Post by pistola on Visualization Size - Set Layout ^{CODESYS Forge talk (Post)}
I feel like this is a setting issue and I can't seem to find the right setting. I have a new project that I'm looking to add visualizations to however when I select my template size (1280 x 800) I make sure in my properties under the visualization tab, I have "Use specified visualization size" selected and my width set at 1280 and height set at 800. Now within my visualization editor I can't see to get the size outside of my template to grey out. I've attached a PDF showing what I'd like the visualization editor to look like and what mine currently looks like. Any help would be greatly appreciated.
Last updated: 2024-11-12

Post by simone on Collapse all ^{CODESYS Forge talk (Post)}
Hi, I'm wondering if it exist a button or a keyboard shortcut (much much better) for "collapse all" the open folder on a codesys project. It would really be nice to have. Also: Are there some options or configuration for set a default zoom for the different editor (or even one global), for example I would like to have 100% on ST, LD editor and have 80% on Visualization Editor; and also have a button to set all the zooms to default, now it seems that every file mantain the one previously set. I'm working with the 3.5.20.10 right now Thanks!
Last updated: 2024-11-21

Post by kevinrn on Github Actions CI/CD tasks - development topic ^{CODESYS Forge talk (Post)}
Hi @steven-schalm, Thank you for your inquiry, and I apologize for the delayed response! We use GitHub Actions cloud runners for this purpose, as it eliminates the need to maintain our own build runners. You can get started by creating a free GitHub account, which includes complimentary minutes for running actions on Windows runners. You can find an example implementation in our repository: https://github.com/powerIO-GmbH/action-codesys-setup I'm currently working on making additional features public, including: Git checkout functionality, Code signing, Custom script execution However, these additions require some preparation before release. Feel free to contribute to the project! BTW: You can also execute this locally, even the yml files with nektos/act on your windows dev machine.
Last updated: 2024-11-27

Post by imdatatas on MC_CamIn did not work properly with SMC_FreeEncoder on SoftMotion 4.17.0.0 ^{CODESYS Forge talk (Post)}
Hi @tk096, Thank you for your response. Here is example project file and some screenshot for your analysis regarding this matter. In order to reproduce the problem on your side and make it independent of the hardware, I simulated the encoder counter incrementally for the master in this example. I configured a virtual axis as the slave motion axis. The problem occurs in the same way in the real hardware configuration (servo drive connected to Ethercat and hardware incremental encoder) in MC_CamIn. I hope this example helps you see the problem on your side and understand and find the source of the problem with FreeEncoderAxis for Softmotion 4.17.0.0. Best Regards, Imdat
Last updated: 2024-12-19

Post by sigurdrb on Read codesys version in the codesys application ^{CODESYS Forge talk (Post)}
Hi! I want to read the codesys version into the project, so I can highlight it in the SCADA system. VAR dwVersion : DWORD; END_VAR SysTarget.SysTargetGetVersion(pulVersion := ADR(dwVersion)); This gives me the value 100859909. I tried to search ths up and found som older post (https://forge.codesys.com/forge/talk/Runtime/thread/a55981ff4d/) that said each 4 bytes reads a number in the version. Example is 50662666 = 16#03050D0A which reads to V3.5.13.10 When I run this code I get the value 100859909, which I cant translate to anything meaningful. I am running it on Codesys V3.5.19.70. Help appreciated!
Last updated: 2025-01-17

Post by tyleretn on Codesys 3.5 SP18 P4 Freezing on Library Update ^{CODESYS Forge talk (Post)}
I have created a library with both code and visualizations to be used in multiple other projects. After I update the library version into the library repository, I have much difficulty updating the version into the main project. I can always update the library version in the Library Manager just fine. My issue, is sometimes Codesys will freeze when opening the visualization that uses the library visualizations. Sometimes it opens, but freezes when I try to access the library visualizations from the Visualization Toolbox. I try letting Codesys run for upwards of 4+ hours and it is stuck in this state. On very rare cases I have no issues and can continue with my work. I haven't found a consistent reason or work around. Has anyone else had this happen?
Last updated: 2025-02-27

Post by alberto on ExportPLCopenXML is failing ^{CODESYS Forge talk (Post)}
I'm trying to export my whole project through the option ExportPLCopenXML. It seems working, but when I'm trying to import the xml I have the following error during the importation process: Object reference not set to an instance of an object. It seems a usual issue with this process that affects to the pointer to user classes inside a procedure. I receive this error for two general functions that have this pointer declarations in the VAR_INPUT section. It seems a bug into the export/import process of CodeSYS and I couldn't skip it so far. Anyone could help me? Thanks in advance.
Last updated: 2025-03-15

Post by r-c-r on SM3RaspiStepper 0.0.0.6 issue ^{CODESYS Forge talk (Post)}
Hello, I noticed that version 0.0.0.6 is now available, so I tested it using CODESYS V3.5 SP19 Patch 7 and SoftMotion 4.17.0.0. While the project compiles and downloads without issues, I encountered a problem with the 'Enable: GPIO pin number that is set when the axis is enabled (with MC_Power) (0: not used)' functionality — it no longer works (HIGH level not present at the output pin). I observed the same behavior with version 0.0.0.5, whereas version 0.0.0.4 functions correctly. Could you help me identify what might be causing this issue or suggest how to resolve it? Thanks.
Last updated: 2025-03-19

Post by agentcousto on [Bug report] Issue with Importing XML Files Containing "POINTER TO" Variables in Codesys Platform Plugins Versions 2.7 and 2.8 ^{CODESYS Forge talk (Post)}
Hello, I have developed a Python script that I run to import XML files into my project. For this, I use the Python function import_xml(). Everything was working fine when I was using Codesys platform plugins version 2.6.1.2320, but since I upgraded to versions 2.7 and even 2.8, some files are no longer imported correctly. After some research, I identified that all the files containing variables of the type "POINTER TO" are affected. I have attached a screenshot of the error I am encountering. Do you know about this bug? Do you plan to fix it?
Last updated: 2025-03-26

Post by hemuv on Dialog Open ^{CODESYS Forge talk (Post)}
I'm programming an HMI for a machine. I want to log all the parameter's changes (used text field for displaying and changing) for particular User levels. Created a Numpad and want to log oldvalue and Newvalue on 'ok' Button press. To retrieve the oldvalue, i check if the dialogue opened is my Numpad, Then I retrieve the dialogue interface via GetDialogInterface(ADR(myNumpad)) --> numpadData.stVariableValue which contain my oldvalue and save it locally. Problem is sometimes i retrieve the data and sometimes not. Also observed when Numpad Dialogue is Opened, VisuDlgUtil_IsDialogOpen returns False in some cycles.Attached you will find my Project. please let me know what went wrong or if there is a better approach to collect old and New Value of a textfield. Thank you.
Last updated: 2025-03-26

Post by anlebr on Alarm group template - Is it not possible with several instances? ^{CODESYS Forge talk (Post)}
Hi In the POU section of my project I have created a Fan function block and defined an alarm group template for this FB with one alarm (Motor fault). In the PLC program I define two instances of the fan function block. When going to the alarm configuration and pressing "Create or update alarm instances", I get two alarms listed. So far so good. However, when I start my program and check the alarm table in the visualization I only see one alarm, even if both are active. Am I doing something wrong, or is it not possible to define alarms on a function block level and get one set of alarms per instance of the function block?
Last updated: 2025-04-01

Post by kut69 on Retain / Persistent Variables in Codesys for Raspberry Pi ^{CODESYS Forge talk (Post)}
Hi, I am interested in details about the .ret file in the filesystem. I have already a project where the file is used (write on demand, read by start) and I want to share it as 'default input' for test devices using the identical application. Opening the .ret file content in a hex editor (I only use a single string retain var) I asked myself what the meaning of the first 24 bytes is. It neither contains a handle to the application nor a reference to the variable. Is this maybe a timestamp? Or a CRC/checksum? Regards, Thomas
Last updated: 2025-05-19

Post by qkkk on Device Scan ^{CODESYS Forge talk (Post)}
Hello all, I have developed a custom I/O driver in CODESYS that communicates via a Unix Domain Socket. In my DeviceDescription.xml, I have set up the following: <scan supported="true"> <scanfbinstance fbname="IOScanDevice"> The goal is to allow the user to scan for connected I/O modules from the CODESYS GUI ("Scan for Devices") and automatically populate the device tree with detected submodules.</scanfbinstance></scan> The function block IOScanDevice is implemented in the driver library and added to the main device's FB instances. However, when I initiate the scan from the GUI, nothing appears to happen the function is not executed. Is there an example project or driver (open source or from CODESYS Forge) that demonstrates a working custom scan implementation?
Last updated: 2025-05-26

Post by hclai on Maximum Array Index Issue ^{CODESYS Forge talk (Post)}
I was trying to use a table object in visualization. I want to dynamically show the valid rows in the table. However, it does not work when there is 1 row. i put the maximum array index to 1. it does not show the 1st row. when i change to 2, it show the second row only. my project with older visualization profile version is working perfectly fine. I did some test and realized that i must use a Row Selection variable to change from 0 to 1. With this change of Row selection, then the row 1 will show up.
Last updated: 2025-06-19

Post by alsiddhartha on TextList name error (fake) ^{CODESYS Forge talk (Post)}
Hello, I’m developing a program and for some reason I got this error: C0193: Name '2,Recipe #2GVL' is no valid identifier I was creating a combo box and creating a TextList for my recipe. I couldn't find where the error was, until in the combo box properties in the 'Text List' property in the options it gives me to select, I found '2,Recipe #2' to be able to select (I never created a list with this name) and I can't find a way to delete that option or I can't find where that list is. I tried to delete the TextLists, delete the combo box, to clean the project, but the error still there. How can I delete this option (2,Recipe #2)? Or how can I fix this error?** Thank you.
Last updated: 2025-06-19

Post by rafa on MODBUS TCP SERVER DONT AUTO-STARTUP ^{CODESYS Forge talk (Post)}
Dear all, I have a project where I have two ModbusTCP communication drivers in the application. It's working normally until a power outage or the installation panel is restarted. As soon as the PLC CPU is restarted, the Ethernet port is OK, but the TCP Server displays an "UNDEFINED" error. I can't reset the error using the diagnostic confirmation or the "mbserver.xConfirmError" bit. I noticed that the error only appears in the "mbserver.byModbusError" memory and the description is "UNDEFINED." The "mbserver.xError" memory doesn't flag an error. When using the warm restart function and then START CPU, the devices return to normal operation. The following demonstration images; The main question is: How can I make devices boot automatically?
Last updated: 2025-07-15

Post by rafa on MODBUS TCP SERVER DON'T AUTOMATIC STARTUP ^{CODESYS Forge talk (Post)}
Dear all, I have a project where I have two ModbusTCP communication drivers in the application. It's working normally until a power outage or the installation panel is restarted. As soon as the PLC CPU is restarted, the Ethernet port is OK, but the TCP Server displays an "UNDEFINED" error. I can't reset the error using the diagnostic confirmation or the "mbserver.xConfirmError" bit. I noticed that the error only appears in the "mbserver.byModbusError" memory and the description is "UNDEFINED." The "mbserver.xError" memory doesn't flag an error. When using the warm restart function and then START CPU, the devices return to normal operation. The following demonstration images; The main question is: How can I make devices boot automatically? Um using Codesys Version 3.5.20.30 Patch 3+ My CPU is a Weintek Cmtx Built-int - ( CMT3092x )
Last updated: 2025-07-15

Post by taywinkel on Virtual Runtime CSV Utility Error ^{CODESYS Forge talk (Post)}
Hello, I am having trouble figuring out the proper location for my virtual runtime to create a .CSV file. No matter the file location I set, I get error 14 (CANNOT_OPEN_DIRECTORY). I have tried multiple different file paths ('/', '/var/opt/codesysvcontrol/PlcLogic', '/var/opt/codesys/'). I understand that there is only certain places that Codesys can read/write. I am also running this virtual runtime in a Podman container. Does anyone know what the location should be? I attached the archive I was using, a project that tests CSV capability that I borrowed from someone else. Thanks!
Last updated: 2025-09-03

Post by ranadheer on Implementation of IEC-104 ^{CODESYS Forge talk (Post)}
Hi Everyone, As we didn't have client for IEC - 104 - only server server is available , so because of that we are trying to make establish the communication between the external simulator as a Client and codesys itself as a server. We are looking for the variable behavior from CODESYS has to change according to the message triggered by the CLIENT (we are using simulator Application like Redisant). We are able to see the log data as the status of triggering the SCS from Client received to the Log data of the codesys device(attached screen shot of it) and in simulator panel we had set the details to trigger the data from Redisant to Codesys. Current Status: The project builds and runs successfully, but I need guidance on how to connect this to an external IEC-104 simulator for testing and visualization by using demo mode.
Last updated: 2025-10-14

Post by ranadheer on Implementation IEC-104 ^{CODESYS Forge talk (Post)}
Hi Everyone, As we didn't have client for IEC - 104 - only server server is available , so because of that we are trying to make establish the communication between the external simulator as a Client and codesys itself as a server. We are looking for the variable behavior from CODESYS has to change according to the message triggered by the CLIENT (we are using simulator Application like Redisant). We are able to see the log data as the status of triggering the SCS from Client received to the Log data of the codesys device(attached screen shot of it) and in simulator panel we had set the details to trigger the data from Redisant to Codesys. Current Status: The project builds and runs successfully, but I need guidance on how to connect this to an external IEC-104 simulator for testing and visualization by using demo mode.
Last updated: 2025-10-14

Post by sumit on Remote Ethernet/ip Adapter communication with scanner running on codesys ^{CODESYS Forge talk (Post)}
Hello there, I have my ethernet/ip adapter (from Texas Instrument) running on Texas Instrument Board and I have configured the scanner on codesys. I have mapped the I/Os and I can see (on wireshark) the frames coming from adapter but I don't see my input variables in scanner get updated, they just stay at 0. I wanted to see the real data that has been sent from adapter to scanner on codesys. I am not sure if the problem is in I/O mapping or there is a step/s that I have missed. I have attached the screenshot of my project for your ref. Thank you, Sumit
Last updated: 2023-12-15

Post by sumit on Remote Ethernet/ip Adapter communication with scanner running on codesys ^{CODESYS Forge talk (Post)}
Hello there, I have my ethernet/ip adapter (from Texas Instrument) running on Texas Instrument Board and I have configured the scanner on codesys. I have mapped the I/Os and I can see (on wireshark) the frames coming from adapter but I don't see my input variables in scanner get updated, they just stay at 0. I wanted to see the real data that has been sent from adapter to scanner on codesys. I am not sure if the problem is in I/O mapping or there is a step/s that I have missed. I have attached the screenshot of my project for your ref. Thank you, Sumit
Last updated: 2023-12-15

Post by fajean on Issues with "Add all instance path" ^{CODESYS Forge talk (Post)}
In the past, we have routinely used the "add all instance paths" function to automatically add variables to VAR_CONFIG lists. My recollection is that compiling a project did not require VAR_CONFIG to be fully populated, and, once successfully compiled, instance paths could be added. Errors related to missing declarations, if I recall correctly, were thrown when downloading to the PLC, they did not prevent a successful compile. At some point, it stopped working. Missing declarations in a VAR_CONFIG now cause a compile error, so the application is never "current", the only reason I can see being the missing VAR_CONFIG declarations themselves (no other error). We observe the same behavior across all our projects. This is really aggravating, and I must be missing something simple. We use 3.5 SP17p3, 64 bits. Can anyone help?
Last updated: 2023-12-29

Post by joanm on Programmatically change the IP addresses of the Modbus TCP slave devices ^{CODESYS Forge talk (Post)}
Hello all, I am working in a project in which there are multiple Modbus TCP slaves. I need to be able to change the IP addresses of those devices from the HMI and I was planning to use the process depicted here: https://faq.codesys.com/display/CDSFAQ/Modbus+TCP+Slave%3A+Dynamic+Setting+of+the+IP+Address I can see the port number is what is used to specify which slave device we want to modify the IP address of. This said, can I freely set arbitrary port numbers to each device? I mean, can I set the first device to be at port 502, the second one at port 503... Any drawback or restriction? Is there any other way to reference to the device without having to change the port numbers? Thank you all in advance.
Last updated: 2024-01-04

Post by ewi04 on Recipe Manager - RecipeManCommands, load & write wrong values, Bug? ^{CODESYS Forge talk (Post)}
Hello, according to Codesys, the problem should be solved with version 4.3.0.0. After the update to version 4.3.0.0 I had the problem that the recipes weren’t saved correctly, but loading was okay. Return to the version 4.2.0.0 didn’t change the behavior. Strange… So I uninstalled the update, cleaned the project and built it new. The known behavior of version 4.2.0.0 was back. Update to version 4.3.0.0, clean and build it new, it works. Even with version 4.2.0.0. Strange, but okay. Notice: ManCommands.LoadRecipe() no longer writes into the PLC. Just as it should be. As of now, I can use the new version.
Last updated: 2024-01-05

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