Post by eschwellinger on CODESYS Control for Linux ARM SL (32 bit) on Moxa UC-3100 IPC ^{CODESYS Forge talk (Post)}
I would recommend to ask Moxa for a newer version of Debian. Debian 9 ("Stretch") has reached its end of life and is no longer receiving security updates from the official Debian Security Team as of June 30, 2022. This means any systems still running Debian 9 are vulnerable to security risks and should be upgraded to a newer, supported version of Debian like Debian 10 ("Buster") or Debian 11 ("Bullseye").
Last updated: 2025-07-14

Post by fschuler on No connection to Raspberry at runtime installation ^{CODESYS Forge talk (Post)}
Hi, I try to install the Codesys realtime in a Raspberry PI 3B+. When I click on the installation button I get always the message No connection to device: An established connection was aborted by the server. Raspberry 3B+ with newest raspberry PI OS. Codesys 3.5.15 Patch 1 Codesys Runtime Package 3.5.16.20 SSH is activated. I can login with Putty Ping is possible IP address search is possible Just the installation is not started.
Last updated: 2025-07-23

Post by arwie on Working on exporting/importing projects to PlainText. ^{CODESYS Forge talk (Post)}
To better track project changes in git I created a script that exports the project structure as text files. Textual POUs are stored as text, everything else as XML (with timestamps removed). The file structure is stored under path/to/your.project.txt Git merge will not work, but at least tracking changes is much easier. Script: https://github.com/arwie/controlOS_demo/blob/main/codesys/txtfy.py Example output: https://github.com/arwie/controlOS_demo/tree/main/codesys/controlOS_demo.project.txt
Last updated: 2025-07-24

Post by jampid on Codeys Ladder LD2 ^{CODESYS Forge talk (Post)}
Hi, Has anyone managed to use the last four buttons in a POU toolbar in LD2? You can close and open by clicking from one small rectangle to another (same for deleting a closure //). Linking K to D causes a series connection with all the branches // above. Amazing! I don't really see the advantages of this supposedly modern and efficient language over the old LD/FBD. Can anyone explain?
Last updated: 2025-07-24

Post by timvh on I want to show the current recipe name in the visualization screen ^{CODESYS Forge talk (Post)}
Maybe the easiest solution for you is to add one STRING variable to your recipe and enter the name of the recipe in variable value. This is little bit double the work (naming the recipe and entering the value of the STRING variable), but in that case you always have the current value of the variable which you can read from the application and show in the visualization.
Last updated: 2025-09-04

Post by kurtk on Screenshot with "Sys Process Execute Command" ^{CODESYS Forge talk (Post)}
I am working on this same thing... I wonder if when you execute it in a "terminal" it is a graphical terminal window running under X whereas when it is run from a SysProcess, it is "headless" and hence X-less Does DISPLAY=:0 magically attach to the X session Wouldn't it make sense that scrot or imagemagick would automatically by default reference DISPLAY=:0 I'm just trying to figure out how this works or is supposed to work
Last updated: 2025-09-12

Post by reinier-geers on CAnopen stack ^{CODESYS Forge talk (Post)}
Ive got a project with 6 devices . Version 3.5.9.2 Now i change one to a other device 3.5.20.40 So i update the project to V3.5.20.4 Now i have a lot off faults in the canopendevices . Somehowe the first has no problem and seems that the canopenstackts stays in V3.5.9.2 the others in V4.2.0.0 But i cant put it back to 3.5.9.2 WHY ? And how can now witch one i can update and witch one not ?
Last updated: 2025-09-22

Post by reinier-geers on CAnopen stack ^{CODESYS Forge talk (Post)}
Ive got a project with 6 devices . Version 3.5.9.2 Now i change one to a other device 3.5.20.40 So i update the project to V3.5.20.4 Now i have a lot off faults in the canopendevices . Somehowe the first has no problem and seems that the canopenstackts stays in V3.5.9.2 the others in V4.2.0.0 But i cant put it back to 3.5.9.2 WHY ? And how can now witch one i can update and witch one not ?
Last updated: 2025-09-22

Post by timvh on How to correctly create a device descriptor (.devdesc.xml) for a custom Linux ARM64 PLC in CODESYS 3.5.21.20? ^{CODESYS Forge talk (Post)}
If you are a vendor of controllers and want to have your own CODESYS Runtime on your device, then you need to contact the CODESYS Sales team and ask for the runtime Toolkit. For resellers of CODESYS devices, this can be interesting. If it is only for a few devices, then why not just take the standard runtime?
Last updated: 2025-10-07

Post by mdetrana on VPLC Section 'Gray-ed Out' ^{CODESYS Forge talk (Post)}
When evaluating Codesys functionality, I found that the VPLC tab under Deploy Control SL > Operation > VPLCs is 'gray-ed out', see attached image. I'm trying to evaluate how my infrastructure will interact with Codesys on a Raspberry Pi 4, so I'm trying to demo running it. I was going through the Codesys tutorial here, and it never shows the tab as grey, so I do not know how to proceed. Let me know if I can get any additional information that can help.
Last updated: 2025-10-09

Post by nathant on Some visualization objects disappear when user is logged in? ^{CODESYS Forge talk (Post)}
I am deploying a webvisu on Codesys 3.5 SP 19.2 with legacy user management. I noticed that when a user logs in, some text and a rectangle I have (for aesthetics) both disappear. I made sure that none of the objects in question are linked to a state variable. Anyone know the cause/solution to this? Nothing crucial to the machine's function is lost, but it is a little annoying.
Last updated: 2023-12-15

Post by wedahitha on Could not open library 'SysSocket23, ^{CODESYS Forge talk (Post)}
Hi there, I am trying to open a codesys project done by someone else and Once I install all the libraries I get this error [ERROR] : Library Manager [PROJECT 01: PLC Logic: Application]: Could not open library 'SysSocket23, * (System)'. (Reason: The library 'SysSocket23, * (System)' has not been installed to the system.) SysSocket23 is a standard library and I also tried using the same OSCAT library which was from the original computer that made this code. Using CODESYS V3.5 SP18 Patch 2 Please help me how to solve this problem.
Last updated: 2023-12-19

Post by martinlithlith on Mux I2C ^{CODESYS Forge talk (Post)}
hi! this is also a delayed answer, sorry for this. when coding in python i get the TCA9548a working. Is there someone who knows how big of a effort it would be to update Stefan's original code to make it work with a more up to date version of codesys or should i downgrade my system? andrax - are you using a downgraded version of codesys or have you downgraded all the libraries? What Oscat lib are you using? what version? thanks for your reply! Martin
Last updated: 2023-12-31

Post by toby on Codesys Control Raspberry PI 4.10.0 - missing 'Update Raspberry PI' option ^{CODESYS Forge talk (Post)}
Hi Edwin, Thanks for the message. My apologies I should have researched this more thoroughly before posting on here. I found a solution to my issue on this post: https://forge.codesys.com/forge/talk/Runtime/thread/6455efaa17/ I needed to run the 'CODESYS Installer' as an Admin, then install the RPi package v4.10.0 in to my package (v3.5 SP19 Patch 5). Thanks, hope you have a good day. Toby
Last updated: 2024-01-09

Post by ofey on two different OPC clients with different privileges ^{CODESYS Forge talk (Post)}
Hi! I have usually only connected one OPC client (our system) to an OPC server created in the codesys environment on a PLC. This OPC client has a lot of write privileges. A customer also want OPC access, but I want to restrict his access to only read certain values. Do you know if this is possible inside the single codesys runtime running on a controller?
Last updated: 2024-02-01

Post by jshirazi on Restore license on Raspberry Pi ^{CODESYS Forge talk (Post)}
Hi, I recently got a license for Raspberry Pi, after license activation I made a backup copy of "CMLicenseNew.WibuCmRaU" file to a safe place. Things got complicated and I tried to downgrade OS for some reason after that I tried several times/ways to restore my license with no luck. the specifications are as follows: Raspberry Pi 4 Model B Rev 1.1 codesyscontrol 4.10.0.0 SDK 3.5.19.30 Logs: **** ERROR: CodeMWriteLicenseFile: 'CMLicenseNew.WibuCmRaU' failed: Container not found or Server dose not support .... So if someone know a solution for this please kindly help me. Regards
Last updated: 2024-02-03

Post by jinlee on Multiple WebVisu ^{CODESYS Forge talk (Post)}
Hi, thank you for replying. Basically, I have a main visu with frame selection. So, under some condition the frame will switch to a specific frame. It used to be controlled by variable using "Switch frame variable". However, I realise it will change all the HMI screen at one time. So I removed the variable, and still looking for a solution to do that. Do you have any idea?
Last updated: 2024-02-06

Post by nmcc on Toggling Visualizations using HMI Physical Buttons ^{CODESYS Forge talk (Post)}
Hey thank you for the reply dkugler. I am sorry if this seems like a stupid question. I have the use current visuvariable checkbox enabled. I can see the string names of all my visualizations. I am trying to use ladder logic to be the anser to the button press using "VisuElems.CurrentVisu := 'MainScreen';. This returns an error. Any idea what I am doing wrong or could you point me in the right direction for fixing this. Thanks,
Last updated: 2024-02-13

Post by nmcc on Toggling Visualizations using HMI Physical Buttons ^{CODESYS Forge talk (Post)}
Hey thank you for the reply dkugler. I am sorry if this seems like a stupid question. I have the use current visuvariable checkbox enabled. I can see the string names of all my visualizations. I am trying to use ladder logic to be the anser to the button press using "VisuElems.CurrentVisu := 'MainScreen';. This returns an error. Any idea what I am doing wrong or could you point me in the right direction for fixing this. Thanks,
Last updated: 2024-02-13

Post by amy123 on CSV Utility CANNOT_OPEN_DIRECTORY ^{CODESYS Forge talk (Post)}
Hello, I tried using the CSV Utility SL Example from the CODESYS IIoT Libraries SL. No matter what path I try, I can not get the InitSave to work from CSVWRitersSTExample, line 2. It always gives the error 'CANNOT_OPEN_DIRECTORY'. I am running this on an Windows Azure VM, with Codesys Control Win V3 x64. I added a folder called 'temp' to my C: so that the default 'C:/temp' would work. However it gives CANNOT_OPEN_DIRECTORY. I tried updating to 'C:\temp' with the same result. Any help would be greatly appreciated!
Last updated: 2024-02-14

Post by sumit on Not able to see input data coming from eip adapter on codesys ^{CODESYS Forge talk (Post)}
Hello there, I have an eip adapter running (remotely) that is sending data back to eip scanner (running on codesys). I can send data from scanner (codesys) to the adapter but not getting the data back from the adapter. I have verified the incoming data on wireshark but I don't see this data in the codesys. I have tried local variable mapping and global variable mapping not variable values just stays at 0. Please guide.
Last updated: 2024-02-29

Post by timvh on IFM CR711S Version Mismatch ^{CODESYS Forge talk (Post)}
You should ask IFM to provide you with the correct version of their controller packages. Then after you have installed this, you can select the correct version of the controller by right clicking on it in the device tree, update device, enable the option "Display all versions" and then select the version which matches your controller. Alternatively you can ask IFM to provide an update package which can update the runtime version on your controller to 3.2.0.0.
Last updated: 2024-03-05

Post by k4zz on Continuous Build Server ^{CODESYS Forge talk (Post)}
Hallo Martin, Thank you so much for the Code example. It works really fine for .porject Types. However, I encountered a challenge when attempting to apply it to .library Types. I also tried the option to "Perform static analysis automatically after compilation" # get Project values myProject = projects.primary # Creates an active application app = myProject.active_application # build Application and run static code analysis app.generate_code() Could you please offer any insights into why this might be occurring?
Last updated: 2024-03-15

Post by ofey on EtherCAT fieldbus ^{CODESYS Forge talk (Post)}
Okey, thank you! Do you think it is something in this library, that makes it possible to do the configuration in a PRG? https://content.helpme-codesys.com/en/libs/IODrvEtherCATDriver/Current/IoDrvEtherCAT.html#id1 I think the codesys modbus libraries support configuration and connection to modbus slaves without having to add the slave devices in the device tree. Just do it from function blocks inside the program. I was hoping for something similar with EtherCAT.
Last updated: 2024-04-10

Post by syjoo on Recipe Manager in PRG (3.05.13.XX) ^{CODESYS Forge talk (Post)}
I'm using version 3.5.13. Is it possible to handle Recipe Manager in PRG in this environment? Can you give me a simple example? Although it has been confirmed that the functions work on Recipe Manager, they do not work properly when implemented through FB within a simple PRG. I would like to save the current value as a recipe or load the recipe's value as the current value. And I want to save the recipe as a file or load the recipe saved as a file. somebody help me. (TT)
Last updated: 2024-04-15

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