ERROR C0138: No matching 'FB_Init' method found for instantiation of VisuClientObjectMgr ^{CODESYS Forge talk (Thread)}
ERROR C0138: No matching 'FB_Init' method found for instantiation of VisuClientObjectMgr
Last updated: 2025-10-07

Problem with FBD/LD and "Go to the definition" of a Method ^{CODESYS Forge talk (Thread)}
Problem with FBD/LD and "Go to the definition" of a Method
Last updated: 2012-02-10

<identifier>: POINTER TO <data type | function block | program | method | function>; ^{CODESYS Forge talk (Thread)}
<identifier>: POINTER TO <data type="" |="" function="" block="" program="" method="">;</data></identifier>
Last updated: 2022-03-23

Why is no more possible use REFERECE OF in return method type? ^{CODESYS Forge talk (Thread)}
Why is no more possible use REFERECE OF in return method type?
Last updated: 2021-12-10

[OOP] Use extended interface instead of base interface as a method return object ^{CODESYS Forge talk (Thread)}
[OOP] Use extended interface instead of base interface as a method return object
Last updated: 2017-03-02

call of a method of a function block in another program ^{CODESYS Forge talk (Thread)}
call of a method of a function block in another program
Last updated: 2024-06-03

call of a method of a function block in another program ^{CODESYS Forge talk (Thread)}
call of a method of a function block in another program
Last updated: 2024-06-03

Error: C0138: No matching 'FB_Init' method found for instantiation of VisuClientObjectMgr ^{CODESYS Forge talk (Thread)}
Error: C0138: No matching 'FB_Init' method found for instantiation of VisuClientObjectMgr
Last updated: 2025-11-28

Error: C0138: No matching 'FB_Init' method found for instantiation of VisuClientObjectMgr ^{CODESYS Forge talk (Thread)}
Error: C0138: No matching 'FB_Init' method found for instantiation of VisuClientObjectMgr
Last updated: 2025-11-28

Post by gatto on Undertanding Application Based Licenses ^{CODESYS Forge talk (Post)}
Hi, i think you are right. Did you press the key shopping cart? Codesys tells you the license. What I don't appreciate is that i need an additional license for communication. The system reports opc ua but this cheats you. This is communication that also concerns the tag symbols that codesys eth v3 exchanges with an operator panel. Attached is a screenshot of my case where you can see that communication opc ua is cheating you. 512 tags included in the program license are few. So, I had to buy 2 licenses. one for the program and one for communication. I don't like this policy.
Last updated: 2024-11-11

Post by clarenced on Multiple applications on one device sharing variables. ^{CODESYS Forge talk (Post)}
I got this working using OPC UA. In the logic application I just added a Symbol Configuration. In the HMI application I added a Data Sources Manager and OPC UA Data Source. The one thing I don't like is the way the tags end up being named in the HMI application. In the logic application I have a program named PLC_PRG. It has a variable named testDINT. In the logic application the name I get for this variable is DeviceSet.CODESYS_Control_Win_V3_x64.Resources.Logic.Programs.PLC_PRG.testDINT. This is very long and looks like it could change if I used this on a different device type. Any ideas how I could get this name shortened down to just PLC_PRG.testDINT like it is on the Logic application?
Last updated: 2025-03-06

Post by clarenced on Multiple applications on one device sharing variables. ^{CODESYS Forge talk (Post)}
I got this working using OPC UA. In the logic application I just added a Symbol Configuration. In the HMI application I added a Data Sources Manager and OPC UA Data Source. The one thing I don't like is the way the tags end up being named in the HMI application. In the logic application I have a program named PLC_PRG. It has a variable named testDINT. In the HMI application the name I get for this variable is DeviceSet.CODESYS_Control_Win_V3_x64.Resources.Logic.Programs.PLC_PRG.testDINT. This is very long and looks like it could change if I used this on a different device type. Any ideas how I could get this name shortened down to just PLC_PRG.testDINT like it is on the Logic application?
Last updated: 2025-03-06

Post by davidbo on All the things needed for anonymous login to OPC UA ^{CODESYS Forge talk (Post)}
I thought I knew what I am doing, but something is missing what? From Device-Communication Settings select from drop down menu "Device" Select entry "Change Runtime Security Policy" Check the "Allow anonymous login" Select "Symbol Configuration" in your application In settings check "Support for OPC UA features" Check some of the values you want in your set Press the build button in the "Symbol Configuration" Press the button "Configure Symbol Rights" Make sure that Anonymous_OPCUAServer has access right to your "default set" From Device-Communication Settings select "Access Rights" in RemoteConnections-OPCUAServer Anonymous_OPCUAServer should be given modify and view rights I suppose. I can connect with UaExpert but I cannot see my Application or browse my values. What is missing?
Last updated: 2025-09-10

Post by daanyouknow on Using a raspberry pi and NVLs to log variables outside of Codesys ^{CODESYS Forge talk (Post)}
Hi, My PLC/controller doesn't support OPC UA, so my current plan to create a ringbuffer/circular logger is to connect a raspberry pi to it, use the Network Variable List receiver and sender and raspberry pi codesys runtime to get the variables to the raspberry pi, after which I will use the pi which DOES support OPC UA to get the variables to a python program which logs the desired variables for a certain amount of time for me, would this work? I don't want to spend 50+ euros + licencing fees for a solution that might not work.
Last updated: 2025-11-14

Post by clarenced on ERROR: Calling the program "AlarmStorage_Prg" is not allowed from multiple tasks ^{CODESYS Forge talk (Post)}
Using codesys v3.5 SP21 Patch 1. We are using Visualization to display alarms. Other then the automatically created AlarmManagerTask, there is no code written to call AlarmStorage_Prg. Any ideas why we would be seeing this error in the log? The runtime actually shutdown. Not sure if that was caused by this error or not. 2025-08-03T02:45:35.444Z, 0x00001012, 4, 0, 0, * ERROR: Calling the program "AlarmStorage_Prg" is not allowed from multiple tasks. 2025-08-03T03:48:15.294Z, 0x00001012, 4, 0, 0, * ERROR: Calling the program "AlarmStorage_Prg" is not allowed from multiple tasks. 2025-08-03T04:38:11.557Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state * We recommend a reboot of the controller now! * 2025-08-03T04:38:11.576Z, 0x0000010f, 8, 1, 0, #### Exception: SysSemEnter - Semaphore deadlock detected - owner thread died [tid:726740] - system may be in an inconsistent state. 2025-08-03T04:38:11.576Z, 0x00000103, 65544, 1, 0, runtime received SIGABRT - system may be in an inconsistent state * We recommend a reboot of the controller now! 2025-08-03T04:38:11.576Z, 0x00000001, 8, 260, 3, #### Exception: HANDLED EXCPT* <excpt>NonContinuable</excpt> in CH_COMM_CYCLE 2025-08-03T04:40:12.308Z, 0x00000001, 1, 0, 35, CODESYS Control shutdown... 2025-08-03T04:40:13.436Z, 0x00000071, 1, 0, 13, Webserver stopped 2025-08-03T04:40:13.437Z, 0x00000114, 2, 1, 0, !!!! Warning: task_signalhandler_exit [MainTask] lost cycles: 14809 2025-08-03T04:40:13.497Z, 0x00000001, 1, 0, 10, [UNLOADED] IEC|Dynamic: <cmp>IecVarAccess</cmp>, <id>0x00001007</id> <ver>3.5.3.64</ver> 2025-08-03T04:40:13.506Z, 0x00000001, 1, 0, 10, [UNLOADED] IEC|Dynamic: <cmp>AlarmMgr</cmp>, <id>0x00001012</id> <ver>4.7.0.0</ver> 2025-08-03T04:40:13.513Z, 0x00000071, 2, 0, 14, !!!! Warning: Unbalanced calls to WebServerRequestRunning/WebServerReleaseRunning 2025-08-03T04:40:13.513Z, 0x00000001, 1, 0, 10, [UNLOADED] IEC|Dynamic: <cmp>IECVisualization</cmp>, <id>0x0000100c</id> <ver>4.7.0.0</ver> 2025-08-03T04:40:13.611Z, 0x00000124, 1, 0, 0, Provider 'AddressSpaceFragment Provider' (version 0x3051500) unregisterd at the OPC UA server. 2025-08-03T04:40:13.611Z, 0x00000124, 1, 0, 0, Provider 'OPC UA for IEC-61131-3' (version 0x3051500) unregisterd at the OPC UA server. 2025-08-03T04:50:17.708Z, 0x00000001, 1, 0, 36, CODESYS Control shutdown done
Last updated: 2025-08-04

Post by ofey on OPC server crash ^{CODESYS Forge talk (Post)}
Hi! I repeatly encounter a crash of the OPC server, which forces a reboot of the controller with frequent connect/disconnect to the server. Have any of you encountered this before? And is it a workaround? ie. deny that particular client connection by timeout or similar instead of crashing the PLC? This is during a development phase of the user interface. Up to 3 others connect/disconnect frequently to test their code. It is a bit troublesome of the PLC crashes several times a day because of this :( I greatly appreciate all comments. I hope it exists a fix for this, or something that hinders the crash. I attached the logfile for the crash
Last updated: 2024-11-26

Post by denis777 on Dynamische Datenquellenanbindung ^{CODESYS Forge talk (Post)}
Moin zusammen, ich habe vor die OPC UA-Verbindung dynamisch einzubinden und es auch nach der Codesys-Anleitung probiert. Dabei hatte ich aber das Problem, dass ich zusätzlich zu den Config-Variablen auch noch eine statische URL angeben muss, was dann aber den Sinn der dynamischen Vergabe verfehlt. Hat dazu schon jemand Erfahrungen gesammelt und kann mir vielleicht Tipps geben, was ich noch beachten muss? LG Denis
Last updated: 2024-10-24

Post by denis777 on Dynamische Datenquellenanbindung ^{CODESYS Forge talk (Post)}
Moin zusammen, ich habe vor die OPC UA-Verbindung dynamisch einzubinden und es auch nach der Codesys-Anleitung probiert. Dabei hatte ich aber das Problem, dass ich zusätzlich zu den Config-Variablen auch noch eine statische URL angeben muss, was dann aber den Sinn der dynamischen Vergabe verfehlt. Hat dazu schon jemand Erfahrungen gesammelt und kann mir vielleicht Tipps geben, was ich noch beachten muss? LG Denis
Last updated: 2024-10-24

Post by snhatton on OPC UA: How to change NodeId ?! ^{CODESYS Forge talk (Post)}
You can change the node id by adding the following to /etc/CODESYSControl.cfg: [CmpOPCUAProviderIecVarAccess] CustomNodeName=MyPLC123 Then restart the runtime and the new Node name will appear with the connection. I don't know if it's possible to remove the |var| from the name. I hope this helps!
Last updated: 2023-12-11

Post by jddaigle on A method in the Task Configurator ^{CODESYS Forge talk (Post)}
How is that possible to put a Function Block Method in the Task Configurator, as they did in the CNC3DEditor.project example? In that exmaple, I removed the gCNCMachine.SlowTaskCall method from the Task Configuration and I can't put it back. https://us.store.codesys.com/cnc-3d-editor.html Thanks!
Last updated: 2025-01-23

Post by climblinne on Calling OPC UA Methods from UaExpert ^{CODESYS Forge talk (Post)}
Hello, I hope someone could help me. I installed the newest Codesys 3.5 SP 20 Patch 1. When loading the demo files from @i-campbell I can upgrade them to the latest version and everthing works on the OPC-UA client side as expected (object "a" is visible, I can use the "ExampleMethod"). Now I * remove the "Information Model", * delete the "OPC_UA_Symbols Objects", * Add "Information Model" again * add "TestRootObjectType" again and "Generate IEC declarations" * and search for mapped instances (to get instance "a" again) Very good still working as expected. Now I delete the OPC_UA_Symbols and add it again referring to the "objecttest" from 16.9.2020. Also I redo the steps from above. The result is now, that I can't see the "a" object in the "Root/Objects" folder. Why ist this and how can I make it running? I think, it could may be a different version of the UA configuration file. I tried to build my own model definition files and got the same problem (but I am really not an expert). When someone has a actual model, which is also running in the actual Codesys I would be very grateful. Or even better, how to make the correct model in e.g. UA Modeler SW (I followed the description https://documentation.unified-automation.com/uamodeler/1.6.0/html/howprojnet_sec.html).
Last updated: 2024-07-01

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

Keine Daten vom OPC wenn 2 PLC und eine davon keine.. GELÖST ^{CODESYS Forge talk (Thread)}
Keine Daten vom OPC wenn 2 PLC und eine davon keine.. GELÖST
Last updated: 2012-07-26

Post by macman on CoDeSyS OPC DA stops working ^{CODESYS Forge talk (Post)}
Yes. I bought license and installed latest CoDeSys OPC DA version.
Last updated: 2023-12-21

How to configure CODESYSControl_User.cfg in order to use a specific network card for OPCUA Server ^{CODESYS Forge talk (Thread)}
How to configure CODESYSControl_User.cfg in order to use a specific network card for OPCUA Server
Last updated: 2023-08-28

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