Post by marks on Regarding trend storage access error ^{CODESYS Forge talk (Post)}
I had this problem when running the application as a Simulation. When I wrote it to the Pi all worked as expected. If this isn't the case for you, we've seen some issues with sqlite on the Pi's - so reset Origin and re-download may help in that case. Good luck, Mark
Last updated: 2024-07-24

Post by jmfernandes on OpenDir always in error ^{CODESYS Forge talk (Post)}
Thanks for the answer Tim. I am using the codesys version 3.5 SP16, is this also affected or only after version 19? But now at leastI know that is an acess problem to the file and not something else. Unfortunately the link you posted on 2023 are now dead, but I will investigate!
Last updated: 2024-08-01

Post by joep on Creating Custom Kinematics ^{CODESYS Forge talk (Post)}
Hi John, Coincidentally I also tried creating a custom kinematics model for a parallel delta2 like the picture I added. bipod_rotary doesn't seem to do the job. Have you accomplished a working model? I'm stuck on error: "smc_cp_invalid_path_elem" while im certain my math is correct since we made it work using single axis movements. Maybe we could help each other Best regards, Joep
Last updated: 2024-09-06

Post by codesysdave on CoDeSys 3.5 SP20 "No Offline Help installed" ^{CODESYS Forge talk (Post)}
What does this message mean, in the Errors/Messages box? "[ERROR] MyProjectName: No Offline Help installed" In CDS23, I used to be able to select a system function with the mouse, and press F1. Help and description would popup. How do I get so-called On-line Help installed?
Last updated: 2024-09-06

Post by winki on Warning attribut no_assign ^{CODESYS Forge talk (Post)}
Hello, I have two warning on my code, and I would like to understand why. C0540: Attribut 'no_assign' missing for the 'FB_MOdbusReadHolding'. The type of the variable clientTcp is set to 'no_assign'. In this FB, I have done: clientTcp : ModbusFB.ClientTCP; clientRequest : ModbusFB.ClientRequestReadHoldingRegisters; The error comes from clientTcp : ModbusFB.ClientTCP; I am using ModbusFB 4.4.0.0. Thx a lot
Last updated: 2025-01-10

Post by winki on Warning attribut no_assign ^{CODESYS Forge talk (Post)}
Hello, I have two warning on my code, and I would like to understand why. C0540: Attribut 'no_assign' missing for the 'FB_MOdbusReadHolding'. The type of the variable clientTcp is set to 'no_assign'. In this FB, I have done: clientTcp : ModbusFB.ClientTCP; clientRequest : ModbusFB.ClientRequestReadHoldingRegisters; The error comes from clientTcp : ModbusFB.ClientTCP; I am using ModbusFB 4.4.0.0. Thx a lot
Last updated: 2025-01-10

Post by davidking on Error, visualisation property handling, VISU_USEPROPERTYINFO ^{CODESYS Forge talk (Post)}
Solution: Disable VISU_USEPROPERTYINFO define Go to Project → Options (or Project → Properties, depending on your CODESYS version). Find the section called Compiler Defines. Look for the define: nginx Copy Edit VISU_USEPROPERTYINFO Delete it from the list, or uncheck it if it’s a checkbox. Save your changes and try compiling the project again. → This is the right approach if you don’t need property handling for visualization elements.
Last updated: 2025-07-09

Post by oscardm on Problem install codesys 3.5.17 SP 30 with Codesys Installer ^{CODESYS Forge talk (Post)}
Hi, I have a problem with codesys installer: if install a package on the codesys 3.5.17 SP17, and i try to install a package, for example SVN package, the codesys installer report the "digital signature expired error". Anyone have an idea for resolution ? Thanks for your feedback
Last updated: 2024-01-12

Post by jmauer on Codesys 3.5 SP16 Modbus change port settings. ^{CODESYS Forge talk (Post)}
Hello, I'm coming to you today because I'm trying to make the baudrate and the slave number dynamic. I've tried the "updateComPortSettings" method on the slave device but it doesn't work and gives the "Modbus_COM_Port" an error. Can you tell me how you got this method to work? Thanks in advance for your help jérémy
Last updated: 2024-02-20

Post by kuegerls on CSV Utility SL ^{CODESYS Forge talk (Post)}
Hello, I want to read a CSV file using the CSV Utility SL library, but I encounter an 'invalid_handle' error during initialization. What could be the cause? For my test program see the screenshot. I have purchased a license, and it is also installed on my PLC. Thank you in advance. Best regards, Stefan.
Last updated: 2024-05-13

Post by kalmeyer on Stepper motor control with (SM_Drive_RaspStepper_direct) ^{CODESYS Forge talk (Post)}
Hi Helpers I'm trying to work with stepper motor on Rasp 5 for the first time. So I'm pretty new.😥here. I've used: https://forge.codesys.com/drv/sm3raspistepper/home/Home/ but I get the following error when I insert. I also get 6 errors when I "rebuilder" after installering "SM_Drive_RaspStepper_direct" from the tree. Hope there is help for me. Thanks in advance /Klaus
Last updated: 2025-11-04

Post by willebro on "Distributed clocks are not synchronized, Rea time problem on hardware" ? ^{CODESYS Forge talk (Post)}
https://forge.codesys.com/forge/talk/Engineering/thread/632c29cb93/#8d94 The above comment is the best, but if you just want to see it work you can try disabling the distributed clock. It's not the right thing to do but it should resolve that error.
Last updated: 2025-12-16

Post by blitz on SMC_ERROR SMC_CGR_INVALID_POSPERIOD ^{CODESYS Forge talk (Post)}
Codesys - SMC_ERROR SMC_CGR_INVALID_POSPERIOD - Invalid modulo period less than or equal to zero or greater than half the bus bandwidth. Has anyone seen this error and actually understands what it means and how to get rid of it? I tried to work around it by reducing the number of increments on the drive but then the drive itself starts throwing errors.
Last updated: 2025-12-15

Post by yoeri on Python Scripted Save_Archive with noUI ^{CODESYS Forge talk (Post)}
Is there any update on this? Running codesys 3.5.19.70 proj = projects.open(project_path, primary=True, update_flags=flags) This gives an error only when using --noUI exception System.NullReferenceException: Traceback (most recent call last): File "C:\Project\ci\build.py", line 14, in <module> SystemError: Object reference not set to an instance of an object. Exit code: 1</module>
Last updated: 2026-01-30

Post by mait-tim on Unknown Type ^{CODESYS Forge talk (Post)}
Hello, Im working with EPEC PLC's and working on the HMI and i'm running into the following errors: Unknown Type ISOImages.TargetContainer.TDS (and similars) I cannot locate the error and the source position is the visutalisation manager where i cannot find anything related to this type. Im working with: Codesys V3.5 SP18 patch 3 and i cannot update since the hardware does not allow for newer SP versions
Last updated: 2026-04-03

Post by reinier-geers on Virtual Api to vieuw what im sending ^{CODESYS Forge talk (Post)}
Hi. Is there a website to test my webclient ? When i do a web api test on internet it works. But with codesys ill get an error. So is there a website to tests what im sending ? or a way to look in to the Codeys FB Webclient ?
Last updated: 2026-04-05

Post by reinier-geers on Virtual Api to vieuw what im sending ^{CODESYS Forge talk (Post)}
Hi. Is there a website to test my webclient ? When i do a web api test on internet it works. But with codesys ill get an error. So is there a website to tests what im sending ? or a way to look in to the Codeys FB Webclient ?
Last updated: 2026-04-05

Post by john-ronald on Communication error (#0), logout performed,please check if plc is connected ^{CODESYS Forge talk (Post)}
Hi, I have the same problem. However I am using ethernet connection not USB. I can ping the PLC and also connect to it via Wago ethernet settings, but I cannot upload using the Codesys 2.3. My PLC is Wago 750-862. The detailed error is - " connect: Connection refused Write attempt from invalid socket. " Any help would be appreciated.
Last updated: 2023-09-11

Post by drno on AlarmMgr Database Error in method WriteToStorage: Error code = 30531, Action = 1030 ^{CODESYS Forge talk (Post)}
Hallo zusammen, auf einer Industriesteuerung (Target-Version 3.5.5.0) läuft unter anderem eine Alarmverwaltung mit Alarmspeicherung. Offensichtlich kann kein Schreibzugriff auf das .sqlite File durchgeführt werden, daher ist die Alarmhistorie nicht mehr verfügbar. Versuche mit unterschiedlichen Unterverzeichnissen führten nicht zum Erfolg. Die Datei "application.alarmstorage.sqlite" wird zwar angelegt, aber es erfolgen keine Einträge. Hat jemand eine Idee dazu? Die Steuerung ist ca. 8 Jahre in Betrieb, die Alarmhistorie hat früher mal funktioniert. Danke, LG
Last updated: 2023-11-21

Post by tcarlbom on codesys sp20 opcua not working ^{CODESYS Forge talk (Post)}
hi, anyone else having trouble with opc ua in codesys sp20? i get Error 'BadIdentityTokenInvalid' was returned during ActivateSession i have tried both windows x64 runtime and linux runtime. i have created a completely new codesys project for this. in each of them i have only added the symbol configuration and selected one tag. i have tried several opc ua client, like ua expert, nodejs and python. all return Error 'BadIdentityTokenInvalid' was returned during ActivateSession so the problem must be the opc ua server.
Last updated: 2024-07-03

Post by athuum on Error 'Library not found' and 'Unkown type' ^{CODESYS Forge talk (Post)}
Hello, I am getting the following error and warning when trying to download a project into a PLC: - Library CmpTargetVisu has not been added to the Library manager, or no valid license could be found - Unkown type: 'CmpEventMgr.EventParam' As far as I can see, both are included, and licensed, in the library manager (see image). What could the problem be, and how would I resolve this?
Last updated: 2024-10-08

Post by cillian on Error when opening HTML5Control Editor ^{CODESYS Forge talk (Post)}
Hello, I am new to this forum so apologies if this is posted in the incorrect area. I am getting an error when trying to open the HTML5 Control Editor - this was working fine previous days. I am using Codesys V3.5 SP20 Patch 3. I have reinstalled the application. Below is a screenshot of what shows when I attempt to open HTML5 Control Editor. Would anyone know the solution to rectifying this problem? Thanks in advance. Edit: This is now fixed.
Last updated: 2024-10-22

Post by phryniszak on RPI CANFD ^{CODESYS Forge talk (Post)}
Hi, I have rpi with CANFD MCP2518FD. Classic can communication is working OK but when I try open in CANFD hDriver := CL2.FdDriverOpenH(usiNetId := 0, uiNominalBaudrate := 500, uiDataBaudrate := 0, xSupport29Bits := FALSE, ctMessages := 100, peError := ADR(eError) error is returned with value 10226 which is not documented (https://content.helpme-codesys.com/en/libs/CAA%20Can%20Low%20Level%20Extern/Current/CAN-Low-Level/Enums/ERROR.html#error) CAA CanL2 is 3.5.21 version. Question is: 1. Is anyone get CANFD working? 2. What is meaning of this value (10226)? Regards, Pawel
Last updated: 2025-08-09

Post by phryniszak on RPI CANFD ^{CODESYS Forge talk (Post)}
Hi, I have rpi with CANFD MCP2518FD. Classic can communication is working OK but when I try open in CANFD hDriver := CL2.FdDriverOpenH(usiNetId := 0, uiNominalBaudrate := 500, uiDataBaudrate := 0, xSupport29Bits := FALSE, ctMessages := 100, peError := ADR(eError) error is returned with value 10226 which is not documented (https://content.helpme-codesys.com/en/libs/CAA%20Can%20Low%20Level%20Extern/Current/CAN-Low-Level/Enums/ERROR.html#error) CAA CanL2 is 3.5.21 version. Question is: 1. Is anyone get CANFD working? 2. What is meaning of this value (10226)? Regards, Pawel
Last updated: 2025-08-09

Post by wedahitha on Could not open library 'SysSocket23, ^{CODESYS Forge talk (Post)}
Hi there, I am trying to open a codesys project done by someone else and Once I install all the libraries I get this error [ERROR] : Library Manager [PROJECT 01: PLC Logic: Application]: Could not open library 'SysSocket23, * (System)'. (Reason: The library 'SysSocket23, * (System)' has not been installed to the system.) SysSocket23 is a standard library and I also tried using the same OSCAT library which was from the original computer that made this code. Using CODESYS V3.5 SP18 Patch 2 Please help me how to solve this problem.
Last updated: 2023-12-19

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