Post by davidbo on Modbus: Is there a way to get the channel index from the channel name? ^{CODESYS Forge talk (Post)}
When I use the FUNCTION_BLOCK ModbusChannel I have to sepcify the integer iChannelIndex It can easily go wrong if one has many channels. It would be better if one could use the name. Is that possible? Attached a snippet of the channel name and the channel index to the left.
Last updated: 2024-10-21

Post by kevinm on Programmatically change Tappet on a cam ^{CODESYS Forge talk (Post)}
I am considering using a SoftMotion cam and tappets to activate functions on a machine - for example, triggering a pneumatic valve. I need the ability to change the actuation point (tappet "X" location) from the HMI during machine commissioning. Is there a way to change the "X" value of a tappet programmatically?
Last updated: 2025-04-01

Post by timvh on CoDeSys v3.5: creating libraries for both 32-bit and 64-bit controllers ^{CODESYS Forge talk (Post)}
Yes, you are right. I think the help is pretty clear: https://content.helpme-codesys.com/en/CODESYS%20Development%20System/_cds_library_development.html It helps you to find errors in the source code of your library if you want to create a library which is using pointers and you want to use your library on 32 and/or 64 bit platforms.
Last updated: 2025-09-02

Post by kevin123 on MessageKey for missing library dialog ^{CODESYS Forge talk (Post)}
Hi Martin, I got the messagekey of the "upgrade format warning dialog" with key:"<< No Key>>". (please refer to the attachment) Is that means i can't use system.prompt_answers["<<No Key>>"] = PromptResult.OK; to auto-answer 'OK' in this dialog? Is there any other way to auto-answer this dialog? Thanks!
Last updated: 2024-01-26

Post by aconley on Static Code Analysis ^{CODESYS Forge talk (Post)}
I'm using CODESYS 3.5 SP16 Patch 6. I would like to incorporate static code analysis as part of our CI/CD pipeline. 1. Is there a way to execute the static code check from the command line or python script? 2. If you can't do it from the command line, is there a way to export the results from the application?
Last updated: 2024-02-15

Post by matt-purcell on Which Lib to use, connect to a socket with URL instead of IP address ^{CODESYS Forge talk (Post)}
I've been searching through these libraries, syssocket and net base services and they all seem to use the same structure for IP address for the connect function, SOCKADDRESS. At a glance, it doesn't look like that'll work, maybe it's just missing in the documentation somewhere?? I'm wondering if anyone has done it.
Last updated: 2024-06-17

Post by nulltrace on PM556-TP-ETH — How to change IP address without overwriting the PLC program? ^{CODESYS Forge talk (Post)}
Depending on the Project, the used Communication-Protocol's, the way how the System was designed, there are some Options if you can answer these Question properly The Question is: are you able to connect to the Shell / Systemprompt of this PLC with administrative Rights?
Last updated: 2026-05-20

Post by cdutz on Problems connecting to Codesys 4.9.0.0 runtime on my Wago PFC200 ^{CODESYS Forge talk (Post)}
Hi all. I am currently struggling to get my Wago PFC200 running the Codesys Runtime in version 4.9.0.0 working. I am using Codesys V3.5SP19. I updated the PFC200 to the firmware version 04.01.10(23) after having tried the latest version (04.03.03(25) from Wago and not being able to start the runtime. After reading version 23 was needed, I changed to that and at least was able to have it start the codesys runtime. I also installed the "Codesys Control for PFC200 SL 4.9.0.0" plugin for Codesys to install the Codesys runtime in version 4.9.0.0 as well as update the Gateway on the device. While I seem to be able to connect to the gateway on the PLC (the dot is green) and when doing a scan, I do now find my PFC200, which is a huge improvement to before, where with firmware version 25 it just failed to start the runtime and I never found any device when doing a scan. Unfortunately I don't seem to be able to connect to the PLC in codesys. I logged in via SSH and changed the password and I can see that this password is correct as the stuff in the Codesys PFC200 tools tab only works if I use my changed password. And I used those credentials to update the installed Runtime version, which the log claimed to have worked fine. Now whenever I try to connect to the device found in the scan, I get a authentication pop-up with empy device name, device address: 000A. As User I use "root" and as password the password that I changed it to. As a response I just get "Ungültige Benutzerauthentifizierung auf dem Gerät" (Eng. probably something like "Invalid user authentication on the device". What could I be doing wrong? Admittedly I'm a bit lost here :-/ Chris
Last updated: 2023-08-26

Post by egau on Importing a library overrides parameters of a referenced library ^{CODESYS Forge talk (Post)}
Hi, In my CODESYS project (ABC.project), I’m using the MQTT library. I’ve also created a separate library (DEF.library) which itself references the MQTT library. In ABC.project, I’ve customized some MQTT parameters—for example, setting g_udiMaxPublishersAndSubscribers to 100 instead of the default value of 20. However, when I import DEF.library into ABC.project, the MQTT parameters get reset to their default values. I assume this happens because DEF.library still uses the default MQTT configuration, which then overrides my project settings. A straightforward workaround would be to manually align the parameter values in DEF.library, but that doesn’t feel like the right approach. Is there a better or recommended way to handle this situation? I'm using SP18 Patch3. Any insights would be greatly appreciated. Thanks in advance!
Last updated: 2026-05-04

Post by rik123456 on Alarmmanagement – Dynamic Alarm List ^{CODESYS Forge talk (Post)}
Hi, I had a question about alarm management in the CODESYS visualization. I am currently investigating to what extent the alarm visualization can be built dynamically. In my program, I have developed a motor block that is used for multiple motors. When the emergency stop of one or more motors is activated, the corresponding motors are displayed in the alarm list (see image). This works quite well. I achieved this by linking variables to a latch, after which a piece of code displays the motors that are in emergency stop. My question is: do I need to create a separate latch for each motor or can I use a single latch to display multiple alarms of a motor underneath each other? This would then look like this: Time…: M1 Emergency Stop Active Time…: M4 Emergency Stop Active
Last updated: 2026-04-20

Post by john-martin on Control SL Extension Package doubts ^{CODESYS Forge talk (Post)}
Hello everybody, I'm trying to understand the SL control extension package, more specifically, the external IODriver example, because C integration is very easy and I just made my first C component successfully. Ther External IODriver has no documentation and it's not clear how to proceed. Furthermore, there is no information on how to modify the device descriptor, which is necessary to import the device into the Codesys repository. Any advice ? Thank you in advance and best regards.
Last updated: 2024-02-28

Post by timvh on HTML5 visualization controls disabled on CODESYS Control for Linux SL - overlay not supported? ^{CODESYS Forge talk (Post)}
I would suggest to install the latest visualization and visualization add-ons. Go to Tools - CODESYS installer to updates these add-ons (or just start the CODESYS installer through the Windows start menu). After installation, restart CODESYS SP22 and update the project to use this new visualization profile (you can update this through the menu Project - Project Environment - Visualization Profile).
Last updated: 2026-08-05

Post by sahin6033 on DSE M840-001-02: DSEServiceTool transfers CodesysApp.pkg successfully, but device shows “No application loaded ^{CODESYS Forge talk (Post)}
Hi, I am trying to load a test application into a DSE M840-001-02 display, but after reboot the device still shows: “No application loaded” I would like to understand whether the problem is in my project, the package creation process, or firmware/runtime compatibility. Hardware Device: DSE M840-001-02 Firmware used: M840 MKII Firmware File v4.1.2 Software CODESYS V3.5 SP12 (32-bit) DSE CODESYS Package v1.5.44 DSEServiceTool What I did Created a new empty Standard Project Selected target/template: M840-02 V4.1 Used a minimal ST program only: PROGRAM PLC_PRG VAR xAlive : BOOL := TRUE; END_VAR Confirmed: project builds PLC_PRG is assigned to MainTask created Boot Application Generated CodesysApp.pkg Put the M840 into bootloader mode Sent the package using DSEServiceTool DSEServiceTool result Transfer completes successfully and I get: connection accepted 100% download package ACK <status>OK</status> ** Example log:** Searching for controllers.... sendPackageToController: waiting for incoming data connection... sendPackageToController: connection accepted... <status>Downloading</status> <percent>20</percent> <percent>40</percent> <percent>90</percent> <percent>100</percent> sendPackageToController: sent 112cb8 bytes OK Package ...\CodesysApp.pkg transferred to controller c0a80101 OK sendPackageToController: package ACK <status>OK</status> Actual result After reboot, the display still shows: “No application loaded” Additional issue I also saw earlier At one stage I also had these fatal errors in CODESYS: [FATAL ERROR] Unresolved reference: 'IOMGRLOCKENTER' [FATAL ERROR] Unresolved reference: 'IOMGRLOCKLEAVE' I checked library versions and adjusted them to: IoDrvBase = 3.5.5.0 IoStandard = 3.5.10.0 Also, I am using CODESYS SP12, which I understand is the correct version for DSE M840. My questions If DSEServiceTool shows Status OK and package ACK, but the device still says “No application loaded”, does that mean: the .pkg was transferred but not accepted as a valid application? the package was built incorrectly? the boot application / runtime / firmware versions are still mismatched? What is the correct procedure to generate CodesysApp.pkg for M840-02 V4.1? Is there any known compatibility issue between: DSE CODESYS Package 1.5.44 M840 MKII Firmware 4.1.2 CODESYS 3.5 SP12 Has anyone successfully loaded even a minimal empty test project into M840-001-02, and if so, what exact versions/process did you use? Any help would be appreciated.
Last updated: 2026-03-17

Post by william-blandon on RecipeManCommands.ReloadRecipes ^{CODESYS Forge talk (Post)}
Hi Dave. Thanks for your answer. I still struggling with this. I have done everything according with the Codesys help even I have looked in detail at the example. I have double checked the recipe manager configuration and the use of all the methods. There are two methods that do not work as expected. I'm using Codesys 3.5.19.20 and recipe management 4.4.0.0 .CreateRecipe just create a recipe in the recipe definition but do not create the file. This have a walk around just giving a .ReadAndSaveRecipe afterwards. .ReloadRecipes do nothing but do not generate any error as well. After calling it I call the .GetRecipeCount and the number is always 0. When I create a new recipe (using the function block methods) then the number changes. Looks like this method is looking to the wrong directory finding nothing. I don't know if there is a missing configuration in the CODESYSControl.cfg file. I'm thinking in a walk around for this but I need to create a strings array with the recipe names as retentive and making all the management when deleting and adding recipes. Have had some one the same problem?
Last updated: 2024-05-23

Post by lzml on HTML5 visualization controls disabled on CODESYS Control for Linux SL - overlay not supported? ^{CODESYS Forge talk (Post)}
Thanks for the suggestion - I updated everything via the CODESYS Installer and restarted, but I'm still hitting the same error. What I did - Updated via Tools > CODESYS Installer - Visualization system libraries (VisuElems, VisuElemsAlarm, VisuInputs, VisuNativeControl, etc.): 4.7.0.0 -> 4.10.0.0 - CODESYS Control for Linux SL: 4.15.0.0 -> 4.21.0.0 (based on CODESYS SDK 3.5.22.20) - Restarted CODESYS Development System Checked project environment (Project > Project Environment) after restart - Compiler version: 3.5.22.0 - Library versions: all up to date - Visualization Profile: CODESYS Visualization 4.10.0.0 - SoftMotion version: 4.20.2.0 Result: compiling with Device = CODESYS Control for Linux SL still fails with the same error: "Overlay is not supported for your target visualization device." The custom HTML5 control is still disabled/missing from the Toolbox with this Device selected (same as before), and still appears normally when I switch the Device to a Windows target. Is there anything else specific I should check (e.g. a setting on the Device description itself, a different SL package/edition, or is WebVisu overlay for custom HTML5 controls simply not implemented yet for CODESYS Control for Linux SL regardless of package version)? Any pointer appreciated.
Last updated: 2026-08-05

Post by tomast on WAGO 750-8212 nad Sinamics v20 modbus RTU speed control ^{CODESYS Forge talk (Post)}
Hi Guys, I am new to this forum and i would like to ask od anyone got communication with Siemens v20 vfd working via Modbus RTU? I followed many websites and finally got the communication working but have problema with read/write registers. For example if i try to read holding register 40011 which is accel time i get noth but when i set the offset 0x0000 en length 113 i get ale the registers. I cannot get speed control working. I read someth about stw (control Word) and hsw but have some problems to understand it en get it working. It would be really nice if someone could help me with it. Thx
Last updated: 2024-03-05

Ethercat scan for devices not picking up EL7041 as a softmotion axis ^{CODESYS Forge talk (Thread)}
Ethercat scan for devices not picking up EL7041 as a softmotion axis
Last updated: 2023-09-18

WIBU-Systems AG CmStick (article no. 1001) not found from Licence Manager ^{CODESYS Forge talk (Thread)}
WIBU-Systems AG CmStick (article no. 1001) not found from Licence Manager
Last updated: 2019-03-20

Bug in LD/FBD editor - ModbusFB.ClientRequest does not show ETrigTo-inherited variables ^{CODESYS Forge talk (Thread)}
Bug in LD/FBD editor - ModbusFB.ClientRequest does not show ETrigTo-inherited variables
Last updated: 2022-12-04

CODESYS V35SP12 does not save data setting with rapsberry after reboot ^{CODESYS Forge talk (Thread)}
CODESYS V35SP12 does not save data setting with rapsberry after reboot
Last updated: 2018-04-17

PFC200. Firmware ver 12 with Codesys 3.5 SP14.1. ipkg not found ^{CODESYS Forge talk (Thread)}
PFC200. Firmware ver 12 with Codesys 3.5 SP14.1. ipkg not found
Last updated: 2019-04-11

Strange: CodeSys outbound/send messages seen by hardware but not by SocketCAN (inbound/read is OK) ^{CODESYS Forge talk (Thread)}
Strange: CodeSys outbound/send messages seen by hardware but not by SocketCAN (inbound/read is OK)
Last updated: 2020-09-29

The text list provided outside the library is not available for visualization controls within the library. ^{CODESYS Forge talk (Thread)}
The text list provided outside the library is not available for visualization controls within the library.
Last updated: 2023-10-16

Codesys 3.5 SP19 Patch 4. Trace context menu does not work ^{CODESYS Forge talk (Thread)}
Codesys 3.5 SP19 Patch 4. Trace context menu does not work
Last updated: 2023-10-24

Codesys 3.5.19 Control Win x64 - network adapter for EtherCAT master not working ^{CODESYS Forge talk (Thread)}
Codesys 3.5.19 Control Win x64 - network adapter for EtherCAT master not working
Last updated: 2023-11-22

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