Post by automa on Best practice to reduce CPU load
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I am experiencing quite high CPU load on My Schneider M241 PLC with WebVisu. I would like to know what is best practice and how you create your application with pages, frames, tags, dialogs and settings to make an efficient HMI with low CPU load. Thanks
Last updated: 2026-04-10
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Post by transcend on Movesuperimposed Command Aborted Error
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Hello everyone, I am building a 3-axis packaging machine. First, I created a virtual axis and connected the knife to the virtual axis using a CAM. I also linked the conveyor system to the virtual axis with GearIn. However, I’m facing the following issue: when I use SUPERIMPOSED to change the conveyor’s motion, I get a COMMAND ABORTED error. The exact error is: SMC_ERROR.SMC_FB_WASNT_CALLED_DURING_MOTION. Why am I getting this error?
Last updated: 2026-04-11
Post by wollvieh on Sysfile Konfiguration
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https://forge.codesys.com/forge/talk/Deutsch/thread/d2df08e587/#3d9c
Last updated: 2026-04-13
Movesuperimposed Command Aborted Error
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Sysfile Konfiguration
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Post by struland on Sysfile Konfiguration
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Bei mir half: [SysFile] IecFilePath=/mnt/sdcard Allerdings ist es kein Raspi. Den Ordner, der gelesen werden soll mal auf korrekte Zugriffsrechte prüfen. Im Falle das SELinux aktiv ist mit ls -lZ, ansonsten ls -al
Last updated: 2026-04-13
Post by struland on Sysfile Konfiguration
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Bei mir half: [SysFile] IecFilePath=/mnt/sdcard Allerdings ist es kein Raspi. Den Ordner, der gelesen werden soll mal auf korrekte Zugriffsrechte prüfen. Im Falle das SELinux aktiv ist mit ls -lZ, ansonsten ls -al
Last updated: 2026-04-13
Post by msegon on Send HTML body with Mail Service SL
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I'm trying to send a mail using Mail service SL. I would like the body to be in HTML format for a nicer look. Which I managed to do, but only if I don't send an attachment. Can someone help me with the settings on how to send an HTML body and attachment? I used the Mail Service SL Example project, the only thing I added in the "Main_PRG" code in line 51 under "SendMailFB" is "mimeType := 1". I'm using Library: Mail Service SL Library Documentation Company: CODESYS Title: Mail Service SL Version: 1.13.0.0 Categories: Application|Utils Namespace: MAIL Author: CODESYS Development GmbH Placeholder: Mail_Service_SL
Last updated: 2026-04-14
Post by nulltrace on How change Unity-ID in TCP Modbus Slave
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Hey, I also waiting for feedback from Mr. Schwellinger @eschwellinger, please send me an answer, i would appreciate it. The clue is, i know the solution, but have to check if it's allowed to share.
Last updated: 2026-04-14
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Post by husarz17 on How change Unity-ID in TCP Modbus Slave
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Hi nulltrace, Thanks for the info. I'm waiting to hear back from you. Take care!
Last updated: 2026-04-13
Post by alexgooi on Modbus TCP interface get stuck
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Dear Forum, I'm currently experimenting with Modbus interfaces in combination with a virtual controller. I have the following setup (Modbus_Setup.png): I have an IPC with Debian installed on it (Debian 13). On this Debian machine I have installed a docker server and on this docker server a Codesys runtime container is deployed (Codesys_image.png). The Modbus scanner makes connection with and IO coupler and this works well. But when I physically disconnect the ethernet connection between the IPC and the IO coupler the Modbus interface gets stuck in a state where it gets stuck in the busy state (Modbus_Stuck.png). When I plug the cable back in, the IO coupler isn't communicating until the xBusy variable is manually set to False, after this action is performed the communication goes back to normal. I have tried to set the container network to host and bridge (Network.png), but both version gives the same result (stuck scanner). I would expect that the Modbus interface is generating a timeout after 1 sec, because this is how it is setup (Modbus_settings.png), but this is not what happens. I have thought to write a piece of code that writes xBusy to false when it is stuck but because it is an output I'm not able to write to it. I have tried this with another PC (different CPU/motherboard) but this gives the same outcome. I tried updating to the latest version of Virtual control (4.20) but this gives the same result. I also tried to do the same thing with an ethernet IP scanner, and this gives an error after the timeout is expired (so this works well). I have tried to connect to the IO coupler using the Modbus_FB lib (Modbus_FB.png) the FB's are giving the correct errors and behaving as expected. At last I have tried to use a Scanner on a Codesys controller (no IPC) and here the scanner behaves as expected (an alarm is triggered after the timeout has been expired). The version of the Codesys components are listed in the picture Versions.png Is there anyone that can give me a push in the right direction? Kind regards Alex
Last updated: 2026-04-14
Modbus TCP interface get stuck
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Post by reinier-geers on Resize and position Numpad/Keypad
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HI, I download the scale dialog. But cant find were i can Set the size of the dialogs. only the position. I want the diolog bigger
Last updated: 2026-04-15
Post by ulvis on NetBase Services Example
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According to the recent feature briefs from Codesys, the CAA libs are beeing depreceated. Anyone to confirm?
Last updated: 2026-04-16
Post by ulvis on NetBase Services Example
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According to the recent feature briefs from Codesys, the CAA libs are beeing depreceated. Anyone to confirm?
Last updated: 2026-04-16
Post by ulvis on NetBase Services Example
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According to the recent feature briefs from Codesys, the CAA libs are beeing depreceated. Anyone to confirm?
Last updated: 2026-04-16