Post by eschwellinger on Codesys ControlWinV3x64 with EtherCat Slave ^{CODESYS Forge talk (Post)}
please check the plclog for more information. sounds like NPCap does not work.
Last updated: 2026-02-04

Post by mrkm-dic on CODESYS: Combining Master Redundancy with EtherCAT Ring Topology – Is it Supported? ^{CODESYS Forge talk (Post)}
Hello, I would like to ask whether it is technically supported (and practically achievable) to combine CODESYS Master Redundancy with EtherCAT ring (loop) redundancy in the same system. System setup CODESYS version: CODESYS 3.5.21.40 CODESYS Control SL for Weidmuller u-OS-4.12.2.0 Controllers (Masters): Weidmuller UC20-M4000 ×2, configured as Active / Standby using CODESYS redundancy EtherCAT Slaves: Weidmuller UR20-FBC-EC ×3, supporting EtherCAT ring / line break detection Topology: EtherCAT ring (loop) Main question Is it officially supported to use: ・CODESYS PLC/Master redundancy (Active/Standby) and ・EtherCAT ring topology (for cable redundancy) at the same time? Expected behavior Our expectation is: ・When the Active PLC fails, the Standby PLC becomes Active ・The Standby PLC then takes over the role of EtherCAT Master ・EtherCAT communication is re-established ・I/O control continues after reinitialization (a short interruption is acceptable; no strict bumpless requirement) We do not expect completely seamless / zero-cycle switchover, but we want to understand: ・Whether this combination is supported by design ・Or whether there are known limitations or restrictions when EtherCAT ring mode is used together with Master redundancy Clarification At this stage, the question is mainly about feasibility and support, not about a specific error message yet. Any official guidance, limitations, or real-world experience would be greatly appreciated. Thank you in advance.
Last updated: 2026-02-05

Post by russells on Codesys ControlWinV3x64 with EtherCat Slave ^{CODESYS Forge talk (Post)}
Much thanks. I reinstalled NPCap and it is now working. Much thanks.
Last updated: 2026-02-05

Post by jslarbaletier on Unable to compare projects containing alarm manager 4.5.0.0 ^{CODESYS Forge talk (Post)}
Hi! I had the same issue and finally found a solution. Alarm Configuration was located in a “Visualisations” folder. I moved Alarm Configuration directly under “Application”, and the issue was resolved.
Last updated: 2026-02-05

Post by timvh on CODESYS: Combining Master Redundancy with EtherCAT Ring Topology – Is it Supported? ^{CODESYS Forge talk (Post)}
Yes, this works (at least we have it running with Wago PLC and Beckhoff I/O), but the concept works. You need 2 PLC's with at leat 3 network interfaces. And 2 switches (can be unmanaged). See the attached simple diagram for the solution.
Last updated: 2026-02-05

Post by mrkm-dic on CODESYS: Combining Master Redundancy with EtherCAT Ring Topology – Is it Supported? ^{CODESYS Forge talk (Post)}
Hi! thanks for reply. We tested the configuration you proposed as well; however, when the cable between the controller and the switch was disconnected, the Active and Standby roles were swapped. Did you observe the same behavior in your configuration using WAGO and Beckhoff?
Last updated: 2026-02-06

CODESYS: Combining Master Redundancy with EtherCAT Ring Topology – Is it Supported? ^{CODESYS Forge talk (Thread)}
CODESYS: Combining Master Redundancy with EtherCAT Ring Topology – Is it Supported?
Last updated: 2026-02-06

Post by winki on Error in licence activation ^{CODESYS Forge talk (Post)}
Hello, I think I understand: On my debian gateway I have done: sudo cmu --list cmu - CodeMeter Universal Support Tool. Version 8.30a of 2025-May-06 (Build 6885) for Linux/ARMHF 64-Bit Copyright (C) 2007-2025 by WIBU-SYSTEMS AG. All rights reserved. List all locally connected CmContainers: - CmContainer with Serial Number 130-XXXXXXXX and version 3.00 (empty) - CmContainer with Serial Number 130-XXXXXXXX and version 3.00 (locked) Result: 2 CmContainer(s) listed. The licence has been activated with a computer Name, but the guy who did it make a mistake in the name, so he changed it after to have activate the licence. I think this has created a second container. The licence is actived on the other container.
Last updated: 2026-02-06

Post by gatto on EXCEPTION [watchdog] how to find position cause ^{CODESYS Forge talk (Post)}
hi. My plc is weidmuller UC20-WL200-AC, IDE CODESYS 3.5.20.40, see picture for task settings. sometime i've got the plc stop. Reading the log, I find: EXCEPTIONPOSITION : IP=0x(nil) (no IECcontext could be retrieved) component CmpIecTask EXCEPTION [Watchdog] occurred: App=[Application], Task=[TASK_O_MAIN] component CmpIecTask How to find the position of problem?
Last updated: 2026-02-06

Codesys Network driver install for Codesys Control RTE x64 ^{CODESYS Forge talk (Thread)}
Codesys Network driver install for Codesys Control RTE x64
Last updated: 2026-02-06

Error in licence activation ^{CODESYS Forge talk (Thread)}
Error in licence activation
Last updated: 2026-02-06

Creating Boot Application not working ^{CODESYS Forge talk (Thread)}
Creating Boot Application not working
Last updated: 2026-02-06

Post by hetongapp on The selected container ... does not fit your ticket ^{CODESYS Forge talk (Post)}
Do you fixed the issues about container serial number different?
Last updated: 2026-02-07

The selected container ... does not fit your ticket ^{CODESYS Forge talk (Thread)}
The selected container ... does not fit your ticket
Last updated: 2026-02-07

Post by timvh on EXCEPTION [watchdog] how to find position cause ^{CODESYS Forge talk (Post)}
Monitor what your current cycle time is (in the Task Configuration when you are online). If this is sometimes close to 200ms, then change your code (e.g. limit the loops, or prevent copying a lot of data between objects). Or just set the Watchdog time (or sensitivity) higher if you don't care that it sometimes takes longer than 200ms. If you want to find out which objects in your application consume the most time, then buy a PDE (Professional Developer Edition) license. With this you get a license for the Profiler. This can help you a lot to find the root cause, because it will create a nice overview of all objects, their calls and the time (percentage) it takes to execute it.
Last updated: 2026-02-09

EXCEPTION [watchdog] how to find position cause ^{CODESYS Forge talk (Thread)}
EXCEPTION [watchdog] how to find position cause
Last updated: 2026-02-09

Post by maxcoulsn on ERROR: Calling the program "AlarmStorage_Prg" is not allowed from multiple tasks ^{CODESYS Forge talk (Post)}
Did you figure out this solution? Im on SP19 Patch 7 Experiencing the same issue.
Last updated: 2026-02-09

Codesys EtherCAT Driver (CmpEt1000MPD) can't set MAC address ^{CODESYS Forge talk (Thread)}
Codesys EtherCAT Driver (CmpEt1000MPD) can't set MAC address
Last updated: 2026-02-09

Post by kporter on Codesys EtherCAT Driver (CmpEt1000MPD) can't set MAC address ^{CODESYS Forge talk (Post)}
EtherCAT is a point-to-point protocol so it doesn't need a unique MAC address. It would be very useful to set the MAC address to 020000000000, the standard address for this kind of application. (The important bit is the 02 at the start of the address, which means locally-administered MAC.) The stock Windows driver can do this for my i210 card. But the CODESYS CmpEt1000MPD driver cannot. The image shows the setting with the Windows driver. If I set all my customers' cards to this address, then I don't need to deal with this when deploying my application. A simple PowerShell script can be used to set the MAC address once when the NIC is installed and the driver is changed.
Last updated: 2026-02-09

Post by dosnova on *exception* [processorloadwatchdog] occurred in: app=[all], task=[all] ^{CODESYS Forge talk (Post)}
Weintek Codesys firmware update does not solve this problem..
Last updated: 2026-02-10

*exception* [processorloadwatchdog] occurred in: app=[all], task=[all] ^{CODESYS Forge talk (Thread)}
exception [processorloadwatchdog] occurred in: app=[all], task=[all]
Last updated: 2026-02-10

Post by dosnova on *exception* [processorloadwatchdog] occurred in: app=[all], task=[all] ^{CODESYS Forge talk (Post)}
I've the same problem. I'm not able to solve..
Last updated: 2026-02-10

Post by nano on CODESYS and Github Copilot ^{CODESYS Forge talk (Post)}
your Project is allways written in st? then have a look at the FBS from PDE. schould solve parts of the job
Last updated: 2026-02-11

Post by konstantin on Lenze i950 Servo and WAGO PFC200 ^{CODESYS Forge talk (Post)}
Hello, In our workshop we have a Lenze i950 servo drive that has an EtherCAT bus and CiA402 compatibility. The WAGO is PFC200 750-8212 and as per documentation it has built-in license for SoftMotion Light functionality. It is not capable of supporting the full SoftMotion functionality like gearing and synchronizing. I added the EtherCAT esi files from Lenze and the EtherCAT master does see the drive, then I added a SoftMotion Light Axis object. The problem is that I can only energize the axis, I cannot execute any other commands. I set the positive and negative torque limits from the PDOs to 200% and when I try to move the axis by force it does not move back to its original position. I use the SML function blocks from the PLCOpen library and the error from the function blocks is that the op mode cannot be changed. Then I tried using a standard SoftMotion axis object and everything works fine, except the MC_Home function block. The axis moves back to its position when forced out of it. I follow this guide from Lenze - Lenze i950 CODESYS V3 What could cause this issue with the SoftMotion Light axis object? Best Regards Konstantin Kolev
Last updated: 2026-02-11

Post by dvmaris on Control for Linux ARM64-User Management issue ^{CODESYS Forge talk (Post)}
I'm trying to work with Codesys Control for Linux ARM64 SL 4.18.0.0 on a Toradex Verdin NXP iMX8MP. I have the runtime installed and operational as well as Codemeter lite 8.40.7141.503 (arm64). I'm running 3.5.20.60 and when "Scan Network" I see the Verdin popup. When I try to connect to it, the "mandatory use of the user management" popup shows...which makes sense. I click YES and enter user information and click OK. It immediately displays a "No device is responding to the scan request" popup. The IDE can see the Verdin in the scan...so this popup does not make sense to me. I thought maybe it was a read only issue but I've made all partitions and paths RW. Has anyone experienced this? Can anyone tell me where it is trying to write user data?
Last updated: 2026-02-11

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