When running as a service, CodesysControl doesn't write log files to the disk (and other CmpLog related issuess) ^{CODESYS Forge talk (Thread)}
When running as a service, CodesysControl doesn't write log files to the disk (and other CmpLog related issuess)
Last updated: 2025-03-06

Post by ph0010421 on Axis EtherCAT address ^{CODESYS Forge talk (Post)}
Hello SDO will write to the drive, not the axis, so you need to pass in the ethercat slave: VAR_IN_OUT Axis: IoDrvEthercatLib.ETCSlave; END_VAR Then you can get the address with: Axis.PhysSlaveAddr (as UINT)
Last updated: 2025-03-07

Post by timvh on an not create Symbol Configuration in Codesys V3.5 SP20 Patch 4 ^{CODESYS Forge talk (Post)}
Go to the menu Tools - CODESYS Installer. Here you can manage your add-on packages. Go to Browse, find CODESYS Communication and install this add-on.
Last updated: 2025-03-08

[Bug report] Issue with Importing XML Files Containing "POINTER TO" Variables in Codesys Platform Plugins Versions 2.7 and 2.8 ^{CODESYS Forge talk (Thread)}
[Bug report] Issue with Importing XML Files Containing "POINTER TO" Variables in Codesys Platform Plugins Versions 2.7 and 2.8
Last updated: 2025-03-26

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 timvh on Import from XML problem ^{CODESYS Forge talk (Post)}
It is not an error, but just an information message. You need to select the correct location in your device tree where you want to import the objects. E.g. select Application below your Device.
Last updated: 2025-04-30

Post by abuckie on i2c master not running ^{CODESYS Forge talk (Post)}
Hello, I am trying to create an Ethernet/IP device that can read analog signals, do some basic logic on it and then hand communicate the results to an Ethernet/IP master. I am using the Raspberry Pi to experiment with this as I would ultimately like to drive a display as well. I have loaded up the runtime on the Pi and got the digital I/O working. I have an ADS1115 ADC to I2C board and I can't get it to work, I get a message telling me the i2c master is not running and I am not sure where to start with this. Is there a manual for running CODESYS on the Pi or something like that I am missing? I found this post and opening the project in CODESYS V3.5 SP21 it seems like tons of this wouldn't convert properly https://forge.codesys.com/forge/talk/Runtime/thread/f1400b71b6/ I have added in the library and device manually and copied the structured text program but lost at what to do if the core functionality of the master is not running. I appreciate any help, thanks.
Last updated: 2025-05-19

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 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 gvdb on Raspberry Pi 4 mod B icm codesys linking USB serial device (arduino) to com port ^{CODESYS Forge talk (Post)}
Raspberry Pi 4 Codesys 3.5.20 sp3 Codesyscontrol 4.15.0.0 based on sdk 3.5.21.0 Hi all, I have found a lot of topics but none of them get me on the right path, therfore i started a new post. Usually i work with plc based systems and codesys but now im trying to create an project where i read out a serial data stream from an arduino connected by an USB port. in the future this need to be more arduino's but first trying to make it work with one I had my program working but i needed to update my raspberry pu to the letest version to get the mimo screen working. Now i tried several rules in the CODESYSControl.cfg and/or CODESYSControl_User.cfg files but i never get the com port opened. At this moment i have an file CODESYSControl_User.cfg with entry: [SysCom] Linux.Devicefile.1=/dev/ttyUSB0 I tested the connection with minicom and the data runs fluently. Can somebody help me with what could be wrong? the com port states ERROR_UNKNOWN 5004 when i tried to open.
Last updated: 2025-07-17

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

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