Post by kuegerls on SysProcessExecuteCommand2 and CANopen Device
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Hello, CODESYS Control is running on my RevPi, and my system communicates over a CANbus with a master using the ConnectCan module (Slave - CANopen Device). The communication works perfectly fine so far. However, as soon as I call a Python script with "SysProcessExecuteCommand2" that creates a CSV file and executes without errors, the master does not adopt any changes to the Transmission Process Data Objects (TPDOs). I don't quite understand what one has to do with the other, and perhaps someone can help me with this. Here is my script call: SysProcess.SysProcessExecuteCommand2(pszCommand:='python /home/pi/test.py', pszStdOut:=sCMDOutput, udiStdOutLen:= SIZEOF(sCMDOutput), pResult := ADR(eResult)); Thank you in advance! Best regards, Stefan
Last updated: 2024-06-20
Post by jasperclauwaert on Persistent Retain Variables Not Visible in Online View (WAGO PFC100 + CODESYS)
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Hi everyone, Iβm working on a WAGO PFC100 with CODESYS. During development everything worked fine, but in the final stage I set several variables to PERSISTENT RETAIN. When I go online, most of these persistent variables cannot be monitored. Instead, I see: <Value of the expression cannot be retrieved> Interestingly, a few variables do show their values correctly, but the majority do not. The variables are not used as pointers or in any unusual way. The application compiles and runs without errors. Has anyone experienced this before? Is this a known issue with PFC100 or CODESYS? Any ideas on what could cause this behavior? Thanks in advance! Jasper
Last updated: 2025-10-23
Post by jasperclauwaert on Persistent Retain Variables Not Visible in Online View (WAGO PFC100 + CODESYS)
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Hi everyone, Iβm working on a WAGO PFC100 with CODESYS. During development everything worked fine, but in the final stage I set several variables to PERSISTENT RETAIN. When I go online, most of these persistent variables cannot be monitored. Instead, I see: <Value of the expression cannot be retrieved> Interestingly, a few variables do show their values correctly, but the majority do not. The variables are not used as pointers or in any unusual way. The application compiles and runs without errors. Has anyone experienced this before? Is this a known issue with PFC100 or CODESYS? Any ideas on what could cause this behavior? Thanks in advance! Jasper
Last updated: 2025-10-23
Post by eschwellinger on Problems connecting to Codesys 4.9.0.0 runtime on my Wago PFC200
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I've send out a workaround for this.. Best Regards Edwin
Last updated: 2023-08-26
Post by eschwellinger on CODESYS Automation Server Connector for 3.5 SP11
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https://store.codesys.com/en/codesys-automation-server-connector.html Programming System CODESYS Development System V3.5.15.0 or higher
Last updated: 2023-08-30
Post by janderson on Ethercat scan for devices not picking up EL7041 as a softmotion axis
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also my ethercat bus won't run.
Last updated: 2023-09-02
Post by jegerjon on VPN
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Hi, witch VPN provider for remote PLC Acess do you use/recomend? Preferedbly one where you can Grant certain users acess to specific controllers.
Last updated: 2023-09-06
Post by jegerjon on VPN
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Hi, witch VPN provider for remote PLC Acess do you use/recomend? Preferedbly one where you can Grant certain users acess to specific controllers.
Last updated: 2023-09-06
Post by jegerjon on VPN
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Hi, witch VPN provider for remote PLC Acess do you use/recomend? Preferedbly one where you can Grant certain users acess to specific controllers.
Last updated: 2023-09-06
Post by eschwellinger on Project compiling error in Simulation mode
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I fear you need to update if you need a solution for this.
Last updated: 2023-09-08
Post by imdatatas on Detecting if a client is connected to webvisu server
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Thank you @dgirard Your idea and above description helped me what i was looking for.
Last updated: 2023-11-08
Post by pflot59 on Migration von "CODESYS Control for PFC200 SL" zu WAGO FW26 "CODESYS V3.5.19.2"
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You can find a guide here : https://techdocs.wago.com/Software/eCOCKPIT_Migration/en-US/index.html
Last updated: 2023-11-21
Post by pflot59 on Migration von "CODESYS Control for PFC200 SL" zu WAGO FW26 "CODESYS V3.5.19.2"
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You can find a guide here : https://techdocs.wago.com/Software/eCOCKPIT_Migration/en-US/index.html
Last updated: 2023-11-21
Post by wbj0t on connect IDE to plc that uses modem ppp
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Thanks for reply. I did all understand, thanks you :)
Last updated: 2024-07-01
Post by hyys12 on How to use/create SOTU in LD program
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Yes. R_TRIG and F_TRIG works exactly like needed for this.
Last updated: 2024-07-11
Post by strannik on SoftMotion SML
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Good afternoon. Thank you colleagues for your responsiveness and willingness to help. I've already figured it out.
Last updated: 2024-07-15
Post by pazderai on CanOpen write issue
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Anyway, any idea how to get command byte 0x22 for sdo write if I use codesys cia405 canopen library?
Last updated: 2024-07-16
Post by eschwellinger on TargetVisu on Raspberry?
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install this: https://store.codesys.com/de/codesys-targetvisu-for-linux.html via CODESYS Installer and deploy it by update command
Last updated: 2024-07-26
Post by mrbartpawlowski on OMAC PackML library 1.0.04
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Hi, I have this project and library. I don't have documentation . I'm sure there has to be one for it.
Last updated: 2024-08-16
Post by eschwellinger on Step motor ECT60 Ethercat in codesys 3.5
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for Control Win you need to have installed Npcap https://www.winpcap.org then it will work
Last updated: 2024-08-16
Post by gilbertamine on Comparing Arrays of structure
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If I knew it was this simple... Exactly what I was looking for ! Thanks you very much.
Last updated: 2024-08-23
Post by soulplox on Python API for GIT extensions
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you might want to take a look at https://content.helpme-codesys.com/en/CODESYS%20Git/_git_using_scripting.html
Last updated: 2024-09-03
Post by sinameshksar on TCP Socket Client
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Hello I'm looking for a TCP socket client project example. Can you assist?
Last updated: 2024-09-11
Post by lsislsis on Alarms Placeholder
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Hello. Is there any way to set placeholder for Alarms Storage at Usb Flash Disk? Regards
Last updated: 2024-10-03
Post by winki on Modbus TCP & RTU with Control for Linux SL
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Your right, much easier with Linux control SL ARM. Everything is working.
Last updated: 2024-10-24
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