Post by aliazzz on Runtime licenses not detected => DEMO Mode 2hour ^{CODESYS Forge talk (Post)}
Hi! After upgrading all my licensed runtimes to V4.14.0.0 (= RaspberryPi SL, LinuxSL and ControlWin x64 SL) I found out via the logfiles they all defaulted back into DEMO mode while all runtimes have a USB dongle inserted. So, my main question is how I can get the Dongle license detected? I use License Server 4.14.0.0 and Edge Gateway 4.14.0.0 on all platforms Any suggestions are welcome.
Last updated: 2024-12-15

Post by seppi on Establishing communication between a Raspberry Pi 4 and an Arduino UNO R3 using I²C. ^{CODESYS Forge talk (Post)}
Hello everyone, I want to establish communication between my Arduino and my Raspberry Pi via I²C, but I have no idea how to make it work. However, it should work because there are many examples available, although none of them were programmed using Codesys, but rather using Python. My Raspberry Pi will be the master and is supposed to exchange measurement data such as speed and battery capacity with the slave (Arduino). I would be very grateful if someone could help me with my problem. Here is another link that could be helpful. However, I can't find the mentioned libraries
Last updated: 2023-12-03

Struggling to connect to EK1100 to Raspberry Pi ^{CODESYS Forge talk (Thread)}
Struggling to connect to EK1100 to Raspberry Pi
Last updated: 2025-03-30

Post by snhatton on CANopen Example: ^{CODESYS Forge talk (Post)}
Can you try the command "Download Missing Libraries"?
Last updated: 2023-09-21

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 shrikantp007 on help to get codesys understand ^{CODESYS Forge talk (Post)}
Hello , I need some help on how to start with , 1) how to get test license to test codesys , 2) how to take a configuration backup or running process back and post file on fourm so people can understand and deploy same file and get idea what is missing or configure wrong 3) where i can get pdf for codesys admin or programmer 4) what is hardware recommand ,i am running on windows guest on kvm server .is it ok ? 5) i am trying to get ardunio porject working ,using ardunio board as a modbus slave but its not working some how https://forge.codesys.com/forge/talk/Engineering/thread/bf832569b8/ Thanks in advance . shrikant pune -india
Last updated: 2024-07-22

Post by tyleretn on Codesys 3.5 SP18 P4 Freezing on Library Update ^{CODESYS Forge talk (Post)}
I have created a library with both code and visualizations to be used in multiple other projects. After I update the library version into the library repository, I have much difficulty updating the version into the main project. I can always update the library version in the Library Manager just fine. My issue, is sometimes Codesys will freeze when opening the visualization that uses the library visualizations. Sometimes it opens, but freezes when I try to access the library visualizations from the Visualization Toolbox. I try letting Codesys run for upwards of 4+ hours and it is stuck in this state. On very rare cases I have no issues and can continue with my work. I haven't found a consistent reason or work around. Has anyone else had this happen?
Last updated: 2025-02-27

Post by rickj on Defining local variables that can be independent with several users. ^{CODESYS Forge talk (Post)}
You need to create an array with one element for each possible user. I usually define these arrays in the root screen. FrameIndex : Array [0..MaxUsers] OF INT; Then use the global CurrentClientId (defined by one of the VISU libraries) to index the array element used to select the frame. FrameIndex[CurrentClientId]
Last updated: 2023-10-21

Post by micik on SysFileOpen not working ^{CODESYS Forge talk (Post)}
Hi, I have the same problem. Some of the libraries I created over time depend on writing files to a folders like c:\Temp. I can confirm that proposed solution is not working with 3.5.20 Patch 2. Can you please specify wich exactly .cfg file needs to be modified and in what way, in order to include c:\Temp in the SysFile path? Thank you!
Last updated: 2024-08-17

Post by tyronnosaurus on SysLibMem.lib Where To Download? ^{CODESYS Forge talk (Post)}
It should come by default on a normal install of Codesys 2.3, but it's a bit hidden: Like for any other library, go to Resources > library Manager > Right click on list of libraries > Additional library. On the browser that opens, instead of looking in the default folder, use the dropdown menu at the bottom to change the folder (SysLibMem should be on the 3rd folder).
Last updated: 2024-11-11

Post by timvh on CoDeSys v3.5: creating libraries for both 32-bit and 64-bit controllers ^{CODESYS Forge talk (Post)}
Yes, you are right. I think the help is pretty clear: https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_library_development.html It helps you to find errors in the source code of your library if you want to create a library which is using pointers and you want to use your library on 32 and/or 64 bit platforms.
Last updated: 2025-09-02

Post by matt-purcell on Which Lib to use, connect to a socket with URL instead of IP address ^{CODESYS Forge talk (Post)}
I've been searching through these libraries, syssocket and net base services and they all seem to use the same structure for IP address for the connect function, SOCKADDRESS. At a glance, it doesn't look like that'll work, maybe it's just missing in the documentation somewhere?? I'm wondering if anyone has done it.
Last updated: 2024-06-17

Post by mikek10 on Error IoDrvEthernetIP: Connection Failure. (16#1) How to solve ^{CODESYS Forge talk (Post)}
Make sure the number of bytes matches the values in the Ethernet/IP>Assembly Information section of the Wagos web management page (expand by clicking on the +). The EDS file will probably have defaulted to assemblies 101 and 104. If you want a different assembly there is an article that tells you how to modify but seems to be unavailable at the moment. An alternative is to modify the .eds file to change the default assemblies.
Last updated: 2024-07-22

Post by macros8 on Translation - How to get text as reference in Frames translated? ^{CODESYS Forge talk (Post)}
Hi, one more point. I have been able to create Property of Text which is added to Global text list so it´s fine. But as soon as I use Frame configuration I lose all other properties but some very basics. I need to have still possibility to set Input configuration because my element is Button. Do you know how to make visible all standard properties + my own properties created in Frame configuration? Thanks a lot. M.
Last updated: 2024-01-03

Post by davidbo on Two licenses have to be installed forgot to enable one license ^{CODESYS Forge talk (Post)}
I have to install "Basic M" and "Visualization M", but it seems that during installation of "Basic M" you have to enable "Visualization S" I assume if you here after want to install my "Visualization M". And I forgot to enable "Visualization S" How do I fix that?
Last updated: 2026-02-02

Post by trusty-squire on How to revert to previous version library ^{CODESYS Forge talk (Post)}
Hi, I'm experiencing a bug with the latest version of SoftMotion CNC library (4.17), where the 3DPath object in Visu is missing all the important properties. I've verified that a previous app I was working on with library version 4.16 did not have this issue and the issue is duplicated in that project when I update it to 4.17. I've already submitted a bug report, but for the time being I need to revert the project I'm currently working on back a revision. I've tried right clicking on the library but the option to select the version is greyed out. Can anyone help me?
Last updated: 2024-09-05

Post by transmin01 on CANbus issue ^{CODESYS Forge talk (Post)}
Hi, I have been trying to get a CANbus device working with Codesys 3.5SP19 patch1 via a Beckhoff EL6751 gateway without success. I have the CANOpen_Manager and CANopen device configured but this will not run. Is there any code required to kickstart the CANbus comms into action? Regards Trevor
Last updated: 2023-09-13

Post by pistola on Checking or changing objects dimensions using code. ^{CODESYS Forge talk (Post)}
That works, thanks, I was trying to get a variable into the Position>Height and was struggling, then I was using absolute movement, never though to try relative movement.
Last updated: 2024-11-19

Post by eschwellinger on OPC Da Server Code Meter Issues after Enabling License ^{CODESYS Forge talk (Post)}
it is mandatory to activate the OPC DA license into the 32-xxxxxx legacy container (not UFC) you need a remove ticket -> contact CODESYS store - my question to move the license
Last updated: 2024-05-03

Post by nano on How to access to variable value through symbolic string name ^{CODESYS Forge talk (Post)}
this is not easily. From Point of SL-Licenses Codesys didnt provide the informations how to do. We created an own CDS-Component for that Behaviour. This Informations are available for OEM, if you are an OEM you can find the Informations in the RTS-Documentation.
Last updated: 2024-06-14

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

How make SM_Drive_CAN_xxx device from EDS servo file ^{CODESYS Forge talk (Thread)}
How make SM_Drive_CAN_xxx device from EDS servo file
Last updated: 2017-12-14

How Could I SIMULATED My PLC_PRG Without Any Device ^{CODESYS Forge talk (Thread)}
How Could I SIMULATED My PLC_PRG Without Any Device
Last updated: 2023-06-30

How Could I Desactivated The Watchdog ? ^{CODESYS Forge talk (Thread)}
How Could I Desactivated The Watchdog ?
Last updated: 2024-08-13

EtherCAT Master: How many error frames till bus error ^{CODESYS Forge talk (Thread)}
EtherCAT Master: How many error frames till bus error
Last updated: 2024-12-03

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