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Post by timvh on Modbus TCP & RTU with Control for Linux SL ^{CODESYS Forge} ^talk ^(Post)
It seems you have 2 network interfaces. Did you try eth1? Did you already configure the IP address for this interface in Linux? If yes, then maybe undo this. - or only set eth0 in the Nic configuration without anything else (so no IP address, because this is already set in Linux). For more information about the Nic settings, see (probably already read it?): https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_obj_deploy_control_sl_configuration.html PS, if you only want to run CODESYS Control SL, you don't necessarily need the Virtual PLC variant. You could also install and run the CODESYS Control SL Runtime in the Host operating system. This way you should also be able to access the serial port and directly access all ethernet ports. Maybe this is easier?
Last updated: 2024-10-23

Post by wbj0t on Update project from SP20 to SP21 ^{CODESYS Forge} ^talk ^(Post)
Hello everyone. I have a problem: I installed new version of codesys IDE. When I try open project in this new version, I have many errors about Visu: rectalnge/button/frame/etc does not exist. How update properly project? 20+ pages of visu pages from 100+ frames and all visu elems looks like "Error image". It is not problem of SP20->SP21. Any update has problems from visu side.
Last updated: 2025-06-09

Post by gerdkoch on OPCUA Datasource, can not login... ^{CODESYS Forge} ^talk ^(Post)
Hi, please share your codesys ide version and the version of the communication addon. Do you use encrypted communication? Did the browsing in the ide work? Did you create the certificate for the client in the security screen? BR
Last updated: 2023-11-27

Post by arcadium on Library ENUM text representation in visualization ^{CODESYS Forge} ^talk ^(Post)
Hello, Maybe someone could help with this. When I add ENUM to a text field I get the number instead of the text. For my own ENUM variable I have declared and enabled text list value is displayed as text, but I need enum text displayed from softMotion and other internal FB's. In the picture I have one of desired ENUM variable setup, but in the visu I have number, but in the watch window it's text. There is probably some checkbox to tick, but was looking for an hour, can't find a solution. Would apreciate some help
Last updated: 2024-12-24

Post by jp23 on Unable to Connect to Modbus RTU Device ^{CODESYS Forge} ^talk ^(Post)
Hi all, I am attempting to use the Control Win V3 soft PLC to control a WAGO 750-315 remote I/O system via modbus RTU communication. I am struggling to connect to the device. I have been following this tutorial: https://www.youtube.com/watch?v=YlRfkESaNds I have setup my devices as shown in the images below. I have verified that my com port settings are correct as I am able to connect/control using modbus simulator software with these settings. I have also connected to a modbus master simulator program as instructed in the video, but the orange triangles will not go away. Additionally, I have updated my settings to 485 using the PLC shell. I have also set "always update variables" to enabled (1). Serial port, PCI-Bus, and modbus serial device status all show as "Not Running."
Last updated: 2024-08-26

Post by timvh on PLCOpenXML Export/Import with Visualisation ^{CODESYS Forge} ^talk ^(Post)
A Task is a standard IEC 61131-3 object, so logically that you can export the VISU_TASK. A visualization is no standard IEC 61131-3 object, so not compatible with other IEC tools. Just use the standard export / import functionality. These files are not IEC compatible and can only be used in CODESYS. But these do support visu objects.
Last updated: 2025-01-09

Post by berto on Opening PDF in Web Browser in Target Visu HMI ^{CODESYS Forge} ^talk ^(Post)
Hi everybody, I've been facing problems with the PDF visualization in Web Browser. I am trying to open a pdf file called 'sample.pdf' which I manually saved inside PlcLogic/visu folder. I am setting the web browser URL as: 'http://127.0.0.1:8080/sample.pdf' but I get 'refused connection'. I got a similar error trying to open https sites and I discovered that I can only open http websites. Opening 'http://de.wikipedia.org' everything works fine. I also tried to check using code whether the sample.pdf is present in the directory. Unfortunately, when I try to read directories of 'PlcLogic' I get file FILE_OPERATION_DENIED (I am using File.DirList). I would like to be able to open PDF files in web browser. Possibly to move new PDF files in the folder as my customer wants to display different pdf manuals on the hmi. Here you find some screenshots and my .project. I am using Codesys 3.5.19.70. Best regards, Berto
Last updated: 2024-07-11

Post by patrik on Wish: CODESYSControl.cfg - again ^{CODESYS Forge} ^talk ^(Post)
Really good post. I hope that it gets seen by CoDeSys staff. I often find the documentation lacking when it comes to using CoDeSys in more complex ways. If using standard "basic PLC functionality", then it's fine and functions are documented in a sufficient way. Once you go outside of that bubble then I find the documentation not enough. CODESYSControl.cfg is a good example of this. And why isn't more of this integrated in the IDE. like changing port of the webserver. Why is it hidden in this file and not accessible through the IDE. It feels like a layer of complexity purposely left in so you don't change it if you don't know what you are doing. Like the argument is if you have the know-how to find the file you have the know-how to edit it. I find the documentation lacking when it comes to more complex libraries too. Like the element collections library. there is parameters I still don't quite know what they do. I can't find any documentation about them. There is an example project to download from CoDeSys so you can see how you are supposed to set your factories up. I leave some parameters like it is in the example. Should I? I don't know. Does it work. Yes. But I could perhaps create memory leaks if I get something wrong and I don't see that until way later. In the create method of your element factory you have a function called __vfinit and you just have to accept that it works. Why can't I get insight in what it does through documentation? Don't CoDeSys want us to know how these work so we can't use them to accidentally break something? I find the error logging lacking too. I've had the CoDeSys service crash but it doesn't say why. I've seen windows noticing the crash but no error code was sent or error message. Also in my current issue where the application fails to start after power outage. I can see in the log that it fails to load retain in the application as one log entry and application failing to start as another. But why? Why does loading the retain fail? give me more information! Is it just a skill issue with me? I don't know. If it is then I'd still want CoDeSys to step up their game when it comes to documentation. I'm sorry if a lot of frustration comes though in this post. I really like the product and what I can do with it compared to other PLC brands.
Last updated: 2024-11-21

Post by salvadegianluca on SysPlcCtrl23 and C0338: The library 'cmperrors interfaces, 3.5.5.0 (system)' is supported just in 32 bit applications ^{CODESYS Forge} ^talk ^(Post)
Good afternoon to everyone; I'm stuck with this error and I don't know how to get out from it... I tried several time googling for alternative systems to control the PLC applications and resets but without success. I would like to realize the possibility to reset the CPU and to start/stop the applications as it was possible with the SysPlcCtrl23, but this library is no longer supported in 64 bit systems and it seems due to the cmperrors interfaces sub library that was included in the above said one. Someone found a work around for this issue?
Last updated: 2024-06-14

Post by jroddball79 on PM556-TP-ETH — How to change IP address without overwriting the PLC program? ^{CODESYS Forge} ^talk ^(Post)
Still looking for a solution. I have gathered more information that might help: Device: ABB AC500 PM556-TP-ETH Firmware version: 2.4.2.14993 (dated 2014) Open ports confirmed: 502 (Modbus TCP), 1200 and 1201 (CODESYS runtime). SSH (22) and HTTP (80) are not reachable. No SD card in the PLC. I can connect via Automation Builder using the current IP and Online Login works, but I have no original source project available. Automation Builder requires a full PLC download to apply IP changes, which we want to avoid as it would overwrite the running program. Any guidance on how to change the IP without a full download would be greatly appreciated. I am also open to solutions using third party tools, DCP protocol, or scripts. Thank you
Last updated: 2026-05-22

Post by jegerjon on Same program to more than one PLC ^{CODESYS Forge} ^talk ^(Post)
I guess you could archive the project, open the archive and go online. Is that suffiecient for your use case?
Last updated: 2023-08-25

Post by gennady on Licensing info not available. ^{CODESYS Forge} ^talk ^(Post)
Hello, I'm having the same problem. But I used HCFA PLC, the error message is same.
Last updated: 2024-07-09

Post by eschwellinger on Beckhoff EL6652-0010 with Codesys ^{CODESYS Forge} ^talk ^(Post)
this is not supported - no config pages available for this. Why not just use the EIP on your NIC of the plc?
Last updated: 2025-03-21

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