Post by patliby on Cannot Find "Automatically Generate POUs" Option ^{CODESYS Forge talk (Post)}
I would like to enable the feature to automatically generate POUs for Project/Library properties in some of my library/project files. The Codesys help pages indicate it should be on the bottom of the Project Information Summary tab, but mine has no such options (see screenshot). Is there somewhere I have to enable this overall feature or any other prerequisite I am missing? I am using Codesys 3.5.19.20 Reference https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_obj_project_information.html#UUID-9ddc3572-a024-5a49-c0c1-31677991a419_id_c95bfe46c6c18a67c0a8640e01715107_id_0a188ec6fa561b9fc0a8640e0019d8bf
Last updated: 2025-05-08

Post by svn123 on Can V3.5.19 and V2.3.9 be installed on same Windows10 PC without affecting each other? ^{CODESYS Forge talk (Post)}
Hi All, Seasons Greetings! I have Codesys V3.5.19 patch 5 installed on a Windows 10 PC. I have received a program which is for Codesys V2.3.9. First I tried to convert it but had many conversion errors. I am wondering if it is possible to install Codesys V2.3.9 on same PC without affecting the V2.5.19 installations. Is this possible? SVN123
Last updated: 2023-12-28

Post by mrtt on Error while using Codesys SP19 Patch 4 on Windows 11 ^{CODESYS Forge talk (Post)}
Hello, same issue after a fresh install with CODESYS 64 3.5.21.30, on two different PCs Win10 and Win11. But with different Plug-In errors. CODESYS 64 3.5.19.70 runs after a lot of Package deinstallation/installation handling. But every think looks not really stable. Deinstallation of MS C++ and MS Runtime stuff -> CS installation. Than deinstallation of CodemMaster for anti freezing CS.
Last updated: 2025-11-27

Post by rtlman on Scan devices hangs CODESYS ^{CODESYS Forge talk (Post)}
Hello, I have a problem that randomly appeared today. When trying to scan a network adapter in "Deploy Control SL" the whole program hangs and needs to be restarted. I have been running "CODESYS v3.5 SP21 Patch 3" for a while and it has worked without any issues until now. I've tried upgrading to "CODESYS v3.5 SP21 Patch 4" with the same result. I've not made any system settings recently that im aware of which could cause this. Has anybody had similar a issue?
Last updated: 2025-12-12

Post by lraja on Codesys Programming with phyBOARD®-Pollux i.MX8M Plus ^{CODESYS Forge talk (Post)}
Dear All, I am trying to Developing a PLC using phyBOARD®-Pollux i.MX 8M Plus. It is very difficult to find the suitable Codesys control for i.MX8M. I have tried to install CODESYS Control for Linux ARM SL , but unable install it and I am getting the following error, [INFORMATION] Executing SSH command on root@192.168.0.10: Retrieving architecture from package management [ERROR] Expected exit value of command failed: expected 0, received 127 [INFORMATION] Standard output: sh: line 1: dpkg: command not found Kindly check and help phyBOARD®-Pollux i.MX 8M Plus Link : https://www.phytec.eu/en/produkte/single-board-computer/phyboard-pollux/
Last updated: 2023-09-23

Post by wbj0t on Raspberry Pi CM4. CoDeSyS files corrupted after hard reset. ^{CODESYS Forge talk (Post)}
Hello everyone. Raspberry Pi CM4 after some 1 week of work was hard reset mannualy several times and after these hard resets User Management file was missed (when click login button, enter login/password, error: User Management File missed). Also programm can not open file via SysFile library, but this file exists and size of him is 0 bytes, but must be more any way (I keep some kind of archive via this lib). What happens, how files corrupted? Where do I need try to find this error of the codesys or system whole? In the log files of codesys nothing interesting about this happens. Thanks for reading Is this enough hold PlcLogic and SysFileMap.cfg as reserve copy in another place for restoring the programm? And how automate restoring actions if programm files corrupted?
Last updated: 2024-09-16

Post by mabac on No file found ^{CODESYS Forge talk (Post)}
CODESYS introduced many cyber security related changes over the last few years, one of them is to restrict file access. By default, file access is restricted to the PlcLogic folder and subfolders of the CODESYS control runtime of version 3.5.19.0 and newer. For Control Win this would be the folder C:\ProgramData\CODESYS\CODESYSControlWinV3x64\xxxxxxxx\PlcLogic\ To enable access to other folders, you can configure additional paths by adding them to the file CODESYSControl.cfg. For example: [SysFile] FilePath=C:/temp/test FilePath.1=C:/Users/Public You should now be able to access your file in C:\temp\test\ or in C:\Users\Public
Last updated: 2024-10-30

Post by struccc on Request a dark mode for CODESYS ^{CODESYS Forge talk (Post)}
😁 Yes, exactly... I have a clue about the why not... But really, it was many years, releases ago... Agree, this is not a functionality customers would pay for, but it's one rendering the product cool and contemporary. Like many other "simple" features like: Opening multiple projects within the same IDE Not just attaching, but editing diverse files inside the IDE (like XML, TXT, SVG?) Use 3rd, CODESYS independent plugins, editors inside the IDE... Isn't it possible to integrate CODESYS Engineering under VS? Or just use the core functionality from VS? Or the LINUX guys have a better idea?
Last updated: 2024-11-13

Post by askic on Name Validation of Visualization objects ^{CODESYS Forge talk (Post)}
Hello, In my projects, I'm following this recommendation about the rule names in Codesys https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_rules.html, so I always use backtick identifiers, not only for variables, but also for the object names. However, I have noticed that in the current version of Codesys, when adding Visu object, it is not allowed to used these identifiers in the name. This is very different from all other objects like, folder names, POU names, Variable list names etc. I wonder if there is some hidden settings I can use to enable backtick identifiers in the Visu object names? Attached is a screenshot with the details. Thank you!
Last updated: 2025-01-10

Post by benemenn on OPC UA Method - How to wait for result? ^{CODESYS Forge talk (Post)}
so from what i've learned. Codesys OPCUA Server can only provide OPC UA Methods, when they are created in an XML Model beforehand. So you have to create the XML Model with OPC UA Methods. Then load that model into codesys and create the IEC Blocks. This is automated Code and will create all the variables and Methods from your XML Model. Then they will be displayed on discovery with an OPC UA Client. As far as I understood. There is no way for Methods to be shown in OPC UA when not using an external XML Informationmodel. Codesys can not yet create the informationmodel on itself. Regards
Last updated: 2025-04-02

Post by benemenn on OPC UA Method - How to wait for result? ^{CODESYS Forge talk (Post)}
so from what i've learned. Codesys OPCUA Server can only provide OPC UA Methods, when they are created in an XML Model beforehand. So you have to create the XML Model with OPC UA Methods. Then load that model into codesys and create the IEC Blocks. This is automated Code and will create all the variables and Methods from your XML Model. Then they will be displayed on discovery with an OPC UA Client. As far as I understood. There is no way for Methods to be shown in OPC UA when not using an external XML Informationmodel. Codesys can not yet create the informationmodel on itself. Regards
Last updated: 2025-04-02

Post by alex2 on Error Highlighting Not Working in CODESYS v3.5 SP10 on Windows 11 ^{CODESYS Forge talk (Post)}
Hello everyone, I'm currently using CODESYS v3.5 SP10 on Windows 11, and I've noticed that syntax errors are not automatically underlined in red as they normally should be. Is there a specific setting that needs to be enabled for this feature to work? If so, could you please let me know where to find it? I’ve already tried uninstalling and reinstalling CODESYS, but that didn’t resolve the issue. Also, i have a teammate who have exactly the same computer as me and he didnt encounter any issue. Thank you in advance for your help!
Last updated: 2025-05-13

Post by qkkk on Device Scan ^{CODESYS Forge talk (Post)}
Hello all, I have developed a custom I/O driver in CODESYS that communicates via a Unix Domain Socket. In my DeviceDescription.xml, I have set up the following: <scan supported="true"> <scanfbinstance fbname="IOScanDevice"> The goal is to allow the user to scan for connected I/O modules from the CODESYS GUI ("Scan for Devices") and automatically populate the device tree with detected submodules.</scanfbinstance></scan> The function block IOScanDevice is implemented in the driver library and added to the main device's FB instances. However, when I initiate the scan from the GUI, nothing appears to happen the function is not executed. Is there an example project or driver (open source or from CODESYS Forge) that demonstrates a working custom scan implementation?
Last updated: 2025-05-26

Post by rockallsue on Frustration-Fueled Feedback on Project File Management and Git Integration ^{CODESYS Forge talk (Post)}
Some developers export ST code manually and edit it in VSCode, then copy it back. However, a more practical approach might be using automation scripts (PowerShell, Python) to extract and inject code into the CODESYS project. You could also check if CODESYS Automation Server or CODESYS API allows better ST access for external tools. https://www.codesys.com/the-system/releases-updates-lifecycle/release-plan-roadmap.html Network drive issues are particularly painful. As a mitigation, you could try using local project storage with periodic cloud sync instead of directly saving to a network drive. Using Rsync or Syncthing for automatic but safe synchronization might reduce risks of file corruption.
Last updated: 2025-06-03

Post by bschraud on Zielsystem stimmt nicht mit dem verbundenen Gerät überein ^{CODESYS Forge talk (Post)}
Hallo, nach einer Umrüstung des RPi auf SSD habe ich den RPi neu aufgesetzt. Nach dem Installieren der Runtime (4.11.0.0 raspberry, all) auf den RPi kann ich das Gerät nicht mehr verbinden. Die Fehlermeldung lautet "Das gewählte Zielsystem 'Codesys Control for Raspberry Pi MC SL' stimmt nicht mit dem verbundenen Gerät 'Codesys Control for Raspberry Pi 64SL' überein. ID-Diskrepanz: Ausgewählt=000 0011, Online=0000 0012" Bei der Konfiguration des Laufzeitsystems kann man nur Multicore 64-bit (Aarch64) auswählen. Beim Aktualisieren des Gerätes im Gerätebaum habe ich Raspberry Pi MC SL in der Version 4.11.0.0 ausgewählt. Diese Version habe ich auch ausgewählt, weil nur diese Version für den produktiven Einsatz zugelassen ist. Die codesys Version ist frisch installiert, also 3.5.19.60 Vielen Dank für Ihre Hilfe
Last updated: 2024-03-08

Post by stewnguth on New License not working. ^{CODESYS Forge talk (Post)}
Hey there, I am pretty new to the codesys space, but I got a codesys control basic M license for my raspberry pi that isntalled with no problem yesterday. Today, I went to install the visualization M locense as well because I went over the variable limit and am getting a "servernotfound" error in codesys when attempting to activate. I also tried to follow the advice in some other threads and install using a license request file on the web interface but am getting a message saying "An internal error occured" when attempting to install the license. Can anyone help me get this up and running? Thanks for your time.
Last updated: 2024-05-23

Post by aria13 on Has anyone fed ESP32 sensor data into CODESYS (via MQTT/Modbus)? ^{CODESYS Forge talk (Post)}
Has anyone tried sending live sensor data from an ESP32 into a CODESYS runtime (for example via MQTT gateway or a Modbus bridge) to trigger PLC logic? I was reading an ESP32 → MQTT tutorial (https://www.theengineeringprojects.com/2021/11/esp32-mqtt.html) that shows how easy it is to publish sensor data from an ESP32, and I’m wondering how practical that is when tying the stream into industrial control software like CODESYS. I’ve also seen Arduino forum threads where people relay sensor streams to MQTT brokers and Raspberry Pi projects that bridge MQTT→Modbus, so I’m mainly curious about real-world issues: reliability, message latency, and simple patterns you’d recommend for safe PLC integration. Any tips, examples, or gotchas from folks who’ve done this?
Last updated: 2025-10-29

Post by abinvest579 on TCP Client ^{CODESYS Forge talk (Post)}
Hi All, I am using codesys based plc to read and control magna power DC supply over LXI protocol using SCPI command. To connect device required socket programming for that i am using Net base service library function block TCP_Client to establish connection over TCP/IP , TCP_Write to write SCPI commands and TCP_Read to read data from Magna power DC supply. I have attached screenshot for logic developed. I am able to connect and write commands to device but i not receiving any information from device. For writing Commands i also tried various end of line character like \n,<nl>, A, D, 10, 13, 0x0A, 0x0D but not received any status from device. For testing purpose i am using simple command '*IDN?' to read data. Also if tried to check on hercules software what data actually plc read, first it read correct data after that is read wrong data as see in screen shot. 'Hello World' was correct read and after that Codesys in replaced with 'Codesysorld' that is not correct way. Same issue also appeared for send data. Any one have face same issue how i can read data directly from device correctly and send data please suggest solution on this.</nl>
Last updated: 2024-07-01

Post by jinlee on Symbol Configuration ^{CODESYS Forge talk (Post)}
Hi guys, I am working on an old project which using Codesys v2.3 talks to Beijer's screen TA150 (IX-Developer 2.20). Codesys v2.3 is different with 3.5 and Ecockpit. I know how to import the symbols from PLC to HMI for Codesys 3.5 and Ecockpit. However, I do not know how to do it on Codesys v2.3. I know that I can make excel sheet to import and export from the HMI and add whatever I want based on PLC. However, is there any quicker way of doing this? So that I can directly import the symbols (tags) from PLC (Codesys 2.3 to HMI).
Last updated: 2023-08-29

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Last updated: 2024-10-26

Post by paulpotat on Project size increasing continuously ^{CODESYS Forge talk (Post)}
I still have the same problem with Codesys 3.5 SP18. Initially, my project is ~5 Mo. I work on it for like 3-4 days and it goes up to ~10Mo. If I make an export of the project and import it in a new empty project, it goes back to approximately 5 Mo. Why is it doing this ?
Last updated: 2023-08-23

Post by totorovic on CSVReaderInit returns error : INVALID_HANDLE ^{CODESYS Forge talk (Post)}
We changed the path where the CSV file is. From intern memory of the IPC to a USB key. We still have this error 'INVALID_HANDLE'. We must restart the Codesys runtime to clear it. That is a big problem for us because machine is in production. @eschwellinger What do you mean by "this is a security issue not to read/write in the plc allowed path"
Last updated: 2023-10-27

Post by bossjosh21 on RevPi Connect RS485 ^{CODESYS Forge talk (Post)}
Hi Sir Kevin. May I know how you came up with this solution. Im a bit confused but I tried to put this. [SysCom] Linux.Devicefile=/dev/ttyRS48 (remember, no 5 at the end!) then set com port in codesys to 6. It also works for me but want to know where did you get this. Thank you.
Last updated: 2023-12-06

Post by mucleus on What is the solution for "Application stopped on recovery switch request"? ^{CODESYS Forge talk (Post)}
Hi, everyone. I am using CODESYS RTE and Profinet I/O or EtherCAT I/O. Occasionally (once every 1-2 months) the attached image occurs and the program stops. I want to know why this phenomenon occurs and how to solve it. I attached log. Please help me. Thanks.
Last updated: 2024-07-05

Post by mmpl on Array to String ^{CODESYS Forge talk (Post)}
I would like to create one large JSON string from an array of objects, where each object contains a value. My current approach involves using a for loop and string concatenation, but with 20,000 elements in the array, this method takes almost 7 seconds and negatively affects the PLC scan time. Is there a more efficient way to accomplish this?
Last updated: 2024-07-18

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