SysPlcCtrl23 and C0338: The library 'cmperrors interfaces, 3.5.5.0 (system)' is supported just in 32 bit applications ^{CODESYS Forge talk (Thread)}
SysPlcCtrl23 and C0338: The library 'cmperrors interfaces, 3.5.5.0 (system)' is supported just in 32 bit applications
Last updated: 2024-06-17

Post by ron-rp on Errors with VisuUserManagement library ^{CODESYS Forge talk (Post)}
Hi all, I've played a bit with the VisuUserManagement library, and some other security option in my project, and I started getting this error when logging in - see attached pic. something to do with a specific screen in the library - VUM_Login. Also, Codesys started to ask me to log in to the library when logging in, asking to log in as user of the groups Maintainer or Owner, which I dont know either users (attached pic). when I close the login screen and try to log in to the PLC again, everything works again until I close and open Codesys. I do use user and password to login to the PLC, and this login screen is fine I know the user and pass I setup. anyone know what did I do wrong here and how to fix it?
Last updated: 2024-06-25

Using a raspberry pi and NVLs to log variables outside of Codesys ^{CODESYS Forge talk (Thread)}
Using a raspberry pi and NVLs to log variables outside of Codesys
Last updated: 2025-11-21

CoDeSys v3.5: creating libraries for both 32-bit and 64-bit controllers ^{CODESYS Forge talk (Thread)}
CoDeSys v3.5: creating libraries for both 32-bit and 64-bit controllers
Last updated: 2025-12-10

SMC_Interpolator / CNC Abort – ControlAxisByPos Sometimes Remains Busy and Axis Continues Moving ^{CODESYS Forge talk (Thread)}
SMC_Interpolator / CNC Abort – ControlAxisByPos Sometimes Remains Busy and Axis Continues Moving
Last updated: 2026-10-27

Trend legend naming and access/config to/of trend/legend-variables ^{CODESYS Forge talk (Thread)}
Trend legend naming and access/config to/of trend/legend-variables
Last updated: 2025-12-22

UC20-M4000 Redundancy – Application is not automatically synchronized and redundancy breaks after online change ^{CODESYS Forge talk (Thread)}
UC20-M4000 Redundancy – Application is not automatically synchronized and redundancy breaks after online change
Last updated: 2026-03-16

Blocking UDP ports 1740–1743 and 22350 to disable CODESYS network scan (startup + device discovery) ^{CODESYS Forge talk (Thread)}
Blocking UDP ports 1740–1743 and 22350 to disable CODESYS network scan (startup + device discovery)
Last updated: 2026-03-31

CodeSys OPC UA client Unable to Connect To OPC UA sever through Username and password ^{CODESYS Forge talk (Thread)}
CodeSys OPC UA client Unable to Connect To OPC UA sever through Username and password
Last updated: 2026-05-07

Codesys Trend - setting Y axis minimum and maximum as variables - error ^{CODESYS Forge talk (Thread)}
Codesys Trend - setting Y axis minimum and maximum as variables - error
Last updated: 2026-05-22

MBA FPX 5002 Assessment 3: Advanced Business Strategy and Corporate Decision-Making ^{CODESYS Forge talk (Thread)}
MBA FPX 5002 Assessment 3: Advanced Business Strategy and Corporate Decision-Making
Last updated: 2026-06-01

CodeMeter Network Server: Keep runtime dongle local-only and export only a second CmStick ^{CODESYS Forge talk (Thread)}
CodeMeter Network Server: Keep runtime dongle local-only and export only a second CmStick
Last updated: 2026-08-02

Question about Demo License limitations for Modbus TCP communication and Fieldbus Instances ^{CODESYS Forge talk (Thread)}
Question about Demo License limitations for Modbus TCP communication and Fieldbus Instances
Last updated: 2026-02-28

Codesys Trend - setting Y axis minimum and maximum as variables - error ^{CODESYS Forge talk (Thread)}
Codesys Trend - setting Y axis minimum and maximum as variables - error
Last updated: 2026-03-22

_NEW when used with classes and interfaces. Interface shows "Hidden Instance" in watch. ^{CODESYS Forge talk (Thread)}
_NEW when used with classes and interfaces. Interface shows "Hidden Instance" in watch.
Last updated: 2026-03-24

WebVisu: switch-frame destroys and rebuilds referenced visualization - is retention configurable? ^{CODESYS Forge talk (Thread)}
WebVisu: switch-frame destroys and rebuilds referenced visualization - is retention configurable?
Last updated: 2026-08-07

Mismatch between coordinate monitor and actual motion using SMC_GroupJog2, MC_MoveLinearAbsolute (6DOF) ^{CODESYS Forge talk (Thread)}
Mismatch between coordinate monitor and actual motion using SMC_GroupJog2, MC_MoveLinearAbsolute (6DOF)
Last updated: 2026-10-16

Post by pernockham on Pointer/reference to Codesys trend recording object? ^{CODESYS Forge talk (Post)}
I have a Hmi that acts as an interface for many (mostly identical) units. This is managed by a sort of "mux" where you select which unit that should be presented on the HMI. Backbone is solved by a HMI-gvl defined as reference/pointer to "unit-data", which then can be set to the individual units. While this works for most data I still have not sorted how to solve this for the trend recordings. One solution would be to have already "mux:ed" data values as source for the/one trend. However then the trend would contain data from different units/sources which could/will cause confusion. If its possible to "clear" this can be mitigated. Possibly let the trend have its own "mux-selector" (ie, the hmi are focusing on unit#3 however trend data is locked on unit#5), that could also work.. Or, let each unit have its own trend recording, which is focused if the unit is "selected". Can I reach the trend recording objects programmatically (those defined in the device tree)? Ie, can I use a "reference/pointer to these trend recording objects"? There is a field "data source" in the trend properties dialog which seems to resemble what Im looking for? But Im not sure if I can use it in some way, I cannot change anything in this field it only says <local application="">. </local>
Last updated: 2025-09-16

Post by chirag on About byte swap and convert into 16 bits ^{CODESYS Forge talk (Post)}
Hello, I have %QB0 8 high bits and %QB1 8 low bits . How can i swap bits %QB0 and %QB1 for requirment positions in a 16-bit value ? after that i need %QB0 and %QB1 in to 16bits . For that, i need help. Please see attached pictures for your reference. Thanks in advance.
Last updated: 2023-12-04

Post by glutenaron on Safety drive EL6900 and mitsubishi ^{CODESYS Forge talk (Post)}
Last updated: 2025-05-20

Post by giackanto on Eoe issues with Windows and Linux ^{CODESYS Forge talk (Post)}
Last updated: 2023-12-20

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