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IO4AB USER'S GUIDE

1. 0 11 12 Module position 12 analog 13 Points ifo 14 15 Module position 14 serial Ports 1 0 IO4AB User s Guide www klinkmann com A Supported Allen Bradley Platforms Opto 22 supports using the ControlLogix and CompactLogix controller platforms V13 17 with Opto 22 SNAP I O Both of these platforms support Implicit Messaging also known as I O messaging and Explicit Messaging The following Allen Bradley platforms also support EtherNet IP While some controllers in these platforms only support explicit messaging Opto 22 may be able to assist you in using them MicroLogix 1100 and 1400 FRN4 or newer DriveLogix 700s Version 2 SLC 5 05 SoftLogix5800 NOTE Some Allen Bradley controller platforms have only specific models that support EtherNet IP or require an adapter module or card For a complete and up to date list of Allen Bradley platforms that support EtherNet IP and more information on which platforms support Implicit Messaging or Explicit Messaging only contact Rockwell Automation IO4AB User s Guide www klinkmann com IO4AB User s Guide www klinkmann com B Using Counts This appendix describes using counts with EtherNet IP and linearizing the Pt100 and Pt1000 probes from resistance In this Appendix Using Counts With EENET P nessricccnsososocuinisesaion 109 Linearizing the Pt100 and Pt1000 Probes
2. G Custom scale Module s Units Liters per second ar Liters sec dade VDO Zero Scale j 2000 pre 3 Possible low 2000 10 Full Scale 2000 value for module Watchdog No C 1000 5 Upper amp lower 0 0 OK G se ere values entered Sagat 1000 5 in dialog box Possible high 2000 10 value for module NOTE On a bipolar module for example 10 VDC to 10 VDC the minimum scale is always zero EU not a negative number IO4AB User s Guide www klinkmann com 4 Setting Up Implicit Messaging This chapter describes how to use EtherNet IP Configurator and RSLogix 5000 software to set up implicit messaging between an Allen Bradley controller and Opto 22 remote I O If you want to set up explicit messaging see 5 Setting Up Explicit Messaging on page 33 For help in choosing a messaging type see Choosing the Messaging Type on page 8 Before you begin make sure you have done the following things e Installed your Opto 22 device and modules according to the instructions that came with the device and modules e Added your Opto 22 device using EtherNet IP Configurator see Adding an Opto 22 Device on page 12 e Configured the Opto 22 I O module and points see Configuring I O Modules and Points on page 16 To set up implicit messaging you must use EtherNet IP Configurator to create input and output assemblies An assembly provides the format f
3. 4 Browse to the folder you want to use and then click OK 5 In the controller organizer expand I O Configuration Backplane and 1769 L32E Ethernet Port LocalENB L um ourniy gt i Add On Defined ER Predefined i Module Defined Trends 1 0 Configuration B isi Backplane CompactLogix System fa 1769 L32E 10446 1769 L32E Ethernet Port Localen 2 Ethernet CompactBus Local v E 6 Right click Ethernet and select New Module This module will be used to add the Opto 22 device 7 Expand Communications in the controller organizer to open the Select Module dialog box O4AB User s Guide www klinkmann com CONFIGURING RSLOGIX FOR IMPLICIT MESSAGING E Select Module Description _ 1769 L35E Etherne 1788 EN2DN 4 1788 ENBT A 1788 EWEB A 1794 AENT A 1794 AENT B Drivelogix5730 Eth ETHERNET BRIDGE ETHERNET MODULE EtherNet IP PH PSSCENA A Digital By Category _ Vendor 10 100 Mbps Ethernet Port on CompactLogixS332E 10 100 Mbps Ethernet Port on CompactLogixS335E 1788 Ethernet to DeviceNet Linking Device Allen Bradley 1788 10 100 Mbps Ethernet Bridge Twisted Pair Media Allen Bradley 1788 10 100 Mbps Ethernet Bridge w Enhanced Web Serv Allen Bradley 1794 10 100 Mbps Ethernet Adapter Twisted Pair Media Allen Bradley 1794 10 100 Mbps Ethernet Adapter Twisted Pair Media Allen Bradley 10 100 Mbps Ethernet Port on DriveLogix5730 Allen Bradley Generic EtherNet IP CIP Bridge Allen Br
4. If you are unable to get the precision you want you can view the plot at a lower time span such as 10 seconds You will need to reposition your plot and the measurement bars of the Delta X cursor The example above shows a system lag of 1 88 seconds Generally a suitable scan rate can be anywhere from one third the system lag to two times the system lag Considerations in setting scan rate are IO4AB User s Guide www klinkmann com INSPECTING AND TUNING PID LOOPS e Slower scan intervals may be easier to tune The PID controller has time to see the effect of the previous output before calculating a new output e Faster scan rates may be necessary to achieve the desired response When scan intervals are shorter than the system lag tuning must compensate for any over correction from the controller output Tuning a PID Loop Tuning a PID involves manipulating the P and D constants in real time The following steps should be viewed as general suggestions to show you features that are available for tuning We highly recommend Opto 22 form 1641 OptoTutorial SNAP PAC PID for more detailed information Form 1641 is available for download from our website at www opto22 com CAUTION Before following these procedures make sure you know the limits of the equipment being controlled and monitored by your PID loop Also make sure that these points are configured properly Any values suggested in these steps are for example onl
5. Read_Message My read message for an MSG instruction Data Type Scope Style Array Dimensions Dim Dimi Dim2 New Tag Name Read Message Description My read message for an MSG instruction Type Bae x Connection Alias For Ooo Data Type essa EJ Scope I Explicit Messaging v Style m V Open MESSAGE Configuration 4 Click OK to close the New Tag dialog box and open the Message Configuration dialog box IO4AB User s Guide www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING Message Configuration Read_Message 5 Select Get Attribute Single for the Service Type Destination IO4AB User s Guide www klinkmann com CREATING A MESSAGE OBJECT Notice that the Source Element and Source Length fields are now inactive Message Configuration Read_Message Configuration Communication Tag Message Type cir Generic Service Get Attribute Single Source Element Type i ath source Leng Service A Code le Hex Class Hex Destination Instance Attribute Hex D Enable Enable Waiting Start Done Done Length 0 Error Code Extended Error Code I Timed Out Error Path Error Text Cancel Apply Help 6 Populate the Class Attribute and Instance fields as follows Class 4 Hex To Read an assembly instance is a Class 4 Hexadecimal Assembly operation Attribute
6. Watchdog digital and analog points A watchdog monitors communication to the device If nothing accesses the port for the length of time set in the watchdog the remote I O automatically sets designated digital and analog I O points to the values you have determined A watchdog helps make sure that a communication failure doesn t result in disaster If no communication is received for the length of time set in the watchdog the watchdog makes sure the process is automatically brought to a safe state For example a valve could auto matically close to avoid completely emptying a tank IO4AB User s Guide REFERENCING I O POINTS ON SNAP PAC RACKS Referencing I O Points on SNAP PAC Racks This section shows input and output point numbers for SNAP PAC mounting racks which can hold up to 4 8 12 or 16 Opto 22 SNAP I O modules Each module contains 1 to 32 points channels depending on the module Examples of modules are shown in the following diagram NOTE Each channel of a SNAP PAC I O module provides connectivity to one point of I O Each channel of a SNAP PAC communication module provides connectivity to one communication port wee positions Module position 0 4 ch digital 0 Points 3 2 1 0 Module position 6 high density digital Points 31 lt _ _ 0 Module position 8 analog 1 2 3 4 5 6 7 8 Points 7 6 5 4 3 2 1 0
7. Yes C No How many points does this module have 4 v Click OK Continue to add elements as necessary NOTE Ifan assembly member or group of members adds up to less than 32 bits you will need to add padding To add a pad click the Add button to open the Add Modify dialog box IO4AB User s Guide CREATING AN OUTPUT ASSEMBLY 10 Under Class select Pad enter the size of the pad for example 28 and click OK Add Assembly Member Description pe Instance Information Attribute Discrete Input Point Discrete Dutput Point Size In Bits 28 Ramp Controller PID Loop Controller Communication Watchdo The pad appears as the last member of element 0 to complete the 32 bit word also called a DINT You can add up to 125 input DINTs When you have completed an input assembly for implicit messaging go to the next section to create an output assembly Creating an Output Assembly Creating an output assembly is similar to creating an input assembly 1 On the Configure Assemblies tab click an assembly instance number other than the one used for the input assembly for example assembly instance 101 Notice that the assembly numbers you ve already used have a green background Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Assembly Instance 101 it 102 103 104 105 106 107 108 109 110 111 112 113 Description A Assembly Members pint
8. set the integer scratchpad value for reading by the A B PLC Set IoUnitScratchPadInt32Element ioLocal 0 i32PACBuf fer_Tank_Ready Set IoUnitScratchPadInt32Element iolocal 1 i32PACTank_Contents set the float scratchpad value for reading by the A B PLC Set IoUnitScratchPadFloatElement ioLocal 0 32PACGallons_In_Tank i gt A EJ saa users Guide www klinkmann com www klinkmann com CHAPTER 6 CONNECTING PAC CONTROL AND ALLEN BRADLEY SYSTEMS Using an action block to achieve the same thing Move 32 bit Integers to Scratchpads Comment Single Line Set I O Unit Scratch Pad Integer 32 Element VO Unit ioLocal Index 0 From i32PACBuffer_Tank_Ready Put Status in dABBottles_Filled Set 1 0 Unit Scratch Pad Integer 32 Element 1 0 Unit ioLocal Index 1 From i32PACTank_Contents Put Status in dABBottles Filled Move Float to Scratchpads Comment Single Line Set 1 0 Unit Scratch Pad Float Element VO Unit ioLocal Index 0 From f32PACGallons_In_Tank Put Status in dABBottles_Filled 3 Once again using either an OptoScript block or an action block this time create code that reads the values the Allen Bradley PLC writes to the scratchpads of the SNAP PAC controller The PAC Control environment reads the values emplaced by the A B PLC and moves them into similarly named variables Using an OptoScript block OptoScript Code get the integer scratchpad value emplaced by the A B PLC
9. A pulse is a brief on or off state usually repeated at a specific interval The brain tional output TPO measurement can measure the first pulse that is the amount of time the input stays on or stays off input A quadrature counter requires a SNAP quadrature input module which is attached to Quadrature the encoder device The module sends a pulse to the remote I O upon each change in counters quadrature state and the remote I O counts the pulses and keeps track of the direction and rotation input and output Automatic not configurable A digital point is either on or off You can read States eps i ne the current state of a digital input or write an on off state to a digital output Time propor output Time proportional output varies the duty cycle and the percentage of on time within that cycle TPO is often combined with a PID loop and used to control the output for example in a heater or oven Watchdog digital and analog points A watchdog monitors communication to the device If nothing accesses the port for the length of time set in the watchdog the remote I O automatically sets designated digital and analog I O points to the values you have determined A watchdog helps make sure that a communication failure doesn t result in disaster If no communication is received for the length of time set in the watchdog the watchdog makes sure the process is automatically brought to a safe state F
10. Setpoint 79 Tunel 0 05 Scan Counts Output 2 252521 Tune D 10 02 Plot 10 Details Misc Details Velocity Algorithm Input Setpoint Output 09 44 00 0 09 44 31 4 Set the PID Mode to Auto if not set already and click Apply 5 Change the Setpoint if desired by typing a new setpoint and clicking Apply Setpoint must be configured as Host Depending on the type of system your PID may maintain a setpoint or respond to changes in setpoint Experiment with setpoint changes again after tuning the P and D constants 6 Adjust the span of the input output and time axes according to how much change you expect from your system To set a span click the axis button and choose from the popup menu 7 If desired type a new Scan Rate and click Apply For most systems you should use an appropriate scan rate based on the system lag see Determining System Lag on page 94 However you can experiment with Scan Rates before tuning the P and D constants or adjust scan rate after tuning IO4AB User s Guide BA www klinkmann com INSPECTING AND TUNING PID LOOPS Here is an example for Scan Rate Sit ns gt TemperatureControl View PID Loop scanning Name TemperatureControl Error N one Input 80 24991 Gain Scan Aate 3 sec Setpoint Jeo Tune Scan Counts 112783 Output 0 Tune D Plot 1 0 Details Misc Details Velocity Algo
11. are used to drive an input a process variable toward a particular value the setpoint and keep the input very close to that value by controlling an output For example consider temperature control where the input is a measurement of ambient temperature the setpoint is the desired temperature and the output is a heater The PID for this system will use a mathematical formula that controls the output to maintain a desired temperature efficiently adjust to changes in setpoint and compensate for changes in load such as the influx of cold air In this example a temperature sensor analog input a thermostat analog input and a heater control analog output are components of one system controlled by a PID loop This guide assumes that you are already familiar with using PIDs PID calculations are complex and the physical qualities of systems suitable for PID control differ greatly This guide includes only basic information for configuring PIDs SNAP PAC I O units support 96 PID loops PIDs can control isolated systems or be part of cascaded systems where one loop controls the setpoints or input variables of others EJ o4 users Guide www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR Adding a PID Loop The PID operates at the I O unit independently of the controller Once configured and downloaded to the brain a PID operates until the I O unit loses power Remember that changes are not written to the I O unit until the
12. definition 104 load cell inputs 110 M AC address 13 maximum value 105 ESSAGE object 43 51 icroLogix PLC 121 minimum value 105 modify device 80 SG instruction 50 multicasting 7 IO4AB User s Guide N network infrastructure 3 O ODVA 3 off latch 104 offset definition 105 on latch 104 Opto Tag Database otg file 34 output assembly 26 P parallel algorithm for PID 91 PID loop algorithms 91 changing 90 configuring 86 deleting 91 determining system lag 94 inspect 93 tuning 98 Product Support 4 Pt1000 111 Q quadrature counter 104 R Requested Packet Interval RPI 32 resistance temperature inputs 110 retrieve counts 109 S scaled units 21 scaling analog point 21 description 105 scanner class device 7 setpoint for PID 86 SLC5 05 PLC 121 slope intercept format 111 SNAP AIR40K 111 SNAP AIRTD 111 state of digital point 104 www klinkmann com www klinkmann com Riga tel 371 6738 1617 klinkmann klinkmann lv 7 TCP IP 51 116 thermistors 111 troubleshooting 4 tuning PID loop 98 U UDP IP 7 unconnected message 54 upload configuration 77 User Data Types UDTs 54 Helsinki tel 358 9 540 4940 automation klinkmann fi Yekaterinburg tel 7 343 376 5393 yekaterinburg klinkmann spb ru Vilnius tel 370 5 215 1646 post klinkmann It V value readings 82 velocity algorithm for PID 91 view PID loop 93 W watchdog 15 18 definition
13. www odva org Portals 0 Library Publications_Numbered PUBO00035RO_Infrastructure_Guide pdf For a good starting point for Ethernet IP research on the ODVA web site see http www odva org default aspx tabid 67 IO4AB User s Guide PRODUCT SUPPORT Product Support If you have any questions about using EtherNet IP to communicate with Opto 22 devices you can call fax or email Opto 22 Product Support Phone 800 TEK OPTO 835 6786 NOTE Email messages and 951 695 3080 phone calls to Opto 22 Hours are Monday through Friday Product Support are 7 a m to 5 p m Pacific Time grouped together and answered in the order Fax 951 695 3017 received Email support opto22 com Opto 22 website www opto22 com When calling for technical support be prepared to provide the following information about your system to the Product Support engineer Software and version being used Firmware versions PC configuration type of processor speed memory and operating system RSLogix 5000 version PLC model PLC firmware version A complete description o type of power supply types of remote I O in your hardware and operating systems including stalled third party devices installed for example barcode readers Description and symptoms of the issue Specific error messages seen IO4AB User s Guide www klinkmann com 2 Introduction to IO4AB This chapter includes a brief introduction to Ethernet IP and how
14. 0 cece cece cece ee 66 Modifying the RSLogix 5000 Ladder cicacssissceercnevenes ees eawreusventeenssauvennreneres 68 Exchanging Data ONIN se cissanc0033 aah nenialdiwee E ya pewuand bei EESE 71 More Ideas for Accessing Data 00 cece cece eee cece eee bene bebe bene eee e eee 72 OPtOOPGSEVEl ea sali acwaciGda dae yan dddduwn dehy vecadsa dat dehy takddade dated 72 RAC ISIN areenan a e E A lysed a ste E A A 72 Using the Free Opto MMP Toolkit u rissie moriusittoniite corseoniteni uni geamaeathi cea e 73 Chapter 7 Using EtherNet IP Configurator sssssusssonsssessssosesesesess 75 imporingan Existing Config radti Nessas ne teed EE a 76 Uploading a Configuration from an Opto 22 Device ccc cece ees 77 Downloading a GNU QUIAUON is cep naenin neea nne cage a EE E EEE 78 Addinga Device Mantal seeen ania ena EEEE EE e EEEE ESE 78 Moditinga Devi Ceren aeaeaie nen ses te con stv rachel EAA 80 Changing a Device SIP ACESS hii susi tonuna unea na aa eea n a i 80 Adding and Deleting Assembly Elements 0 000 e cece cece eee cette eee eee 81 Moving Assembly Members i ss sino 000 0 cc ceee ened ene denedeneeeeeeeesdeeseeeseeeseeees 84 Viewing a Configuration REPO aiic3 daigdids daidse iniatas dan dddadwtedade dave E 85 Configuring PID LOOPS 0 cece cece cece ened nnd nn bebe EEEren 86 Adding a PID LOOP errenneren nantauainqat cha napovens Heard a eagaton meron E 87 CHANGING a PIDMOOD sie oeeicesveduetonshtedea deed d
15. 104 105 St Petersburg tel 7 812 327 3752 klinkmann klinkmann spb ru Samara tel 7 846 273 95 85 samara klinkmann spb ru Tallinn tel 372 668 4500 klinkmann est klinkmann ee Opto22_IO4AB_User_Guide_en_0112 pdf Moscow tel 7 495 641 1616 moscow klinkmann spb ru Kiev tel 38 044 495 33 40 klinkmann klinkmann kiev ua Minsk tel 375 17 200 0876 minsk klinkmann com
16. 16 of 16 Assembly Instances successfully configured Configuration saved to flash Device 192 168 0 26 Complete Moving Assembly Members The Up and Down arrows allow you to move assembly members up and down in the assembly For example if a pad is in the wrong place some of the assembly members will be highlighted in yellow as shown here Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verify Assembly Instance 101 Wend E102 103 104 105 106 107 108 109 110 111 112 113 114 115 Description Assembly Members Attribute 0 0 0 1 DiscretelnputPoint diSwitch_DO Mod 00 PtOO Value 1 0 1 1 DiscretelnputPoint diSwitch_D1 Mod 00 Pt01 Value 2 0 2 1 DiscretelnputPoint diButton_Ct2 Mod 00 Pt02 Value Delete 3 0 3 1 DiscretelnputPoint diButton_Ct3 Mod 00 Pt03 Value 40 4 32 AnabgrouPont PID Input Mod03 PROD Moe Modify 5 1 4 32 AnaloginputPoint aiRloom_Temp Mod 03 Pt alue ven 6 2 4 28 Pad m Up and Down arrows lv Instance Size 3DINTs 125 Max IO4AB User s Guide www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR To move the pad select it and click the appropriate arrow to move the pad into its proper place Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Assembly Instance 101 Ten 102 103 104 105 106 107 108 109 110 111 112 113 114 115 Description Assembly Members
17. 208 2 2 13121 73 0 203 397 2 065415 78 0 198 394 2 001275 84 0 193 147 1 938809 90 0 188 091 1 882628 96 0 182 791 1 82742 103 0 177 189 1 77304 110 0 171 674 1 722901 117 0 166 205 1 676152 124 0 160 374 1 629129 132 0 154 119 1 581747 140 0 147 819 1 536746 148 0 141 452 1 493727 156 0 135 005 1 452396 164 0 128 069 1 410108 173 0 120 599 1 366925 182 0 113 014 1 325248 191 0 105 321 1 284971 200 0 97 5315 1 246025 209 0 89 6599 1 208362 218 0 81 2915 1 169975 228 0 72 4124 1 131032 238 0 63 4985 1 093578 248 0 54 5737 1 057591 258 0 45 6613 1 023047 268 0 36 3519 0 98831 279 0 26 2247 0 952012 I1O4AB User s Guide www klinkmann com www klinkmann com Table 2 120 Ohm Nickel RTD 80 TO 260 C APPENDIX B USING COUNTS Table Range 65 0 to 381 0 Ohms 65 0 182 127 1 533316 87 0 179 959 1 508399 100 0 176 723 1 476043 110 0 172 557 1 438171 119 0 167 486 1 395552 128 0 162 1 352695 137 0 156 357 1 311506 146 0 150 64 1 272347 155 0 144 621 1 233515 165 0 138 325 1 195359 175 0 131 967 1 159026 186 0 125 596 1 124774 197 0 119 322 1 092927 208 0 112 759 1 061371 220 0 105 979 1 030556 232 0 99 093 1 000874 245 0 92 0848 0 972269 258 0 84 7268 0 943749 271 0 76 8096 0 914535 284 0 68 4858 0 885226 297 0 59 9087 0 856347 310 0 51 1933 0 828232 323 0 42 291 0 800671 337
18. Assembly instances may be accessed using the Read Assembly and Write Assembly options Other values with the EtherNet IP classes may be accessed using the Get Attribute Single and the Set Attribute Single options The SLC5 05 s EEM message configuration is based around 16 bit words however the EtherNet IP Configurator is based around 32 bit DINTs and it requires that each assembly instance is filled up to the nearest complete 32 bit boundary When configuring the EEM message size double the message length to accommodate the transition between DINT sizes and word sizes For the Service field select either Read Assembly or Write Assembly When populating the fields of the EEM message use form 1770 the EtherNet IP for SNAP PAC Protocol Guide to identify the attributes for Service Service Code Class Instance and Attribute IO4AB User s Guide www klinkmann com CONNECTING A PAC WITH A SLC5 05 PLC General Tab Message Timeout Use default Channel 1 The size must be at least 2 times the DINTs in the assembly Size in Words Receive instance Will be grayed out on a write The size must be exactly 2 times the DINT size of the assembly cee noras T raneiit instance used to be written Will be grayed out on a read Data Table Address Send Select the source file address Data Table Address Recv Select the destination file address Target Device Tab Message Timeout Use th
19. Destination must be controller scoped tags ICTD_Temperature Data Type P FRead_Message MESSAGE My read message i ICTD_Temperature Name ICTD_Temperature Data Type REAL Description Show Show All The completed Configuration tab should like this IO4AB User s Guide CREATING A MESSAGE OBJECT Message Configuration Read_Message Configuration Communication Tag Message Type CIP Generic v n Get Attribute Single x Source Element Source Length jo _ Bytes Service le i Code 2 Mex d J Hex Destination ICTD_Temperature Soure Instance foo Attribute 3 Hex Weer Enable Enable Waiting Start Done Done Length 0 Error Code Extended Error Code Timed Out Error Path Error Text Cancel Apply Help 11 Click the Communication tab Message Configuration Read_Message Configuration Communication Tag Path Browse r Communication Method CIP C DH Channel z Destination Lin fo gj oles Source Link fo Destination Node jo _ Octal I Connected IV Cache Connections e O Enable Enable Waiting Start Done Done Length 0 D Eror Code Extended Error Code I Timed Out Error Path Error Text Cancel Apply Help 12 Fora ControlLogix controller 1756 L61 with a 1756 ENBT A implementation enter the communication path ENBTA 2 000 000 000 000 where ENBTA is the nam
20. For IO4AB the communication format data type will usually be REAL 4 Bytes DINT 32 bit integers or INT 16 bit integers The selected data type always applies to both the input and output assembly Should a communication format be chosen with the status input assembly this data is always considered a DINT format The four primary communication format types are as follows Input Data A single assembly instance of inputs from the SNAP PAC I O IO4AB User s Guide www klinkmann com DETERMINING THE NUMBER OF ASSEMBLY INSTANCES Input Data with Status Two assembly instances The primary Input instance s data may be selected The status assembly instance is assumed to be DINT Data This is the most typical selection There is an input assembly and an output assembly The user may select the data type for the input and output assembly Data with Status Maximum data transfer possible There is an input output and a status assembly The user may select the native data type for the input and output assemblies The status assembly is assumed to be a DINT The following table describes the communication format data types available for the Opto 22 I O for A B implementation REAL The assembly instances are only comprised of REAL values or scaled engineering units of analog inputs or outputs DINT The assembly instances contain any BOOL type data for digital inputs or outputs INT The assembly instances are filled with ana
21. G75 and Sony Ericsson GT 48 see the product data sheet for specific warranty information Refer to Opto 22 form number 1042 for complete warranty information Wired Wireless controllers and brains and N TRON wireless access points are licensed under one or more of the following patents U S Patent No s 5282222 RE37802 6963617 Canadian Patent No 2064975 European Patent No 1142245 French Patent No 1142245 British Patent No 1142245 Japanese Patent No 2002535925A German Patent No 60011224 Opto 22 FactoryFloor Optomux and Pamux are registered trademarks of Opto 22 Generation 4 ioControl ioDisplay ioManager ioProject ioUtilities mistic Nvio Nvio net Web Portal OptoConnect OptoControl OptoDataLink OptoDisplay OptoEMU OptoEMU Sensor OptoEMU Server OptoOPCServer OptoScript OptoServer Optolerminal OptoUtilities PAC Control PAC Display PAC Manager PAC Project SNAP Ethernet 1 0 SNAP I O SNAP OEM I O SNAP PAC System SNAP Simple 1 0 SNAP Ultimate I O and Wired Wireless are trademarks of Opto 22 Activex JScript Microsoft MS DOS VBScript Visual Basic Visual C Windows and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation in the United States and other countries Linux is a registered trademark of Linus Torvalds Unicenter is a registered trademark of Computer Associates International Inc ARCNET is a registered trademark of Datapoint Corporation Modbus is a regis
22. H ier Module Defined Synchronous Copy Synchronous Copy File L Synchronous Copy File Source dABFillTank Source d amp BBottles_Filled Source mBGallons_Requested Trends Dest PAC 0 Data 0 Dest PAC 0 Data 1 Dest PAC 0 Data 2 amp Yo Configuration Length 1 Length 1 Lenath 1 1756 Backplane 1756 A17 fa 0 1756 L61 Bottling f 1 1756 ENET B EIP a Ethernet Rung of APP WER Now the ladder is ready to be downloaded IO4AB User s Guide www klinkmann com CHAPTER 6 CONNECTING PAC CONTROL AND ALLEN BRADLEY SYSTEMS Exchanging Data Online When online RSLogix will populate value fields something like this ft RSLogix 5000 Bottling 1756 161 Controller Tags Bottling controller File Edit View Search Logic Communications Tools Window Help alsia S sale oof aal E mle lal Rem Run RN eS No Forces E m oK M BAT Gio No Edits a Redundancy Bo 5 6 Controller Bottling Controller Tags E Controller Fault Handler 5 Power Up Handler SJ Tasks E MainTask E a MainProgram 2 Unscheduled Programs J Motion Groups Ungrouped Axes Add On Instructions 5 8 Data Types A User Defined Oa Strings i Add On Defined oe Predefined oa Module Defined Trends 2 6 1 0 Configuration abed UES v IPAC Control Basic watch 60 File Edit
23. Loop Only PID loops that have a reference count of zero can be deleted Be careful when deleting PID loops you cannot undo a deletion 1 In EtherNet IP Configurator select the Opto 22 device and then click the Configure PID Loops tab Right click the name of the PID loop and choose Delete from the pop up menu The PID loop is deleted You can also delete a PID loop in the Configure PID Loops dialog box by highlighting it and clicking Delete Algorithm Choices When you configure a PID loop in EtherNet IP Configurator choose one of the following algorithms Velocity Type C Velocity Type B ISA Parallel Interacting The only difference between Velocity Type C and Velocity Type B is the Term P equation see equations below The ISA Parallel and Interacting algorithms are functionally equivalent the only difference is the way the tuning constants are factored The identical and differing equations for all algorithms are shown in the following sections www klinkmann com IO4AB User s Guide CONFIGURING PID LOOPS Key to Terms Used in Equations Derivative tuning parameter In units Process variable the input to the PV PID TuneD of seconds Increasing magnitude increases influence on output SP Setpoint Output Output from the PID InLo j N Range of the input HI The Error PV SP from the previ InHi ous scan OutLo Integrator Anti windup is applied m
24. Module 34 Configuring the SNAP AICTD Module Input Assembly 0 00 cece eee ee eee 36 Configuring the SNAP AOV27 Module Output Assembly 000 ceeee eee eee es 38 Downloading the Configuration to the SNAP PAC I O Unit 0 0 cece cece ee ee ees 39 IO4AB User s Guide ii www klinkmann com Configuring an EthenNet IP Modules sscc2s5 tases ccg tase dedueddide daiedade dae dasedaades 40 Creating a MESSAGE OBJECT s cise core tevaunvewiseqeeedioar peace EE REEE EEEE EE SE E 43 Adding the MSG Instruction 0 0 ccc triir renirini ene nin rni ee ia ii 50 Configuring a MSG to Write an Assembly Instance 00 cece eens 52 Using User Data Types UDTS n ccc etre nner rereana teens 54 SUMIMANY seias iessen ends Dep nedG dep adgademme dae dagen de E e NEATE 55 Chapter 6 Connecting PAC Control and Allen Bradley Systems 0 57 EXCHANGING VALUES siacea es das degna ae dane ca remmegenewmndws oepmedhobond dgiawgas EES 58 Moding PAC CONIC Tersar ph ruts edrasniaaenmnia ah ENAERE NERKA 58 Adding a Generic Opto MMP Device 0 c eee e cece cette tee e teen teen eee e een e ed 58 WCC YING Chart erer chai dan pany Gob Gie wha tiie sa la ean iee eia iiien 60 Creating Scratchpad Assemblies with EtherNet IP Configurator 0 0c cece eee ee 63 Creating an Assembly To Send Data to the PLC 0 2 eee cece cence eee 63 Creating an Assembly To Accept Data from the PLC
25. Options Provides information on selecting a communications format Documents and Online Help You may also need the following Opto 22 hardware documentation depending on your application Installing and using SNAP PAC brains SNAP PAC Brain User s Guide 1690 Installing and using SNAP PAC R series controllers SNAP PAC R Series Controller User s Guide 1595 Installing and using SNAP PAC S series controllers SNAP PAC S Series Controller User s Guide 1592 Using the OptoMMP Communication Toolkit or the IEEE 1394 based OptoMMP memory mapped OptoMMP Protocol Guide 1465 protocol for programming IOAAB User s Guide www klinkmann com www klinkmann com CHAPTER 1 WELCOME Wiring specifications and installation information for SNAP Analog Input Modules SNAP Analog Input Modules Data Sheet 1065 Wiring specifications and installation information for SNAP Analog Output Modules SNAP Analog Output Modules Data Sheet 1066 Wiring specifications and installation information for SNAP High Density Digital Modules SNAP High Density Digital Modules Data Sheet 1556 Wiring specifications and installation information for SNAP Digital Input Modules SNAP Digital Input Modules Data Sheet 0773 Wiring specifications and installation information for SNAP Digital Output Modules SNAP Digital Output Modules Data Sheet 1144 Wiring specifications and installation information SNAP Is
26. Opto 22 device you can upload it to EtherNet IP Configurator and then modify it if necessary and reuse it on another device NOTE When uploading EtherNet IP configurations from PAC devices the following information is not stored on the I O unit and thus is lost during the upload PID names PID descriptions Point descriptions 4 channel digital module types Assembly Instance descriptions To upload a configuration 1 Inthe device tree select the Opto 22 device with the configuration you want to load EtherNet IP Configurator Opt File Edit Tools View Help D aw G Add new device SNAP PACH SNAP_PAC_51 Discovered Devices 00 40 3D 00 9D F8 Select an Opto 22 device 2 Choose Tools gt Upload Configuration from Opto 22 Device The following dialog box appears EtherNet IP Configurator 2 IO Point and Assembly configuration data will be imported from device SNAP_PAC_R2 This operation will overwrite existing configuration data Are you sure that you want to proceed 3 Click Yes to upload the configuration data This action overwrites the device s existing configuration data for any module position that is the same as the new configuration data IO4AB User s Guide www klinkmann com DOWNLOADING A CONFIGURATION Downloading a Configuration 1 To save the configuration choose File gt Save As browse to an appropriate directory name the file for example Opto_IO
27. PAC Display Using the Free Opto MMP Toolkit If you wish to use a custom PC application to access the data use the OptoMMP Communication Toolkit to access the scratchpad registers The free kit is available on the Opto 22 website www Opto22 com Search for part number OP DEV OPTOMMP IO4AB User s Guide MORE IDEAS FOR ACCESSING DATA IO4AB User s Guide www klinkmann com 7 Using EtherNet IP Configurator www klinkmann com This chapter expands on the information in the previous chapters about EtherNet IP Configurator and includes additional topics not covered there In this Chapter Importing an Existing COMPIQUIATION ssssssseseussesesssesenee 76 Uploading a Configuration from an Opto 22 Device 77 Adding a Device Manually w sssssssssescsssssessssssusesesssssssesee 78 Moding DEVICE aasscissssessascsesscensonsaisicccesisustebbsbanescdsensacntsnns 80 Changing a Devices IP AGCreSS esssesssssesseussscesesnseesseiuseestee 80 Adding and Deleting Assembly Ele ments 81 Moving Assembly M Mbers sssssssesssesssessseesessetensseeee Viewing a Configuration Report CONFIQUTING PID LOOPS sirinin Inspecting and TUNING PID LOOPS csssssssesssesenssesesssesese 93 Using I O Point FETUS 104 Referencing I O Points on SNAP PAC Racks cssssssseseneeeen 106 IO4AB User s Guide IMPORTING AN EXISTING CONFIGURATION Importing an Existing Configuration If you have an I O configuration created in Ether
28. and then click Save 2 Click the Verify tab and then click the Download button Or you can choose Tools gt Download Configuration to Opto 22 Device 3 Inthe Download Configuration dialog box select the device s IP address and then click Download SA Download Configuration to Opto 22 Device Address List Clear Settings Opto_22 IRIO Close Timeout msec 10000 4 When the configuration has downloaded successfully click Close Adding a Device Manually In addition to being able to add a discovered device you can also add a device manually To add a discovered device see Adding an Opto 22 Device on page 12 1 In the device tree double click Add new device S Untitled EtherNet IP Configu File Edit Tools View Help Do ei e Add new device lnnaned Dev Discovered Devices IO4AB User s Guide www klinkmann com www klinkmann com 2 CHAPTER 7 USING ETHERNET IP CONFIGURATOR In the New Device Definition dialog box at minimum enter the Device Name select the Device Type and enter the IP address for the device New Device Definition Device Name Opto_22 0_B Description Device Type SNAP PAC EB2 IP Address 10 172 44 115 Port 2001 Temperature Fahrenheit Celsius Watchdog No C Yes Cancel Device Name Enter a name for the remote I O The name must start with a letter and may contain letters numbers and underscores Spaces are co
29. assembly provides the format for the implicit message packet that includes the information for the point or points you are interested in For help with choosing a messaging type see the next section Choosing the Messaging Type IO4AB User s Guide USING CIP OBJECTS Choosing the Messaging Type Implicit messaging is the normal way to communicate with I O However there are times when explicit messaging is more appropriate See the reasons below for why you might use one messaging type over the other All of these apply for a properly configured Ethernet network wired or wireless Reasons for Using Implicit Messaging e For typical communications with I O also called O messaging where an item is scanned or repeated e Fora simpler implementation and less programming in ladder logic Programming in ladder logic is required for explicit messaging e Ifyou want the SNAP I O to send data at stated intervals to one or more PLCs without waiting for a request input instance or if you want the PLC to do the same output instance For instructions for using implicit messaging see 4 Setting Up Implicit Messaging on page 23 Reasons for Using Explicit Messaging e If you want the PLC to initiate communication at specific points in your ladder logic e For communication among controllers such as exception handshaking and access e For more complex commands that are not suited to scanning For example Read and Cl
30. better determined in the tuning process Changing a PID Loop You can change the PID loop s configuration and its position in the I O unit 1 In EtherNet IP Configurator select the Opto 22 device and then click the Configure PID Loops tab The Configure PID Loops tab lists all configured PID loops Remember that the number of PID loops available depends on the Opto 22 device 96pidloops EtherNet IP Configurator File Edit Tools View Help D E EEM ME Add new device Selected io55Vout Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies 4 gt d ioS6HDAPID96 evice Discovered Devices Setpoint 00 A0 3D 01 30 99 aisBHDA 0000 LC 3 01 pid0001 ai56HDA_0001 pid0002 ai 6HDA_0002 Delete pid0003 ai56HDA_0003 T pid0004 aiS6HDA_O0004 Modify pid0005 aiS6HDA_0005 ces pid0006 ai56HDA_0006 Up and down pid0007 ai56HDA_0007 pid0008 ai56HDA_0100 PLC arrows EJ o4 users Guide www klinkmann com 2 3 CHAPTER 7 USING ETHERNET IP CONFIGURATOR PID loops are scanned by the I O unit in the order that they appear in this list To move the PID loop to a different position on the I O unit use the up and down arrows in the dialog box To change the PID loop s configuration double click its name to open the Edit PID Loop dialog box Change the fields as necessary For help in completing the fields see Adding a PID Loop on page 87 Deleting a PID
31. can set the timer to a reasonable interval e g 1 second However if the wide area networking is unreliable or fairly limited in bandwidth set the timer for longer intervals such as 1 minute The longer timer allows the message to complete fully even if it ends in an error in response to a communication request The ladder must now inspect to see when the message operation is complete or has completed in error Check the Boolean attributes of either DN or ER to inspect whether the message is done or ended in an error I04AB User s Guide www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING fo RSLogix 5000 Explicit_Messaging 1756 161 MainProgram MainRoutine Ef Fie Edt View Search Loge Communications Tools Window Help alsa S 4 6 2 alaale Gig alal o LAr A Hlal alol gt ID lt gt f Favornes Aan K Aime A Bt TrarRorte 1 ay vel salestuslue Flag to indicate a Flag to indicate a read is occurring Read_in_Progress 1 0 Configuration 1756 Backplane 1756 A10 fo IN 175A 4161 Fenle Macs Y gt Rung 1 in this example is incomplete When the XIC for Read_Message DN closes the explicit data read is available Should the Explicit Message fail the XIC for Read_Message ER will close In either case the typical ladder implementation will add additional logic to handle both successful and unsuccessful communications The EtherNet IP port is responsible for managing the TCP IP communi
32. configuration is downloaded to the Opto 22 device Each PID loop must be individually configured and tuned Tuning steps are described in Inspecting and Tuning PID Loops on page 93 For additional information see form 1641 OptoTutorial SNAP PAC PID 1 In EtherNet IP Configurator select the Opto 22 device and then click the Configure PID Loops tab Configure PID Loops tab 96pidloops EtherNet IP Configurator Opto 22 File Edit Tools view Help device Dea gt Midd new device Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verify io56HDAPID96 Li t Discovered Devices Name Ipt Setpoi Owes 00 A0 3D 01 30 99 00 pid55Vou 0000 PLC PLC ot Use unused 02 Not Used number Not Used Not Used Not Used Not Used Not Used Not Used 2 Double click the lowest unused number to open the Add PID Loop dialog box 3 Complete the Add PID Loop dialog box as detailed below and then click OK IO4AB User s Guide www klinkmann com CONFIGURING PID LOOPS Add PID Loop A Name B Description C Input 1 0 Point z aov out55_0000 v Square Rool D E Low Range 0 High Range 10 F Setpoint 1 0 Point v facVout55_0000 G Output 1 0 Point z aoVout55_0000 X H Lower Clamp 10 Upper Clamp 10 I Min Change 0 Max Change fo Output options for when the input is out of range J F Switch to manual mode when input goes out of range Force output when input is out
33. destination for the PID output Manual mode allows RSLogix logic or an operator to control the PID output which in turn is written by the PID loop to the analog point or configured destination of the PID output IO4AB User s Guide EJ CONFIGURING PID LOOPS NOTE If the value of the analog point or configured destination is changed it will be overwritten by the PID output PID Setpoint Analog Input Output gt Output TT M Scan Rate Enter a scan rate to determine how often the input is scanned and the controller output is calculated Minimum value is 0 001 1 ms Scan time should be greater than system lag the time it takes for the controller output to have a measurable effect on the system Also consider other PIDs and tasks on the brain competing for processing power N Gain Type a positive or negative value for Gain Heating systems usually require a negative value and cooling systems a positive value NOTE Gain is usually refined during the tuning process O Fd Fwd Initial Fd Fwd Gain Optional Enter Feed forward Initial and Feed forward gain values if you need to offset the controller output in your application These values are constants that are multiplied and added to the controller output often they are not used in PIDs P Tune I Tune D Optional Type Integral and Derivative settings if you know the desirable settings However Integral and Derivative are not essential to basic configuration and are
34. form enet um001_ en p pdf MicroLogix PLCs such as the 1100 and 1400 support 8 TCP IP connections A SLC 5 05 supports 64 TCP IP connections These limits are described in each product s published specifications IO4AB User s Guide www klinkmann com APPENDIX C WORKSHEETS AND CALCULATIONS EtherNet IP Multicast Requirements PLC Worksheet www klinkmann com Each EtherNet IP application should be reviewed for its multicast requirements The following worksheet will assist in determining the number of connections required for each Allen Bradley PLC within the system Multicast Connections for each PLC in the system Quantity Total How many Generic Ethernet Modules with status How many remaining Generic Ethernet Modules How many consumed tags to other EtherNet IP PLCs How many produced tags to other EtherNet IP PLCs Total Number of Multicast Connections add Total column together This total reflects the total number of CIP connections required for the application Use the latest version of the EtherNet IP Capacity Tool to accurately determine limits of your application This is only necessary in applications that have large numbers of I O especially when PLCs themselves are producing and consuming tags NOTE Only some of the ControlLogix EtherNet IP modules support implicit messaging The modules that support implicit messaging are the 1756 ENBI 1756 EN2T and the 1756 EN2F EtherNet IP modules IO4
35. if you do not plan to run your example project you do not need a Learning Center Make sure to assemble the Learning Center according to the instructions that are included For more information about obtaining a SNAP PAC Learning Center go the Opto 22 website www Opto22 com and search on the part number EtherNet IP Configurator installed on your computer see below EtherNet IP Configurator is available as a free download from our website www opto22 com and it is included with the CD that came with the Opto 22 device RSLogix 5000 version V13 or newer installed on your computer ControlLogix PLC 1756 L6x with a 1756 ENBT A 1756 EN2T or 1756 EM2F EtherNet IP module You can also use a CompactLogix 1769 L32E a DriveLogix 700s Version 2 or a SoftLogix IO4AB User s Guide INSTALLING ETHERNET IP CONFIGURATOR NOTE Ifyou have an SLC 5 05 MicroLogix 1100 FRN4 or newer or MicroLogix1400 FRN4 or newer you can also connect the two systems and use Explicit Messaging to access data For more information see D Connecting with SLC5 or MicroLogix on page 121 e An industrial managed Ethernet switch Installing EtherNet IP Configurator The easy to use EtherNet IP Configurator provides the tools you need to configure modules and points create input and output assemblies and download a configuration to an Opto 22 device EtherNet IP Configurator is available as a free download from our website www opto22 com and it
36. input changes from off to on The count accumulates until it reaches the maximum count available in the remote I O or until you reset the counter to zero For example to count the number of widgets produced per shift Counters you would clear the counter at the start of each shift and read it at the end of each shift For points on a 4 channel module the speed of the counter depends upon the brain or con troller s capabilities and the speed of the module used For points on a high density module counting is done in the module input Frequency is the speed with which a digital point changes state and is usually mea Frequency sured in counts per second For example reading the frequency can help you determine the measurement A speed of rotating machinery input When the value of a digital input point changes from off to on an on latch is automat Latches ically set While the value of the point may return to off the on latch remains set as a record of the change until you clear it Similarly an off latch is set when the value of a digital point changes from on to off and it remains set until cleared input Period refers to the elapsed time for a complete on off on transition on a digital point Period Ei meas rem nt Measurement starts on the first transition either off to on or on to off and stops on the next transition of the same type one time or continuous or both Pulse duration input
37. is included with the CD that came with your Opto 22 device If you are using the download double click the downloaded file The installation wizard should start automatically Follow directions to install the software If you are using the CD insert the CD in your CD ROM drive The installation wizard should start automatically If it doesn t use Windows Explorer to navigate to your CD ROM drive and then double click setup exe Follow directions to install the software Adding an Opto 22 Device The best way to add an Opto 22 device to the network and also the configuration is to allow EtherNet IP Configurator to discover the device To add a device manually see Adding a Device Manually on page 78 To open EtherNet IP Configurator select Start gt All Programs gt Opto 22 gt EtherNet IP gt EtherNet IP Configurator IO4AB User s Guide www klinkmann com CHAPTER 3 GETTING STARTED Tabs for configuring A a ZA PAC R2 Cookies EtherNet IP Configurator BAE I O modules and ie Edit Tools View Help assemblies i Add new device SNAP_PAC_R Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verify Toolbar 10 182 65 116 SNAP PAC R1 Modules and Points Type Feature Scaling Units Watchdog 7 SNAP_PAC_EB Add Configured 10 182 65 118 d Vi S SNAP PAC EB1 evice Discovered Devices n 00 A0 3D 00 C1 48 00 40 3D 01 51 D8 7 00 40 3D 01 51 DF Expand All D
38. it is implemented in Opto 22 products It also provides guidance in selecting a messaging type Built on the standard TCP IP suite of protocols EtherNet IP gets the IP part of its name from CIP the Common Industrial Protocol As the name implies EtherNet IP adapts CIP to standard Ethernet technology and thus provides tools to deploy manufacturing applications on an enterprise network Introduced in 2001 EtherNet IP is now supported by hundreds of vendors around the world and is a standard networking solution in industrial automation In this Chapter CHT 2 AAG ssc ccsscccste sccaceccstacenenssiansnivrn Opto 22 PrOCUCTS ween PRM cssssscrssasitrnnctedonacetaice Implicit and Explicit Messaging Wing CIP OPES aacssscnentecesansersnocersascesnsaosorsteeesstans SS CUTTS INS assasecssscssevsasssvaisesdassassncsseoassenssoneseensonien Opto 22 Advantage Using EtherNet IP Allen Bradley Logix controllers can communicate with remote Opto 22 I O and take advantage of Opto 22 s distributed intelligence With distributed intelligence a controller such as an Allen Bradley controller handles overall control but does not have to attend to every detail of every process The I O s own onboard processor also called a brain or device has the intelligence to handle not only on off control but also functions such as latching counting thermocouple linearization even PID loops With these functions running locally on the I O unit they st
39. of range auto mode only i K ithm Velocity TypeC Gain Feed Fwd Initial O L Mode Auto L Tune Fees Fwd Gain jt M Scan Rate i Tune D P Cancel A Name Type a unique descriptive name for the PID The name must start with a letter and may contain letters numbers and underscores spaces are converted to underscores B Description Optional Enter a description of the PID Input Select the type of input I O Point PLC or PID Output Ifthe PID s process variable comes from an I O point on the same unit select I O Point Choose the point from the drop down list or type a point name to configure a new point Ifthe PID s process variable comes from the Allen Bradley controller select PLC Enter an initial value for the input Ifthe PID s process variable is the output of another PID on this brain a cascading control loop select PID Output Choose the PID from the drop down list D Square Root Optional If you chose I O Point or PID for step C check this box if the error should be calculated based on the square root of the process variable applies to flow control systems where volumetric flow is proportional to the square root of a signal from a flow transducer E Low High Range Set the valid range of the process variable by entering the low range and the high range See Output Options for optional responses to out of range input F Setpoint Choose the source for the
40. represent the input value as wire compensated ohms Wire compensation means that the module provides instrumentation wire resistance compensation internally For the SNAP AIRTD 0 counts means 0 ohms 24 999 counts indicate 400 ohms A 10 over range is provided so 27 499 will be reported for 440 ohms of input resistance If you are using counts for the SNAP AIRTD and SNAP AIR40K you must must provide your own linearization In this case using scaled engineering is recommended For additional information on determining the temperature from the probe resistance see Linearizing the Pt100 and Pt1000 Probes from Resistance on page 111 Load Cell Inputs When using the SNAP AILC and SNAP AILC2 load cell modules only use the scaled engineering units These modules output a higher resolution as counts which is too large of a number for a 16 bit signed integer a type INT too handle NOTE Firmware versions R8 5 and newer support the load cell module Use the Load Cell assembly class not the Analog Input class for load cell values IO4AB User s Guide www klinkmann com APPENDIX B USING COUNTS Analog Outputs SNAP analog output modules are based on 12 bits Unipolar output modules have a range of 0 counts to 4095 counts Bipolar have a counts range of 4096 to 4095 Analog outputs do not have the 10 over range that analog inputs have Linearizing the Pt100 and Pt1000 Probes from Resistance www klinkmann com If you wou
41. 0 33 3737 0 77421 351 0 24 5218 0 748991 366 0 15 9767 0 725644 IO4AB User s Guide LINEARIZING THE PT100 AND PT1000 PROBES FROM RESISTANCE Table 3 Pt100 Platinum RTD 200 TO 850 C Alpha 0 00385 Table Range from 17 0 to 391 0 Ohms 17 0 242 952 2 323969 26 0 243 957 2 362626 35 0 245 257 2 399766 45 0 246 907 2 436427 56 0 248 793 2 47011 67 0 250 836 2 500594 79 0 253 104 2 529302 92 0 255 638 2 556855 106 0 258 572 2 584534 120 0 261 869 2 612006 133 0 265 501 2 639312 146 0 269 615 2 667492 159 0 274 242 2 696595 172 0 279 416 2 726672 185 0 284 944 2 756555 197 0 290 783 2 786194 209 0 297 182 2 81681 221 0 304 176 2 848458 233 0 311 804 2 881198 245 0 319 755 2 913648 256 0 327 971 2 945745 267 0 336 831 2 978926 278 0 346 374 3 013254 289 0 356 646 3 048797 300 0 367 181 3 083915 310 0 377 91 3 118524 320 0 389 366 3 154325 330 0 401 597 3 191389 340 0 414 654 3 22979 350 0 427 878 3 267574 359 0 441 182 3 304632 368 0 455 294 3 34298 377 0 470 266 3 382694 386 0 482 558 3 414538 I1O4AB User s Guide www klinkmann com C Worksheets and Calculations www klinkmann com This appendix provides a variety of worksheets to help you determine your system s requirements In this Appendix EtherNet IP TCP IP Requirements PLC Worksheet 116 Eth
42. 0 Value Location for f32PACGallons_In_Tank Creating an Assembly To Accept Data from the PLC This section describes how to create assembly instance 101 which will be used to accept data from the Allen Bradley PLC This is similar to creating assembly instance 100 1 Follow the directions in the previous section for creating assembly instance 100 except note the minor differences for the Element values EJ saa users Guide www klinkmann com CHAPTER 6 CONNECTING PAC CONTROL AND ALLEN BRADLEY SYSTEMS When completed assembly 101 should look similar to this Untitled EtherNet IP Configurator File Edit Tools View Help D W tela Add new device SNAP_PAC_S2 Configure 1 0 Modules amp Paints Configure PID Loops Configure Assemblies Verity Discovered Devices Assembly Instance 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 Description Data from 4 B PLC to PAC Control Assembly Members Attribute 32 Scratchpad DINT Element 2 Value Add 32 Scratchpad DINT Element 3 Value 32 Scratchpad REAL Element 1 Value Delete Modify 2 Jo download the configuration to the PAC controller choose Tools gt Download Configuration to Opto 22 Device The following dialog box appears Download Configuration to Opto 22 Device p Address List SNAP_PAC_S2 The PAC Controller 2001 10 154 92 57 Clear Settings Close Timeout msec froooa 3
43. 0 packets per second Allen Bradley form ENET AP001D EN P specifies the entire calculated rate should not exceed 90 of the maximum packet rate of the EtherNet IP module The calculations described above only accumulate a portion of the EtherNet IP messaging rate We strongly recommend reviewing Allen Bradley forms ENET AP001 and 1756 RM094 to ensure that all other sources of EtherNet IP traffic are considered when validating your system design The Ethernet topology and switches are also responsible for the response rate and maximum throughput of an EtherNet IP implementation We encourage you to evaluate the performance of your Ethernet network topology IO4AB User s Guide ETHERNET IP MODULE PACKET RATE LIMITS IOAAB User s Guide www klinkmann com D Connecting with SLC5 or MicroLogix This appendix provides information for connecting to an SLC5 05 PLC or to a MicroLogix 1100 or 1400 PLC In this Appendix Connecting 2 PAC witha SLCS O5 PLC ocsccsscssssssssescsscsscscoessseesisseeee 121 Connecting a PAC with a MicroLogix 1100 or 1400 PLC s 123 Connecting a PAC with a SLC5 05 PLC You can use SLC5 05 processors to read and write I O data from a SNAP PAC lO4AB implementation using the EEM EtherNet IP Explicit Message command which is the equivalent for the Logix family MSG instruction implementing explicit messaging over EtherNet IP For more information see the Allen Bradley document 1747 rm001_ en p pdf
44. 3 Hex This is a set Attribute option Instance 100 This is assembly instance 100 that you configured within the EtherNet IP Configurator For more information on the Class and Attributes see form 1770 the EtherNet IP for SNAP PAC Protocol Guide So far the Message Configuration dialog box should look like this Message Configuration Read_Message Configuration Communication Tag Message Type CIP Generic x pave Get Attribute Single Source Element o j Source Length jo Bytes Service merry le Hes Class ja Hex Destination wf Instance frog Attribute 3 Hex Tene Enable Enable Waiting Start Done Done Length 0 Eror Code Extended Error Code J Timed Out Error Path Error Text Cancel Apply Help I04AB User s Guide www klinkmann com www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING For the Destination click the New Tag button to open the New Tag dialog box Create a variable with the following attributes Name ICTD_Temperature Data Type REAL Scope Explicit_Messaging Click OK to close the New Tag dialog box New Tag Name ICTD_Temperature OK Description Cancel Help Type Alias For Data Type REAL Scope fa Explicit_Messaging Style Fo o YS F Open Configuration 10 In the Destination field select the new controller scoped tag In a MESSAGE object the Source Element and
45. AB User s Guide SNAP PAC CONNECTION WORKSHEETS SNAP PAC Connection Worksheets Complete the following worksheet for each SNAP PAC brain or controller used within an EtherNet IP system EtherNet IP SNAP PAC Multicast Connection Worksheet The SNAP PAC brain or controller supports 16 multicast connections If this limit is exceeded EtherNet IP modules will have difficulties connecting to the SNAP PAC brain or controller Quantity Total How many Generic Ethernet Modules with status x2 How many remaining Generic Ethernet Modules Total number of Multicast Connections add Total column together EtherNet IP SNAP PAC Encapsulation Connections The SNAP PAC brain or controller supports 16 CIP encapsulation connections for EtherNet IP The following worksheet will assist to determine the application requirements for each SNAP PAC device within the Allen Bradley system Typically for explicit messaging a PLC will create one encapsulation using TCP IP connection to the PAC Use only unconnected messaging configured in the MSG instruction This will ensure that the PLC will not quickly exceed the encapsulation connection limit of the PAC The PLC will also create a UDP encapsulation connection for each implicit messaging multicast session Quantity Total Number of PLCs with Explicit Messaging access Total Generic Ethernet Modules w Status accessing this device x2 Total Generic Ethernet Modules accessing this devi
46. AC R S controller 4 Enter the IP address of the SNAP PAC controller in the IP Address field In our example the IP address of the controller is 10 154 92 57 IO4AB User s Guide Double click on the Unnamed_Device in the device tree to open the Modify Device Definition CREATING SCRATCHPAD ASSEMBLIES WITH ETHERNET IP CONFIGURATOR Modify Device Definition 5 Click OK to close the dialog box then click the Configure Assemblies tab Device Name SNAP_PAC_S2 Description The PAC Controller Pott 2001 Device Type swaP Pac s1 32 IP Address 10 154 92 57 Temperature Fahenhet Celju Watchdog No Yes omen The tab opens assembly instance 100 which you will use to send the appropriate scratchpad data to the Allen Bradley PLC Untitled EtherNet IP Configurator File Edit Tools Yiew Help Deals eela Add new device SNAP_PAC_S2 Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Discovered Devices Assembly Instance 100 J 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 Description Assembly Members 6 Begin populating assembly instance 100 by clicking the Add button to open the Add Assembly Member dialog box IO4AB User s Guide Add Assembly Member Description Attribute Instance Information Point Name Ramp Controller PID Loop Controlle
47. Click the Download button The following status information should appear showing that the configuration has been successfully saved to flash I04AB User s Guide www klinkmann com MODIFYING THE RSLOGIX 5000 LADDER Download Configuration to Opto 22 Device Name Description Port Address List SNAP_PAC_S2 The PAC Controller 2001 10 154 92 57 Clear Settings Close Timeout msec si M gt 10000 lt lt Details Configuring Device 10 154 92 57 16 of 16 Assembly Instances successfully configured Configuration saved to flash Device 10 154 92 57 Complete 4 f you haven t already done so choose File gt Save As to give your configuration project a name and to save it for later use Once you have created assemblies 100 and 101 using EtherNet IP Configurator the next step is to use RSLogix 5000 to add some code to exchange data with the Assembly Instances you just created Modifying the RSLogix 5000 Ladder In this section you will do the final step of integrating the two systems together by adding functionality to the PLC s ladder The instructions are for a ControlLogix PLC 1756 L61 In previous sections you modified the scratchpad read and write values in the PAC Control strategy and you used EtherNet IP Configurator to configure the PAC Controller to expose the scratchpads with Assembly Instances 100 and 101 In the following exercise you will add the interface to RSLogix 5000 1 Adda Gener
48. Configurator the limit of each assembly instance decreases For the SLC 5 05 an assembly instance may not exceed 62 DINTs 32 bit integers The COP instruction may be used to copy bitwise REAL 32 bit floating point values that are within the EtherNet IP Configurator s assembly instance The copies should be implemented after the completion of each successful EEM read operation The COP should precede the initiation of an EEM write operation to ensure the write has the very latest data state Connecting a PAC with a MicroLogix 1100 or 1400 PLC www klinkmann com You can use a MicroLogix 1100 Series B or 1400 to read and write I O data using IO4AB Assembly Instances configured in the EtherNet IP Configurator may be read and written using the MSG instruction Each MSG instruction must have it s own RIX Extended Routing Information file and MSG files Add these files before configuring the MSG instruction in the ladder To add more Message files follow these instructions 1 While offline select the data files folder in the RSLogix Micro project pane followed by a right mouse click Select New Add a new file of the type Message Give the file a name such as Message1 If desired enter a description Elements should be set to 1 the default Select Global the default Press OK To add additional Extended Routing Information files follow these instructions 1 While offline select the data files folder in the RS
49. Control Engine Debug Chart Subroutine Mode Tools Yiew Watch Window Help i config FU pebuo a a Cookies Name Type Control Engines a GABBottles_ Filled Integer 32 Variable oe Subroutines Include GABFill Tank Integer 32 Variable Charts f32 T Float Variabile 2 Data_Sharing 1S2PAacBufter Tan Integer 32 Variable a gt Powerup i32PACTank Contents Integer 32 Variable Variables rABGallons_ Reque Float Variable 150000 B Numeric Variab J dABBottles_ 132 HE dABFill_Tan BY 32PACGalh FA i32PACBuff PA i32PACTanI dal noa Da v Jb Next F Prev PAC Control Ready IO4AB User s Guide www klinkmann com MORE IDEAS FOR ACCESSING DATA More Ideas for Accessing Data Once the data is exposed into the PAC Controller s scratchpads the following methods are available to access it OptoOPCServer The Opto 22 OptoOPCServer is a high performance multithreaded OPC DA 2 0 complaint data server Using SCADAs and OPC Clients to access data the scratchpad registers created in the example exercise are accessible using the OptoOPCServer The following table translates which variables belong to the appropriate tags i32PACBuffer_Tank_Ready mmiolip tcp 10 192 54 75 2001 sp_integer 0 i32PACTank_Contents mmiolip tcp 10 192 54 75 2001 sp_integer 1 dABFill_Tank mmiolip tcp 10 192 54 75 2001 sp_integer 2 dABBottles_Filled mmiolip
50. DC Digital Input a a 01 SNAP ODCSSRC 5 60 VDC Source Digital Output E E 02 SNAP ADV 27 Analog Output Po E E 03 SNAP AICTD Analog Input Modify E a 04 SNAP AIY Analog Input 06 Not Used Expand All Not Used Collapse All 4 Enter the correct IP address for the PAC R controller IOAAB User s Guide www klinkmann com CREATING AN ASSEMBLY INSTANCE Modify Device Definition Device Name SNAP_PAC_IO Description Device Type SNAP PAC R2 Z IP Address 10 183 57 100 i Enter the PAC R s IP address Port 2001 Temperature C Fahrenheit Celsius Watchdog No C Yes Cancel This is important because the imported configuration will likely have the local loopback address for the I O unit 127 0 0 1 instead of the IP address for the PAC R In order to communicate with the PAC R EtherNet IP Configurator needs the device s IP address Configuring the SNAP AICTD Module Input Assembly The input assembly s role in this exercise is to read the temperature as a REAL a 32 bit float 1 In EtherNet IP Configurator open the ioCookies I O configuration as described in the previous section then expand the configuration for the SNAP AICTD module in slot 3 2 Notice that point 0 of slot 3 connects to the process temperature probe ioCookies_10_Configuration EtherNet IP Configurator File Edit Tools Yiew Help Oa id Add new device SNAP_PAC_IO Conf
51. Get IoUnitScratchPadInt32Element ioLlocal 2 dA4BFill_Tank GetIoUnitScratchPadInt32Element ioLocal 3 dA amp BBottles_Filled get the float scratchpad value emplaced by the A B PLC GetIoUnitScratchPadFloatElement ioLocal 1 rAdBGallons_Requested i 2 IO4AB User s Guide MODIFYING PAC CONTROL Using an action block sequence of commands to retrieve the A B PLC scratchpad values UInstructions Data_Sharing Read Scratchpads Get 32 bit Integers from Scratchpads Comment Single Line Get I O Unit Scratch Pad Integer 32 Element 1 0 Unit ioLocal Index 2 Put Result in dABFill_Tank Put Status in dABBottles_Filled Get I O Unit Scratch Pad Integer 32 Element V O Unit ioLocal Index 3 Put Result in dABBottles_Filled Put Status in dABBottles_Filled Get Floats from Float Scratchpads Comment Single Line Get 1 0 Unit Scratch Pad Float Element VO Unit ioLocal Index 1 Put Result in rABGallons_Requested Put Status in dABBottles_Filled See the next section for more scratchpad read and right commands Scratchpad Read and Write Commands Here is a complete list of the PAC Control scratchpad read and write commands Scratchpad Read Commands e Get I O Unit Scratch Pad Float Element e Get I O Unit Scratch Pad Float Table e Get I O Unit Scratch Pad Integer 32 Element e Get I O Unit Scratch Pad Integer 32 Table e Get I O Unit Scratch Pad String Element e Get I O Unit Scratch Pad
52. INT Bit Size Class Instance tribute 0 0 a DiscretelnputPoint diSwitch_DO Mod 00 PtO0 Value Add 1 0 1 DiscretelnputPoint diSwitch_D1 Mod 00 PtO1 Value 2 0 2 DiscretelnputPoint diButton_Ct2 Mod 00 Pt02 Value Delete 3 0 3 DiscretelnputPoint diButton_Ct3 Mod 00 Pt 03 Value Ce es Ee eee a ee eee aa Modif 5 1 0 32 AnaloglnputPoint aiPID_Input Mod 03 PtOO Value M 6 2 0 32 AnaloglInputPoint aiRoom_Temp Mod 03 Pt value zj The input assembly instance is now once again formatted properly with 32 bit words Viewing a Configuration Report www klinkmann com Available in the Tools menu are reports that provide a snapshot view of the configured assemblies and I O An Assembly Configuration Report shows all of the entries contained in the current assembly instance including the element number bit size and description It also indicates any errors and whether or not the assembly is configured properly for download It is helpful to check for errors in this report before you download the configuration to the device P AssemblyConfigReport txt Notepad File Edit Format View Help Pevice SNAP_PAC_R Type SNAP PAC R1 IP Address 10 182 64 115 ASSEMBLY VERIFICATION Total Assembly Members 7 4096 Max Total Assembly Size 2 DINTs 125 Max All assembly Instances are configured properly OK to download this Assembly ASSEMBLY DETAILS Assembly Instance 100 size 2 DINTs CLASS INSTANCE ATTRIBUTE DiscreteoutputPoint A
53. IO4AB USER S GUIDE SNAP PAC S1 SNAP PAC S2 SNAP PAC R1 SNAP PAC R2 SNAP PAC EB1 SNAP PAC EB2 SNAP PAC S1 W SNAP PAC S2 W SNAP PAC R1 W SNAP PAC R2 W SNAP PAC EB1 W SNAP PAC EB2 W SNAP PAC S1 FM SNAP PAC R1 FM SNAP PAC R2 FM SNAP PAC EB1 FM SNAP PAC EB2 FM Form 1909 111010 October 2011 OPTO 22 www klinkmann com IO4AB User s Guide Form 1909 111010 October 2011 Copyright 2011 Opto 22 All rights reserved Printed in the United States of America The information in this manual has been checked carefully and is believed to be accurate however Opto 22 assumes no responsibility for possible inaccuracies or omissions Specifications are subject to change without notice Opto 22 warrants all of its products to be free from defects in material or workmanship for 30 months from the manufacturing date code This warranty is limited to the original cost of the unit only and does not cover installation labor or any other contingent costs Opto 22 I O modules and solid state relays with date codes of 1 96 or later are guaranteed for life This lifetime warranty excludes reed relay SNAP serial communication modules SNAP PID modules and modules that contain mechanical contacts or switches Opto 22 does not warrant any product components or parts not manufactured by Opto 22 for these items the warranty from the original manufacturer applies These products include but are not limited to OptoTerminal G70 OptoTerminal
54. Logix Micro project pane followed by a right mouse click Select New Add a new file of the type Extended Routing Information Give the file a name such as RIX1 If desired enter a description Elements should be set to 1 the default Select Global the default Press OK Now you can add the MSG instruction to the ladder See below for descriptions of the values when configuring the MSG instruction O NOO ui SP SN eS Se a IO4AB User s Guide CONNECTING A PAC WITH A MICROLOGIX 1100 OR 1400 PLC General Tab This Controller Channel 1 Integral Communication Command CIP Generic Data Table Address Insert the address to read or write data Number of Elements Target Device Message Timeout This is automatically set Extended Routing Info File Routing Register File create a unique file for each MSG Service Either Read Assembly or Write Assembly Class 4 hex Instance Use the E IP Configurator s Assembly Instance number from 100 to 115 Attribute 3 hex MSG MG9 0 1 Elements Genera MutiHop Send Data Receive Data This Controller Control Bits Chernet neg Ignore timed out T0 0 Communication Command CIP Gerec Gask Connecter BENO Data Table Address Receive Aao Eeen EW Size in Bytes Receive 4 Send Enor ER 0 Target Device Message done DN 0 Message Timeout 5 Mes
55. Name Name l Description IP Address 3 p C Host Name Slot f Revision E z fi Electronic Keying Compatible Keying z V Open Module Properties Cancel Help IO4AB User s Guide CONFIGURING AN ETHERNET IP MODULE 7 Enter or select the following Name ENBTA Description The 1756 ENBT A in slot 1 Slot 1 Revision minor 9 Recall that our EtherNet IP module has a revision of 3 9 The 9 is the minor revision number The other parameters are not necessary so leave the other fields blank The completed dialog box should look like this New Module Type 1756 ENBT 4 1756 10 100 Mbps Ethernet Bridge Twisted Pair Media Vendor Allen Bradley Parent Local eos ENBTA r Address Host Name Description The 1756 ENBT A in slot 1 IPAddress oo C Host Name Slot fi E Revision 3 x fg Electronic Keying Compatible Keying z IV Open Module Properties Cancel Help 8 Click OK I04AB User s Guide www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING The RSLogix window should now look like this ft RSLogix 5000 Explicit_Messaging 1756 L61 File Edit View Search Logic Communications Tools Window Help Blase al sel oA ial ite lel lal Ferman gt Offline fl E RUN Ey Path knone gt v amp z No Forces tool bel 1H ji D ALEI Favorites A EO No Edits Controller Explicit_Messaging E Module Propert
56. Net IP Configurator you can import its otg Opto Tag Database file and from it create a new configuration NOTE You can also use an otg file created in Opto 22 s PAC Control or PAC Manager For more information see the user s guides for those products form 1700 for PAC Control and form 1704 for PAC Manager 1 In the EtherNet IP Configurator main window click the Open button D or choose File gt Open to open the Tag Database dialog box Open Tag Database Look in O Configuration Files et EB s Opto_22_Config otg File name Opto_22_Contig otg Files of type Opto Tag Database Files otg Y Cancel 2 Locate the configuration otg file and click Open EtherNet IP Configurator Opto_22_Config File Edit Tools View Help eE EAE Add new device C Configure 0 Modules amp Points Configure PID Loops Configure Assembles Verity SNAP_PAC_R2 SNAP_PAC_S1 Modules and Points Type Features Subty Units Discovered Devices 5 00 SNAPADCSD 2 5 28 VDC Digital Input E a 01 SNAP ODCS5SRC 5 60 VDC Source Digital Output p 02 SNAP A0V 27 Analog Output a 03 SNAP AICTD Analog Input E 04 SNAP AIV Analog Input Expand All Collapse All O4AB User s Guide www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR Uploading a Configuration from an Opto 22 Device If there is an existing configuration that you want to use loaded on an
57. Point The classes available for implicit messaging in the EtherNet IP Configurator are a subset of the CIP classes all of which are available through explicit messaging For information on the CIP classes and attributes see form 1770 the Ethernet IP for SNAP PAC Protocol Guide I04AB User s Guide www klinkmann com www klinkmann com 4 CHAPTER 4 SETTING UP IMPLICIT MESSAGING Under Instance Information select a point that you have configured Otherwise you can assign an assembly member to a specific module and point Add Assembly Member Description Instance Information Attribute Discrete Output Point Point Name FeatureS elect Analog Input Point FeatureE nable Photo_Sensor Mod 00 Pt 0 FeatureValue Photo Sensor Mod 00803 aa Scratchpad STRING r Module i z Pulse And TPO Generator c Ramp Controller Point PID Loop Controller Communication Watchdog Pad Under Attribute select an item in the list The attribute list allows you to define what information from each point you want to have passed in the implicit message In addition to value readings you can get other data such as the minimum or maximum value for an analog input output Click OK and follow any directions that appear for the class type For example the Fill Module dialog box appears for DiscretelnputPoint and Analog nputPoint Fill Module Would you like to fill the rest of the module with the same type of point
58. SNAP AIARMS SNAPAITM2i Cancel 2 Inthe Add Module dialog box choose Analog Input or Analog Output and then choose the exact module part number from the list Click OK 3 In the Configure I O Points amp Modules tab click the plus sign next to the new module to expand it Notice that the module icon is color coded to reflect the type of module being configured blue for analog input green for analog output Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verify Modules and Points Features Subty Units td 00 SNAP IDCS 10 32 VDC VAC Digital Input pl 0 Pump_1_Status None UU 1 Not Delete Module icon Jot Modify Analog Input E eee 1 Not Used Collapse All Expand or collapse points on the module by clicking the or sign in the box Expand All ET BRL Points 4 Double click the point you want to configure O4AB User s Guide www klinkmann com CONFIGURING I O MODULES AND POINTS Add Analog Point Name A Description B Type y C SNAP AIV i 10 10 VDC YDE E Zero Scale 10 F Full Scale 10 Watchdog No C G Cancel Help 5 Complete the fields as follows A Name Enter aname for the point The name must start with a letter and may contain letters numbers and underscores Spaces are converted to underscores B Description Optional Enter a description of the point C Type Module
59. String Table Scratchpad Write Commands e Set I O Unit Scratch Pad Float Element e Set I O Unit Scratch Pad Float Table e Set I O Unit Scratch Pad Integer 32 Element Set I O Unit Scratch Pad Integer 32 Table e Set I O Unit Scratch Pad String Element e Set I O Unit Scratch Pad String Table IO4AB User s Guide www klinkmann com Creating Scratchpad Assemblies with EtherNet IP Configurator For this section you will need to use EtherNet IP Configurator to create assemblies to exchange www klinkmann com CHAPTER 6 CONNECTING PAC CONTROL AND ALLEN BRADLEY SYSTEMS between the PAC controller and the Allen Bradley PLC Creating an Assembly To Send Data to the PLC 1 Open EtherNet IP Configurator This immediately creates a new configuration Untitled EtherNet IP Configurator File Edit Tools Yiew Help Dea e Add new device EB Unnamed Device Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verify Discovered Devices Modules and Points Feature 7 a e Die Expand All Collapse All E sfin dialog box Modify Device Definition Device Name Unnamed Device Description Device Type SNAP PAC EB1 o y IP Address 0 0 0 0 Pott 2001 Temperature Fahrenheit Celsius Watchdog No Yes Cancel 3 Select the Device Type that matches your controller The example uses a SNAP PAC S2 but it could be any SNAP P
60. T A Revision 3 9 in Slot 1 of the Logix chassis You will need this information to complete the next set of dialogs 3 To add the 1756 ENBT A right click the I O Configuration folder and choose New Module from the popup menu to open the Select Module dialog box 4 Expand the Communications group select the 1756 ENBT A adapter and click OK E Select Module Select the Description Vendor 17 6 EN BT 1756 EN2T A 1756 10 100 Mbps Ethernet Bridge Twisted Pair Media Allen Bradley A 5 i a 1756 ENBT A 1756 10 100 Mbps Ethernet Bridge Twisted Pair Media Allen Bradley A ada pte r 1756 ENET A 1756 Ethernet Communication Interface Allen Bradley 1756 ENET B 1756 Ethernet Communication Interface Allen Bradley 1756 EWEB A 1756 10 100 Mbps Ethernet Bridge w Enhanced Web Serv Allen Bradley 1756 SYNCH A SynchLink Interface Allen Bradley Controllers Digital Drives Motion Other Specialty M Eind Add Favorite By Category 5 In the Select Major Revision dialog box that appears select the major revision of the 1756 ENBT A module which is 3 for the module used in this example Select Major Revision Select major revision for new 1756 ENBT A module being created Major Revision a Cancel Help 6 Click OK to open the New Module dialog box New Module Type 1756 ENBT amp 1756 10 100 Mbps Ethemet Bridge Twisted Pair Media Vendor Allen Bradley Parent Local r Address Host
61. Type and module are inserted for you You may be able to choose a different range or a scalable module from the drop down list D Units Scale Units and scaling for this module See Using Custom Scaling on page 21 E Scaling Default Scalable modules only To return the units zero scale value and full scale value to the defaults for the module click Default F Scaling Custom Scalable modules only To assign custom units and values to the module click Custom For example you could scale the voltage range of a 10 to 10 VDC module to be interpreted as engineering units of liters per second instead of volts See Using Custom Scaling on page 21 G Watchdog Outputs only To configure a value this point should be set to if the Watchdog timer on this device expires click Yes and enter the value In order for this to take effect make sure Watchdog is enabled at the device level To do this double click the device in the device tree to open the Modify Device Information dialog Select Yes for Watchdog choose a timeout and then click OK 6 When you have completed the fields click OK The new point is added IO4AB User s Guide www klinkmann com CHAPTER 3 GETTING STARTED Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Modules and Points Features Subty 5 00 SNAP IDCS 10 32 VDC VAC Digital Input w 0 Pump_1_Status None i P Delete Modif
62. a Class 4 Hexadecimal Assembly operation Attribute 3 Hex This is a set Attribute option Instance 101 For more information on the Class and Attributes see form 1770 the EtherNet IP for SNAP PAC Protocol Guide Click on the Communication tab and enter the same connection path as you did for the read message IO4AB User s Guide USING USER DATA TYPES UDTS In order to make this an unconnected message do not check the Connected box Unconnected messaging is the most efficient usage of TCP IP encapsulation sessions in the Logix architecture Message Configuration Write_Message Configuration Communication Tag Path ENBTA 2 10 129 45 46 ENBTA 2 10 129 45 46 cr l Connected O Enable Enable Waiting D Start Done Done Length 0 Error Code Extended Error Code Timed Out Error Path Error Text Cancel Apply Help 7 Click OK to close the dialog box and save the module configuration Using User Data Types UDTs If you are using version 16 or newer of RSLogix 5000 UDTs offer Explicit Messaging the ability to access assembly instance data with system meaningful attributes By giving an attribute to each object within the UDT it is much easier understand what an assembly instance is For example compare these two data statements PAC O Data 2 3 and PAC Turn_Conveyor_Off The second statement is easier to understand than the first one UDTs also permit mi
63. abled scanner such as an Allen Bradley PLC If you want a brain or controller with Factory Mutual approval choose the part number with FM at the end such as SNAP PAC EB1 FM NOTE SNAP PAC EB series brains are equipped with LEDs that report the EtherNet IP module status MS and network status NS For more information see form 1690 the SNAP PAC Brains User s Guide Use SNAP PAC S series or R series controllers to exchange scratch pad variable data with an EtherNet IP enabled scanner such as an Allen Bradley PLC Es IO4AB User s Guide www klinkmann com CHAPTER 2 INTRODUCTION TO IO4AB Architecture In EtherNet IP terminology a device may function as either an adapter or a scanner Our Opto 22 devices are implemented as adapters and as such are able to send and receive data only when requested to do so by a scanner The Opto 22 device or adapter is therefore a target of instructions and requests for information sent by a scanner which is usually a PLC but could be a PC running control software An adapter class device receives message requests from all other classes of products and it can exchange peer data using messages with any class of device However an adapter cannot store or originate the data communications parameters necessary to establish a connection Therefore it cannot originate real time I O data connections which is why it sends and receives O data only when it is requested to do so by a scanner A sca
64. adequately represented For example a REAL will be contained in a DINT bitwise and vice versa RSLogix contains some methods to convert the data types Using CPS with Simple Data Types For cases where the there is a minority data type in an assembly the ladder command the CPS command may be used to translate a REAL contained in a DINT to a REAL The same applies if a DINT was contained in a REAL It may be converted to a DINT by using the CPS command In this case the CPS command is a 4 byte transfer The instruction does not convert the data rather it moves the binary value of the variable to the destination Using CPS with a UDT If there are many mixed data types in the assembly instance CPS may be used to copy the entire module data array to or from a user defined data type UDT The UDT s definition must perfectly align to the assembly s data types GAAB User s Guide www klinkmann com USING CPS WITH A UDT IO4AB User s Guide www klinkmann com Index www klinkmann com A adapter class device 7 adding a device manually 78 PID loop 87 algorithms for PID loops 91 Allen Bradley how to configure video 3 platforms 107 analog inputs 109 outputs 111 analog point average filter weight 105 clamping 105 configuring 19 gain 105 maximum value 105 minimum value 105 offset 105 scaling 21 105 watchdog 104 105 assembly adding amp deleting 81 attribute list 82 input 24 moving 84 number of 130 ou
65. adley Generic Ethernet Module SoftLogix5800 EtherNet IP Ethernet Adapter Twisted Pair Media Allen Bradley Parker Hannif J Allen Bradley a Allen Bradley v ol Find Add Favorite Favorites 8 Scroll down to Generic Ethernet Module and then double click it to open the New Module dialog box New Module Type Vendor Parent Allen Bradley LocalENB Name r Address Host Name PAddress 192 1 C Host Name SNAP_IRIO Description Comm Format Data DINT ETHERNET MODULE Generic Ethernet Module r Connection Parameters Assembly i Instance Size jo f e owp Poa Po H ew Configuration 254 fo H evi statue Output Input 68 20 9 IV Open Module Properties Cancel Help 9 Enter or select the following information Name An appropriate name such Opto_IO Comm Format Choose the format most appropriate for the implicit message data usually Data DINT or Data REAL NOTE Once you select the Comm Format and then click OK it cannot be changed IP Address P address of the Opto 22 device 10 For the Input Assembly Instance and the Output Assembly Instance enter the assembly instance numbers you configured for the input and output assemblies in EtherNet IP IO4AB User s Guide www klinkmann com CHAPTER 4 SETTING UP IMPLICIT MESSAGING Configurator For example you might have used 100 for the in
66. ails Misc Details Velocity Algorithm 90 00 Input Setpoint Output Data p InputAxis gt Output Axis Time Axis gt Close In this example a gain setting of 30 revealed an offset error Plot 1 0 Details Misc Details ISA Algorithm 90 00 Input Setpoint Output Data gt InputAxis gt Output Axis Time Axis gt IO4AB User s Guide INSPECTING AND TUNING PID LOOPS The far left side of the plot shows the offset before an integral applied integral system derivative constant is required This setting eliminated he offset In many applications a minor fluctuat setpoint is acceptable and hese applications use gain and applications however the fluctuations at the setpoint indicate that the gain is too high too much gain makes a 9 Experiment with the integral constant in the Tune field type a number between 0 and 1 and click Apply Your PID may require larger numbers In this example an integral constant of 0 1 corrected the offset error constant of 0 1 was on around the only In some unstable or that a Plot 1 0 Details Misc Details IS Algorithm 55 1 10 0 56 Input joint 10 If derivative correction is needed experiment with the derivative constant in the Tune D field type 1 and click Apply Your PID loop may require a
67. apply to any SNAP PAC Ethernet based brain or controller used as a www klinkmann com remote I O unit for an Allen Bradley PLC TCP IP encapsulation connections 16 CIP Connections allowed per TCP IP connection 2 Implicit Multicast Connections 16 Assembly instances supported 16 Assembly members in all assembly instances 4096 IO4AB User s Guide EJ SPECIFICATIONS IO4AB User s Guide www klinkmann com 3 Getting Started This chapter describes lists the things you will need in order to implement O4AB It also describes how to install EtherNet IP Configurator and two procedures which you must do for both implicit and explicit messaging adding an Opto_22 device to the network and configuring I O modules and points In this Chapter What You Will N OC esesssssessssssssssssscsessssssesnssssee Installing EtherNet IP Configurator Adding an Opto 22 DeVice esses Configuring I O Modules and Points What You Will Need www klinkmann com e A SNAP PAC EB series or R series device loaded with firmware R8 3a or newer installed on a mounting rack with I O modules and connected to the network See the documentation included with the Opto 22 hardware NOTE Ifyou will be doing the exercises in 5 Setting Up Explicit Messaging on page 33 and want to run your example Logix project you will need a SNAP PAC Learning Center from Opto 22 either part number SNAP IO4ABLC or SNAP PACLC However
68. arts Subroutines Included E Charts amp Variables E Numeric Variables String Variables E Pointer Variables E Communication Handle E Numeric Tables String Tables Pointer Tables E amp 1 0 Unis Start the alarm monitorir dough chip control pre control and oven inspe charts gt G Shortcuts 100 v iha CEIC Chart Jb Next 4 Prev Wait until start flag is s true non zero Powerup PAC Control Ready Configure IO4AB User s Guide www klinkmann com CHAPTER 6 CONNECTING PAC CONTROL AND ALLEN BRADLEY SYSTEMS 2 Double click the I O Units folder to open the Configure I O Units dialog box I Configure I O Units Port Address 120 Point lt gt Close Help PID Loop 3 Click the Add button to open the Add I O Unit dialog box 4 Add or select the following information Name ioLocal Type Generic OptoMMP Device IP Address Select Local Loopback If you are using PAC Control Basic the completed dialog box should look like this tAdd 1 0 Unit Information Name ioLocal Description Type Type Generic OptoMMP Device vi Addressing IP Address 127 0 0 1 M Local loopback Ethemet Port 2001 Communication from control engine Enable communications from control engine Timeout and disable communications after 3 tiesof 1 second s each If you are us
69. at d Range of the output Integral after the output is determined to be Bene within bounds Gain Proportional tuning parameter PV1 PV2 PV from the previous scan and the Unitless May be negative scan before that Integral tuning parameter In units F Actual scan time time since previ Tunel of seconds Increasing magnitude ScanTime ous scan increases influence on output Equations Common to All Algorithms Err PV SP Span OutHi OutLo InHi InLo Output Output FeedForward TuneFF Velocity Type C Algorithm TermP PV PV1 TermI TuneI ScanTime Err TermD TuneD ScanTime PV 2 PV1 PV2 Aoutput Span Gain Atermp AtermI AtermD Velocity Type B Algorithm TermP Err Err i Term I TuneI ScanTime TermD TuneD ScanTime Aoutput Err PV 2 PV1 PV2 Non velocity Algorithms Span Gain Atermp AtTermI AtermD These equations were derived from the article A Comparison of PID Control Algorithms by John P Gerry in Control Engineering March 1987 These three equations are the same except for the tuning coe coef ficients Equations common to all but the velocity algorithm Integral Integral Err TermP Err TermI TuneI ScanTime Integral TermD TuneD ScanTime PV PV1 Ideal or ISA Algorithm Output Span Gain TermP TermI TermD Parallel Algorithm Ou
70. ath Error Text Done Length 0 I Timed Out Cancel Apply Help 13 Click OK to close the dialog box and save the module configuration IO4AB User s Guide ADDING THE MSG INSTRUCTION Adding the MSG Instruction An MSG instruction is used to trigger an explicit message It starts only when the input rung condition transitions from off to on which is different than most other ladder instructions Once the MSG is triggered the message occurs asynchronously You do not need to keep the rung condition true to the MSG instruction on This will cause more logic time to be consumed each time the ladder runs fe RSLogix 5000 Explicit_Messaging 1756 461 MainProgram MainRoutine Bf Fie Edt View Search Logk Communications Tools Window Help alsel S sael oA a aall I IQ gg Fed Par orn O dy J Hlal aljo 1D L vones K Ao A Aime Treast e saele A timer to control the rate the My read message for a MSG instruction Type CP Generic Message Contro MEMMEN C R A timer to control the rate the Flag to indicate a read is occurring E 1 0 Configuration gt Reed_h_Progress 1756 Backplane 1756 A10 fF 1754 1 At Frente Mace Y gt In the example a timer is used to control how often the MSG instruction is initiated The timer creates a regular interval to read or write to the remote I O If the PLC and I O are connected by very high bandwidth or reliable wide area networking you
71. ber from the lists Click OK 4 Back in the Configure I O Modules amp Points tab click the plus sign next to the new module to expand it Notice that the module icon is color coded to reflect the type of module being configured white for digital DC input red for digital DC output yellow for digital AC input and black for digital AC output Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Features Subty Units En Digital Input Module icon Expand or collapse points on the module by clicking Delete the or sign in the box Modify Points 01 Not Use J2 Not Use j j Expand All 13 Not Used Collapse All j j daul Not Used 5 Not Use O4AB User s Guide www klinkmann com CONFIGURING I O MODULES AND POINTS 5 Double click the point you want to configure to open the Add Digital Point dialog box Add Digital Point Name A Description B Type put C Module j Features D Watchdog f E Cancel Help 6 Complete the fields as follows A Name Entera name for the point The name must start with a letter and may contain letters numbers and underscores Spaces are converted to underscores B Description Optional Enter a description of the point Type Module Type and module are already filled in for you D Features To use a feature of the module choose it from the drop down list For information about
72. cations of the explicit messaging According to Rockwell documentation the default unconnected timeout for an explicit message is 30 seconds This value may be changed by modifying the UnconnectedTimeout member of the MESSAGE object This timeout should not be lower than five seconds on an optimally functioning network Once an explicit message is initiated it cannot be stopped Here are both rungs of the ladder in a single screen view IO4AB User s Guide www klinkmann com CONFIGURING A MSG TO WRITE AN ASSEMBLY INSTANCE fo RSLogix 5000 Explicit_Messaging 1756 161 MainProgram MainRoutine Ef Fie Edt View Search Loge Communications Tools Window Help O s ta S zaa o aala Gig ala bere Pathe crne gt l J Hlal 2 B LEE Acson Terme E K ve salele My read message for a MSG instruction Type CIP Generic N Move Message Contro MEMET C aon gt Source 0 ERD Dest Resd_Timer acc o A A timer to control the rate the Read_Message is Flag to indicate a toggled read is occurring Read_Timer ON nc abe eee 1 E 1756 Backplane 1756 A10 ffi 0 1756 161 Explicit Messagi 1 1756 EN2T A ENBTA ds Ethernet Flag to indicate a Flag to indicate a read is occurring read is occurring Configuring a MSG to Write an Assembly Instance A write assembly instance is also triggered by a timer the same as a read assembly instance You should not use the message s ER and DN attribute
73. ce Total Number of Encapsulation Connections Consume IO4AB User s Guide www klinkmann com APPENDIX C WORKSHEETS AND CALCULATIONS EtherNet IP Module Packet Rate Limits www klinkmann com Implicit Messaging Volume To determine the total volume of packets generated by the implicit messaging use one of the following equations You will need to know the requested packet interval RPI in milliseconds of each Generic Ethernet Module When using a Generic Ethernet Module with Status Packet Rate per Second for each Generic Ethernet Module 4000 RPI When using all other Generic Ethernet Modules Packet Rate per Second 2000 RPI The total implicit messaging packet rate is the sum of all of the packet rates of all the configured modules on the PLC Explicit Messaging Volume Explicit messaging is determined by the rate the PLC logic decides when to initiate a message sequence By determining the maximum number of MSG commands per second you can use this number to estimate the maximum packet rate as follows Packet Rate per Second 2 x maximum MSG commands per second The total packet rate generated by implicit and explicit messaging is the sum of the implicit message packet rate and the explicit message packet rate lO Packet Rate Implicit Packet Rate Explicit Packet Rate Typically a ControlLogix 1756 ENBT module has a maximum packet rate of 5 000 packets per second A CompactLogix PLC has a throughput of 4 00
74. communication failure occurs This function is crucial so the control system may properly react and notify when such a failure occurs When using implicit messaging the PLC automatically restores the communications with the I O units This automatic nature allows the ladder to function on stale values even when the communication fails The only physical indicator of this failure on the PLC is the blinking I O Status indicator on the front panel If the panel is out of reach or is not convenient to be inspected a failure will go unnoticed Detecting the I O Status Indicator State ControlLogix and CompactLogix provide a way to gain access to the value that controls the I O Status indicator on the front panel of the Logix controller The command is the GSV or Get System Value instruction The following GSV instruction options allow the retrieval of the I O Status indicator This front panel PLC indicator offers a global status of all module connections When implementing the GSV instruction use these attributes Class Name Module Instance Name leave blank Attribute Name LedStatus Destination An INT variable to receive the status Here is an RSLogix screen capture of a configured GSV instruction to read the module s LedStatus GSV Get System Value Class Name Module Instance Name Attribute Name LedStatus Dest 10_Led_Status Oe IO4AB User s Guide The return values are excerpted f
75. contained in a SNAP PAC Learning Center It is not required that you have a Learning Center to do the majority of the steps However if you want to obtain a SNAP PAC Learning Center in order to run your Logix project and exchange data with Opto 22 1 0 go the Opto 22 website www Opto22 com and search on the part number either SNAP IO4ABLC or SNAP PACLC In this Chapter Creating an Assembly INStance cssssssssesssessssessssssesssessssse 34 Configuring an EtherNet IP Module w csssssssssssesusssesesssensee 40 Creating a MESSAGE ORO cscssccssscelssasccreeecnaiasscssctcclacteccadlante 43 Adding the MSG INStructiOn esssssscsssssssessusssssssenusssesseseseesen 50 Configuring a MSG to Write an Assembly Instance 52 Using User Data Types UDI csccccssscscccccstoncenssseceestaenssecsssseste 54 PSM WAU A EE 55 IO4AB User s Guide www klinkmann com CREATING AN ASSEMBLY INSTANCE Creating an Assembly Instance This section provides an example of how to use EtherNet IP Configurator to configure modules and points on an Opto 22 device such that the data can be accessed by the Allen Bradley Logix architecture This section includes the following topics e Using EtherNet IP Configurator to Add and Configure a SNAP AICTD Module on page 34 e Configuring the SNAP AICTD Module Input Assembly on page 36 e Configuring the SNAP AOV27 Module Output Assembly on page 38 e Downloading the Configura
76. dd the float variable click again and select the following items in the Add Assembly Member dialog box Class ScratchpadREAL O4AB User s Guide www klinkmann com CREATING SCRATCHPAD ASSEMBLIES WITH ETHERNET IP CONFIGURATOR Start Element 0 Description Location for f32PACGallons_In_Tank Add Assembly Member Description Location for 32PACG allons_In_Tank Class Instance Information Attribute Discrete Input Point Discrete Output Point Start Element jo Analog Input Point Analog Output Point of Elements fi Load Cell Input Scratchpad DINT Scratchpad STRING Pulse And TPO Generator Ramp Controller PID Loop Controller Communication Watchdog Pad 10 Click OK Your completed assembly instance 100 should look similar to this 5 Untitled EtherNet IP Configurator DER File Edit Tools View Help Dealt Beals Add new device SNAP_PAC_S2 Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Discovered Devices Assembly Instance 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 Description Data from PAC Control to the B PLC Assembly Members DinT Bit Size Class Instance _ Attribute Description 0 32 Scratchpad DINT Element 0O Value Location for i32PACBuffer_Tank_Ready Add 0 32 Scratchpad DINT Element 1 Value Location for i32PACGallons_In_Tank 0 32 Scratchpad REAL Element
77. e ccxic bn twhdiadd daratids Goad ide baneehad dunes Monee chee pagans edad iad dae 7 Implicit and Explicit Messaging 0 0 cece cee cece teeter eter ttt tt etna 7 Choosing the Messaging Type aa 26 cessor garewlade Wie Aida Maw ne Ennn ddan eee eda 8 Using GIP ODECE iirc nc cctercunee dew paso ulhean mnie tad lek ent bnew te foto a E adele 8 Specificato NS 25 8 snecta dad enrian theme ahd E EE bed she AET depbata EE ded 9 Chapter 3 Getting Started sciisacuine ssw einwisviiecssescawewuiins EEr EENE 11 What YOU Will Needs in dernecepeemnekobianeins isena den ilhi Oummekind Deneeemicannedod bes 11 Installing EtherNet IP Configurator i s0ys5drarereserareresduearneseinnerandrebereeraneranes 12 Adding an Opto 22 Device dio sera ec ccc eect eee EEN EEEE EREA ENEE EA 12 Configuring I O Modules and Points airs asconcaisnisibark inn ik day vindccdarh eink hind Aiba ea ened 16 Chapter 4 Setting Up Implicit Messaging ccc cece eee e eee cece eeeees 23 Creating an IMput ASSEMPLY deendwrnninccnsdorraanivd ends vs Qaled wyanyawhaaineeeed eae ead wate eo 24 Creating an Output Assembly sirinin i heed ISR RAEI meade at 26 Configuring RSLogix for Implicit Messaging si ccsiccrsias commereiceardubiemneeebcenandores 28 Chapter 5 Setting Up Explicit Messaging sssssssssssosssssssssssseosess 33 Creating an Assembly Instance 2 ccc e cette eee enei sers ier icne nse 34 Using EtherNet IP Configurator to Add and Configure a SNAP AICTD
78. e default internally calculated Multihop Yes Service Use Read Assembly or Write Assembly Service Code Selected by the service selection above Class 4 Instance E IP Configurator Assembly Instance Number Attribute 3 Allen Bradley publishes the following explicit messaging limits for the SLC5 05 family of PLCS These are TCP connection limits 1747 L551 32 connections 1747 L552 48 connections 1747 L553 64 connections A connection is defined as each EEM instruction in the RSLogix 500 ladder In most cases this will be reading or writing an Assembly Instance configured in the EtherNet IP Configurator Typically each I O unit will have at least two connections Most applications have an input and an output Assembly Instance for each SNAP PAC I O unit This means that two connections are used for each SNAP PAC O unit The EEM instruction by default is a triggered instruction This means the EEM instruction starts when the input rung condition toggles from off to on If the rung condition remains on it will not re trigger the EEM message The continuous run bit should not be set in this instruction This will cause excessive amounts of needless I O communication Rather a timer should be used to regulate the rate of reads and writes to the I O IO4AB User s Guide www klinkmann com APPENDIX D CONNECTING WITH SLC5 OR MICROLOGIX The EEM has a limit of 124 16 bit words When working with the EtherNet IP
79. e of the EtherNet IP communication module in slot 1 of our chassis 2indicates this is an external message 000 000 000 000 is the IP address of your PAC remote I O unit Leave the Connected checkbox unchecked I04AB User s Guide www klinkmann com www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING Message Configuration Read_Message Configuration Communication Tag Path ENBTA 2 10 129 45 46 Browse ENBTA 2 10 129 45 46 Communication Method CIP DH Channel z Desimation LM jo C CIP with Source Link fo Destination Node fo J Octal Source ID I Connected Z Cache Connections e Enable Enable Waiting Start Done Eror Code Extended Error Code Error Path Error Text Done Length 0 Timed Out Cancel Apply Help For a CompactLogix controller 1769 32E with an embedded EtherNet IP Communication module the path changes slightly RSLogix automatically names the embedded EtherNet IP module LocalENB All other values of the path are the same Message Configuration Read_Message Configuration Communication Tag Path LocalENB 2 10 129 45 46 Browse Communication Method CP DH Gt zj Destination Link E z CIP with Source Link fo Destination Node fo J Octal I Connected IV Cache Cor e D Enable Enable Waiting Start Done Eror Code Extended Error Code Error P
80. ea so dcdoelibine ou bia PaE NST 90 Deleting a PID LOOP reires tea canavennadgs tenetis Gown okie dig Ureabemnadgan DEE daaeaea te 91 Alg CHOICES greges os urrara EKE EEE EE EEK EE REEE RAEES 91 Inspecting and Tuning PID Loops seess iesensice nenii nenir iiae ienii i een e n aaa 93 Inspecting a PID z ieina aA REA E EEN EEE EE 93 Determining System Lag 66 cece cette ete t eee t ene tt nen e teens 94 Tuninga PIDLOOD vressa E E AAT S 98 Using O POINEFGAUUIES eyii ninenin a edbaenagrnanas gednneanned a EEE EA EET 104 Digital Featur Serce nan er a n tay ion E SE E 104 Analg Feat res rese sepidippprigiripnkip kiberiti keie kin DADERS EEEE EEE 105 IO4AB User s Guide www klinkmann com Referencing I O Points on SNAP PAC RackS 0 0000 cece cece cece eee eee eee 106 Appendix A Supported Allen Bradley Platforms 0e000 107 Appendix Bo Using Counts 44 ceiincasitesgenegdniassy sd isan n tees 109 Using Counts with EtherNet IP 0 0 cece aurerra t terete 09 How 10 RettleVe COUNUS eiis cumscavecemades connads comme don eiea iona dae ede chee oes 09 Most Analog INPUTS eii e a deat ait aadbanet expe E EEE R EE 09 toad Cell IMPULS ise ceini iaei i A E ben EAA A E a E i 10 Analog OULDUTS shes shew prr oo ira o E e a EAEE 11 Linearizing the Pt100 and Pt1000 Probes from Resistance ccccceceee eee 111 Appendix C Worksheets and Calculations sssessssssssesoses 115 EtherNet IP TCP IP Requirem
81. ear Counters To route messages over wide area connections With explicit messaging you can access a remote Opto 22 device over the Internet e For sending or receiving data on a serial communication module port using the Serial Port object e If the quantity of data exchanged exceeds 1000 bytes of input data or 500 bytes of output data which are the limits in RSLogix 5000 software the excess must be exchanged via explicit messaging e For some OEM applications properly configured explicit messaging can require less programming and program management For instructions for using explicit messaging see 5 Setting Up Explicit Messaging on page 33 Using CIP Objects EtherNet IP accesses device data and functionality as a collection of object attributes and services As much as possible Opto 22 device data and functionality is exposed through standard CIP objects extended for additional non standard functions In some cases vendor specific objects are defined for functionality that is not within the scope of the standard objects The classes available for implicit messaging in the EtherNet IP Configurator are a subset of the CIP classes all of which are available through explicit messaging For information on the CIP classes and attributes see form 1770 the Ethernet IP for SNAP PAC Protocol Guide EJ o4 users Guide www klinkmann com CHAPTER 2 INTRODUCTION TO IO4AB Specifications The following specifications
82. ed all of the I O points to the new I O unit f Close all of the open dialog boxes in PAC Control 3 Inthe strategy tree right click the old I O unit and choose Delete to remove it 4 Inthe strategy tree right click the I O Units folder and choose Export from the pop up menu The Export I O Units to an Opto Tag Database dialog box appears 5 Navigate to the location where you want to place the export file Type the file name and click Save to create the export file IO4AB User s Guide www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING Importing the Configuration File into EtherNet IP 1 In the EtherNet IP Configurator main window click the Open button O or choose File gt Open to open the Open Tag Database dialog box Open Tag Database Look in O Configuration Files amp ey EE Opto_22_Config atg File name Opto_22_Config otg Files of ype Opto Tag Database Files otg X Cancel d 2 Locate the I O configuration otg file and click Open to import the file 3 Double click on the device name to open the Modify Device Definition dialog box 3 ioCookies_10_Configuration EtherNet IP Configurator DER Fie Edit Tools View Help Dae Be S cli Add new device Double click Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity t Modules and Points Type Feature Scali device name Discovered Devices p 00 SNAPIDCSD 2 5 28 V
83. ed lower value corresponds to Note that inputs typically have under range capability which means you O4AB User s Guide www klinkmann com CONFIGURING I O MODULES AND POINTS can specify a lower actual value that is less than the zero scale value Outputs do not have under range capability C Scaled Lower Value Enter the new scaled lower value This value can be any floating point value D Actual Upper Value Enter the actual real world upper value that the scaled upper value corresponds to For inputs you can specify an upper actual value greater than the full scale value E Scaled Upper Value Enter the new scaled upper value This value can be any floating point value greater than the scaled lower value This example uses 1000 which scales the output to 1000 liters per second when its actual reading is 5 VDC 3 Click OK The new custom scaled units appear in the Add Analog Point dialog box Notice the new units of liters per second and the new minimum scale Zero Scale and maximum scale Full Scale values of 2000 and 2000 The example connects a sensor with a Mame j Flowmeter_A range of 0 1000 liters per second but an output Description f only 0 5 volts to a SNAP AIV module with an output of 10 to 10 volts The figures shown in Type this dialog box reflect the total possible range of Module SNAP AIV 10 10 VDC Scalable v the module not the sensor Add Analog Point O
84. eela Add new device SMAP_PAC_IO Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Discovered Devices Assembly Instance 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 Description Assembly Members DINT Bit_ Size Class Instance Attribute 0 0 0 32 Analog Input Point aiOvenTemperature Value Add Delete Modify I1O4AB User s Guide CREATING AN ASSEMBLY INSTANCE Configuring the SNAP AOV27 Module Output Assembly 1 SNAP AOV 27 module in slot 2 ioCookies_I0_Configuration EtherNet IP Configurator File Edit Tools Yiew Help mi a IEA E Add new device SNAP_PAC_IO Discovered Devices Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verify Modules and Points td 00 SNAP IDCSD 2 5 28 VDC Digital Input a 01 SNAP ODCS5SSAC 5 60 VDC Source Digital Output 02 SNAP AOV 27 o gt a 1 aoConveyorS peedControl E 03 SNAP AICTD p 04 SNAP AIV 0 ao0venT emperatureControl Analog Output T 0 000 100 000 Analog Input Analog Input Click the Configure I O Modules amp Points tab and expand the configuration for the DoK Add Delete Expand All Collapse All 2 Click the Configure Assemblies tab select assembly instance 101 then click the Add button 3 On the Add Assembly Member dialog box make the following selecti
85. ensor Mod 00 8t 03 rapa c Module i z OffLatch Pulse And TPO Generator r B Ramp Controller Point 3 E PID Loop Controller Communication Watchdog 4 Under Attribute select an item in the list The attribute list allows you to define what information from each point you want to have passed in the implicit message In addition to value readings you can get other data such as the minimum or maximum value that the point has ever reached This is a great way to attain an alarm level without having to write logic in your RSLogix program that stores the high value 5 Click OK and follow any directions that appear for the class type For example the Fill Module dialog box appears for DiscretelnputPoint and Analog nputPoint Fill Module Would you like to fill the rest of the module with the same type of point Yes No How many points does this module have 4 6 Click OK 7 Continue to add elements as necessary NOTE Ifan assembly member or group of members adds up to less than 32 bits you will need to add padding 8 To adda pad click the Add button to open the Add Modify dialog box IO4AB User s Guide www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR 9 Under Class select Pad enter size of the pad for example 28 and click OK Add Assembly Member Description Instance Information Attribute Discrete Input Point Discrete Output Point Size In Bits 28 Analog Input Point Analog Output Poi
86. ents PLC Worksheet 00 cece cece erennere 6 EtherNet IP Multicast Requirements PLC Worksheet 00 cece eee e eee e eee e eee 117 SNAP PAC Connection Worksheets 0 0 0 0 cc cece cect eee eee teen beet eterna 8 EtherNet IP SNAP PAC Multicast Connection Worksheet 0 0000 cece cece ees 8 EtherNet IP SNAP PAC Encapsulation Connections 000 c cece cece cece cece es 8 EtherNet IP Module Packet Rate Limits 0 0 c cece ccc cece ete e terete 9 Imiplicit Messaging VO UME marire saa ound cana euive ga weaned aa be E A ees 9 Explicit Messaging VOIUME 20 e cette ttt nett rerne 19 Appendix D Connecting with SLC5 or MicroLogix 0e000 121 Connecting a PAC with a SLC5 05 PLC cece ee nee e teen enes 21 General Pa a eatencnacg osnaantsheaty ehaciseeasaconvwesid aalatvos exh ioe ant oA haba adnieta deans A ean 22 Target Device lab Sori rn bninn tS Mo ne A ES RS a aa 22 Connecting a PAC with a MicroLogix 1100 or 1400 PLC 2 cece eect eens 23 General TaD cartacnsess creaast tiie iadaive iran Senha EE theaters sd S S 24 IIIT OJ n ctr tvateun qaaunecnvatte EA EA E E A O et 25 Appendix E Detecting I O Communication Failures 127 Detecting the I O Status Indicator State usuusu cece tenes 127 Detecting Each Generic Ethernet Module s State 0 66 c cece ccc cece eens 128 Appendix F Generic Ethernet Module Options eeeeee
87. enu choose Assembly Configuration Report A text file opens showing the configuration report 9 To send the configuration to the device choose Tools gt Download Configuration to Opto 22 Device 10 In the Download Configuration dialog box select the device s IP address and then click Download FA Download Configuration to Opto 22 Device Name Description Address List Opte_22_IRIO 192 168 0 26 Clear Settings Close Timeout msec froooo This completes the setup of the Opto 22 remote O for implicit messaging In the next section you will configure communications with the Allen Bradley controller Configuring RSLogix for Implicit Messaging In this section you will use RSLogix 5000 to configure an Ethernet enabled Allen Bradley controller to communicate with the remote Opto 22 I O you configured in the previous sections The following instructions show screens from version 17 of RSLogix 5000 software using a CompactLogix 1769 L32E PLC 1 Open RSLogix 5000 IO4AB User s Guide www klinkmann com CHAPTER 4 SETTING UP IMPLICIT MESSAGING 2 Select File gt New 3 Onthe New Controller dialog box fill in the appropriate information for the Type Revision and Name fields New Controller Vendor Allen Bradley Type Type 1769 L32E CompactLogix332E Controller Revision Revision Cancel Help Name Name Description Safety Partner Slot Create In C RSLogix 5000 Projects Browse
88. erNet IP Multicast Requirements PLC Worksheet 117 SNAP PAC Connection Worksheets vss 118 EtherNet IP Module Packet Rate Limits 119 IO4AB User s Guide ETHERNET IP TCP IP REQUIREMENTS PLC WORKSHEET EtherNet IP TCP IP Requirements PLC Worksheet Each EtherNet IP application should be reviewed for its TCP IP connection requirements The following worksheet will assist in determining the number of connections required for each Allen Bradley PLC within the system TCP IP Connections for each PLC in the system Question Quantity RSLogix connection to the PLC using EtherNet IP enter 1 here How many RSLinx or 3 Party OPC DDE Servers How many PAC devices will be accessed via an unconnected MSG instruction How many other non Opto 22 EtherNet IP devices How many Logix to other EtherNet IP PLC TCP IP connections How many remote PLCs will connect to this PLC using a TCP IP connection How many Generic Ethernet Modules are defined Total number of TCP IP connections sum the Quantity column together Depending on the specific PLC or EtherNet IP module your application could exceed the TCP IP connection resources If you are using ControlLogix you can use additional EtherNet IP modules Typically ControlLogix modules may support 64 1756 ENBT or 128 1756 EN2T or 1756 EN2F TCP IP connections CompactLogix typically supports 32 connections For the specific TCP IP limitations of your PLC see Allen Bradley
89. from Resistance 111 Using Counts with EtherNet IP www klinkmann com While Opto 22 s SNAP PAC IO4AB implementation provides many configurable options for reading and writing I O including robust scaled units as an Allen Bradley user you can still use counts if you want to However using counts has various limitations due to the brain s capability to linearize the counts provided by the modules How to Retrieve Counts When creating assembly instances in the EtherNet IP Configurator there are two types of values for analog inputs and outputs rValue and Value Selecting rValue will report the value as a 32 bit float or a Logix REAL data type Value is the 16 bit integer value of counts as an input In the SNAP PAC architecture the notion of counts varies with the particular module being used Most Analog Inputs Most SNAP analog input modules provide a counts range of 0 to 24 999 counts for unipolar modules which read zero to a positive valued input and 24 999 to 24 999 counts for bipolar modules which read a negative to positive input range The analog input range determines the limits of the counts For example a SNAP AIV has either a 10 VDC or a 5 VDC input range This range is selectable in the EtherNet IP configuration When set to the 10 VDC input range 24 999 counts is 10 VDC and 24 999 counts is 10 VDC If the module is set to the 5 VDC 5 VDC is 24 999 counts and 5 VDC is 24 999 counts O4AB User s G
90. hapter 3 Getting Started How to install Ethernet IP Configurator add an Opto_22 device to the network and configure I O modules and points Chapter 4 Setting Up Implicit Messaging How to use EtherNet IP Configurator and RSLogix 5000 software to set up implicit messaging between an Allen Bradley controller and Opto 22 remote 1 0 Chapter 5 Setting Up Explicit Messaging How to use the EtherNet IP Configurator and RSLogix 5000 to implement explicit messaging Chapter 6 Connecting PAC Control and Allen Bradley Systems How to connect a SNAP PAC S controller with an Allen Bradley ControlLogix programmable logic controller PLC in order to exchange data Chapter 7 Using EtherNet IP Configurator Additional information about EtherNet IP Configurator not included previous chapters Appendix A Supported Allen Bradley Platforms Lists the Allen Bradley controllers that support EtherNet IP Appendix B Using Counts Describes using counts with EtherNet IP and linearizing the Pt100 and Pt1000 probes from resistance Appendix C Worksheets and Calculations Provides a variety of worksheets to help you determine your system s requirements Appendix D Connecting with SLC5 or MicroLogix Provides information for connecting to an SLC5 05 PLC or to a MicroLogix 1100 or 1400 PLC Appendix E Detecting I O Communication Failures Describes how ladder logic detects an I O communication failure Appendix F Generic Ethernet Module
91. i scove red 00 A0 3D 01 09 7C Ea devices Collapse All Status messages When installed and first turned on an Opto 22 device sends out a BootP broadcast requesting an IP address EtherNet IP Configurator discovers each Opto 22 device on your network broadcasting a BootP request and lists the devices in the device tree EtherNet IP Configurator Delta File Edit Tools View Help iD a i fr Add new device Eg Opto 22 I 0 A BOpto2z2 10B MAC addresses Discovered Devices 00 40 3D 00 C1 48 00 40 3D 01 51 D 00 40 3D 01 51 DF Discovered Devices Like all Opto 22 Ethernet based controllers and brains each of the discovered devices has a unique hardware Media Access Control MAC address which is displayed in the device list In order to add a discovered device to a configuration so that it can communicate on the network you must give the device a name a valid IP address and a subnet mask To add a discovered device 1 Make sure the device is connected to the network and turned on The device now broadcasts a BootP request for its configuration Your SNAP PAC EB1 is identified by its MAC address also written on a label attached to the side of the controller s housing The MAC addresses of Opto 22 devices begin with 00 a0 3d If no devices are listed under Discovered Devices turn your Opto 22 device off and then turn it on again 2 When the MAC address of the discovered device appears under Disc
92. ic Ethernet Module to the Logix PLC s EtherNet IP module using the following Settings Name PAC Comm Format Data DINT IP Address Use the address of your PAC Controller Connection Parameters Assembly Instance Size Input 100 3 Output 101 3 Configuration 254 0 The Input and Output Assembly Instance information is based on the Assembly Instances created in the EtherNet IP Configurator software EJ o4 users Guide www klinkmann com CHAPTER 6 CONNECTING PAC CONTROL AND ALLEN BRADLEY SYSTEMS Leave the Configuration Assembly Instance to 254 and the size to 0 because the configuration assembly is not used These settings tell RSLogix 5000 to ignore it New Module Type ETHERNET MODULE Generic Ethernet Module Vendor Allen Bradley Parent EIP Name PAC Connection Parameters Assembly Description Instance Size Input 100 3 aj 32 bit fier B ezi Output Comm Format Data DINT EONA Sr a0 p Bit Address Host Name PAddess 10 129 45 111 Status Input E Host Name Status Output IV Open Module Properties Cancel Help 2 Click OK to open the Module Properties dialog box 3 Click on the Connection tab and set the RPI to 500 milliseconds for demonstrating the data exchange E Module Properties EIP ETHERNET MODULE 1 1 General Connection Module Info Requested Packet Interval RPI 500 024 ms 1 0 3200 0 ms I I
93. ies Local 1 1756 ENBT A 3 9 E Tasks Motion Groups General Connection ASNetWors Module Info Port Configuration Port Diagnostics Backplane Add On Instructions Data Types a Requested Packet Interval RPI i4 ms Trends J 1 0 Configuration JT Inhibit Module 1756 Backplane 1756 410 fa 0 1756 L61 Explicit_Messaging I Major Fault On Controller If Connection Fails While in Run Mode Sim Bi 1756 ENBT A ENBTA ze Ethernet r Module Fault Description The 1756 ENBT A in slot 1 Status jome d 2 Module Fault Status Offline 9 Click OK again to close the Module Properties dialog box Creating a MESSAGE Object In RSLogix an explicit message is created using a MESSAGE tag 1 In RSLogix 5000 open the controller organizer right click Controller Tags and then choose New Tag 5 6 Controller test perenne E Controller sult Handler G Power Up Handler E Tasks Maintask o i MainProgram Unscheduled Programs amp J Motion Groups Ungrouped Axes 2 Inthe New Tag dialog box enter or select the following Name Read Message Description My read message for an MSG instruction Tag Type Base Data Type MESSAGE IO4AB User s Guide www klinkmann com CREATING A MESSAGE OBJECT 3 At the bottom of the dialog box select Open MESSAGE Configuration To select MESSAGE click the Data Type button Bl to open the Select Data Type dialog box
94. igital modules 1 In EtherNet IP Configurator click the Configure I O Modules amp Points tab Untitled EtherNet IP Configurator DER File Edit Tools View Help kE IEA Add new device Unnamed _Device Configure a amp Points Configure PID Loops Configure Assemblies Verify Discovered Devices 00 40 3D 01 75 B9 Modules and Points Add Ne LEoda Expand All Collapse All A 2 Double click the number that represents the digital module s position on the rack For help see Referencing O Points on SNAP PAC Racks on page 106 IO4AB User s Guide www klinkmann com CHAPTER 3 GETTING STARTED Add Module Digital Output Analog Input Analog Output SNAP IDC5 FAST 2 5 16 VDC SNAP IDC5 FAST A 18 32 VDC SNAP IDCSD 2 5 28 VDC SNAP IDC5MA 10 32 VDC VAC Man Auto Switch SNAP IDC5 SW Dry Contact Switch SNAP IDC5Q 4 24 VDC SNAP IDC5G 35 75 VAC AYDC SNAP IDCS5 HT 15 32 VDC SNAP IDC5 SW NC Dry Contact Switch SNAP IDCSFM 10 32 VDC SNAP IDCSDFM 2 5 28 YDC SNAP IDC 32 10 32 VDC SNAP IDC 16 10 32 VDC Generic Digital Input SNAP IACS 90 140 VDCAVAC SNAP IAC5A 180 280 VDCAVAC SNAP IAC5SMA 90 140 VDC VAC Man Auto Switch SNAP IACSFM 90 140 VDC VAC SNAP IACSAFM 180 280 VDC VAC SNAP IAC 16 90 140 VDCAVAC SNAP IAC A 16 180 280 VDC VAC 3 In the Add Module dialog box choose the module type and then the exact module part num
95. igure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verify Discovered Devices Modules and Points Type ype Featun lt p 00 SNAPADCSD 2 5 28 VDC Digital Input C a 01 SNAP ODC5SRC 5 60 VDC Source Digital Output E 02 SNAP ADV 27 Analog Output __ Delete E 03 SNAP AICTD Analog Input Modify ia 0 ai0venT emperature es ICTO a gh 04 SNAP AIV Analog Input Expandall Collapse All m m 3 Click the Configure Assemblies tab select assembly instance 100 and click the Add button to open the Add Assembly Member dialog box 4 Make the following selections Class Analog Input Point Instance Information Module 3 Point 0 Attribute rValue O4AB User s Guide www klinkmann com KLINKMANN www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING Add Assembly Member Description Instance Information Attribute Value Point Name Minimum alue Maximum alue aiOvenTemperature Mod 0 v LowScaledEngineeringUnits HighScaledEngineeringUnits Offset Gain AveragingFilterweight PID Loop Controller Communication Watchdog Pad 5 Click OK As shown below the assembly instance 100 has a single value the rValue of module 3 point 0 This corresponds to the Process Temperature input which is the first of two channels on the SNAP AICTD module ioCookies_10_Configuration EtherNet IP Configurator File Edit Tools Yiew Help Oeut
96. ill do their job even if communication to the controller is lost and the load on the controller is reduced www klinkmann com IO4AB User s Guide OPTO 22 PRODUCTS a A ERARI ME By connecting to Opto 22 devices as remote I O you can add the rich and sophisticated functionality of Opto 22 equipment to your EtherNet IP systems While other manufacturer s devices may report only states and counts our SNAP PAC System devices can provide access to the following functions e Power consumption e Thermocouple linearization e Power line monitoring e Temperature conversion e PID loop control up to 96 loops e Quadrature counting e Serial device control RS 232 485 e Input latching e Analog scaling e Pulse generation and measurement e Offset and gain e High speed counting up to 20 kHz e Analog ramping e Frequency and period measurement e Output clamping e Digital and analog totalizing e Filter weight e Watchdog timeout e Minimum and maximum values e Time proportional output e Engineering unit conversion e Loadcell Opto 22 Products You can use a variety of Ethernet capable devices from the SNAP PAC family of products in an EtherNet IP environment including the latest generation of SNAP PAC controllers and brains There are two basic approaches e Use SNAP PAC I O with a SNAP PAC EB series brain or R series controller as intelligent remote I O with an EtherNet IP en
97. ing PAC Control Professional leave the Secondary Address blank Once you have completed configuring a local I O unit for this SNAP PAC controller you are ready to modify the chart as described in the next section O4AB User s Guide www klinkmann com MODIFYING PAC CONTROL Modifying the Chart In this section you will learn how to modify a strategy to exchange data In the example you will create a new chart but you can modify an existing chart the same way The new chart will read and write shared values to and from the scratchpad registers in the local I O unit The PAC Controller has 32 bit integer 32 bit float and string registers 32 bit integers are synonymous to the DINT data type Opto 22 32 bit float data type is the same as the Logix REAL 1 Before adding some code to the PAC Control strategy create a couple of tables similar to the ones below to show which scratchpad registers will hold what particular values 32 bit Integer Scratchpads 0 i82PACBuffer_Tank_Ready 1 i82PACTank_Contents 2 dABFill_Tank 3 dABBottles_Filled 32 bit Float Scratchpads 0 f82PACGallons_In_Tank 1 rABGallons_Requested 2 Using either an OptoScript block or an action block create code to write PAC Control values to the scratchpad When the data is present on the scratchpad it is available to be read by other applications such as the Logix PLC Using an OptoScript block OptoScript Code
98. larger number In this example a derivative of 10 makes a noticeable difference in keeping the input near the setpoint Many PID systems are effectively contro ed with gain and integral constants only and no derivative constant In this example the gain and integra settings are maintaining the temperature at 0 06 from setpoint To demon strate the effect of the derivati the inp ve constant the resolution of ut axis was increased to show a 1 percent span At this resolution the plot reveals changes of 0 01 degrees F The left side of the plot shows the effect of gain at 30 integral at 0 1 and no deri vative constant The arrow shows when a derivative constant of 10 was ap shows plied The right side of the plot how the derivative constant is keeping the input closer to setpoint IO4AB User s Guide 3 4 TemperatureControl View PID Loop scanning Name Input Setpoint Qutput Plot 90 00 TemperatureControl Error None 90 02628 Gain Scan Rate 30 Tune Scan Counts 6128 66 71089 Tune D 1 0 Details Misc Details Velocity Algorithm Setpoint Output Input Axis gt Output Axis Time Axis www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR 11 Click Save to save your tuning parameters to the configuration Changes are lost unless you save the
99. larm Mod 01 Pt 00 DiscreteoutputPoint Freezer_Door_status Mod 01 Pt 0lvalue DiscreteoutputPoint Inside_Light Mod 01 Pt 02 value Dia ch St EOUERUEPO LTE outside_Light Mod 01 Pt 03 value Pa AnalogoutputPoint Fuel_Display Mod 02 Pt 00 value Pad IO4AB User s Guide CONFIGURING PID LOOPS The I O Modules and Points Configuration Report lists the modules and points configured for the selected device P l0ConfigReport txt Notepad File Edit Format View Help Device SNAP_PAC_R Type SNAP PAC R2 IP Address 10 129 45 115 00 Digital Input Cwhite SNAP IDC5D 00 Emer gency_switch 01 Digital output Red SNAP ODC5SRC 00 Alarm Freezer_Door_st atus Inside_Light outside_Light Analog Output Green SNAP AOV 27 00 Point2_O_SNAP_PAC_R 01 Point2_1_sNAP_PAC_R Analog Input Blue SNAP AICTD 00 Point3_O_SNAP_PAC_R Point3_1_SNAP_PAC_R Analog Input Blue SNAP ALV Point4_O_SNAP_PAC_R Point4_1_SNAP_PAC_R To view a configuration report 1 In the device tree select an Opto 22 device EtherNet IP Configurator Opt File Edit Tools Yiew Help D amp Add new device SNAP _PACH SNAP _PAC_S1 Discovered Devices 00 40 3D 00 9D F8 Select an Opto 22 device 2 From the Tools menu choose either Assembly Configuration Report or I O Modules and Points Configuration Report A text file opens showing the configuration report Configuring PID Loops PID loops or simply PIDs
100. ld like to use counts strictly for the SNAP AIRTD and thermistors for the SNAP AIR40K modules tables in slope intercept format are provided below The Pt100 probe table may also be used for Pt1000 applications For Pt1000 applications divide the resistance by 10 The SNAP AIRTD should be used for the Pt100 and the SNAP AIR40K should be used for the Pt1000 When using the Pt1000 use the 0 5000 Ohm input range with the SNAP AIR40K To use these tables start by searching from the lowest resistance value of the table Compare the resistance value until you reach the last value before the table s resistance exceeds your measured value Take the slope and intercept and compute this equation using floating point variables temperature slope from table x measured resistance intercept from table To convert from Celsius to Fahrenheit use this equation Temperature F Temperature C x 1 8 32 For better accuracy using probes with the SNAP AIR40K module short the leads at the probe s terminal blocks and record the resistance measurement This is the resistance offset due to the instrumentation wiring Subtract this value from the resistance measurement before using the linearization table IO4AB User s Guide LINEARIZING THE PT100 AND PT1000 PROBES FROM RESISTANCE Table 1 100 Ohm Nickel RTD 60 to 250 C Table Range 68 0 to 291 0 Ohms 68 0
101. log inputs as type value 32 bit integer in the E IP configurator and Boolean values Use the data type in the communication format that is closest to the data contained in your assembly instances Determining the Number of Assembly Instances An RSLogix ETHERNET MODULE Generic Ethernet Module may have at least one and up to three assemblies of data The three assembly types are Input Output and Status Input An Input assembly is required for all configurations Most Module configurations will have two assemblies Input and Output If additional Input data is required than Input assembly s 125 32 bit DINT limit you may use the Status Input for additional data The status input will permit up to 124 32 bit words in DINT format only Input 125 Input data from the remote I O unit Output 124 Output data to the remote I O unit Status Typically two less than the size Status input data from the remote I O of the Output Assembly Size unit Data is always in DINT format IO4AB User s Guide www klinkmann com APPENDIX F GENERIC ETHERNET MODULE OPTIONS Opto 22 s Mixed Architecture and the A B Comm Format Opto 22 s architecture is based around a mixed analog and digital architecture so that assembly instances usually have a combination of digital and analog data Since the Comm format will force the entire assembly to be represented as a single data type this means that some of the values are not
102. ly ae and graphically Output 30 Tune D 0 Plot 1 0 Details Misc Details Velocity Algorithm 150 Input Setpoint Output Reset Scale Tracking Center on Input Adjust resolution of the Center on Setpoint Input Axis by clicking the Input Axis button 8 Increase the resolution of the Input Axis by clicking the Input Axis menu and choosing a span setting of 1 or 5 percent 9 Center the Input Axis if necessary by clicking the red line at its left end and dragging it up or down until the plot is visible 10 Under the Time Axis menu choose Reset Scale Tracking This is a precautionary step as changing settings on the plot can fix the plot at a certain point in time Resetting the time axis ensures that you are viewing the real time values 11 In the Output field type the other of your two output settings and click Apply A 20 percent increase is a moderate detectable change for most systems Your system may require a larger or a smaller change to stay within safety constraints IO4AB User s Guide www klinkmann com INSPECTING AND TUNING PID LOOPS 12 Wait for a discernible change in the Input axis Plot 1 0 Details Misc Details Velocity Algorithm The Input axis indicated by the upper white arrow added to this picture begins to respond to the change in output lower white arrow 13 Increase the resolution of the Time Axis by clicking the Time Axis b
103. m You may wish to save your tuning parameters when you see any improvement in performance even if they are not final EtherNet IP Configurator The following values will be permanently saved to the device Gain 5 000000 Tune I 10 000000 Tune D 200 000000 Scan rate 3 000000 Feed forward 0 000000 Feed forward gain 0 000000 Output min change 0 000000 Output max change 0 000000 Output when input is under range 0 000000 Output when input is over range 0 000000 Do you want to continue 12 Click Yes Values are saved to the EtherNet IP configuration file Remember to download the configuration to the Opto 22 device see Downloading a Configuration on page 78 IO4AB User s Guide www klinkmann com USING I O POINT FEATURES Using I O Point Features The I O point features available on remote I O depends on the combined capabilities of the device brain or on the rack controller See the device s data sheet for supported features The following tables define the digital and analog features that are supported For more information see form 1704 the PAC Manager User s Guide See also form 1798 the SNAP IO4AB Learning Center User s Guide To see a video demonstration of using I O point features click here or go to the Learn tab on the Opto 22 website www opto22 com and click SNAP I O with Allen Bradley Systems Digital Features input A counter keeps track of the number of times a digital
104. module 14 Select Communications gt Download to download the RSLogix program to the controller and then click Download in the next two dialog boxes that appear Once the download is complete the program will run automatically on the controller IO4AB User s Guide www klinkmann com 5 Setting Up Explicit Messaging This chapter describes how to use the EtherNet IP Configurator and RSLogix 5000 to implement explicit messaging over EtherNet IP in order to access data from SNAP PAC I O and SNAP PAC controllers If you want to set up implicit messaging see 4 Setting Up Implicit Messaging on page 23 For help choosing a messaging type see Choosing the Messaging Type on page 8 Opto 22 s implementation of Allen Bradley s explicit messaging is an EtherNet IP version of an earlier messaging protocol CIP Messaging over ControlNet Similar in some ways to explicit messaging CIP messaging also used the MSG instruction Along with implicit messaging explicit messaging is supported on controller platforms such the ControlLogix and CompactLogix It is also supported on other Allen Bradley platforms that do not support implicit messaging For information on the objects available using explicit messaging in an IO4AB system see form 1770 the Ethernet IP for SNAP PAC Protocol Guide For a list of the basic things you will need see What You Will Need on page 11 Note that the examples in this chapter are based on the I O
105. ncrease in a pump s output to prevent pipe breakage The default for both minimum and maximum is zero which disables the feature Output Options Choose how the PID should respond if the input goes out of range To have RSLogix logic or an operator respond check Switch to manual mode To force the output to a specific value check that option and type the output values NOTE If both boxes are checked forced output and manual mode the output will be forced and the PID put into manual mode but if the PID is already in manual mode the output will not be forced If neither box is checked and the PID input goes out of range as defined by E High Low Range then the output will freeze but only while the input is out of range K Algorithm Choose algorithm Velocity ISA Parallel Interacting For details on algorithms L see Algorithm Choices on page 91 Mode Choose the Mode you want the PID to be initialized to The main difference between Automatic and Manual mode is that in Manual mode the PID loop stops its mathematical calculation In both modes the PID s output value is still copied to the analog output Auto mode The PID makes calculations based on the difference between the input and the setpoint resulting in changes to the output which causes the input to move toward the setpoint Manual mode The PID stops making changes to the output but continues to write the PID output to the analog point or configured
106. nhibit Module I Major Fault On Controller If Connection Fails While in Run Mode Module Fault Status Offline Cancel Apply Help 4 You re almost done Now you just need to add a few CPS commands to copy the Generic Ethernet Module s data to and from local variables of the ladder O4AB User s Guide El www klinkmann com MODIFYING THE RSLOGIX 5000 LADDER Here s a screen shot of the complete CPS instructions in the ladder 5 RSLogix 5000 Bottling 1756 L61 MainProgram MainRoutine DER Ef File Edt View Search Logic Communications Tools Window Help eoe a aaa E lel ala Offline 1 E RuN fa Pan ae ETHIP 110 192 5476 Backplare 0 18 No Forces b E ok Te ae i BAT m CC 4 alele o Le p Redundancy 5 m 4 Bh Favorites Add on A Alarms Timer Counter E Tasks 5i f MainTask a amp MainProgram Move Values from the PAC Module Array to PLC Variables 9 Program Tags From the PAC A MainRoutine PAC Control Variable Controller Gi Unscheduled Programs CPS CPS CPS E Motion Groups Synchronous Copy File __ Synchronous Copy File 4 Synchronous Copy File f Ungrouped Axes Source PAC I Data 0 Source PAC I Data 1 Source PAC Data 2 a 5 Dest i32PACBuffer_T ank easy Dest i32PACTank_Contents Dest 32PACGallons_In_Tank Add On Instructions Lenath Length 1 Length 1 amp Data Types ie User Defined Gg Strings i Move Values from PLC Variables to the PAC 0 Array oe Add On Defined Gi Predefined CPS cPS crs
107. nner is capable of originating I O data connection requests with adapter class products as well as with other scanner class products Scanner class devices may also originate or be the targets of explicit connection requests to and from other classes of products and they can send or receive messages to or from all other classes of products Implicit and Explicit Messaging www klinkmann com As adapters SNAP PAC EB brains and SNAP PAC R and SNAP PAC S controllers are able to exchange messages with scanners using both explicit and implicit messaging Explicit messages are used for request response transactions between two nodes The scanner sends a request and the adapter returns a response Using TCP IP these messages can reach any network accessible object attributes and services within a device Once the modules and points are configured on an Opto 22 device no additional configuration is required on an Opto 22 device All programming is done in RSLogix Implicit messages transfer data at regular intervals established by the scanner No request is required the request is implied Implicit messaging connections often are set up as one to many relationships and use UDP IP to multicast application specific I O data at regular intervals When properly configured the data is always available to be scanned by the controller In addition to configuring the modules and points on an Opto 22 device you must also create input and output assemblies An
108. nsider using a timer as a time period check to evaluate the status of the PLC s I O indicator If this indicator should indicate a failure then a routine should be called to test the status of the I O units Calling a routine after knowing there is a failure will reduce the number of GSV and conditional tests the ladder will have to perform For more information on the expected values reported by this instruction see Allen Bradley form 1756 rm003 IO4AB User s Guide www klinkmann com F Generic Ethernet Module Options When creating a GENERIC ETHERNET module you may select the Comm Format This field controls the assumed type and the amount of data that may be transacted on this module The communications format selection is dependent on the data type and the amount of data that your E IP configuration will read or write New Module Type ETHERNET MODULE Generic Ethernet Module Vendor Allen Bradley Parent ENBTA Connection Parameters Assembly Description Instance Size Input 125 a 32 bit Output 124 H 32bit Name C Format Data il omm Format Data Configuration 0 8 bit Address HAPEE ISi Data DINT With Stat IP Addre Data INT ith Status Data INT With Status C Host Name V Open Module Properties Once this dialog is completed the Comm Format cannot be changed so make this data selection decision carefully Data Selection for the Communication Format
109. nt Load Cell Input Scratchpad DINT Scratchpad REAL Scratchpad STRING Pulse And TPO Generator Ramp Controller PID Loop Controller Communication Watchdo The pad appears as the last member of element 0 to complete the 32 bit word 10 To save the configuration choose File gt Save As browse to an appropriate directory name the file for example Opto_IO and then click Save 11 Click the Verify tab and then click the Download button Or you can choose Tools gt Download Configuration to Opto 22 Device 12 In the Download Configuration dialog box select the device s IP address and then click Download NOTE Make sure that the SNAP I O is properly configured with a SNAP PAC EB series or R series brain loaded with firmware R8 3a or newer and that the proper I O modules are installed Otherwise errors will occur The configuration is permanently stored in the device 2 Download Configuration to Opto 22 Device p Address List Opto_22_IRIO 192 168 0 26 Gey Clear Settings Close Timeout msec fioo IO4AB User s Guide www klinkmann com MOVING ASSEMBLY MEMBERS 13 When the configuration has downloaded successfully click Close Download Configuration to Opto 22 Device Address List Opto_22_IRIO 192 168 0 26 Clear Settings Close I Timeout msec 10000 lt lt Details Configuring Device 192 168 0 260 9 points successfully configured 1 of 1 PID Loops successfully configured
110. nverted to underscores Device Type Choose the part number of the Opto 22 device from the drop down list IP Address Enter the IP address of the device NOTE Changing the IP address in this dialog box does not change the IP address on the device Ifyou want to change the IP address on the device see Changing a Device IP Address on page 80 Port The default Ethernet port number is 2001 for communication with the Opto 22 device If you have changed this port for security purposes also change it here See the device s user guide for details Temperature Choose whether temperatures will be handled in Fahrenheit or Celsius Watchdog Select whether you want a Watchdog on the unit The default is No disabled If you select Yes a new field appears enter the Watchdog timeout value in seconds The default timeout is 0 5 seconds NOTE If you want to enable Watchdog on a point make sure to enable it here at the device level as well Click OK The new device appears in the device tree System IV EtherNet IP Config File Edit Tools View Help D ew E Add new device Unnamed_Device New device Discovered Devices I1O04AB User s Guide MODIFYING A DEVICE Modifying a Device Do the following steps to change a device s information 1 Inthe device tree double click the device to open the Modify Device Information dialog box 2 See Adding an Opto 22 Device on page 12 for tips on how
111. olated Analog Input Modules Data Sheet 1182 for isolated analog input modules Wiring specifications and installation information SNAP Serial Communication Modules Data Sheet 1184 for serial modules Using EtherNet IP commands with remote Opto 22 SNAP PAC I O with an Allen Bradley Ethernev IP for SNAP PAC Protocol Guide 1770 Logix controller Latest release installation and system require EtherNet IP Configurator Release Notes See ments information for EtherNet IP Configurator www opto22 com for the latest form number All documents are available on our website www opto22 com The easiest way to find a document is to search on its form number Additional resources are also available on the Opto 22 Web site such as a demonstration video that shows how easy it is to configure and program an Allen Bradley controller to talk to SNAP PAC IO If you are viewing this document online and have an internet connection click the image Otherwise go to the Learn tab on the Opto 22 website www opto22 com and click SNAP I O with Allen Bradley Systems Using SNAP o with Allen Bradley Controllers Part Establishing Communications Additional Resources for EtherNet IP For an overview of CIP and EtherNet IP technology see http www odva org Portals 0 Library Publications_Numbered PUB00138R2_CIP_Adv_Tech_Series_FtherNetIPpdf For information on the network infrastructure for EtherNet IP see http
112. on ick and drag on the scale to move the line Oc me axis Adjust resolution 000 oO 09 44 00 0 09 44 30 0 using the Time Axis button Data p InputAxis gt Output xis Time Axis gt ick and drag left or right to see other times Cose Dew Q 3 Viewor change PID parameters as necessary Click the other tabs to see additional data To tune the PID see page 98 4 To save copy or print the current plot click the Data button and choose from the popup menu 5 To save changes to any of the PID configuration parameters click Save Tuning IO4AB User s Guide www klinkmann com INSPECTING AND TUNING PID LOOPS Determining System Lag You can directly control the PID output to determine system lag which is essential to setting the PID scan rate Also see Opto 22 form 1641 OptoTutorial SNAP PAC PID available for download from our website at www opto22 com 1 4 Determine two significantly different output settings that are within the capabilities of your system With a configured PID downloaded and running on the brain click the Configure PID Loops tab Highlight the PID and then click the Tuning button 3 4 pid0 View PID Loop scanning Name pid0 Error N one Input 79 2753 Gain 15 Scan Aate 3 sec Setpoint 79 Tunel 10 05 Scan Counts 112783 Dutput 2 252521 Tune D 10 02 Plot 1 0 Details Misc Details Veloci
113. ons Class Analog Output Point Attribute rValue Add Assembly Member Description Instance Information Module 2 Point 0 pe o Instance Information Discrete Input Point Discrete Output Point Point Name Analog Input Point Load Cell Input Scratchpad DINT Scratchpad REAL Scratchpad STRING A Module 2 z G 0 X Pulse nd TPO Generator Ramp Controller PID Loop Controller Communication Watchdog Pad Point 4 Click OK Attribute Value CommwatchdogE nable Commi atchdog alue LowerScaledEngineeringUnits UpperScaledEngineeringUnits LowClamp HighClamp 5 On the Fill Module dialog box select No and then click OK This rValue will be a type REAL just like the analog input IO4AB User s Guide www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING ioCookies_l0_Configuration EtherNet IP Configurator DER File Edit Tools View Help DSH teea Add new device SNAP_PAC_IO Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Discovered Devices Assembly Instance 101 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 Description Assembly Members Attribute 32 Analog Output P aoOvenTemperaturel Value Add Delete Modify Downloading the Configuration to the SNAP PAC I O Unit 1 Choose Tools gt Download Configuration to Opto 22 Device to open the Download Configu
114. or example a valve could automat ically close to avoid completely emptying a tank IO4AB User s Guide www klinkmann com www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR Totalizers Digital totalizers track the total time a specific input point has been on or off For example you could track how long a pump fan or motor has been on Digital totalizers are useful for peri odic maintenance Before using a totalizer you must configure the point with this feature The availability of totalizers depends on the brain see the brain s data sheet for more information Analog Features Average filter weight analog inputs A filter weight smooths analog input signals that are erratic or change sud denly Clamping analog output Clamping limits values that can be sent to analog output points so they do not go above or below a specific value For example if you are using a 0 10 VDC output module but the device attached to one of its points can only handle a maximum of 5 VDC you can set an upper clamp of 5 VDC for that point The values for upper and lower clamp are set in engineering units Minimum and maximum values analog input Minimum and maximum values are sometimes called peaks and valleys You can read these values at any time for example to record minimum and maximum tem peratures You can also reset min max values For example if you want to record the maxi mum tempe
115. or the implicit message packet that includes the information for the point or points you are interested in Once you have created the assemblies you will use RSLogix 5000 to complete the setup For a list of the basic things you will need see What You Will Need on page 11 In this Chapter Creating an Input Assembly s sssssssss1 s1191111111211 24 Creating an Output ASSEMDIY sess 26 Configuring RSLogix for Implicit Messaging 28 IO4AB User s Guide www klinkmann com CREATING AN INPUT ASSEMBLY Creating an Input Assembly 1 In EtherNet IP Configurator click the Configure Assemblies tab and then select an assembly instance number for example assembly instance 100 Each assembly instance created requires a unique number Unused assembly numbers have a white background Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Assembly Instance 100 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 Rae A Assembly Members Instance Information Attribute Discrete Output Point C Point Name FeatureSelect Analog Input Point FeatureE nable Analog Output Point Feature alue Load Cell Input ClearFeatureValue Scratchpad DINT Scratchpad REAL Scratchpad STRING Module 0 E Pulse And TPO Generator 3 Ramp Controller Point jo zl PID Loop Controller Communication Watchdog Pad 3 Select a class type such Discretelnput
116. overed Devices double click the MAC address O4AB User s Guide www klinkmann com ADDING AN OPTO 22 DEVICE Untitled EtherNet IP Configu File Edit Tools View Help D aw ed ela Add new device Unnamed_Device Discovered Devices CAUTION EtherNet IP Configurator lists ALL Opto 22 devices sending BootP or DHCP broadcasts Assign IP addresses only to the ones you know are yours The Assign IP Address dialog box appears Assign IP Address to 00 A0 3D 00 C X IP Address Subnet Mask Qo gt Gateway Address 0 P DNS Address 0 g Cancel 3 Enter the IP Address and the Subnet Mask for the device If it will be talking to a device on another subnet enter the Gateway router address If it will talk only on the local subnet leave the gateway address all zeros 0 0 0 0 Leave the DNS address at 0 0 0 0 field blank WARNING Each device on your network including computers routers controllers brains and so on must have a unique IP address Failure to assign unique IP addresses may cause catastrophic network or hardware failures If you don t know which IP addresses are safe to use check with your system administrator 4 When the IP address subnet mask and other fields are correct click OK O4AB User s Guide www klinkmann com CHAPTER 3 GETTING STARTED The Name This Device dialog box appears with the Device Type IP Address and Port filled in a
117. ow Help elslel 2 6 ele ol J al ele ala f omne a a No Forces j NoEdts amp a Hiba ael oo gt Redundancy i 4 gt iN Favorites Add On Safety Alarms Bit Timerici a Controller Explicit_Messaging Tasks i Motion Groups i Add On Instructions Data Types E Trends 2 6 1 0 Configuration amp 1756 Backplane 1756 410 f 0 1756 L61 Explicit_Messaging gt a a n y For a CompactLogix 1769 L32E PLC when you create a new project in RSLogix an Ethernet interface named LocalENB is automatically created at slot 1 ft RSLogix 5000 Explicit_Messaging 1769 L32E File Edit View Search Logic Communications Tools Window Help elsia a sae ol gt lal fe vier alal Oline D ERUN o a gt E ok No Forces E kes Afr a e al ole gt Evo ii 4 gt J Favorites Add On Safety Alarms Bit Timericr Controller Explicit_Messaging m Tasks E Motion Groups i Add On Instructions Data Types E Trends 1 0 Configuration B fs ii Backplane CompactLogix System fa 1769 L32E Explicit Messaging 1769 L32E Ethernet Port LocalENB aa Ethernet CompactBus Local abey Ve v Create Examine On instruction IOAAB User s Guide www klinkmann com www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING In this example there is a 1756 ENB
118. pit Size Class Instance 2 Select a class type such DiscreteOutputPoint The classes available for implicit messaging in the EtherNet IP Configurator are a subset of the CIP classes all of which are available through explicit messaging For information on the CIP classes and attributes see form 1770 the Ethernet IP for SNAP PAC Protocol Guide IO4AB User s Guide www klinkmann com CHAPTER 4 SETTING UP IMPLICIT MESSAGING 3 Under Instance Information select a point that you have configured Otherwise you can assign an assembly member to a specific module and point 4 Under Attribute select an item in the list Add Assembly Member Description Class Instance Information Attribute Discrete Input Point Point Name Commi watchdogE nable Analog Input Point Commiwatchdogy alue Analog Output Point Dutside_Light Mod 01 Pt 0 7 Load Cell Input F TE 1 Scratchpad DINT Outside Light Mod apa 03 Scratchpad REAL Jr Scratchpad STRING r Module l X Pulse And TPO Generator g Ramp Controller Point PID Loop Controller Communication Watchdog Pad The attribute list allows you to define what information from each point you want to have passed in the implicit message For example in addition to writing a value to a point you might want to change the watchdog value or set high or low clamps on an analog point NOTE Ifan assembly member or group of members adds up to less than 32 bits yo
119. put assembly and 101 for the output assembly For the size of the input and output assemblies enter the number of 32 bit words defined for each For example if you entered one 32 bit word for the input assembly in EtherNet IP Configurator as shown here you would enter 1 as the size of the input assembly on the New Module dialog box in RSLogix 5000 Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verify Assembly Instance 100 EER I 102 103 1047 105 106 107 108 1097 110 111 1121113111411 Description A Assembly Members DINT Bit_ Size Class Instance Attribute 0 0 a 1 Discrete Input Point Flowmeter Mod 00 Pt 00 Value 1 0 1 31 Pad The following example assembly from EtherNet IP Configurator has three 32 bit words so you would enter a size of 3 in RSLogix 5000 Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Assembly Instance 100 RED 102 103 104 105 106 107 108 109 110 111 112 113 114 115 Description Assembly Members pint pit Size Class Instance tribute 0 0 0 1 DiscretelnputPoint Photo_Sensor Mod 00 Pt Value 1 0 1 31 Pad 2 1 0 32 AnaloglnputPoint Store_Temperature Mod 0 Value 3 2 0 32 DiscretelnputPoint Emergency_Switch Mod 0 FeatureValue EtherNet IP Configurator indicates the size of the assembly instance at the bottom of the screen as shown here IO4AB U
120. r Communication Watchdog Pad FeatureSelect FeatureEnable FeatureValue ClearFeatureValue www klinkmann com CHAPTER 6 CONNECTING PAC CONTROL AND ALLEN BRADLEY SYSTEMS 7 Select the following items Class ScratchpadDINT Notice that the available fields change Instance Information Start Element 0 of Elements 1 Attribute Value Description Add a comment such as Location for i32PACBuffer_Tank Ready to indicate which value this scratchpad location will transfer The example is the scratchpad element for the PAC Control variable i32PACBuffer_Tank Ready Add Assembly Member Description Location for i32PACBuffer_T ank_Ready Instance Information Attribute Discrete Input Point Discrete Output Point Start Element jo Analog Input Point Analog Output Point t of Elements fi Scratchpad REAL Scratchpad STRING Pulse And TPO Generator Ramp Controller PID Loop Controller Communication Watchdog Pad 8 In the same manner add ScratchpadDINT element 2 for i32PACGallons_In_Tank Add Assembly Member Description Location for i32PACG allons_In_Tank Class Instance Information Attribute Discrete Input Point Discrete Output Point Start Element jo Analog Input Point Analog Output Point 5 Load Cell Input of Elements fi Scratchpad REAL Scratchpad STRING Pulse And TPO Generator Ramp Controller PID Loop Controller Communication Watchdog Pad 9 To a
121. r Exchanging Data Online More Ideas for Accessing Data IO4AB User s Guide www klinkmann com EXCHANGING VALUES Exchanging Values By doing the example exercises in this chapter you will learn how to exchange several values between an Opto 22 automation system and an Allen Bradley PLC Each system has a few variables that need to be exchanged between each other It is assumed that the control systems already exist and the parameter sharing simply marries the two systems together The PAC System has the following values that the Allen Bradley PLC needs 32 bit integer i32PACBuffer_Tank_Ready 32 bit integer i82PACTank_Contents 32 bit float f82PACGallons_In_Tank The A B PLC has several values that the Opto 22 PAC System needs they are DINT dABFill_ Tank DINT dABBottles_Filled REAL rABGallons_Requested Modifying PAC Control Your PAC Control strategy needs to modified slightly to allow data to be read and written to and from the Allen Bradley PLC For small data sharing applications the modifications will take only a few minutes to do Adding a Generic Opto MMP Device The first thing to do is add an I O unit to your PAC Control strategy 1 Open your strategy in PAC Control IPAC Control Basic Powerup RE File Edit Configure Chart Subroutine Compile Mode Tools View Window Help Y Pa iA a x A fh x ae Cookies Cookies S ep Control Engines This chart starts the program and all other ch
122. ration dialog box 2 If this is the first time you are downloading an EtherNet IP configuration click the Clear Settings button to erase all prior configurations reset the PAC R to its factory default settings and restart the I O unit 3 Click the Download button to download the new configuration Download Configuration to Opto 22 Device p Address List Download ownload SNAP_PAC_IO 10 192 54 115 Eeey Clear Settings Close Timeout msec p 10000 lt lt Details Configuring Device 10 192 54 115 12 points successfully configured 16 of 16 Assembly Instances successfully configured Configuration saved to flash Device 10 192 54 115 Complete When the configuration has downloaded successfully to the device you are ready to configure an EtherNet IP module using RSLogix IO4AB User s Guide www klinkmann com CONFIGURING AN ETHERNET IP MODULE Configuring an EtherNet IP Module The instructions in this example exercise are primarily for a ControlLogix 1756 L61 However you can also use a CompactLogix 1769 L32E Any differences for the 1769 L32E are included 1 Create a new RSLogix project named Explicit Messaging 2 For ControlLogix select the I O Configuration folder in the controller organizer and manually add an EtherNet IP interface The interface is added to the I O configuration folder ft RSLogix 5000 Explicit_Messaging 1756 161 File Edit View Search Logic Communications Tools Wind
123. rature at point 2 in each 24 hour period you must reset the values after they are read each day Offset and gain analog input Offset and gain calculations are used to calibrate analog points If a 50 mV to 50 mV input receives signals that are slightly off not exactly 50 mV at the lowest point for example the offset and gain can be calculated so that values will appear accurately when read analog points Proportional integral derivative PID loops are used to drive an input PID oop toward a particular value the setpoint and keep the input very close to that value by control control ling an output PID loops are often used in temperature control analog output Some devices attached to analog outputs should not be abruptly stepped Ramping up or down because a sudden change might damage the equipment or cause other prob lems Instead you can gradually ramp the device up or down to the desired value Scaling analog input and output Analog input and output points can be scaled as needed For example you can scale a 5 V to 5 V input point to reflect 0 to 100 Thermocouple linearization analog input Automatic not configurable The remote I O automatically converts the ther mocouple junctions millivolt values into temperature values so you don t have to Choose the appropriate module and make sure you configure the point as the correct thermocouple type E K etc for your purpose
124. rithm The lag for this system was determined to be about 2 seconds The left half of the plot reflects a 0 5 second Output scan rate while the right half shows a 3 second scan rate Notice both scan rates have the same effect on the input however the 3 second scan rate is using less of the processor s resources 11 1 11 1 0 I Data p lnput xis gt Output Axis gt Time Axis gt Close 8 Experiment with gain settings by typing a new value in the Gain field and clicking Apply The easiest way to tune most PIDs is to experiment with the gain constant first Try various gains to see how well the system stays at setpoint and responds to setpoint changes IO4AB User s Guide www klinkmann com With only a gain constant applied the input often stabilizes at an incorrect value In this heating example a gain setting of 30 drove the input close to the setpoint bu subsequent increases failed to eliminate the offset It is time to try integral constants to eliminate the offset error www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR In the example below the white arrows added for the example show where gain constants of 2 5 10 and 20 were applied Name TemperatureControl Error None Input 87 5289 Gain 20 Scan Rate 11 4 sec Mode Puo Setpoint 90 Tunel 0 Scan Counts 112783 Output 161 7775 Tune D 0 Plot 1 0 Det
125. rom Allen Bradley document 1756 RM003 0 LED Off No MODULE objects are configured for the controller there are no modules in the I O Configuration section of the controller organizer 1 Flashing red None of the MODULE objects are Running 2 Flashing green At least one MODULE object is not Running 3 Solid green All the Module objects are Running Detecting Each Generic Ethernet Module s State Many system integrators will want to know precisely which I O module failed RSLogix provides the ability to check on the status of each Generic Ethernet Module This is another extension of the GSV command To inspect the current status of the Generic Ethernet Module additional ladder instructions need to be added for each module in the PLC configuration These are the arguments for the GSV module Class Name Module Instance Name The Generic Ethernet Module you want to test Attribute Name EntryStatus Destination An INT variable to receive the bitmask Here is a screenshot of the GSV instruction configured within the Ladder The Instance Name PACLC is a Generic Ethernet Module already defined within the ladder GSV Get System Value Class Name Module Instance Name PACLC Attribute Name EntryStatus Dest Module_ Status 0 The GSV instruction may add a burden to the ladder s scan time As a result the detection of I O failures should be implemented efficiently Co
126. s 129 Data Selection for the Communication Format 0 ccc cece eens 129 Determining the Number of Assembly Instances 0 00 00 cece e cece eect eee tenes 130 Opto 22 s Mixed Architecture and the A B Comm Format 0 0 c cece cence eee 131 Using CPS with Simple Data Types 2 2 c teen cece c nbn e eee e eens 131 Using CPS With ql vc ccaccene ves betus deat en EEE rea brenndant amecnbebns ee 131 IO4AB User s Guide www klinkmann com IO4AB User s Guide www klinkmann com 1 Welcome Welcome to the IO4AB User s Guide Inside you ll find instructions on how to set up EtherNet IP messaging between an Allen Bradley Logix controller and Opto 22 s SNAP PAC I O using Opto 22 s EtherNet IP Configurator as well as Allen Bradley s RSLogix 5000 software For a list of supported Allen Bradley platforms see page 107 This guide assumes that you are already familiar with how to use Allen Bradley s RSLogix 5000 software to configure Allen Bradley devices SNAP PAC S series EtherNet IP automation environment with PLCs and Opto 22 I04AB User s Guide www klinkmann com USING THIS GUIDE Using this Guide Chapter 1 Welcome Provides information about this guide where to find additional information and how to reach Opto 22 Product Support Chapter 2 Introduction to O4AB An overview of Opto 22 s implementation of EtherNet IP and the things you will need to get started C
127. s to trigger the next message operation because that can cause erratic operation For more detailed information on creating a MESSSAGE object see Creating a MESSAGE Object on page 43 1 Inthe controller organizer right click Controller Tags and choose New Tag 2 In the New Tag dialog box enter or select the following Name Write Message Description My read message for an MSG instruction Tag Type Base Data Type MESSAGE 3 Atthe bottom of the dialog box select Open MESSAGE Configuration 4 Click OK to close the New Tag dialog box and open the Message Configuration dialog box IOAAB User s Guide www klinkmann com www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING Message Configuration Write_Message Configuration Communication Tag Message Type CIP Generic X ag Set Attribute Single Source Element Analog_Output Mi Source Length ja Bytes Servi Cede fig Hex Class 4 Hex Destination Instance 101 Attribute 4 Hex O Enable Enable Waiting Start Done Done Length 0 Eror Code Extended Error Code I Timed Out Error Path Error Text Cancel Apply Help Note that this message is an Opto 22 Object Model Class 0x04 attribute Oxe and references the assembly instance 101 where the output is configured Populate the fields as follows Service Type Set Attribute Single Class 4 Hex To Read an assembly instance is
128. sage Transmitting ST 0 Message Enabled EN 0 Local Remote Local MutiHop Yes Extended Routing Info FilefAIX R100 _ Service ReadAssenbiy Service Code then E Class he E deck E Instance hex 64 _ dec Attribute hex 3 deck B _ Error Description No errors IO4AB User s Guide www klinkmann com www klinkmann com APPENDIX D CONNECTING WITH SLC5 OR MICROLOGIX MultiHop Add Hop From Device This MicroLogix From Port Channel 1 To Address Device EtherNet IP Device str To Address insert IP address of PAC device MSG MG9 0 1 Elements General MultiHop Send Data Receive Data Ins Add Hop The MSG has a limit of 124 16 bit words However when working with the EtherNet IP Configurator there is a lower limit for each assembly For the MicroLogix family an assembly instance may not exceed 62 DINTs 32 bit integers For additional information see Using Counts with EtherNet IP on page 109 NOTE MicroLogix 1100 must use firmware FRN 4 OS Series B or newer to enable CIP Generic messaging through the Ethernet port MicroLogix 1400 already has CIP Generic Messaging support IO4AB User s Guide CONNECTING A PAC WITH A MICROLOGIX 1100 OR 1400 PLC IO4AB User s Guide www klinkmann com E Detecting I O Communication Failures www klinkmann com One important function ladder logic should perform is to detect when an I O
129. ser s Guide www klinkmann com CONFIGURING RSLOGIX FOR IMPLICIT MESSAGING Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verity Assembly Instance 100 BEN BE 102 103 104 1057 106 107 108 1091110 111 112 113 11474 Description Assembly Members 1 DiscreteOutputPoint Alarm Mod 01 Pt Of Add 1 DiscreteOutputPoint Freezer_Door_Statu 1 DiscreteOutputPoint Inside_Light Mod 0 Delete 1 DiscreteQutputPoint Outside_Light Mod Pad Modify 16 AnalogOutputPoint Fuel_Display Mod 0 Mw Pad 32 DiscretelnputPoint Mod 00 Pt 00 oO fWwnNn o n N D 0 0 1 0 2 0 3 0 4 0 5 1 6 1 7 2 A M gt Size of assembly Instance Size 3 DINTs 125 Max instance 11 For the Configuration fields enter 254 for the Assembly Instance and 0 for the size These Configuration values are not used but they must be entered NOTE The Input Instance is an RSLogix READ assembly and the Output Instance is an RSLogix WRITE assembly The Configuration values are not used but they must be entered 12 Click OK The Module Properties dialog box opens showing the Connection tab for you to enter the Requested Packet Interval RPI The RPI is basically the scan time of the Opto 22 device 13 Set the RPI to a reasonable value range is 10 3200 ms then click OK The Opto 22 remote I O has now been configured and added to the RSLogix 5000 software as a generic Ethernet
130. setpoint I O Point PLC or PID Output To control the setpoint using a device on the same brain such as a potentiometer select I O Point choose an I O point from the drop down list or type a new point name Tocontrol setpoint using the Allen Bradley controller select PLC For Initial Value enter the most common operating value A IO4AB User s Guide www klinkmann com www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR lfanother PID loop will control the setpoint select PID Output and choose the PID from the drop down list Output Choose the destination for the PID output I O Point or PLC To use the output for controlling the setpoint or input of another PID choose PLC Lower Clamp Upper Clamp Enter upper and lower clamp values to prevent the output from exceeding a desirable range These values should equal the range of the output point if used Or choose values to make sure that the output device doesn t shut off for example keeping a circulation pump running regardless of the PID output or that the output never reaches a destructively high setting for example keeping a motor below maximum Min Change Max Change Optional Enter minimum and maximum change values The output won t respond until the minimum change is reached for example you may not want a heater to turn on to correct a 1 degree error Maximum change prevents too drastic a change in output for example you could limit the i
131. tcp 10 192 54 75 2001 sp_integer 3 f82PACGallons_In_Tank mmiolip tcp 10 192 54 75 2001 sp_float 0 rABGallons_Requested mmiolip tcp 10 192 54 75 2001 sp_float 1 PAC Display Once the data is available in the scratchpads they may also be displayed in PAC Display Opto 22 s HMI package To access the scratchpads of the PAC controller download and install both PAC Display Basic and PAC Control Basic both free software packages available on the Opto 22 website www Opto22 com Using PAC Control Basic doing the following 1 Create a new strategy by choosing File gt New 2 Right click the I O units folder and choose Add to open the Add I O Unit dialog box 3 Provide a name and select the Type as follows Fora SNAP PAC S series controller select the Generic OptoMMP Device Fora SNAP PAC R1 or SNAP PAC EB1 select SNAP PAC R1 Fora SNAP PAC R2 or SNAP PAC EB2 select SNAP PAC R2 IO4AB User s Guide www klinkmann com www klinkmann com CHAPTER 6 CONNECTING PAC CONTROL AND ALLEN BRADLEY SYSTEMS tAdd 1 0 Unit Information Name Description Type Type Addressing IP Address Ethernet Port My_Strateay Generic OptoMMP Device 2001 Communication from control engine Enable communications from control engine Timeout and disable communications after 3 tries of 1 second s each 4 Save and close your strategy Use your new strategy as the tag database into
132. tered trademark of Schneider Electric Wiegand is a registered trademark of Sensor Engineering Corporation Nokia Nokia M2M Platform Nokia M2M Gateway Software and Nokia 31 GSM Connectivity Terminal are trademarks or registered trademarks of Nokia Corporation Sony is a trademark of Sony Corporation Ericsson is a trademark of Telefonaktiebolaget LM Ericsson CompactLogix MicroLogix SLC and RSLogix are trademarks of Rockwell Automation Allen Bradley and ControlLogix are a registered trademarks of Rockwell Automation CIP and EtherNet IP are trademarks of ODVA All other brand or product names are trademarks or registered trademarks of their respective companies or organizations HN sap user Guide www klinkmann com Table of Contents Chapter 1 Welcome 5 6 0 5ss0kesasecss49553Gn See redoieek seaNEee eee ENTS o 1 USING NS Gude stat oa be van tian deh diin Hada dane tide dot dids E doe D R 2 Documents and Online Help sere siirre ioiaren otini a acta RAAEN EE AA EAEAN 2 Additional Resources for EtherNet IP 0 0 ccc ccc ccc cece cece cece cece eee eeeees 3 Product SUDBOM esise sc deg rabid en cada i i in Meee etadetagtarh reese hers 4 Chapter 2 Introduction to IO4AB 2 0 ccc cece ccc cee cece e eee eee eee eeeeees 5 OPtO22 AAVANTAGE va cassis kan a Mice habe MOA ash Lolth taihnd ange nn does 5 ODO 2 PROMUCIS petise et eerren desma dhed a aS des rasp Rana en menguemmatin ded 6 Architectur
133. the available features see Using I O Point Features on page 104 E Watchdog Output modules only To configure a status On or Off the point should be set to if the Watchdog timer on this device expires click Yes and choose On or Off from the drop down list In order for this to take effect make sure Watchdog is enabled at the device level To do this double click the device in the device tree to open the Modify Device Information dialog Select Yes for Watchdog choose a timeout and then click OK 7 When you have completed the fields click OK A The new point appears in the list Configure 1 0 Modules amp Points Configure PID Loops Configure Assemblies Verify Modules and Points Features Subty Units En 5 00 SNAP IDCS 10 32 VDC VAC Digital Input iE Delete Modify Expand All Collapse All 8 To configure more digital points repeat the steps To configure analog points see the next section O4AB User s Guide www klinkmann com CHAPTER 3 GETTING STARTED Configuring Analog Points Use the following steps to configure analog points on all SNAP analog modules supported by the device 1 In the Configure I O Points amp Modules tab double click the number that represents the analog module s position on the rack For help see Referencing I O Points on SNAP PAC Racks on page 106 SA Add Module Ippe Digital Input Digital Output Analog Output Module
134. tion to the SNAP PAC I O Unit on page 39 Using EtherNet IP Configurator to Add and Configure a SNAP AICTD Module In this section you will use EtherNet IP Configurator to import the Opto 22 SNAP PAC Learning Center s ioCookies I O configuration and then configure the SNAP AICTD module in slot 3 of the module configuration In order to configure the ioCookies I O module configuration in EtherNet IP Configurator you must first use PAC Control to export the I O configuration as an Opto Tag Database otg file Creating an I O Configuration Export File 1 In PAC Control open the PAC Control version of the ioCookies strategy The ioCookies strategy is usually located on your local hard drive at Program Files gt Opto22 gt PAC Project gt Control Basic Examples gt ioCookies 2 Create a new O unit for your SNAP PAC R series controller and move all of the I O points from the existing I O unit Mixed_lO_Unit to the new I O unit as follows a Choose Configure gt I O to open the Configure I O Units dialog box b Select Mixed_lO_Unit and then click the I O Points button to open the Configure I O Points dialog box c Expand Module 00 highlight the point in slot 0 and then click the Move To button to open the Move Point dialog box d Select the new I O unit select the first available target channel and then click OK e Repeat this process for each point highlighting the point and moving it to the new I O unit until you have mov
135. to use this dialog box Modify Device Definition Device Name Z Description Device Type SNAP PAC EB2 m IP Address 10 0 0 2 Port 2001 Temperature Fahrenheit Celsius Watchdog No C Yes Cancel NOTE Changing the IP address in this dialog box does not change the IP address on the device Ifyou want to change the IP address on the device see Changing a Device s IP Address below 3 Click OK to confirm the changes Changing a Device s IP Address 1 Right click the device in the device tree and choose Change IP Settings to open the Change IP Settings dialog box Change IP Settings for 10 192 54 115 IP Address Subnet Mask Gateway Address i DNS Address Qo OK Cancel Co 2 Enter the IP Address and the Subnet Mask for the device If it will be talking to a device on another subnet enter the Gateway router address If it will talk only on the local subnet leave the gateway address all zeros 0 0 0 0 Leave the DNS address at 0 0 0 0 and the Host Name field blank NOTE Make sure the EB1 is on the same subnet as the computer and the PLC EJ o4 users Guide www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR WARNING Each device on your network including computers routers controllers brains and so on must have a unique IP address Failure to assign unique IP addresses may cause catastrophic network or hardware failures If you don t know
136. tput Span Interacting Algorithm Output Span Gain TermP TermI IO4AB User s Guide Gain TermP TermI TermD fficients converting from one equation to another is merely a matter of converting the tuning 1 TermD www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR Inspecting and Tuning PID Loops Using EtherNet IP Configurator you can view PID loops and tune them This section gives you basic steps for inspecting PIDs determining system lag and tuning PIDs See also Opto 22 form 1641 OptoTutorial SNAP PAC PID which we highly recommend for detailed information on PIDs on Ethernet based I O units Form 1641 is available for download from our website at www opto22 com Inspecting a PID 1 With a configured PID downloaded and running on the brain click the Configure PID Loops tab 2 Highlight the PID and then click the Tuning button 3 4 pid0 View PID Loop scanning Name pid0 Error None Input 79 2753 Gain 15 Scan Aate 3 sec Setpoint 79 Tunel 10 05 Scan Counts 112783 Dutput 2 252521 Tune D 10 02 Click a tab to see or change additional data Plot 1 0 Details Misc Details Velocity Algorithm Setpoint and Input plot aa site Adjust resolution using the Input Axis button below the plot Click and drag on the scale to move the line Output Output plot Adjust resolution using he Output Axis butt
137. tput 26 average filter weight 105 B BOOL data type 54 Boolean attributes 50 BootP request 13 C calibrating analog point 105 changing IP address 80 PID loop 90 CIP 3 5 33 objects 8 clamping analog output point 105 communication format 129 configuration file dding analog point 19 ustom scaling 21 config config uration report 85 uring A B controller video 3 PID loop 86 controller scoped tags 47 copying O configuration 76 counter description 104 counts 109 creating PID loop 86 D deleting PID loop 91 device adding 12 digital point configure 16 counter 104 features 104 latching 104 quadrature counter 104 state 104 watchdog 104 105 DINT input maximum 26 output maximum 27 discover device 12 O4AB User s Guide LEE distributed intelligence 5 DNS address 80 download configuration 39 78 E EtherNet IP Configurator installing 12 EtherNet IP module 40 revision number 42 explicit messaging reasons to use 8 G gain definition 105 in PID loops 98 gateway address 14 generic Ethernet module 119 129 Get Attribute Single 45 l O point features 104 referencing 106 O unit import configuration 35 implicit messaging reasons to use 8 import I O configuration 35 input assembly 24 inspect PID loop 93 interacting algorithm for PID 91 P address change 80 SA algorithm for PID 91 L ladder logic 8 lag time for PID 94 latch
138. twork monitoring and control systems Explicit messaging is the only method for accessing SNAP PAC I O in Allen Bradley PLC lines outside of the Logix 5000 family such as the SLC5 05 and MicroLogix 1100 and 1400 families which do not support implicit I O messaging IO4AB User s Guide www klinkmann com SUMMARY IO4AB User s Guide www klinkmann com 6 Connecting PAC Control and Allen Bradley Systems In this chapter you ll learn how to connect a SNAP PAC S controller with an Allen Bradley ControlLogix programmable logic controller PLC so that you can use either implicit or explicit messaging to exchange data between these two automation systems Connecting the two systems includes the following activities e Modifying the PAC Control strategy e Creating and Downloading EtherNet IP assembly instances e Modifying the RSLogix ladder Each of these activities is demonstrated using a simple example In addition to the things listed on page 11 you will need the following things e PAC Project Basic or PAC Project Professional PAC Project Basic is free Both versions are available on the Opto 22 website Opto 22 website www Opto22 com e SNAP PAC R or SNAP PAC S controller In this Chapter Saee T E E 58 Modifying PAC Control wcsssssssssssssssssssssessusssesssssesnssesessssesussssseusssssassssunssssens 58 Creating Scratchpad Assemblies with EtherNet IP Configurator 63 Modifying the RSLogix 5000 Ladde
139. ty Algorithm 90 0 00 09 0 09 44 00 0 09 44 30 0 09 45 00 0 09 45 30 0 Data p InputAxis gt OutputAxisp Time Axis gt Close Set the Mode to Manual if not set already and click Apply In the Output field type one of your two output settings and click Apply Use an output value typical of your system but low enough to allow you to change output by 20 Reset your time axis if necessary by clicking the Time Axis and choosing from the popup menu Then choose Reset Scale Tracking from the same menu The span setting varies according to your system a 3 minute span is often suitable Until you are familiar with the PID plot it is recommended that you avoid using the shortest settings 10 seconds or 1 second After you ve observed a change in the input you can zoom in on the graph which is described later IO4AB User s Guide www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR 7 Wait for your system to stabilize The system is stable when the Input value does not vary significantly some drift can be expected Stabilization may take several minutes depending on the system 3 lt TemperatureControl View PID Loop scanning B o x Name pidO Error None A stable system exhibits little Input 77 32614 Gain 5 Scan Aate 1 sec Mode Buo change in the Input value m S ae P Setpoint 90 Tunel 0 Scan Counts 249642 which is shown numerical
140. u will need to add padding 5 To add a pad click the Add button to open the Add Modify dialog box 6 Under Class select Pad enter the size of the pad for example 28 and click OK Add Assembly Member Description i o o Class Instance Information Attribute Discrete Input Point Discrete Output Point Size In Bits 28 Analog Input Point Analog Output Point Load Cell Input Scratchpad DINT Scratchpad REAL Scratchpad STRING Pulse And TPO Generator Ramp Controller PID Loop Controller Communication Watchdo The pad appears as the last member of element 0 to complete the 32 bit word or DINT You can add up to 124 output DINTs O4AB User s Guide www klinkmann com CONFIGURING RSLOGIX FOR IMPLICIT MESSAGING When you ve completed the output assembly instance you are ready to download the configuration to the Opto 22 device This is also a good time to save the configuration 7 To save the configuration choose File gt Save As Then browse to an appropriate directory name the file for example Opto_IO and then click Save 8 Before you download the configuration it is helpful to check for errors on an assembly configuration report a Inthe device tree select an Opto 22 device EtherNet IP Configurator Opt File Edit Tools View Help D k eS Add new device SNAP PACH E SNAP_PAC_S1 Discovered Devices 00 40 3D 00 9D F8 Select an Opto 22 device b From the Tools m
141. uide USING COUNTS WITH ETHERNET IP Opto 22 s SNAP analog inputs also allow 10 over range This means that for the SNAP AIV module the actual maximum range is 11 VDC or 5 5 VDC This absolute range is 10 beyond the advertised module limit which means the counts may have a maximum magnitude of 27 499 counts NOTE Any range outside of 27 499 counts magnitude is considered an invalid and out of bounds condition Analog Input Exceptions This section applies to the following modules and associated modes including any FM designated parts AP AICTD AP AICTD 8 AP AITM in thermocouple mode AP AITM2 in thermocouple mode AP AITM i in thermocouple mode AP AITM2 i in thermocouple mode AP AITM 8 in thermocouple mode When these modules are configured in their temperature mode they will output counts that are 10 times the linearized temperature value AW MH Wa Mmm wm Mm For example if a SNAP AITM has a J thermocouple input and it is reading 123 4F the counts reported with 1234 as a 16 bit signed integer Resistance Temperature Inputs The SNAP AIRTD and SNAP AIR40K are resistance modules Linearized temperature for the SNAP AIRTD is available for Pt100 and specific nickel based probes The SNAP AIR4OK is strictly a resistance module but may be used for higher impedance probes such as a Pt1000 To read the temperature linearized SNAP AIRTD read the scaled engineering units If counts are used they will
142. utomatically Name This Device Device Name Description Device Type IP Address Port Temperature Fahrenheit Celsius Watchdog No C Yes Cancel 5 At minimum enter a Device Name You can also enter a description select the temperature type and whether you want to use a watchdog Temperature Choose whether temperatures will be handled in Fahrenheit or Celsius Watchdog Select whether you want a Watchdog on the unit The default is No disabled If you select Yes a new field appears enter the Watchdog timeout value in seconds The default timeout is 0 5 seconds NOTE Ifyou want to enable Watchdog on a point make sure to enable it here at the point level as well 6 Click OK to confirm the changes The new device appears in the device tree System IV EtherNet IP Config File Edit Tools View Help D w amp Belal Add new device Unnamed_Device New device Discovered Devices s6u IO4AB User s Guide www klinkmann com CONFIGURING I O MODULES AND POINTS Configuring I O Modules and Points For both implicit and explicit messaging once you have added a device you need to configure its modules and points as described in the following sections e Configuring Digital Points below e Configuring Analog Points on page 19 Configuring Digital Points Use the following steps to configure digital points on all 4 channel and high density SNAP d
143. utton and choosing a lower percentage such as View 1 Minute Span 14 Scroll the Time Axis to locate the point at which you changed the Output Both the time and input axes should display the point at which the Output changed the lag and the point the input changed If not adjust the Input axis and Time axis until this information is displayed Plot 1 0 Details Misc Details Velocity Algorithm Setpoint Output 0 0 D 0 0 10 0 15 From the Data menu select Cursor The data cursor a line with a value bar attached to it appears on the plot EJ o4 users Guide www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR 16 Right click the data cursor and choose Delta X from the Style submenu as shown below Plot 1 0 Details Misc Details Velocity Algorithm Setpoint Output Channel Style g v Value x Y Flip Alignment Delta 13 0 0 17 To measure the system lag the time between the change in output and the change in input click and drag the first vertical red bar to just after the output change Drag the second bar to just before the change in input The Delta X cursor displays Plot 1 0 Details Misc Details Velocity Algorithm the time difference between the two vertical bars 78 50 Input Setpoint Output Drag the first bar into position after the Output change Drag the second bar to a position just before the change in Input 14 0 14 26
144. which IP addresses are safe to use check with your system administrator When the IP address subnet mask and other fields are correct click OK Adding and Deleting Assembly Elements www klinkmann com 1 2 Click the Configure Assemblies tab and then click the Add button to open the Add Modify dialog box Add Assembly Member Description Instance Information Attribute p Discrete Output Point Point Name FeatureSelect Analog Input Paint FeatureE nable l Y FeatureValue ClearFeatureValue OnLatch og Module booo OffLatch Ramp Controller Point fo x PID Loop Controller Communication Watchdog Pulse And TPO Generator Select a class type from the list on the left The classes available for implicit messaging in the EtherNet IP Configurator are a subset of the CIP classes all of which are available through explicit messaging For information on the CIP classes and attributes see form 1770 the Ethernet IP for SNAP PAC Protocol Guide Under Instance Information select a point that you have configured Otherwise you can assign an assembly member to a specific module and point based on their position on the rack See page 106 for module and point addressing IO4AB User s Guide ADDING AND DELETING ASSEMBLY ELEMENTS Add Assembly Member Description Instance Information Attribute Point Name FeatureSelect FeatureE nable Photo_Sensor Mod 00 Pt 0 v FeatureValue Photo S
145. xed data types within a single object you can place REALS DINTs INTs and BOOLs throughout the UDT These values may be read or written at will as a single block of data When implementing digital I O states to map to the EtherNet IP Configurator s assembly instances use the BOOL data type in the UDT definition Remember that RSLogix 5000 will collect continuous BOOL definitions in the UDT into rounded 32 bit data sizes We recommend that you create a BOOL padding in the UDT or else create a BOOL array of 32 values to clearly indicate the extension of the BOOL data This will avoid confusion to data mismatches between the assembly instance and the MSG operation To match this padding the assembly instance configuration must also have an appropriate pad to fill out a block of 32 bits IO4AB User s Guide www klinkmann com CHAPTER 5 SETTING UP EXPLICIT MESSAGING Summary Explicit messaging is simply a manual method of acquiring I O data In combination with the EtherNet IP configurator you are still able to read and write I O values to configure or manipulate I O states Explicit messaging provides a way of accessing data upon demand and it isn t necessarily difficult It requires a couple rungs of ladder to implement a bit more effort than with implicit messaging The ladder controls when incoming and outgoing messaging occurs and the messaging occurs over TCP IP This is very useful for implementing very remote or expansive ne
146. y la 01 SNAP AI i Analog Input A O Floweter_A 40 0voc voce Emami Collapse All Point types and features are shown in the Features Subtype column 7 Toadd more analog points repeat the steps To add digital points see Configuring Digital Points on page 16 Using Custom Scaling Scalable analog modules can be set to show something other than the actual inputs or outputs For example you could scale the readings of a 10 to 10 VDC input point to measure its input as zero liters per second when the real world reading is zero VDC and 1000 liters per second when the real world reading is five VDC NOTE Custom scaling has no effect on the resolution or accuracy of the module 1 Inthe Add Analog Point dialog box click the Custom button in the Scaling area to open the Scale Analog Readings dialog box This example shows units scaled to liters per second At an actual input of 0 VDC A Scaled Units Liters per second the point will show 0 liters per second Atan actual input of 5 VDC the point will Scale Analog Readings Lower Value show 1000 liters per second B Actual 0 voc C Scaled 0 Liters per seco Upper Value D Actua 5 VDC E Scaled 1000 Liters per seco Cancel Help 2 Complete the fields as follows A Scaled Units Enter new engineering units for the module The example uses liters per second B Actual Lower Value Enter the actual real world lower value that the scal
147. y and must be modified according to the capabilities and constraints of your system 1 Make sure the following PID features have already been configured Scan Rate Input Input low range and high range Output Output lower and upper clamp Algorithm Setpoint If your setpoint changes during normal operation tune your PID with the setpoint configured to host so you can simulate setpoints from an input point or from another PID Gain A final gain constant will be determined by tuning but before you can tune your PID your gain constant must be either a positive or negative number according to the type of system you have For example a heating system reports a negative error when heat needs to be applied a negative gain constant turns this error into a positive output for the heater Alternatively a cooling system reports a positive error when the input exceeds the setpoint a positive gain constant maintains the positive output to the chiller Optional depending on your system Minimum and maximum changes to Output and Output forcing when the Input is out of range 2 With a configured PID downloaded and running on the brain click the Configure PID Loops tab 98 I1O4AB User s Guide www klinkmann com CHAPTER 7 USING ETHERNET IP CONFIGURATOR 3 Highlight the PID and then click the Tuning button 35 pidO View PID Loop scanning Name pid0 Error None Input 79 2753 Gain 15 Scan Rate

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