Post by i-campbell on What does CODESYS expect to do when I get such an error message ^{CODESYS Forge talk (Post)}
you need to get the addons that the person that programmed it used. I always store an .installation-config file alongside the project. If you have lost that, then it gets a bit of a headache: I think even with SP18 you can hit yes to open it anyway, and it will suggest which addons it thinks are missing, if you double click the yellow "missing-addons" in the status bar. If you know you have the right addons, you can do a "Save As.." and it will write your current addon list to the file, and you wont get the error next time.
Last updated: 2024-01-08

[FATAL ERROR] Unresolved reference: 'USERMGRUSERGETPROPERTY' on Codesys 3.5 SP19 ^{CODESYS Forge talk (Thread)}
[FATAL ERROR] Unresolved reference: 'USERMGRUSERGETPROPERTY' on Codesys 3.5 SP19
Last updated: 2023-04-02

Missing documentation "API Reference Documentation for the ScriptEngine" ^{CODESYS Forge talk (Thread)}
Missing documentation "API Reference Documentation for the ScriptEngine"
Last updated: 2018-01-26

SoftPLC with Windows Control RTE - Unresolved reference(s) ^{CODESYS Forge talk (Thread)}
SoftPLC with Windows Control RTE - Unresolved reference(s)
Last updated: 2020-05-26

OOP: Change visualization and reference at runtime in program ST ^{CODESYS Forge talk (Thread)}
OOP: Change visualization and reference at runtime in program ST
Last updated: 2023-05-31

Why aren't FunctionBlocks passed by reference by default? ^{CODESYS Forge talk (Thread)}
Why aren't FunctionBlocks passed by reference by default?
Last updated: 2022-07-15

Pointer and reference behavour during online change ^{CODESYS Forge talk (Thread)}
Pointer and reference behavour during online change
Last updated: 2017-08-16

Properties that return Reference Types. What are the various Behaviors? ^{CODESYS Forge talk (Thread)}
Properties that return Reference Types. What are the various Behaviors?
Last updated: 2021-11-17

Python : API Reference Documentation for the ScriptEngine...where is now? ^{CODESYS Forge talk (Thread)}
Python : API Reference Documentation for the ScriptEngine...where is now?
Last updated: 2021-06-21

unresolved reference: IOMGRLOCKENTER IOMGRLOCKLEAVE at download (from virtual machine) ^{CODESYS Forge talk (Thread)}
unresolved reference: IOMGRLOCKENTER IOMGRLOCKLEAVE at download (from virtual machine)
Last updated: 2020-04-14

[FATAL ERROR] Unresolved reference: 'USERMGRUSERGETPROPERTY' on Codesys 3.5 SP19 ^{CODESYS Forge talk (Thread)}
[FATAL ERROR] Unresolved reference: 'USERMGRUSERGETPROPERTY' on Codesys 3.5 SP19
Last updated: 2023-03-11

Reference: Fehler in der Hilfe? ("Method Invocation") ^{CODESYS Forge talk (Thread)}
Reference: Fehler in der Hilfe? ("Method Invocation")
Last updated: 2011-09-07

Post by fschuler on No connection to Raspberry at runtime installation ^{CODESYS Forge talk (Post)}
Hi, I try to install the Codesys realtime in a Raspberry PI 3B+. When I click on the installation button I get always the message No connection to device: An established connection was aborted by the server. Raspberry 3B+ with newest raspberry PI OS. Codesys 3.5.15 Patch 1 Codesys Runtime Package 3.5.16.20 SSH is activated. I can login with Putty Ping is possible IP address search is possible Just the installation is not started.
Last updated: 2025-07-23

Post by amy123 on CSV Utility CANNOT_OPEN_DIRECTORY ^{CODESYS Forge talk (Post)}
Hello, I tried using the CSV Utility SL Example from the CODESYS IIoT Libraries SL. No matter what path I try, I can not get the InitSave to work from CSVWRitersSTExample, line 2. It always gives the error 'CANNOT_OPEN_DIRECTORY'. I am running this on an Windows Azure VM, with Codesys Control Win V3 x64. I added a folder called 'temp' to my C: so that the default 'C:/temp' would work. However it gives CANNOT_OPEN_DIRECTORY. I tried updating to 'C:\temp' with the same result. Any help would be greatly appreciated!
Last updated: 2024-02-14

Post by ducng on SMC_FB_WASNT_CALLED_DURING_MOTION when enable MC_MoveRelative ^{CODESYS Forge talk (Post)}
Hello, I am using an Inovance PLC to control a servo via EtherCAT. When I enable MC_POWER, the drive switches to Run mode successfully. After that I call MC_MoveRelative, but I get the error SMC_FB_WASNT_CALLED_DURING_MOTION. The servo vibrates but the motor shaft does not move. I am new to EtherCAT/servo motion control, so I would appreciate any guidance or suggestions for troubleshooting this issue. Thank you in advance for your help.
Last updated: 2025-11-02

Post by wbj0t on Global variable access by Programms and Modbus Devices (attach device to bus) ^{CODESYS Forge talk (Post)}
Hi everyone. I use Raspberry Pi 4, one core codesys SL. I have a question about global variable access via programm when I glued the same variable to MODBUS SERIAL/TCP DEVICE holding register. So, the question: what behavior of this modifying? When I set "Always update variables (in bus cycle)" and set some task as bus for the Device, then in another task I cant change this varible (can, but immediatly the old value setted again). But the same things works with MODBUS SLAVE: again "Always update..." and master attached to some task, then I change variable in another task and all works. I cant set up my variables from retains file at PrepareStart event because of this behavior with MODBUS SERIAL/TCP DEVICE. Thanks, wbj0t.
Last updated: 2024-07-18

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Last updated: 2024-10-26

Post by nguyenkhoi on FBERROR 14 REGULATOR OR START NOT SET .? ^{CODESYS Forge talk (Post)}
I have this problem too, have you solved it?
Last updated: 2025-09-30

Post by tanman19 on How to Use Personal Access Tokens from GitHub with Codesys Git ^{CODESYS Forge talk (Post)}
I am trying to push changes to a GitHub repository. I set up the Git Remote with the correct URL and committed the change. When I push the change it asks for my GitHub credentials which I know are correct, when I type in my username and password it gives me an error: "The provided credentials seem incorrect." So I tried putting in my Person Access token and when I put that in with my username I get this error: "The server request failed and returned a HTTP error code 403: Forbidden". Does anyone know how to correctly use Personal Access Tokens from GitHub with Codesys Git? Does it have to do something with the remote url or my username? Any help or guidance would be appreciated.
Last updated: 2023-09-28

Post by garrian on How to write multiple coils (Modbus FC15) ^{CODESYS Forge talk (Post)}
Thanks! As far as I can see, the client can only send words. And on the server side there are an array for each of the functions: bool for coil and discrete, word for holding and input registers. I assume I can use holding register, then use bit mapping on the words instead of coils. But I really want to use the FC15/coils.
Last updated: 2024-11-17

Post by deeksha on RaspberryPi with CoDeSys throwing error ^{CODESYS Forge talk (Post)}
I am trying to access Raspberry pi on CoDeSys, but it throws an error says, "No connection to target: An established connection was aborted by the server." I am able to access Raspberry pi via MobXterm, but on CoDeSys, it throws error. Looking for help in resolving this error. Error snap is attached. IP address is scanned here successfully, but when I am trying to install Raspberry pi packet: 4.0.0.0, it throws this error.
Last updated: 2024-08-23

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Last updated: 2024-10-26

Post by kronlundo on Licensing info not available (WAGO PFC200 + Codesys V3) ^{CODESYS Forge talk (Post)}
Hi! We're using a WAGO PFC200 for several projects towards the energy sector, and recently upgraded to CODESYS V3. We have the "IEC 60870-5-104 Server" package in a test program, and it works well with the package in DEMO mode. However, when we acquired a license for the "IEC 60870-5-104 Server" package and tried to add the license on the PFC200 through the license manager, we get an error (see attached file). It seems like there is no CmContainer on the device, does anyone have an idea on how to fix this? We've also contacted WAGO on this issue a while back with no feedback yet.
Last updated: 2024-06-10

Post by gseidel on Dynamic target position tracking ^{CODESYS Forge talk (Post)}
Hi kporter, a more direct way would be to use SMC_FollowPosition to write the set positions directly to the servo drive. This FB has reacts on changes of the fSetPosition on each call, without a need for a rising edge on Execute. See https://content.helpme-codesys.com/en/libs/SM3_Basic/Current/SM3_Basic/POUs/Movement/Direct/SMC_FollowPosition.html. Best regards, Georg
Last updated: 2025-09-08

Post by installwhat on Ethercat and profinet on together ^{CODESYS Forge talk (Post)}
I'm curious about the impact of having profinet and Ethercat (specifically softmotion so frame at start of task?) running together. Since it's advised to access the data from the bus task should have both profinet io and ethercat on the same task? Are there any implications around this one should be aware of especially since the frame at task start is just, so far as I'm aware, an ethercat thing? Thanks
Last updated: 2025-04-08

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