Post by mandeepahujaifm on Exception when OPCUA datasource disconnects from Server ^{CODESYS Forge talk (Post)}
@eschwellinger - We are experiencing the exact same issue. RunTime 3.5.19.70 and IDE V3.5 SP21. It's 100% reproducible. All you have to do is disconnect the network cable for about 10 minutes. OPC UA Crashes and requires a reboot to fix.
Last updated: 2025-03-28

Post by benemenn on OPC server in "Communication manager" ^{CODESYS Forge talk (Post)}
Same Issue here. If I understood correctly codesys plans to discontinue the classic SymbolConfigurations. But somehow, the CommunicationManager doesnt seem to support structures or arrays.
Last updated: 2025-03-31

Post by vincerex on SFTP access ^{CODESYS Forge talk (Post)}
hello everyone, is there a library or a way to access to SFTP server using Codesys? SysSocket library is only suitable for FTP it seems. I didn't find any other suggestion on the web Thanks for your help VinceReX
Last updated: 2025-04-01

Post by stribor on Passing properties as VAR_IN_OUT variables. ^{CODESYS Forge talk (Post)}
if i only use it as input variable I won't be able to update its state within the visu object. Lets say i have real value as a property, i would like the slider object to display this value and also modify it.
Last updated: 2025-04-30

Post by mariacugnier on Modbus TCP/IP having problems with global variables ^{CODESYS Forge talk (Post)}
Are these variables already declared in the IO list? It looks like it's trying to create new variables instead of mapping them to the existing ones.
Last updated: 2025-05-22

Post by andrax on Variable Length Array - Cannot mix variable and fixed length dimensions? ^{CODESYS Forge talk (Post)}
Arrays with variable lengths are a bad idea. This makes your system unstable and can lead to crashes. Declare your array large enough to reserve enough memory
Last updated: 2025-05-24

Post by canplum on Codesys 3.5.21 fails to copy file to USB ^{CODESYS Forge talk (Post)}
Hello Dave_t, thank you for your reply but the modifications of the config files are already done. Unfortunatealy with no success until now. Cheers, canplum
Last updated: 2025-05-26

Post by thomasfrank on TCP Server ^{CODESYS Forge talk (Post)}
You can use function blocks like TCPServer to start the Retro Bowl College server and TCPAccept to handle incoming connections, with CAA.Handle simply acting as a reference ID for each resource.
Last updated: 2025-06-03

Post by ph0010421 on Codesys running in Docker on Linux OS ^{CODESYS Forge talk (Post)}
Hello I need to make the Linux serial ports (ttymcx0, 1, 2 and 3) available to Codesys (Com1, 2...) Is there a guide? Is it something I do when I deploy the Codesys SL? thanks
Last updated: 2025-06-09

Post by matthewkim on Codesys Gateway not running ^{CODESYS Forge talk (Post)}
In my case, I used a different version of gateway. ex)3.5.18.5 sysTray gateway start did not work, so I terminated it and made it work with 3.5.18.3 in "codesys installer" "Settings" and was able to connect to the PLC.
Last updated: 2025-06-12

Post by matthewkim on Codesys Gateway not running ^{CODESYS Forge talk (Post)}
In my case, I used a different version of gateway. ex)3.5.18.5 sysTray gateway start did not work, so I terminated it and made it work with 3.5.18.3 in "codesys installer" "Settings" and was able to connect to the PLC.
Last updated: 2025-06-12

Post by matthewkim on Codesys Gateway not running ^{CODESYS Forge talk (Post)}
In my case, I used a different version of gateway. ex)3.5.18.5 sysTray gateway start did not work, so I terminated it and made it work with 3.5.18.3 in "codesys installer" "Settings" and was able to connect to the PLC.
Last updated: 2025-06-12

Post by tk096 on SMC_ReadNCFile2 is always busy ^{CODESYS Forge talk (Post)}
Hi, do you process the sentences subsequently? If not, the function block fills the sentences (queue) and waits for the sentences to be processed, so that new sentences can be read and filled to the queue.
Last updated: 2025-06-17

Post by milan-svarny on Redundancy problem - primary PLC suddenly goes to simulation state ^{CODESYS Forge talk (Post)}
Hi Ivanmaltar, please , did you solve the problem? i have the same case. Second PLC is going suddenly to Sim. state Thank you
Last updated: 2025-06-18

Post by ben1 on Login to Visu optional ^{CODESYS Forge talk (Post)}
It sounds like you are trying to use the device user management, but you can use the visu user management found in the Visu Manager for this.
Last updated: 2025-07-10

Post by bruceae on Allen Bradley to Codesys conversion ^{CODESYS Forge talk (Post)}
Hello Everyone, I was hoping to get some assistance or general directions on the codesys equivalent of some Studio 5000 commands and data types; Data Types; SCK_TCP Commands; CPS
Last updated: 2025-08-08

Post by jonasz on TargetVisu not accepting touch inputs ^{CODESYS Forge talk (Post)}
So, in my case, the solution is to uncheck the option to support client animation and overlay native elements. Visualisation Manager -> Settings -> General Settings
Last updated: 2025-08-19

Post by jonasz on TargetVisu not accepting touch inputs ^{CODESYS Forge talk (Post)}
This solution did not give me peace of mind, so I decided to check other options again, especially since artifacts appear on some controls in WebVis. The solution is to enable the Multitouch handling option in the additional settings tab.
Last updated: 2025-08-21

Post by wagokurt on CODESYS Visualization M License Fails to activate on Linux SL ^{CODESYS Forge talk (Post)}
I have successfully activated a CODESYS Control Performance M on a Linux IPC. When I try to activate the CODESYS Visualization M license it fails with this error. Any ideas? This is a WAGO 752-9401 FW4, running Debian 12.
Last updated: 2025-08-21

Post by wagokurt on CODESYS Visualization M License Fails to activate on Linux SL ^{CODESYS Forge talk (Post)}
This is what is on the device, is this correct? I did not see an option to install TargetVisu, is this needed?
Last updated: 2025-08-21

Post by timvh on Where to find the OPC-UA Information Model Repository ^{CODESYS Forge talk (Post)}
I'm not sure, but maybe you need to install or update the "CODESYS Communication" add-on through the CODESYS Installer.
Last updated: 2025-08-26

Post by gatto on Application-based license Modbus Channels ^{CODESYS Forge talk (Post)}
Hi Sandro, did you find any solution? I'm in version 3.5.20.40 and i have only one modbus channel. I don't want the problem to happen to me if I do an update one day.
Last updated: 2025-09-01

Post by eschwellinger on CODESYS control on RPi starts, shortly runs, then exits ^{CODESYS Forge talk (Post)}
in case you are using latest hw revision, there have been added some mac adresses - for the 4.17.0.0 release this might solve it. If not we need to investigate deeper. If it is application related you need to check the plclogger.
Last updated: 2025-09-02

Post by reinier-geers on JSON (WString format) accessing elements. Convert to STRUCT? ^{CODESYS Forge talk (Post)}
HI , Ill try the same with Energy prices. But no data I add the Query to the wsPost. Add $ because wstring use "as start end end. Here the link of the API info https://reversed.notion.site/Marktprijzen-API-89ce600a88ac4abe8c2ad89d3167a83e
Last updated: 2025-10-09

Post by reinier-geers on JSON (WString format) accessing elements. Convert to STRUCT? ^{CODESYS Forge talk (Post)}
HI , Ill try the same with Energy prices. But no data I add the Query to the wsPost. Add $ because wstring use "as start end end. Here the link of the API info https://reversed.notion.site/Marktprijzen-API-89ce600a88ac4abe8c2ad89d3167a83e
Last updated: 2025-10-09

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