about the dont use font height in the xml file ^{CODESYS Forge talk (Thread)}
about the dont use font height in the xml file
Last updated: 2014-06-10

Post by eschwellinger on Scara3 kinematic robot error ^{CODESYS Forge talk (Post)}
Please check the jitter in the online taskmonitoring. cylce time of the motion task and jitter in case of the error.
Last updated: 2025-12-29

Post by miltos on licensing question ^{CODESYS Forge talk (Post)}
Greetings to all, I'm working on a webvisu project on control win V3 x64 runtime, and have purchased 3 licenses for my application. -Codesys Control Standard M -Codesys Visualization L -Codesys Communication M I have them installed on a Codesys usb dongle When I try to download the program, a login error window appears with the message "No valid license found for the webvisualization". The control win v3 communicates with 3 plc, and have enabled communication over codesys V3 communication by adding one datasource for every plc in the datamanager. If I remove the data manager from the project, the rest of the visualisation can be downloaded normally. Do I need to purchase another License and which one? Please find attached the software metrics and the error screen.
Last updated: 2025-10-31

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 arjunk 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)}
I’m trying to integrate a custom PLC into CODESYS so that it appears under the Device section. From what I understand, this requires a .devdesc.xml device descriptor file. I attempted to create the XML manually, but whenever I try to install it in order to generate a .package file, CODESYS crashes. CODESYS version: 3.5.21.20 Target PLC: Linux ARM64–based My questions are: Is there an official or easier way to generate a valid .devdesc.xml file for a custom PLC? Are there tools, templates, or examples that can help ensure the XML is structured correctly and won’t cause crashes? For Linux ARM64 targets specifically, is there a recommended starting point (e.g., modifying an existing device descriptor)? Any guidance or best practices for creating and packaging custom device descriptors would be greatly appreciated.
Last updated: 2025-10-06

Post by wiresplus on How to Connect / Go Online without re-downloading the project ^{CODESYS Forge talk (Post)}
Hello, I have a PLC in a remote location. I can connect to it, but when I use a different PC, it asks me to re-download to the PLC - which will a) interrupt production and b) cause version issues. Codesys being open-source, if someone else has made changes, I need to be able to connect, upload the current project, compare it with mine and then decide what next. Every time I connect, it says Warning: An application 'Application' is currently in RUN mode on the PLC. As there is no matching compile information, this existing application needs to be replaced. Click 'Yes' to download the latest code or 'No' to abort. What am I doing wrong?
Last updated: 2024-04-13

Post by timvh on VisuElems.CurrentUserGroupId is not stable ^{CODESYS Forge talk (Post)}
I'm not sure what you are trying to do, but getting the CurrentUserGroupID like this will not work, because there could be multiple Visualization Clients and each can have a different user that is logged in. Also when you go online with CODESYS and open an Visualization, this is counted as a client. Probably this is the reason you see it changing. What you can to is "iterate" over all clients and then see which user is logged in on which visualization Client. For this you need to add the Visu Utils library to the project and call the FbIterateClients. See https://content.helpme-codesys.com/en/libs/Visu%20Utils/4.4.0.0/VisuUtils/VisuActionUtilities/Function-Blocks/FbIterateClients.html fbClientIteration( xExecute := x_Execute, itfClientFilter := VU.Globals.AllClients, itfIterationCallback := fbIterator, xDone => x_Done, xBusy => x_Busy, xError => x_Error, eError => e_Error); The fbIterator, in the example above, should be an instance of an FB which you have created yourself and this must implement VU.IVisualizationClientIteration. For example: FUNCTION_BLOCK FB_ITERATOR IMPLEMENTS VU.IVisualizationClientIteration Then automatically the corresponding methods will be called. In the HandleClient Method, you will get an interface to the client(s) and then you can get the current user through this interface: itfClient.UserGroupId You can also get the UserName: itfClient.UserName
Last updated: 2023-11-14

Post by tokamk on Dynamic setting of the modbus tcp/ip slave ip address ^{CODESYS Forge talk (Post)}
Hello, I'm working on a project which includes Panel-PC which communicates with a PLC through Modbus TCP/IP. On the PLC I have a CODESYS code which has Modbus slave objects. The Modbus slave objects have to have manually set IP address in order for them to work properly and the Ip address has to be the PC-Panels's IP. This project is going to a customer and they're using their own IP address realm. So, my question is that is it possible to configure these slaves in some other way, so that the customer doesn't need to modify the CODESYS project? I was thinking that would it be possible to set the IP address of these slaves from external source?
Last updated: 2024-02-15

Post by bnewman on Delete PLC Log ^{CODESYS Forge talk (Post)}
I also would like to now how to clear the PLC Device Log. @eschwellinger are you saying there is no way to clear the log? When I am debugging I want to clear the log, it would make things some much easier to find.
Last updated: 2023-10-17

Post by fabiodasilveira on PLC Shell commands via ST Code ^{CODESYS Forge talk (Post)}
Thank you, Bingo. Your idea of adding the change to the start up process works. However, I am still intrigued with the fact that SysSockSetIPAddress(strEthernetPort:= '0', strIPAddress:= '192.168.2.12') is different from PLC Shell (setipaddr 0 192.168.2.12).:-(
Last updated: 2025-03-04

Post by esave on Stepper Drive with Ethercat ^{CODESYS Forge talk (Post)}
Thank you very much Florian The SoftMotionLight package is actually more expencive than the normal SoftMotion. What is exactly the difference? Does my PLC need to be compatible with SoftMotion or does this work with any PLC?
Last updated: 2024-03-22

Post by timvh on IoDrvModbusTCP_Diag not defined when using MODBUS ^{CODESYS Forge talk (Post)}
Most likely related to the Device Diagnostics functionality. Double click on your device (PLC), go to the tab "PLC settings". Enable the advanced option "Enable diagnosis for devices". Build your application again.
Last updated: 2024-04-15

Post by timvh on Codesys v3.5.22.10 - Fail to create a project Archive ^{CODESYS Forge talk (Post)}
There is an issue with adding the visu styles to the archive with Visu add-on 4.9.0.0 and 4.9.1.0. When you create the projectarchive disable the option to add the style(s) to the archive. CODESYS support informed me it will be fixed with visu add-on 4.10.0.0 (May 26th 2026). An alternative is to start CODESYS as Administrator. Then it will work with styles as well. You could start CODESYS as Administrator by first opening the CODESYS Installer. At the bottom you can select to start the Installer as Administrator. If you do this and then start the CODESYS version from this installer, it will work.
Last updated: 2026-04-25

Post by nathant on Easiest RevPi PLC to configure HMI visualization with? ^{CODESYS Forge talk (Post)}
I'm worried that the Core SE (which I was originally going to go with) will not be straight foward in terms of setting up the HMI visualization. This is for an offline application, if that matters.
Last updated: 2023-11-28

Post by nathant on Easiest RevPi PLC to configure HMI visualization with? ^{CODESYS Forge talk (Post)}
I'm worried that the Core SE (which I was originally going to go with) will not be straightfoward in terms of setting up the HMI visualization. This is for an offline application, if that matters.
Last updated: 2023-11-28

Post by runtimevictor on virtual plc vPLC configure nics ^{CODESYS Forge talk (Post)}
Hello, When I add 2 nics in vPLC this happens to me..., why is it? If I just put one of the two NICs, the vPLC runtime instance starts running correctly...
Last updated: 2025-02-02

Post by felipemsgarcia on DELTA PLC AS228T ^{CODESYS Forge talk (Post)}
Hello, You can create a program in ST for AS228T using either DELTA ISPSoft or DELTA DIADesigner. The only DELTA PLCs/Controllers I know of compatible with CODESYS are AX-3 and AX-8 series. You will need to install the proper packages, though. Cheers!
Last updated: 2025-03-07

Post by felipemsgarcia on Edge Gateway online, but PLC is not online ^{CODESYS Forge talk (Post)}
Hello Edwin, I sent the info through CODESYS store my question, as I was afraid that I could be exposing sensitive information here in the forum. Thank you very much!
Last updated: 2024-01-10

Post by awarginaire on Codesys state running automatically ^{CODESYS Forge talk (Post)}
Hello, I would like the PLC to open automatically in etat running. I have created a boot project but on startup the state is always stopped. What should I do?
Last updated: 2024-01-18

Post by ademarvribeiro on warning message ^{CODESYS Forge talk (Post)}
this mean your project dont have compile information. try to upload code from PLC and them go online. To know the differences between online program and your project clica in Details, when the message pop-up.
Last updated: 2024-04-14

Post by aniket-b on Scara3 kinematic robot error ^{CODESYS Forge talk (Post)}
I am using Scara3 kinematic with EtherCAT PLC. The robot stops at the same place randomly after few cycles. Check attached image. I am getting SMC_ERROR.SMC_DI_FIELDBUS_LOST_SYNCRONICITY in all 3 axes.
Last updated: 2025-12-19

Post by paterad on Edge gateway ^{CODESYS Forge talk (Post)}
Hello, I am struggling with Edge gateway to the automation server. It is not possible to establish the link. When I create the Edge in codesys and get it to Automation server, it is red, unable to connect. Scan fails. RPi 4B Runtime 4.13.0.0 Edge gateway 4.13.0.0 Codesys 3.5.2.40 Any idea what to chase? I have been using previous versions of edge gateway. Now I updated all to latest versions, failed. Frustrating.
Last updated: 2024-12-03

Post by andrej on Creating, using an external Function. ^{CODESYS Forge talk (Post)}
Hello all, could you tell me whether I need an additional license in order for v3x64 to execute the DLL? Is there some manual on how to proceed? Other than the rather generic message loading Component failed Lib_XMATH.dll I have no further hints. Many thanks for your feed back. PS: I tried a similar experiment (i.e. generating a native dll for windows and having it executed by the Python VM this worked without an issue).
Last updated: 2025-05-05

Post by squiggleypuff on RemoteTargetVisu creates Unresolved Reference ^{CODESYS Forge talk (Post)}
I have a project with a Festo CPX-E-CEC-C1-PN PLC (Run-time version 3.5.12.50) that I have been developing on just fine using Codesys V3.5 SP19 Patch 5 (64bit). I am at the stage where I wanted to use the Festo HMI screen, and have added a RemoteTargetVisu object to my application. After adding this object, I am no longer able to log in to the PLC as I get an Unresolved Reference warning for 'USERMGRUSERGETPROPERTY' towards the end of the download process. I was able to find this post (https://forge.codesys.com/forge/talk/Visualization/thread/fc686a6cb2/) where the two possible solutions are to "set the placeholder to emtpy" or update the runtime. Problem is, I don't know how to do either of these things, as I'm still very green in Codesys land. I'd be happy to update the Festo PLC runtime, as that seems like the better option, but have not had any luck in finding a tutorial for this online. If anyone could point me in the right direction I'd appreciate it.
Last updated: 2024-03-19

Post by em1681 on Modbus RTU over 750-652 ^{CODESYS Forge talk (Post)}
Hi, It's my first time operating in Codesys 2.3, but I have done a good amount of Codesys programming, so I'm a little familiar. I haven't done a lot of RTU, but a lot of Modbus TCP. I don't have the PLC in my reach at the moment, but I'm trying to be a little ahead. We're adding the 750-652 module to read energy from a flowmeter over RTU. There will only be 1 slave. I attached pictures of my current hardware, PLC code, the register datasheet from the slave and the only modbus serial library I seem to have available. I'm uncertain if this will work. Any help or clarification on how things work will be greatly appreciated. Thanks in advance.
Last updated: 2025-09-01

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