnect method DisplayValue Enabled Factor B 15 FalseCaption FalseColor B 17 FalsePicture B 17 Font B 18 ForeColor B 18 KnobHeight B 19 KnobPicture B 19 KnobWidth other controls vBscrlba TERE PCName Picture precision PropertyChangedName method B 25 Index 8 PropertyChangedObject method B 25 PushButton B 26 RawMax B 27 RawMin B 27 ReadMultiVariables method B 27 ReadVariable method B 28 ScaleMode B 29 ShowErrorBoxes ShowMinMax B 30 SIMATIC control properties Style Text B 33 Ticks TrueCaption TrueColor B 34 Value WriteMode B 37 WriteMultiVariables method B 38 WriteNow method B 38 WriteVariable method B 39 Zeropad B 40 Properties and methods Button control 5 10 Edit control 5 18 Label control 5 27 Slider control 5 34 PropertyChangedName method pes 25 PropertyChangedObject method B 25 PushButton property R RAM system requirements RawMax property RawMin property B 27 Readme file guidelines for MicroComputing authorization 3 4 ReadMultiVariables method B 27 ReadVariable method B 28 Removing the MicroCom
220. y settings for access to the server See Figure D 7 3 In the Names field of the Add users and Groups dialog box Figure D 7 select Everyone or the appropriate subset of users and click on the Add button Distributed COM Configuration Properties Click on the Edit Default button to allow remote users to launch applications on this computer Click on the Add button to change the security settings IVpe Gi AGcessy pee aa Figure D 6 Configuring the Default Launch Permissions for DCOM MicroComputing A5E00077133 01 D 7 Using SIMATIC MicroComputing with DCOM ZN D 8 Caution Granting permission to access applications on a computer allows other users such as Everyone to start and stop programs or to access files on your computer Granting unlimited access to everyone on the network could cause problems from either innocent or malicious interference Always limit access to those users who are required to use the applications or files on the computer Select INTERACTIVE and click on the Add button 5 Select SYSTEM and click on the Add button Click on the OK button to enter these changes to the Registry Value Permissions dialog box Click on the OK button of the Registry Value Permissions dialog box to enter the changes to the default access permissions The Registry Value Permissions dialog box closes and displays the Distributed COM Configuration

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