Post by mejak on Raspberry Pi USB HID RFID Reader - read ID in plc program
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Hello, I have an RFID reader that is detected as a keyboard. While looking for information, I came across examples using visualization. I would like to read the ID without visualization or external code in python, only in PLC. I found on the forum that you can try reading directly from potru /dev/... https://forge.codesys.com/forge/talk/Runtime/thread/24b3527036/ How to read values directly in codesys? Or maybe there is another solution? Best Regards
Last updated: 2024-01-25
Post by suthesan on Error when I go online on Simulation or PLC
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Hello I not sure if I made this topic under the right category. But I have a error, when I try to run a simple code on simulation or PLC. I have also tried to make a fresh project. I am testing the PLC and want to see if there is some way I can make an actuator run. Please help by looking at the picture, Iam stuckd and I don't know how to fix it.
Last updated: 2024-02-07
Post by androidzz on Json Builder problem?
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Dear reader, I am using the codesys JSON utilities SL, 1.9.0.0 library. And then specifically the FB JSONBuilder. I need to create a main object with at least 2 objects in it. The first object is no problem, but I cannot insert the second object into the main object. See attached my code and the result I get. I am assuming that I am doing something wrong with the parent index but have tried a lot and can't get it done. Kind regards, Rob
Last updated: 2024-03-11
Post by shaun on GAMP 5 and 21 CFR Part 11
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Good day I have been asked to do a project. It is for a pharmaceutical application and data needs to be logged. The spec calls for the control system to comply with GAMP 5 and 21 CFR Part 11. From what I can find online it's got to do with electronic records and validation. Has anyone developed any software using this or are there codesys librarys that can make my life easier in writing this code
Last updated: 2025-10-22
Post by antonz on OSCAT Scale_r function not working in LD 4.60 works in LAD2 on 3.5.21sp3
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That's what I found as well Shaun. I have seen it at least in versions 3.5.21.1 and 3.5.21.3. There seems to be an issue with the FBD/LD package v4.6.0.0. The workaround proposed by Tim works but needs to be done manually on every code change/addition. For now we manually downgrade the FBD/LD package from v4.6.0.0 down to v4.5.0.0 after installation of CoDeSys. Same as you did. I hope this gets fixed on a next patch.
Last updated: 2025-11-21
Post by kmax365 on ModbusTCP_FunctionCode06
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Hey Guys, I am trying to create a ModbusTCP_FunctionCode06 which i will use as a single write register for programming a test code for Power Meter(PQM_1000) I have tried to reserach how to add it it from the libraray manager and have largely been unsuccessful. Does anyone know where I should Look? And by the way, I am i wam using Codesys V3.5 Vs 21 Patch 4 I look forward to something positive. Best, Kmax365.
Last updated: 2026-05-14
Post by kmax365 on ModbusTCP_FunctionCode06
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Hey Guys, I am trying to create a ModbusTCP_FunctionCode06 which i will use as a single write register for programming a test code for Power Meter(PQM_1000) I have tried to reserach how to add it it from the libraray manager and have largely been unsuccessful. Does anyone know where I should Look? And by the way, I am i wam using Codesys V3.5 Vs 21 Patch 4 I look forward to something positive. Best, Kmax365.
Last updated: 2026-05-14
Post by imdatatas on MC_MoveAbsolute: C0138: No matching 'FB_Init' method found for instantiation of SMC_MoveAbsRelPerformerImpl [ERROR]
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Dear @gseidel, Thank you for your reply. The exact version of Codesys and its compiler was 3.5.21.20. The compiler version was fixed and could not be changed in project settings. Since I couldn't continue due to this compilation error, I temporarily overcame this issue as follows. -- I completely uninstalled Codesys 3.5.21.20 and completely deleted the Codesys folder in the C:\ProgramData folder. -- I restarted my computer and installed Codesys 3.5.19.70. -- I updated the Codesys Installer and all its add-ons to the latest versions. -- The project that was giving me the compilation error I mentioned before is now open with Codesys 3.5.19.70, compiled it, and successfully downloaded it on the device. -- I haven't encountered the same problem anymore. I think this issue is related to SP21 and its compiler. Frankly, I'd expect a project created with an older version to compile without errors after opening it with the latest Codesys version and updating all libraries. Regards, imdatatas
Last updated: 2025-09-26
CoDeSys libraries for BECKHOFF EL7332/EL7342
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CoDeSys libraries for BECKHOFF EL7332/EL7342
Last updated: 2023-08-25
Import RsLogix 5000 project to Codesys
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Import RsLogix 5000 project to Codesys
Last updated: 2023-09-07
Codesys Control RTE V3. Remote Control
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Codesys Control RTE V3. Remote Control
Last updated: 2023-09-22
Recommended Specification for running CodeSys
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Recommended Specification for running CodeSys
Last updated: 2013-11-14
Kommunikationsunterbrechung zwischen CODESYS und RPi 3
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Kommunikationsunterbrechung zwischen CODESYS und RPi 3
Last updated: 2017-02-20
CODESYS Development System V3.5.18.30 Installation Error
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CODESYS Development System V3.5.18.30 Installation Error
Last updated: 2022-12-07
CoDeSys OPC server with SIMULATION3 interface
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CoDeSys OPC server with SIMULATION3 interface
Last updated: 2016-02-24
Neues Forum zur CoDeSys OPC Anbindung
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Neues Forum zur CoDeSys OPC Anbindung
Last updated: 2011-04-14
Modbus übertragung von CodeSys nach Excel
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Modbus übertragung von CodeSys nach Excel
Last updated: 2010-08-01
CoDeSys V3 mit Raspberry Pi Kamera
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CoDeSys V3 mit Raspberry Pi Kamera
Last updated: 2016-05-05
Codesys Projekt läst sich nicht öffnen
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Codesys Projekt läst sich nicht öffnen
Last updated: 2017-12-10
CODESYS on RPI - tcpip socket
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CODESYS on RPI - tcpip socket
Last updated: 2022-07-14
Codesys V3 and Enron Modbus
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Codesys V3 and Enron Modbus
Last updated: 2022-11-09
PY Script aus CoDeSys Programm ausführen
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PY Script aus CoDeSys Programm ausführen
Last updated: 2017-01-25
CoDeSys 3 auf dem STM32
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CoDeSys 3 auf dem STM32
Last updated: 2009-03-03
CODESYS + Funktionale Sicherheit SIL3/PLe
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CODESYS + Funktionale Sicherheit SIL3/PLe
Last updated: 2020-05-28
Codesys on Beaglebone Green Wireless?
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Codesys on Beaglebone Green Wireless?
Last updated: 2019-07-04
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