Post by s1mon on Two OneWireMaster on one Raspberry PI 5 ^{CODESYS Forge talk (Post)}
yes sure. Thx for your support! This is the Codesys project stripped down only to my EtherCat and OneWire Configuration. The Project now contains only one OneWire Master on GPIO4.
Last updated: 2025-10-20

Post by jtebokkel on VAR_GENERIC unknown token ^{CODESYS Forge talk (Post)}
The help says VAR_GENERIC exists, but trying to use it in 3.5.21.30 results in a unknown token error. https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_vartypes_var_generic_constant.html Did this feature get removed or is there something else that needs to be done to enable using generic function blocks?
Last updated: 2025-10-21

Post by alimans on Unrecoverable SoftMotion state after switch to PreOp ^{CODESYS Forge talk (Post)}
Hi Kim, Hi eschwellinger, how you could solve the problem? I am using Codesys V3.5.19.60 and I still have the same problem. It will work only after a warm/cold restart. Thank you in advance for your kind help.
Last updated: 2025-10-22

Post by vtec35 on search runtime 4.9.0.0 for pi 3 ^{CODESYS Forge talk (Post)}
i have update the package 4.13 n the computer and install all update for all package, now impossible to start codesys... when i start to open any project i have a message invalid project...
Last updated: 2025-10-26

Post by jeroenaero on Difference between using OPCUA symbol configuration and OPCUA Server object ^{CODESYS Forge talk (Post)}
Hi, What is exactly the difference between using symbol configuration as OPCUA server or using the Codesys object OPCUA server? What are the advantages and disadvantages of using symbol configuration and OPCUA server object. Please let me know
Last updated: 2025-10-30

Post by eschwellinger on EtherCAT status errors ^{CODESYS Forge talk (Post)}
Setting IRQ priorities using shell commands irq-list and irq-set-prio for the network adapter which is used for Ethercat. This is here: https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_performance_optimization_linux.html
Last updated: 2025-11-25

Post by micik on Error, visualisation property handling, VISU_USEPROPERTYINFO ^{CODESYS Forge talk (Post)}
@davidking, can you be more specific about where exactly "Compiler Defines" is located. I'm using Codesys v3.5 SP21 Patch2 and cannot find this Compiler Defines option. In the menu Project -> Project Settings there are Compiler options and Compiler warnings, but that is not it.
Last updated: 2025-11-26

Post by mariusz997 on Visualisation - internal error ^{CODESYS Forge talk (Post)}
Hi - problem solved. I had 3 version of codesys on system and they didn't like each other. After uninstall all and install again only one version now everything is OK
Last updated: 2025-11-12

Post by emmieturner on Which Lib to use, connect to a socket with URL instead of IP address ^{CODESYS Forge talk (Post)}
hi, maybe Net Base Services https://forge.codesys.com/prj/codesys-example/nbs/home/Home/ https://geometrydashlite.online Thank for sharing
Last updated: 2025-11-16

Post by davidbo on *EXCEPTION* [ProsessorLoadWatchdog] codesys 3.5.11.40 ^{CODESYS Forge talk (Post)}
Under Application->"Task Configuration" you can find your task double click on that and you will see a fane to the right. You find the watchdog enable switch it off or increase the time
Last updated: 2025-11-17

Post by tristan on Textfield display problem ^{CODESYS Forge talk (Post)}
Hello Tim, I am using CODESYS Visu V4.8.1.0. It works when I turn off the "Support client animation and overlay of native elements". But if I do that, dialog box moving and other options are also disabled so it is a bit problematic. Thank you for helping.
Last updated: 2025-11-27

Post by somlioy on Non-formal invocation of function blocks in CODESYS ^{CODESYS Forge talk (Post)}
No that is not possible for function blocks, although it is possible to that with methods and functions as you see in your second pic.
Last updated: 1 day ago

Post by damian177 on Codesys V3.5 + Pixtend v1.3 + RaspberryPi ^{CODESYS Forge talk (Post)}
Hi, I use Pixtend v1.3 with my RaspberryPi with Codesys V3.5 SP15 Patch1. Actually in my project I used two packages: - CODESYS Contro for Raspberry PI 3.5.15.10 - PiXtend for CODESYS 1.3.8.0 Now I would like to extend my project about the IIot Libraries SL package, I installed them. Next I added SMS_Service_SL 1.0.0.8 version library and I have problem with compile my project because I get error: [ERROR] PiXtend_DemoProject_q: Library Manager [Device: PLC Logic: Application]: Could not open library '#CAADTUtil'. (Reason: The placeholder library 'CAADTUtil' could not be resolved.) Any have idea what can I do to properly add SMS library to my project?
Last updated: 2023-09-26

Post by janber0206 on Gateway doesn't come online, regarding a working internet connection ^{CODESYS Forge talk (Post)}
Solved (see comment) Setup: Kunbus RevPi Connect+ (a raspberry based PLC) Codesys runtime package: 4.5.0.0 (raspberry, armhf) based on Codesys V3.5.18.20 Edge Gateway: 4.5.0.0 (edgearmhf,armhf) EN: The edge-gateway was added over a year ago to the automation server. I now need to make a few changes to the Codesys software, but the Pi is not showing as online in the Automation Server. Internet connection is established, I have remote access to the Pi via RealVNC. Anyone have an idea how I can solve this? Some screenshots added. DE: Ich muss nun ein paar Änderungen an der Codesys-Software vornehmen, aber der Pi wird im Automation Server nicht als online angezeigt. Die Internetverbindung ist hergestellt, ich habe über RealVNC Fernzugriff auf den Pi. Hat jemand eine Idee, wie ich das Problem lösen kann?
Last updated: 2023-10-26

Post by dhumphries on install codesys runtime on linux ^{CODESYS Forge talk (Post)}
I'm running the 3.5.18.20 IDE, installed the control for linux SL package from the installer. Following the directions here: https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_install_runtime_on_controller.html it says: Installing the runtime package with CODESYS on the Linux device Click Tools → Update CODESYS Control for <device> SL.</device> I don't have the update option in my tools menu. I've tried it without opening a project, as well as with a project open that uses the control for linux SL as a device. I have found the update device option by right clicking on the device in the device tree, but this only lets me change the device the project is using not load the runtime on the linux computer. Is there an updated instruction somewhere, or do I need to do some further preparation like install additional packages?
Last updated: 2023-11-04

Post by appling on License status of Linux 64Bit runtime via CLI ^{CODESYS Forge talk (Post)}
Hi, I have a Linux 64Bit system with a Codesys application running on it. It stops after 2hours and a few minutes, which makes me think something is wrong with the installed license. (in my last timing it stopped after 2h4min, on the codesys website it is stated that runtimes without a license stop after 2h) I installed the license via a USB license dongle that I activated on my workstation with the Codesys IDE a while ago. Now the system is shipped at not accessible physically, only remotely via SSH. So is there a way to check the status of the License of the Codesys runtime when it is running on the system? Running the codesyscontrol script with "status" just tells me that it is running, but does not provide any license information. Best regards
Last updated: 2023-12-04

Post by andre-luis on Check if Codesys runtime is on 'Running' or 'Stopped' state? ^{CODESYS Forge talk (Post)}
Hi there, I'm running the Codesys runtime on Windows 64 and I need to know if it is on "Running" or "Stopped" state just after a system crash. The following commands works perfectly well to (re)start it... net stop “CODESYS Control Win V3 - x64" net start “CODESYS Control Win V3 - x64" ...however I'm unable to determine when it is required to be call; I mean, by checking the System Tray icon, it is possible to know if it is on "Stopped" state, but I wanted to run a .BAT command to retrieve it. How can we do that?
Last updated: 2024-07-02

Post by fredruel on ModbusServer became unreachable if reach maximum of 16 byClientConnections ^{CODESYS Forge talk (Post)}
Hello Fraziersedge, the solution of Codesys might be to update your codesys to the lastest version but it was not possible for us. In our Codesys V3.5 SP9 patch 8 I was able to fix this bug. I change my ModbusTCP slave component version or one of the sub component version (ex: SysSocket). Look at the picture in attachement that's the receipe that have work for us. When I got the bug my version of ModbusTCP slave was 3.5.5.0 with SysSocket at 3.5.6.0 and I change to ModbusTCP slave 3.5.14.0 with same version 3.5.14.0 of SysSocket event if I still use codesys V3.5 SP9 patch 8.
Last updated: 2024-08-27

Post by bjarne-pagaard on OPC UA Server Status on Win RTE ^{CODESYS Forge talk (Post)}
Hi there, An "OPC Expert" client software is connecting to a Codesys Control RTE (x64) OPC UA Server. It reads only about 25 variables every 5 minutes. The OPC UA Server seems to shut down on the Codesys runtime. Is there any way to get information about the Codesys OPC UA Server status? Restart it? There is nothing in the PLC Logs after the OPC UA Server has started. It works for a while, then it doesn't. Any ideas? Any way of getting more info out of the Codesys OPC UA Server? -Bjarne
Last updated: 2024-10-21

Post by xabier on BUG CODESYS-NO WORK AUTOMATICALLY RESTARSLAVES ^{CODESYS Forge talk (Post)}
I detect a Bug of Codesys....NO WORK AUTOMATICALLY RESTARSLAVES. I explain the secuence: I have click in my project the option AUTOMATICALLY RESTARSLAVES In the moment start my Ipc, the network ethercat start correctly I disconnect the wire of my first slave and later connect again the wire..(see the screen Bug Codesys restart slave1) NO work the restart automatic slaves...and is not possible execute of FB MC_REset beacuause appear this error (see the screen Bug Codesys restart slave2) The only way for resolver this problem is execute the FB SMC3ReinitDrive I replay the same with PLC BECKHOFF in Twincat3 and I havent this problem...In the moment connect the wire again in the slave the comunication of ehterCat restart and the slave comunication again with out problem
Last updated: 2024-11-07

Post by gatto on CAA File open Problems ^{CODESYS Forge talk (Post)}
Ciao, here same question https://forge.codesys.com/forge/talk/Engineering/thread/2538729618/ in this post https://forge.codesys.com/forge/talk/Engineering/thread/4586a90290/?limit=25#d531 i find : keep in mind that all files which are generated / or read should be exist in the iecfilepath this means: for Windows (Control Win as example) c:\ProgramData\CODESYS\CODESYSControlWinV3x64\268E8ADF\PlcLogic for Linux /var/opt/codesys/PlcLogic I never use codesys on windows but im sure on linux we can manipulate file only inside /var/opt/codesys/Plc Logic. Or you need to modify the file codesyscontrol.cfg for change path permission, but this is another history Buone feste !
Last updated: 2024-12-21

Post by sigurdrb on Read codesys version in the codesys application ^{CODESYS Forge talk (Post)}
Hi! I want to read the codesys version into the project, so I can highlight it in the SCADA system. VAR dwVersion : DWORD; END_VAR SysTarget.SysTargetGetVersion(pulVersion := ADR(dwVersion)); This gives me the value 100859909. I tried to search ths up and found som older post (https://forge.codesys.com/forge/talk/Runtime/thread/a55981ff4d/) that said each 4 bytes reads a number in the version. Example is 50662666 = 16#03050D0A which reads to V3.5.13.10 When I run this code I get the value 100859909, which I cant translate to anything meaningful. I am running it on Codesys V3.5.19.70. Help appreciated!
Last updated: 2025-01-17

Post by janber0206 on Adding PLC to the List view resolves in Unknown Error ^{CODESYS Forge talk (Post)}
Problem Solved The Problem was within the Usermanagment. There should be 6 files for the Usermanagment in /var/opt/codesys/ .UserMgmtDB.csv .UserMgmRightstDB.csv .GroupDatabase.csv .UserDatabase.csv_ .GroupDatabase.csv_ .UserDatabase.csv The file .UserMgmtDB.csv was missing. I moved the other files in a savefolder. Full Step by step instructions stop the runtime with sudo /etc/init.d/codesyscontrol stop rename the following files on the PI: (or save them and then delete them) in this directory: /var/opt/codesys/ .UserMgmtDB.csv .UserMgmRightstDB.csv .GroupDatabase.csv .UserDatabase.csv_ .GroupDatabase.csv_ .UserDatabase.csv then restart the Runtime: sudo /etc/init.d/codesyscontrol start now reconnect the PLC via the Automation Server - here you will be asked to create a new CODESYS user password, The user management files deleted above are then created again (in /var/opt/codesys/ on the PI).
Last updated: 2025-02-24

Post by matthew on High resolution displays with 150% scaling causes CodeSys IDE to be blurry ^{CODESYS Forge talk (Post)}
I have just upgraded my laptop which has a high res display 2560x1600 and I have to have scaling switch on at 150% but everything looks blurry and not crisp, It seems CodeSys IDE is the only software on my system to look this bad, if I switch to 100% it's crisp but way to small. From a bit of research this could be due to the use of old windows forms or something? I have found a temp workaround that sort of works but not great. You have to run CodeSys in compatibility mode and adjust the DPI settings, this works ok and the editor is clear and crisp again but the actual tool bars are small like running at 100% Anyone got any tips for running CodeSys on high res displays with scaling?
Last updated: 2025-03-03

Post by s1mon on Two OneWireMaster on one Raspberry PI 5 ^{CODESYS Forge talk (Post)}
Hi, I want to use two OneWireMaster on a Raspberry Pi5. I'm running Codesys Control for Raspberry Pi 64SL V 4.15.0.0. Under Linux I've configured two GPIOs for 1w bus usage on GPIO4 and GPIO27. Under Linux both masters seem to work fine and I can readout both sensors connected to both GPIOs. The two masters are 'w1_bus_master1' and 'w1_bus_master2'. In Codesys I've configured to OneWireMasters with the corresponding file paths. But in Codesys the 2nd onewiremaster "w1_bus_master2" doesn't work. Status is showing "OnewireMaster : Not running" What am I doing wrong? Does Codesys on Raspberry support multiple OneWireMasters? Any help is appreciated.
Last updated: 2025-06-10

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