Post by cihangur on Application has invalid license metrics. ^{CODESYS Forge talk (Post)}
Hi, I have a "CODESYS Control Standard L" license and I use Ethercat and Profinet in my project. The project works seamlessly with two fieldbuses. However, when I add modbus_Com (Serial) or 1 OPC Tag to the project, the program throws an exception (Application app=Application has invalid license metrics!). My license should support 10*Modbus and 512 OPC Tags. Why might this problem occur?
Last updated: 2024-03-25

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 kimnegw on Codesys offline license batch ^{CODESYS Forge talk (Post)}
Hey guys, I'm currently developing a Codesys application for an offline Linux device. I can easily set up the license for ONE device using my Windows PC, but what happens if I need to produce a thousand devices? Is there any method to automate license insertion? I have already generated a dpkg installer for deploying the Linux control application to multiple targets. Thanks,
Last updated: 2024-04-04

Post by vincentd on Datasource OPC UA Client error ID:7012 ^{CODESYS Forge talk (Post)}
I have not used this client / server OPC UA combination since. We were only making some kind of proof of concept. I did understand that there could be some kind of bug. I do not know if the supposed bug has been resoved since. Perhaps you could try what piautomation is suggesting
Last updated: 2024-04-05

Post by dkugler on build (F11) / generate code using a python script file ^{CODESYS Forge talk (Post)}
After a project is opened and I have done some changes, I want to start the build or code generating process by a python script file. After the build is done I a Windows sound/beep should appear. Anyone has an example or hint how the .py file has to look like? Thanks!
Last updated: 2024-04-10

Post by thomaspfrimmer on Can't import enums OnlineChangeOption / ResetOption ^{CODESYS Forge talk (Post)}
Hello Jusito, Can you share your final code, please ? I tried to implement a similar feature (going online, doing the reset and the start). But I get a timeout on the reset/start when I'm testing the script. If you got something working, I would appreciate to see it.
Last updated: 2024-04-11

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 koehler on Codesys 3.5.12 Module not Found ^{CODESYS Forge talk (Post)}
Hi there, I am getting troubles with a project. In the Hardware configuration I got some Lenze drives 9400. One of them got as status " Module not Found". Connection are good. ID Node of the Canopen network is also good. I don't find any reason for this status, nor any options to check.
Last updated: 2024-04-17

Post by tomas111 on Black background when loading webvisu ^{CODESYS Forge talk (Post)}
Tell me, are there ways to remove the white background from the page loading? I want to change it to a black background. I think there are options with changing /home/codesys_root/PlcLogic/visu/webvisu.htm Perhaps you have already encountered a similar situation. I hope to find the answer to my question.
Last updated: 2024-04-17

Post by matthew on Persistence Manager Backup ^{CODESYS Forge talk (Post)}
Hi @eschwellinger How does the persistent manager files work on v20? I would Like to upgrade my v19 as I'm still having issues. Sometimes if there is a power cut CodeSys won't load the Persistence Manager files and I have to redownload to the PLC and then copy my backup persistent files and then start the application. I hope it's a lot more robust in v20
Last updated: 2024-04-23

Post by dhumphries on Rounding error in simple addition ^{CODESYS Forge talk (Post)}
I have discovered a rounding error, either in Codesys or in my understanding of numbers. The attached ladder shows that when the up button is pressed the number increases by 0.1, when the down button is pressed number decreases by 0.1, after several button presses the number isn't equally divisible by 0.1. Have I discovered a bug or am I doing something wrong?
Last updated: 2024-04-27

Post by k2saki on CNC / G01 Speed is very slow (or go-stop motion) in Continuous short segment . ^{CODESYS Forge talk (Post)}
Hi, gseidel. Thank you so much for your advice. I have created a program to preprocess G-code as follows 1.SMC_ReadNCFile2 2.SMC_Interpreter 3.SMC_CheckVelocities Then I put SMC_OUT_QUEUE in SMC_Interpolator. Where should I insert SMC_SmoothMerge and SMC_SmoothPath? Or are there any example link for it ?
Last updated: 2024-04-30

Post by mehmetembedded on Linux ARM64 SL, GPIO Access ^{CODESYS Forge talk (Post)}
Hello. I am using TI AM64x evaluation board TMDS64EVM. It has 8 leds connected via I2C to SoC.I wanna control them via codesys GPIO device. Is that possible? If so how I can do it. I had no problem installing codesys runtime, and running program on device. But when it comes to GPIO access, It couldn’t make it.
Last updated: 2024-05-08

Post by mehmetembedded on Linux ARM64 SL, GPIO Access ^{CODESYS Forge talk (Post)}
Hello. I am using TI AM64x evaluation board TMDS64EVM. It has 8 leds connected via I2C to SoC.I wanna control them via codesys GPIO device. Is that possible? If so how I can do it. I had no problem installing codesys runtime, and running program on device. But when it comes to GPIO access, It couldn’t make it.
Last updated: 2024-05-08

Post by rajesh008 on i can't declear the address in GVL - codesys SP19 Patch5 ^{CODESYS Forge talk (Post)}
The “_AB AT %IW0:word; ” if i called the value then im getting this error. like below "the declartion of the variable with an address assignment cannot be used in a PRG or GVL with the attribute 'subsequent'" This is happening when the GVL is selected in Redundancy Configuration. if i un-select the address declaration is working fine
Last updated: 2024-05-13

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 siscu on Raspberry Pi: List of available example applications ^{CODESYS Forge talk (Post)}
Could this be turned into a library? I'd love for a way to have the main program call a function block method using the program's I2C_master device. I assume I should be passing the master as a variable for the function block, but I don't see how that could be achieved
Last updated: 2024-05-15

Post by felipemsgarcia on Generic EtherCAT slave ^{CODESYS Forge talk (Post)}
Hello, Without much info, I would assume that this is an optional object on the EtherCAT network and it's either disconnected or the address doesn't match. I would look into the devices manual or contact the manufacturer for further assistance. And, I would have posted a new topic instead of using a non related one... Cheers!
Last updated: 2024-05-16

Post by vitorp on Visualization Toolbox in German ^{CODESYS Forge talk (Post)}
Hello, I am new to Codesys. I installed it on my computer and set the language to English. Most of the localized text appears in the correct language, but the Visualization Toolbox and the element properties are in German. I haven't found a way to change them to English. Can someone help me with this?
Last updated: 2024-06-17

Post by thieulam on Codesys access to DICTIONARY OBJECTS of ethercat (CoE ) Servo Drive ^{CODESYS Forge talk (Post)}
Hello to all! How can I read or write, via my main code (ST), to the registers present in the DO of my ethercat CoE servo drive? These objects appear in the list of the INITIALIZATION page, and from here I can only access them at startup. How do I access it in run time from my main PLC_PROGRAM?
Last updated: 2024-06-19

Post by gatto on variables between two applications ^{CODESYS Forge talk (Post)}
No. As you can see in the uploaded image, in my test project, I have a variable list GVL_1 which is located in appication_1. But if I write in POU_2, which is instead found in application 2, I cannot find the variables of GVL_1. it seems that the GVLs are children of each app
Last updated: 2024-06-24

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 totorovic on Project loses 'Download time' information ^{CODESYS Forge talk (Post)}
Thank you for your answer. The build > Generate Code start the code of the application but does not modify the compileinfo. I work with .projectarchive to avoid this kind of problem. I would like to have the possibility to modify the compileinfo by myself so I can indicate the losses information.
Last updated: 2025-10-30

Post by mg0815 on ERROR: Calling the program "AlarmStorage_Prg" is not allowed from multiple tasks ^{CODESYS Forge talk (Post)}
I use Codesys 3.5.21.1 too I have absolutelly the same fault. Do you know the solution? I get the same massages accept the last one (up to your's from 2025-08-03 04:38) The last messages do not appear. (your's later than 2025-08-03 04:40) Reagards Mg
Last updated: 2025-11-04

Post by eschwellinger on Deploy LicenseServer for Linux SL ^{CODESYS Forge talk (Post)}
As I see from your logs I think the Timeprovider is not accurate enough in your case. Things to check - at the moment you run it on the same device? (for tesing purpose ok) I would set 127.0.0.0 as IP and set it not really to Core 0 ( many other stuff is there)
Last updated: 2025-11-20

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