Post by janp on IFM Controller Connection Issue ^{CODESYS Forge talk (Post)}
Hi everyone, I’m using an IFM ecomatBasic CR413S controller and having trouble connecting it to CODESYS 3.5. I have CODESYS SP18 installed, as recommended in the manual, and I’ve tried different patches. I’ve also installed all the packages provided on the IFM website for this controller. I can successfully connect to the ecomatBasic template, but I’m unable to connect when using the CR413S-specific template that includes all the inputs and outputs. Has anyone encountered this issue or knows a solution? Best regards, Jan
Last updated: 2025-05-22

Post by jvfred on Reading a negative number ^{CODESYS Forge talk (Post)}
I have a Codesys-based Eurotherm E+PLC400 connected to Codesys HMI SL for visualization. I am also bringing in several Pressure Indicators via the Ethernet. Everything works; however, the Pressure indicators sometimes read a negative value. When they do, the displayed value on the screen reads "65532." While I know what it represents, the customer freaks out and wants it to read "0" or a negative number. The value comes in as an integer, just in case that matters. Does anyone have any ideas?
Last updated: 2025-05-22

Post by berkdan on SMC_ReadNCFile2 is always busy ^{CODESYS Forge talk (Post)}
Hello, I’m using CODESYS V3.5 SP18. When I try to use SMC_ReadNCFile2 to read the file /PlcLogic/gcode.nc, the function block's bBusy output remains TRUE indefinitely. Can you help me understand what I might be doing wrong? Here is how I’m calling the function block. The value of strFileName is 'gcode.nc'. fbReadFile( bExecute := bExecute, sFileName := strFileName, bAbort := bCycleStop, fDefaultVel := RetainVariables.xSlowVelocity, fDefaultAccel := RetainVariables.xAcc, fDefaultDecel := RetainVariables.xDec, b3DMode := TRUE, bParenthesesAsComments := TRUE, fDefaultVelFF := RetainVariables.xFastVelocity, fDefaultAccelFF := RetainVariables.xAcc, fDefaultDecelFF := RetainVariables.xDec, ErrorID => gCNC.eErrorId, errorPos => gCNC.eErrorPos, ErrorProgramName => gCNC.eErrorProgName, bBusy => bReadFileBusy, sentences => sentencesss ); Thanks in advance for your help.
Last updated: 2025-06-16

Post by berkdan on SMC_ReadNCFile2 is always busy ^{CODESYS Forge talk (Post)}
Hey tk96 Thank you for your help. I have found the reason why fbreader stuck. It was not the program but it was the gcode itself. G21 command blocks the reader. And multiple G codes in a line also blocks the reader. My code was: N010 G21 G17 G90 -> Blocked the reader When i change it to: N010 G90 N020 G17 Then it worked. The only thing i did not get is why the reader did not thwor error. ErrorId was SMC_NO_ERROR. Anyway, it is now working. Thanks again.
Last updated: 2025-06-17

Post by arwie on Use MC_Home without enabling the drive for homing method 35 ^{CODESYS Forge talk (Post)}
Is it possible to use MC_Home without enabling the drive (MC_Power)? On the drive the homing method 35 (Homing on current position) has to be executed. The drive has to stay disabled due to safety. This is explicitly allowed by the drive. Unfortunately MC_Home reports the error SMC_REGULATOR_OR_START_NOT_SET when executed. Are there other options to start homing, if not with MC_Home?
Last updated: 2025-06-25

Post by imdatatas on Use MC_Home without enabling the drive for homing method 35 ^{CODESYS Forge talk (Post)}
Hello, As far as I know, no matter which home mode is selected, the axis must be in Standstill mode to run MC_Home according to PLCopen state machine. However, if the function you want can already be done from a parameter in the driver of the vendor you are using, you can try to perform the same function by sending the required value to that parameter via communication with the SDO write command. Regards, Imdat
Last updated: 2025-06-25

Post by yuan on Seeking a Code-Based Solution for EtherCAT Slave Dropout or Master Errors in Production (Beyond Software Hot Reset) ^{CODESYS Forge talk (Post)}
I need official assistance with the following issue: During EtherCAT communication, if a slave station drops off the network or the master station encounters an error, the problem can currently only be resolved by performing a software-based hot reset. In actual production environments, this approach is unacceptable. Is there a method to resolve these issues programmatically, through code?
Last updated: 2025-07-18

Post by jeroenaero on Autostart Targetvisualization 4.16.0.0 doesn't work on Linux device ^{CODESYS Forge talk (Post)}
Hi, How can we configure autostart of TargetVisualization on the remote device? The device is a Raspberry PI CM4 with PIXEL Desktop on display. I installed Targetvisu for Linux SL 4.16.0.0 on it. After each restart of the Raspberry PI CM4, we have to start Targetvisu fot Linux SL manually. i tried the step on this page: https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_target_visu_for_linux.html but i don't get it working
Last updated: 2025-07-24

Post by jampid on Codeys Ladder LD2 ^{CODESYS Forge talk (Post)}
Hi, Has anyone managed to use the last four buttons in a POU toolbar in LD2? You can close and open by clicking from one small rectangle to another (same for deleting a closure //). Linking K to D causes a series connection with all the branches // above. Amazing! I don't really see the advantages of this supposedly modern and efficient language over the old LD/FBD. Can anyone explain?
Last updated: 2025-07-24

Post by ivan-g on MODBUS ^{CODESYS Forge talk (Post)}
Hi There, I took over a project from a colleague (in GTB) who left the company. When I took over his project, it wouldn't compile because some libraries were missing. I managed to recover quite a few libraries, but I can't find the library that contains the block functions shown in the image. Here are a few examples: Fb_RegMel_ISO Fb_DefModbus FbDecalConsSalSO Fb_Autor_FreeCool_CTA_C I'm a little stuck at the moment, so if you see a Facebook post that speaks to you, don't hesitate to get in touch! Thank you in advance for your help.
Last updated: 2025-08-05

Post by ivan-g on MODBUS ^{CODESYS Forge talk (Post)}
Hi There, I took over a project from a colleague (in GTB) who left the company. When I took over his project, it wouldn't compile because some libraries were missing. I managed to recover quite a few libraries, but I can't find the library that contains the block functions shown in the image. Here are a few examples: Fb_RegMel_ISO Fb_DefModbus FbDecalConsSalSO Fb_Autor_FreeCool_CTA_C I'm a little stuck at the moment, so if you see a FB that speaks to you, don't hesitate to get in touch! Thank you in advance for your help.
Last updated: 2025-08-05

Post by pernockham on Persistence Manager: Config File not found? ^{CODESYS Forge talk (Post)}
I still cannot enable persistent manager for my project (and successfully login to a device). Project compiles with no errors but during download/login it fails with the fairly limited message "one or more errors occurred". The only clue I get from the system that this messages is displayed during "Generating code..: relocation pou". Any tips pointing me in a direction how to solve this very much appreciated!
Last updated: 2025-08-22

Post by yann2021 on Execute a .py file with Codesys ^{CODESYS Forge talk (Post)}
Hello, I have a Raspberry Pi 3 which has a printer connected to his USB port. I have a PiFace Board on the Raspberry. I have a python script file (.py) to print a logo + a text. The script is working because when I execute it from the Raspberry terminal it works. Now, when I push a button on the PiFace I would like to execute the python script file to print. How can I do that ? Many thanks for your help and advices!
Last updated: 2025-08-26

Post by gmau on Station 'xyz': AR aborted by device (alarm.ind): AR consumer DHT expired ^{CODESYS Forge talk (Post)}
Hello, I am writing to You with the problem of Profinet communication in my Codesys V2.5 SP21 project working on Codesys Control RTE V3 x64 device. I have implemented multiple Profinet devices in the network, the Profinet itself is configured properly, based on the hardware and software parameters of the industrial PC (Windows 10 IoT). My Profinet network contains such Profinet devices as a robot, IO-Link master with some devices on it, IO modules, safety, vision sensor (the configuration is attached to this topic). Once every few hours, sometimes more often, sometimes not even once a day, the error show up at one, two or a few random modules at the same time, every one is the same: "Station 'xyz': AR aborted by device (alarm.ind): AR consumer DHT expired". The communication is then lost with that module, but it is up instantly. It is not such a problem when it comes to regular IOs, but with safety or rotation table, it causes errors and machine stops. I have tried multiple solution based on any forum suggestions, manuals, etc., but it is still happening. Mabye when I turned on the Watchdog for this communication, it is happening less times, but still, I could not turning up the Watchdog parameters at the expense of cycle time of the process. The same is with Send Clock, Reduction and DHT. I have one of the ethernet port on the PC configured with CmpEt1000Drv driver. The card itself is Intel Ethernet Connection I219-LM. These devices are connected to one EKI-2728-NI-A Profinet switch (it was changed from the standard non Profinet one, but still nothing has changed). As I said ealier, I am attaching all the configurations for each device and the communication itself - if any of You had the same problems or have any ideas what could be the cause, I would be much gratefull for any help. For now I am out of ideas, if You have any additional question, please ask. Sincerely, PF
Last updated: 2025-09-04

Post by timvh on I want to show the current recipe name in the visualization screen ^{CODESYS Forge talk (Post)}
Maybe the easiest solution for you is to add one STRING variable to your recipe and enter the name of the recipe in variable value. This is little bit double the work (naming the recipe and entering the value of the STRING variable), but in that case you always have the current value of the variable which you can read from the application and show in the visualization.
Last updated: 2025-09-04

Post by sandro66 on Application-based license Modbus Channels ^{CODESYS Forge talk (Post)}
Hi Gatto, Using version 3.5.21.xx, it is no longer possible to use Modbus function blocks (I make extensive use of these FBs.)as shown in the example. https://content.helpme-codesys.com/en/CODESYS%20Examples/_ex_modbus_example.html The compiler detects one Modbus instance for each instance of the communication FB block. The example program above, although simple, reports 8 Modbus instances when compiled with the latest version. Codesys Support says that you must use fieldbus I/O mapping, but this will result in the loss of the ability to programmatically modify communication parameters. Sandro
Last updated: 2025-09-04

Post by davidbo on All the things needed for anonymous login to OPC UA ^{CODESYS Forge talk (Post)}
When you have a deep object structure where not all values are not exposed to OPC UA, the top object will not have a V check mark but be filled fully out. In that case CODESYS do not always registrate changes to inner object. Solution set a V in the checkbox of the top object, build, download. Now you can browse, but all values in the top object will be selected, then you can deselect the ones you don't want, build, download and it works
Last updated: 2025-09-10

Post by sigurdrb on Network log messages ^{CODESYS Forge talk (Post)}
Hi, I'm having some trouble with an OPC client connecting to the PLC. It could be that the problem is on the client side of things. The PLC have UPS power, but the switch and OPC client does not. It could explain some of the log messages. Could any of you help debugging by the log messages in the attachment? And if possible point me to the right library that explains the different messages? Thanks for all the help.
Last updated: 2025-09-11

Post by monw on Unable to Re-Import Native XML Exported Using CODESYS Script API ^{CODESYS Forge talk (Post)}
When exporting a Logical Device or Logical Exchange GVL using the native XML export functionality of the CODESYS Script API, I encounter the following error upon re-import: "Error in IEnumeratorOfTWrapper. Current. Could not cast: System.String in System.Char" I am using CODESYS V3.5 SP21 Patch 2. Is there a known solution or workaround for this issue? Notably, importing the same XML file through the CODESYS Engineering IDE's menu import works without error.
Last updated: 2025-09-12

Post by gunstr on CODESYS control on RPi starts, shortly runs, then exits ^{CODESYS Forge talk (Post)}
The problem has been resolved. Two findings are described below for future reference. The new RPi hw delivered during August 2025 has a MAC address from a new vendor series that is not supported by old runtimes. 4.17.0.0 or above is required. 4.17.0.0 does not pick up the correct architecture during installation and aarch64 has to be manually configured either in the GUI under operations or in /etc/codesyscontrol/CODESYSControl_User.cfg under the [CmpRasPi] section.
Last updated: 2025-09-16

Post by nchau on Estun servo with codesys ^{CODESYS Forge talk (Post)}
Hi everyone, I'm currently working on a project using Estun Pronet servo drives with EtherCAT communication, and I need the appropriate ESI (EtherCAT Slave Information) files to set up the network. The specific models I'm using are: Pronet-04AEG-EC Pronet-02AEG-EC-R1 Pronet-10AEG-EC-R1 Pronet-20AEG-EC-R1 Pronet-50DEA-EC-R1 If anyone has the ESI files for these models or knows where I can download them, I would greatly appreciate your help. Thank you in advance!
Last updated: 2025-09-26

Post by monteta on Automation without UI ^{CODESYS Forge talk (Post)}
Problem solved, Once the perform_network_scan() is done, y just had to recover the address and using set_gateway_and_address(). Now i'm looking how to deploy all my device's applications on the PLC, I guess it will looks like : for app in allapplication: with online.create_online_application(app) as onlineapp onlinedevice = onlineapp.get_online_device() online.set_default_credentials(x,y) try: onlineapp.login(OnlineChangeOption.Keep, False) except Exception as e: msg = str(e).lower() if "rescan" in msg : print("PLC service might be off") elif "targetdo" in msg: print("Bad credentials") else print(msg) else: onlineapp.create_boot_application()
Last updated: 2025-09-29

Post by alexgooi on Licensing info not available. ^{CODESYS Forge talk (Post)}
Dear Eschwellinger, Thank you for the response. Does that mean that the license-manager inside the Codesys-IDE does not work with this setup anymore? Because when I use this I get the notification that there is no dongle attached to the device (see picture). And If I insert the license by the deploy tool, can I then redeploy the Codesys virtual control container, or does this erase the license completely?
Last updated: 2025-09-30

Post by mputaggio on Recipe Manager - RecipeManCommands, load & write wrong values, Bug? ^{CODESYS Forge talk (Post)}
Hello, We encountered the same issues on both recipe library versions 4.2.0.0 and the newest 4.3.0.0. The Arrays of structs get saved correctly but loading them restores only some indexes, while others get lost or completely wrong. We have been using the same recipes for the last two years on recipe manager vers. 3.5.17 withoud issues. There also seems to be a different behaviour in vers. 4.3.0.0 but it's still incorrectly loading the recipes. Did you find any workaround or solution? Codesys version used: 3.5.19.50
Last updated: 2023-12-15

Post by nathant on Some visualization objects disappear when user is logged in? ^{CODESYS Forge talk (Post)}
I am deploying a webvisu on Codesys 3.5 SP 19.2 with legacy user management. I noticed that when a user logs in, some text and a rectangle I have (for aesthetics) both disappear. I made sure that none of the objects in question are linked to a state variable. Anyone know the cause/solution to this? Nothing crucial to the machine's function is lost, but it is a little annoying.
Last updated: 2023-12-15

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