Testing of Codesys program ^{CODESYS Forge talk (Thread)}
Testing of Codesys program
Last updated: 2023-12-08

Inheritance of axis ^{CODESYS Forge talk (Thread)}
Inheritance of axis
Last updated: 2024-01-12

Losing focus of variable ^{CODESYS Forge talk (Thread)}
Losing focus of variable
Last updated: 2024-03-26

Post by chocojun on CODESYS WebSocket Client (IIOT Library) ^{CODESYS Forge talk (Post)}
Has anyone used a library related to websocket client? I will be in charge of websocket client in CODESYS, and websocket server in python. In CODESYS, I will use WebSocketClient(FB) WebSocketRead(FB) WebSocketWrite(FB) to configure the client, Does anyone know an example of how to use it? Please help me.
Last updated: 2025-03-31

Post by chocojun on CODESYS WebSocket Client (IIOT Library) ^{CODESYS Forge talk (Post)}
Has anyone used a library related to websocket client? I will be in charge of websocket client in CODESYS, and websocket server in python. In CODESYS, I will use WebSocketClient(FB) WebSocketRead(FB) WebSocketWrite(FB) to configure the client, Does anyone know an example of how to use it? Please help me.
Last updated: 2025-03-31

Post by fmon on Modbus TCP client reconnection problem ^{CODESYS Forge talk (Post)}
Problem solved The client modbus cycle time was linked to a task at 500ms. Whereas the channel modbus was at 200ms. Certainly problem of packages synchronisation. I let the client modbus cycle time to be handled by itself (See attachement) --> "Use the bus cyle time parameters" (traduce from french) See attachement
Last updated: 2025-03-18

Post by fmon on Modbus : dis- / re-connect cable: modbus does not re-start ^{CODESYS Forge talk (Post)}
Problem solved The client modbus cycle time was linked to a task at 500ms. Whereas the channel modbus was at 200ms. Certainly problem of packages synchronisation. I let the client modbus cycle time to be handled by itself (See attachement) --> "Use the bus cyle time parameters" (traduce from french) See attachement
Last updated: 2025-03-18

Post by landhen on Codesys HMI with a non codesys programmed controller ^{CODESYS Forge talk (Post)}
Hello, I would like to know, if it is possible to use codesys for a visualization of parameters in a controller (not PLC) not programmed using Codesys. I intend to use codesys for the visualiztion, and do not know yet what I may require.
Last updated: 2024-02-21

Post by macros8 on Alarm Management - latched variable represented as Text list ^{CODESYS Forge talk (Post)}
Hi, I haven´t noticed you put the comment here. I thing it´s a bit different. What I want is to have detail errors of technology in data type e.g. INT. This variable I would latch to the corresponding error msg but I would like to get it convert to text from the text list and not keep it in INT form. Example. Main error Valve Error: SubErrors 1 - Both sensors 2 - Not retracted in time 3 - Not pulled out in time In HMI Main error + latch SubErrors => "Valve Error: Both sensors" The benefit is that text lists are part of translation and can be easily manipulated. I know I can create whole string msg in PLC but then, it lose advantage of Alarm management. Thanks. M.
Last updated: 2023-11-07

Post by mattplc on Opaque NodeId in the OPC UA server ^{CODESYS Forge talk (Post)}
Same for me. I have problems with UAExpert too. Can't see the Current Value of Enum and can't control. Did some Tests with Python opcua library. Not working with the communication manager so far.
Last updated: 2025-01-09

Post by mattplc on Opaque NodeId in the OPC UA server ^{CODESYS Forge talk (Post)}
Same for me. I have problems with UAExpert too. Can't see the Current Value of Enum and can't control. Did some Tests with Python opcua library. Not working with the communication manager so far.
Last updated: 2025-01-09

Post by mattplc on Opaque NodeId in the OPC UA server ^{CODESYS Forge talk (Post)}
Same for me. I have problems with UAExpert too. Can't see the Current Value of Enum and can't control. Did some Tests with Python opcua library. Not working with the communication manager so far.
Last updated: 2025-01-09

Post by mattplc on Opaque NodeId in the OPC UA server ^{CODESYS Forge talk (Post)}
Same for me. I have problems with UAExpert too. Can't see the Current Value of Enum and can't control. Did some Tests with Python opcua library. Not working with the communication manager so far.
Last updated: 2025-01-09

Post by mattplc on Opaque NodeId in the OPC UA server ^{CODESYS Forge talk (Post)}
Same for me. I have problems with UAExpert too. Can't see the Current Value of Enum and can't control. Did some Tests with Python opcua library. Not working with the communication manager so far.
Last updated: 2025-01-09

Post by mattplc on Opaque NodeId in the OPC UA server ^{CODESYS Forge talk (Post)}
Same for me. I have problems with UAExpert too. Can't see the Current Value of Enum and can't control. Did some Tests with Python opcua library. Not working with the communication manager so far.
Last updated: 2025-01-09

Post by mattplc on Opaque NodeId in the OPC UA server ^{CODESYS Forge talk (Post)}
Same for me. I have problems with UAExpert too. Can't see the Current Value of Enum and can't control. Did some Tests with Python opcua library. Not working with the communication manager so far.
Last updated: 2025-01-09

Post by eschwellinger on Virtual Control SL Profinet connection ^{CODESYS Forge talk (Post)}
means not licensed demo mode.. use the Licenserver on the host and apply a license and add the Ip of the license server then it will be green.
Last updated: 2025-02-28

Post by timvh on How to correctly create a device descriptor (.devdesc.xml) for a custom Linux ARM64 PLC in CODESYS 3.5.21.20? ^{CODESYS Forge talk (Post)}
Yes, this is possible with the Toolkit. We only server customers in the Benelux that do this, so contact your local CODESYS distributor, or contact the sales team of CODESYS Germany.
Last updated: 2025-10-07

Post by stiller on OPC-UA ApplicationUri / ProductUri ^{CODESYS Forge talk (Post)}
Hello! Is there a way to change ApplicationUri and ProductUri of the OPC_UA server? I can not find any information about it. Does someone have a clue? Thank you in advance!
Last updated: 2024-05-10

Post by bmatlove on Variable Length Array - Cannot mix variable and fixed length dimensions? ^{CODESYS Forge talk (Post)}
Using Codesys 3.5.18.30 I am trying to work with an array of variable length in one dimension, but known in the other dimension. For example, using an array that represents a list of items, each with an attribute profile. I do not know how many items will be in the list, but I know that every item has 5 attributes, like size, weight, etc. Codesys does not seem to be able to accept this. I have referenced Data Type: ARRAY OF documentation page, which is not explicit if variable & fixed length array dimensions can be mixed. In the VAR_IN_OUT scope, I initially tried MY_ARRAY : ARRAY [*, *] OF REAL; which was no problem, of course. I then modified it to MY_ARRAY : ARRAY [*, 1..5] OF REAL; which throws C0006: ', or ]' expected instead of '..' among consequent downstream errors. I then used the Auto Declare -> Array Wizard, which accepted (asterisk)-(asterisk) and 1-5 for 2-dimensional lower and upper bounds. It output: MY_ARRAY: ARRAY[*..*, 1..6] OF INT; which throws the same error stream. What's the deal here? Is this possible?
Last updated: 2025-05-23

Post by martinlithlith on Relay board / relays for raspberry pi 3 b+ ^{CODESYS Forge talk (Post)}
hi! im planning a project on a raspberry with Codesys. For this I'll need a number of relays to control heating and fans, all a max of 24v and about 2a. How would i know if the board / relays i buy will be working with Codesys? Does every hat work or does it need a library/driver? is there a list of drivers/libraries created? as this is a hobby project all tips on a relay board or single boards that works with codesys and not to expensive are very welcome.
Last updated: 2023-09-03

Post by konradkmiller on Variable assignments ^{CODESYS Forge talk (Post)}
I have a snippet of code that I was given as a reference in ST. ** ModbusMasterRTU( xConnect:= TRUE, IPort:= IoConfigGlobals.COM1, // IoConfigGlobals.RS232485Interface, // COM1=Front Port / Serial module = Name of module in Devices structure I/O list udiBaudrate:= 19200, usiDataBits:= 8 , eParity:= WagoTypesCom.eTTYParity.None , eStopBits:= WagoTypesCom.eTTYStopBits.One , eHandshake:= WagoTypesCom.eTTYHandshake.None , ePhysical:= WagoTypesCom.eTTYPhysicalLayer.RS485HalfDuplex, xIsConnected=> xIsConnected , xError=> , oStatus=> , eFrameType:= WagoAppPlcModbus.eMbFrameType.RTU , tTimeOut:= T#1S, utQuery:= utQuery , xTrigger:= SEND, utResponse:= utResponse)** What is the meaning of => in this context?
Last updated: 2024-07-20

Post by gabrielarffa on Modbus TCP/IP having problems with global variables ^{CODESYS Forge talk (Post)}
I'm using Modbus TCP/IP to communicate Codesys with Elipse E3 as the master for a college project. I have made a list of global variables to organize the programming in two different POUs. The problem is, when I try to do the mapping of variables, the program informs me of an error due to the identifiers having a "." on their names. Do I have to reorganize my code to make it an unified block or is there a way to declare their names without changing all the code structure?
Last updated: 2025-05-20

Post by gabrielarffa on Modbus TCP/IP having problems with global variables ^{CODESYS Forge talk (Post)}
I'm using Modbus TCP/IP to communicate Codesys with Elipse E3 as the master for a college project. I have made a list of global variables to organize the programming in two different POUs. The problem is, when I try to do the mapping of variables, the program informs me of an error due to the identifiers having a "." on their names. Do I have to reorganize my code to make it an unified block or is there a way to declare their names without changing all the code structure?
Last updated: 2025-05-20

Post by martinla on New Codesys Library Dependencies ^{CODESYS Forge talk (Post)}
When creating a new Codesys library, I am getting 2 errors for missing libraries. I can see that I am using newer versions of these in the library manager (3.5.17.0 and 3.5.19.0 opposed to 3.5.8.0 and 3.5.7.0 stated in the errors). IDE Version is V3.5 SP19 Patch 6. The "Download missing libraries..." button in Messages list is not doing anything. Why is it looking for older versions of these libraries? Can this be fixed by using the newer versions? How can I download & install the older version of these libraries?
Last updated: 2024-02-29

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