Post by kio123 on SysFileOpen not working ^{CODESYS Forge talk (Post)}
I have exactly the same problem and tried entering “ForceIecFilePath=0” in the file “CODESYSControl.cfg” ([SysFile]). Unfortunately, this was unsuccessful. Can anyone help in the meantime, e.g., with some sample code or with the FAQ that TimvH refers to above (link no longer works)? Many thanks and best regards
Last updated: 2025-09-15

Post by felixal on Codesys automatic Data transfer to USB on rasberry pi ^{CODESYS Forge talk (Post)}
Hi all, I am currently working on a project where I need to save data automatically on many diffrent USB-Sticks, which are always plugged in the same USB-Port on a Rasberry PI, but I do not get how I can automatically detect the USB devices Folder Name and save a file there on Linux. Thanks!
Last updated: 2024-01-03

Post by spiessli on Softmotion axis to CANopen Maxon IDX drive ^{CODESYS Forge talk (Post)}
Just verified the behaviour. Still is the same. It should be attached here. But I also tried the DCF-file with the axis in the lab with the real drive: The MC_Power block never goes out of busy. Had not time to investigate further, though.
Last updated: 2024-01-08

Post by rkohser on Python Script for Finding "Last saved with" Value ^{CODESYS Forge talk (Post)}
Hi jkilburn, I have the exact same issue and thought I would search a solution on this forum. I see you did not get any answer, did you find a solution on how to extract the last saved version of codesys from the project file ? Roland
Last updated: 2024-01-29

Post by durstloescher on Library Documentation DocScripting ^{CODESYS Forge talk (Post)}
Hi, I am currently creating a documentation for our library with DocScripting. In the process, I noticed that Visu images are created before the merge and transform, i.e. "screenshots" of the different Visus. Unfortunately, these are not used in the later process (Merge/Transform). Is there a way to set it up so that they are found in the html file?
Last updated: 2024-02-19

Post by timvh on when going online, stuck on "Syncing file "visuelemsdatetime.tl_datetime.txt" ^{CODESYS Forge talk (Post)}
I don't know the root cause... But what could help to continue when it seems to hang, is stop the CODESYS (communication) Gateway. Go to the Windows SysTray, find the icon for the Gateway and then stop it and start it again. This will interrupt the connection between CODESYS and your controller.
Last updated: 2024-03-05

Post by nano on Error building Extension SDK Linux code ^{CODESYS Forge talk (Post)}
Hey schnepper, when i look into your c-file, i would say that only the main-function is declared with cext-addendum in your codesys-library-project. all yöur funtions in library has to be the cext-addendum when the external implementation is activ. if i remeber right, methods and other subelements dont need that, but every base-elements
Last updated: 2024-04-02

Post by danwoodlock on Rpi zero w lost license after 4.11 update ^{CODESYS Forge talk (Post)}
Just adding some info: Today I found this post: https://forge.codesys.com/forge/talk/Runtime/thread/264bd530d4/ followed the steps suggested started with a fresh install of raspbian lite, installed 4.11, and then attempted to import my license update file. I get this when I do: Any help is appreciated.
Last updated: 2024-04-15

Post by k2saki on How to define CONDITIONAL PRAGMA that effects all ST-POU in project. ^{CODESYS Forge talk (Post)}
I'd like to use same code/project in different devices. (RPi, PLC) I change some lines in some POU before compiling. (array size, file path, etc ) My question is How to define pragma that effects all ST-POU in project. Is it possible ? I've read this. https://help.codesys.com/api-content/2/codesys/3.5.12.0/en/_cds_pragma_conditional/
Last updated: 2024-05-12

Post by kuegerls on CSV Utility SL ^{CODESYS Forge talk (Post)}
Hello, I want to read a CSV file using the CSV Utility SL library, but I encounter an 'invalid_handle' error during initialization. What could be the cause? For my test program see the screenshot. I have purchased a license, and it is also installed on my PLC. Thank you in advance. Best regards, Stefan.
Last updated: 2024-05-13

Post by mgengler on Recipe Manager - Not Creating Recipe Files ^{CODESYS Forge talk (Post)}
Thanks for info... However, I changed the directory to: C:\ProgramData\CODESYS\CODESYSControlWinV3x64\58719825\PlcLogic\Recipes It still displays the content of this folder OK, however still will not write or read files. Is this the PLCLogic area you speak of? I also tried adding this path the the CodesysControl.cfg file. But still can't get it to work. Any additional direction would be appreciated!
Last updated: 2024-05-20

Post by hismoon on Prüfen ob Datei existiert wenn nicht neu erstellen ^{CODESYS Forge talk (Post)}
Nur für die Nachwelt. Ja, Ressourcen wie Files sollte man optimalerweise nur aus 1 Task schreiben. Typischerweise nimmt man da eine nieder-priore, die sich um solche langsamen File- oder Logging-Geschichten kümmert. Dann gibt es auch keine Synchronisations-Probleme. Aus mehreren Tasks das zu tun braucht eben diese Synchronisation. Sonst passieren schlimme Dinge.
Last updated: 2024-06-04

Post by kporter on SoftMotion, accessing PDO input data via object ref/pointer ^{CODESYS Forge talk (Post)}
Now that SP21 is out, what's the answer? I want to get a pointer to the TxPDO and RxPDO structs. I can generate a STRUCT declaration from the ESI file with a bit of Python. I just need to get the pointer from the ETC_Slave.
Last updated: 2025-10-29

Post by kalmeyer on Stepper motor control with (SM_Drive_RaspStepper_direct) ^{CODESYS Forge talk (Post)}
I AM VERY GRATEFUL FOR YOUR HELP. I HAVE INSTALLED: CODESYS SOFTMOTION VER. 4.19.0.0 AS SEEN IN THE ATTACHED FILE. BUT IT DOESN'T CHANGE THE FACT THAT I GET 6 ERRORS WHEN I HAVE INSTALLED SM_Drive_RaspiStepper_Direct DO YOU HAVE ANY SUGGESTIONS ON WHAT I CAN DO NOW? /KLAUS
Last updated: 2025-11-10

Post by toby on Ethercat Servo Setup ^{CODESYS Forge talk (Post)}
Hi Everyone, I have a simple project with a single servo, but its my first time using Codesys and motion, so I'm a little confused and lost, I've tried to read the tutorial online, but I'm not having much luck sorry. Can I please ask for some pointers. I have a ComfilePi HMI (Raspberry Pi) communicating to a Omron R88D-1SN08H-ECT amplifier. Please see the attached project file (which is better for sharing, the project file, or a archive?). This file was simply for testing the motion of the servo before anything else is tested with it. The project simply rotates the servo 1 rotation when called for, but the speed can vary based on user input. Nothing much fancy. As yet, I haven't had any servo movement, no errors on the amplifier display. How do I link the motion FBs to the physical drive? Thank you very much for any help you can offer. I'm sorry if I'm doing something very stupid or basic and getting it wrong. Have a good day. Toby
Last updated: 2023-09-20

Post by manuknecht on Persistence Manager does not save alphabetically first value ^{CODESYS Forge talk (Post)}
I have several libraries which contain values that should be saved on a PLC. As apparently no Persistent Variable List is available within Libraries, I use the Persistence Manager to create a Persistence Channel in the Project which imports the library. I then specify the persistence channel in the library using the {attribute 'ac_persist':='PersistenceChannel_CT'} specifier. This generally works very well and gives me exactly the properties I require. However, it came to my attention that the (alphabetially) first value from the library is not saved in the created ASCII file. When checking the content of the Persistence Channel, it shows all the variables as defined in the library. But the created file does not contain the first value and it is not restored after restart or reset. (see attached picture) I disabled Periodic Saving and set xSaveOnChange to TRUE and so the file usually updates immediately after changing one of the values. When changing the first value, it does not update which is consistent with this value not being saved. I also created a sample project and library from scratch which shows the same issue both using a Raspberry Pi and using a Linux machine. Does someone know what the reason for this could be or did someone make similar experiences? Looking forward to hearing your suggestions. Thanks in advance and best wishes Manuel
Last updated: 2023-10-17

Post by breiter on Frustration-Fueled Feedback on Project File Management and Git Integration ^{CODESYS Forge talk (Post)}
Hi, supporting a text based storage format is on our roadmap, see https://www.codesys.com/the-system/releases-updates-lifecycle/release-plan-roadmap.html It will be an Add-On feature called "File Based Storage" for the professional developer edition. Structured text POUs will be stored as plain text. Other graphical languages will remain in an xml format. You will be able to switch the storage type for projects. Certain workflows will become easier this way. Nevertheless restrictions will remain because of CODESYS specific storage logic (for example how methods below function blocks are stored as file). So merging using our Git Integration Add-On remains the recommended workflow. A workflow involving Visual Studio Code as the main IDE is not supported. Simply because many topics like library management, task configuration or fieldbus configurators are not available for VS Code. A PLC project is a lot more than just some ST POUs. Best Regards
Last updated: 2024-10-16

Post by peterkcontrols on TargetVisu started in windowed or not full screen ^{CODESYS Forge talk (Post)}
Thanks for the response. I have found this file in two places, I have updated the text in both but it didnt work. Am I missing something on the Codesys side. How do you restart the soft plc, I have been stopping it and starting it. The Visu screen come up but still in full screen mode. Here are the two locations of this file: C:\Program Files\Codesys Control\GatewayPLC\AppDataFiles\CODESYSControlWinV3x64 and C:\Program Files\CODESYS 3.5.20.50\GatewayPLC\AppDataFiles\CODESYSControlWinV3x64 Here is the contents of targetvisuextern.cfg [ComponentManager] [CmpTargetVisu] ; The Window... settings can be used for displaying the targetvisualization in a window instead of fullscreen WindowType=0 WindowPositionX=0 WindowPositionY=0 WindowSizeWidth=1024 WindowSizeHeight=768 HideCursorCompletely=1 [SysWindow] ;Windows.CloseOnAltF4=0 ;Windows.CloseOnWM_CLOSE=0 [CmpLog] ;Logger.0.Name=TvExtLogger ;Logger.0.Enable=1 ;Logger.0.MaxEntries=1000 ;Logger.0.MaxFileSize=5000 ;Logger.0.MaxFiles=3 ;Logger.0.Backend.0.ClassId=0x0000010B ;sends logger messages to SysOut ;Logger.0.Backend.1.ClassId=0x00000104 ;writes logger messages in a file ;Logger.0.Backend.2.ClassId=0x00000135 ;sends logger messages as UDP syslog
Last updated: 2025-02-26

Post by pernockham on Engineering IDE from linux? ^{CODESYS Forge talk (Post)}
I have done the switch (linux mint, virtual windows through QEMU/KVM) now and is generally pleased. Have had problems in two areas initially. To bridge IP to the Virtual unit (solved), I overthought things initially. Solution. Configure manually a bridge in the mint-"network connections". Use that bridge in the Qemu settings as "Bridge device", "Device name": "name of the configured bridge" Figure out where to store the projects. I started out have the data in linux world (sort of) and linking it the windows with "virtio-fs". That had some serious impact though on git-handling. It seems that virtio-fs interpreted any file-path as lowercase only even if there were uppercase, resulting in git not able to sync files between its repository and the source code (it created a new file-path for me with only lowercase). Then I switch to samba-share instead and this works much better, though (git-actions) is a part that still has low performance with lots of waiting for file-actions. What should be the best way of handling the source/git? Edit to answer myself: Save the project "locally" in windows, then a lot of slow performance is avoided. Then a git-remote sync for backup.
Last updated: 2025-05-08

Post by mondinmr on Frustration-Fueled Feedback on Project File Management and Git Integration ^{CODESYS Forge talk (Post)}
Good day, I’m writing this message out of frustration regarding the current way project files are saved as encrypted XML and single-file format in CODESYS. I find this approach to be quite tedious for several reasons: Limited Access to Structured Text: Not being able to access Structured Text (ST) externally makes it impossible to work with alternative editors like VSCode. Tools like VSCode are incredibly responsive and feature advanced systems such as GitHub Copilot, which would be a real game-changer when working with ST IEC. While CODESYS works well for small code snippets or debugging, when the codebase grows, switching to VSCode to boost productivity becomes essential, and copy-pasting between environments is a cumbersome workaround. Poor Integration with Git: This file format also makes it very difficult to integrate effectively with Git. I have tested the internal demo, but for advanced merges, it is unusable. Without properly formatted plain text, it’s impossible to leverage the vast ecosystem of external tools around Git that allow smooth merges in heterogeneous teams. File Corruption on Network Drives: I often work from multiple locations with shared network drives. When the development environment saves a file and something goes wrong midway (which can occasionally happen when using VPNs and network drives), the entire project becomes irrecoverable. There’s no way to cancel the save process, and the development environment freezes. This has happened to me at least four times over the past two weeks, and one of those incidents cost me an entire day of work. All of this is particularly disappointing because I truly believe that the libraries, runtime, and overall work done by CODESYS are exceptional. I find it fantastic that there is a platform allowing development of PLCs and control systems using OOP, which is a huge advantage in modern control engineering. I apologize for the rant, but this issue has been extremely frustrating. Best regards.
Last updated: 2024-10-15

Post by darko7417 on When running as a service, CodesysControl doesn't write log files to the disk (and other CmpLog related issuess) ^{CODESYS Forge talk (Post)}
I run CODESYS runtime as a service and use CmpLog (the LogAdd2 function) to log different events to a file. I have done this many times before on various projects and hardware, and it works fine. On this particular system, I have CODESYS 3.5.20.40 running on a Windows 11 PC. The CODESYSControlService autostarts (with Local System credentials, the default), and the application runs fine. However, the configuration file is not read (or at least not the one that should be, or not the CmpLog section), and log files are not written to the disk. I would be thankful if anyone knew why this is happening and how to fix it. A note to CODESYS people: you must provide more information on the codesys configuration file, CODESYSControlService.exe and other major components and system behaviour. You created the service and various features (i.e. logging), but haven't explained how they work, which, in my opinion, is below standard for industrial automation software. These are my observations: - When running as a service, the config file is not read (none of them), or at least the CmpLog section is not read. I checked the log using Codesys IDE, and the CmpLog parameters are not the ones I have set in any of the config files. Which CmpLog config values does the service use, and where does it read them from? I have no idea, but it's not the config files. Here are the codesys config files I located on the PC's disk: o C:\Program Files (x86)\CODESYS 3.5.20.40\GatewayPLC\CODESYSControl.cfg (only 2 lines in this config) o C:\Program Files (x86)\CODESYS 3.5.20.40\GatewayPLC\AppDataFiles\CODESYSControlWinV3\CODESYSControl.cfg o C:\Users\SRV\AppData\Roaming\CODESYS\CODESYSControlWinV3\C4DBB537\CODESYSControl.cfg o C:\Program Files (x86)\CODESYS 3.5.20.40\GatewayPLC\tempCFG\CODESYSControl.cfg - When I run codesys as an app (e.g. by clicking the icon), this config file is read C:\Users\SRV\AppData\Roaming\CODESYS\CODESYSControlWinV3\C4DBB537\CODESYSControl.cfg and log files are written ok. The icon target is "C:\Program Files (x86)\CODESYS 3.5.20.40\GatewayPLC\CODESYSControlService.exe" -d o the -d option, I think, starts a cmd-like window showing service debug output (the output shown in log in the IDE) o the -i option, again I think, means install the service - I tried adding -d to service start parameters in the registry, but it started only once and after that it refused to start. Knowing what -d does and which other options are available would be great (e.g. can I make the service read a different config file). - Syslog UDP logging works fine in any case. - These are my CmpLog parameters ~~~ [CmpLog] Logger.0.Name=PlcLog3 Logger.0.Filter=0xFFFFFFFF Logger.0.Enable=1 Logger.0.MaxEntries=10003 Logger.0.MaxFileSize=50003 Logger.0.MaxFiles=33 Logger.0.Backend.0.ClassId=0x0000010B ;sends logger messages to SysOut Logger.0.Backend.1.ClassId=0x00000104 ;writes logger messages in a file Logger.0.Backend.2.ClassId=0x00000135 ;sends logger messages as UDP syslog Logger.0.Type=0x314 ;Set the timestamp to RTC ~~~
Last updated: 2025-02-27

Post by mondinmr on Jitter problems on imx8 ^{CODESYS Forge talk (Post)}
SOLVED!!! In this imx8 max_cstate=1 in kernel boot parameters is not working! We found a workaround: #include <stdio.h> #include <fcntl.h> #include <unistd.h> #include <stdint.h> int main(void) { int fd; uint32_t value = 0; fd = open("/dev/cpu_dma_latency", O_WRONLY); if (fd < 0) { perror("Error opening /dev/cpu_dma_latency"); return 1; } if (write(fd, &value, sizeof(value)) != sizeof(value)) { perror("Error writing to /dev/cpu_dma_latency"); close(fd); return 1; } while (1) { pause(); } } This simple code launched before CODESYS do the same work! Now jitter is identical as measured by cyclictest!
Last updated: 2023-10-19

Post by nikgind on Codesys Communication Manger - Required information model version exists in the model repository but is not found ^{CODESYS Forge talk (Post)}
Hi, yes i did solve it. You have to change the namespace 0 model in the UaModeler. Open the modeler --> Settings --> Edit Settings --> scroll down to the last option "External Model Support" --> Check "Allow replacing built-in..." Now create a new project in the UaModeler. If you have to choose your base models, you can see the option "Find another Opc.Ua.NodeSet2". I have attached the .xml i am using.
Last updated: 2024-06-28

Post by paulpotat on Can't open license manager with raspberry CM4 ^{CODESYS Forge talk (Post)}
Hello, I have a problem when opening the license manager for my raspberry pi (CM4 model) with runtime 4.13.0.0. I select "Device" --> "Soft Container" and click on my device in the scan window but I get this error message : Licensing info not available. There is no dongle attached to this device. I can't install licenses anymore, and I don't understand why is CodeSys looking for a dongle when I specified I wanted to use a Soft Container. Can somebody help me please ? Best regards
Last updated: 2024-10-04

Post by paulpotat on Can't open license manager with raspberry CM4 ^{CODESYS Forge talk (Post)}
Hello eschwellinger, Thanks for your answer, with this I was finally able to make it work by doing the following : install CODESYS Control for Linux ARM SL v4.13.0 uninstall CODESYS Control for Linux ARM SL v4.13.0 and make sure to select "yes" when prompted to uninstall WIBU CodeMeter Lite Runtime (v8.10.6230.501) re-install "CODESYS Control for Raspberry Pi SL" v4.13.0 It looks like the issue was probably related to the CodeMeter Runtime ? Best regards
Last updated: 2024-10-16

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