Post by reinier-geers on Network variable stops sending ^{CODESYS Forge talk (Post)}
I use network variables. But when i change the programm, it wil stop sending. Then is have to add or delete a variable. Then i will be compiled again and sends again. This problem wasw already in 9.20 but seems to be still in 21.0 . Is there a way to solve this ?
Last updated: 2026-04-20

Post by ruobian on Analog Input Delay Timer ^{CODESYS Forge talk (Post)}
Hello there, I am new here and in programming. I need help with the basics. I am trying to do what I mentioned in the title. I have an analog input. So I have a real or integer data type value. I want to delay it. TON and TOF only work with bool. I think there is a function block that has two inputs, 1 for real or int and 1 for bool. And if bool is true, it will give the output as real or int. I don't know but I need something like this. Actually, it is not exactly like that. In other words, it will not show the real value at the input at the output after a certain period of time. I want it to show the real value from 2 seconds ago continuously. The purpose of doing this is to compare the real value I received with the value from 2 seconds ago and find out whether it went up or down. I am using only FBD. Please help me with this. Thanks in advance.
Last updated: 2024-08-20

Post by garrian on How to write multiple coils (Modbus FC15) ^{CODESYS Forge talk (Post)}
Hi there! I'm testing out modbus TCP/IP for my home brewery, using Wago PFC200 as both slave and master. I'm using Wago library WagoAppPlcModbus. Holding registers, input registers' and discrete inputs works fine, but when trying to write multiple coils, it doesn't work. Any idea what I'm doing wrong here? Attached is a screenshot of my code. I tried both using bit mapping and without. If I change to FC05, and write only 1 coil at the time, it works fine. But I want to write all at the same time.. Any help is very appreciated :)
Last updated: 2024-11-16

Post by bruceae on Ethernet/IP Scan ^{CODESYS Forge talk (Post)}
Hello, I have a robot configured as a Generic Ethernet Module under Ethernet/IP Scanner. I can not see the change of state of the outputs coming from the robot on the codesys side in real-time. (The robot has it's own internal program that would changes the values of remote outputs 0-3 off and on). Also when I send data down to the inputs of the robot it doesn't transfer over as expected. As an example I'll send to the robot's input bit 0 a value of 1. It doesn't see that value change. However, when I write that input bit 0 back to a value of 0, the robot changes state and shows a value of 1. And if I change the state of a different bit, the other bits update properly, except for the bit that I changed. Any advice would be greatly appreciated, and if anything else is needed let me know.
Last updated: 2024-09-10

Post by oi18ct on ARM SL Development Board Recommendation ^{CODESYS Forge talk (Post)}
Hello codesys forum, My company is looking at developing a solution with Codesys ARM SL. The requirements will not tax the capabilities of Codesys. I would like to buy an AMR 7 or 8 Dev Board for experimenting. I am looking for a recommendation as I have minimal experience with Linux. Any input from the forum would be most appreciated as the hardware requirements as provided by Codesys for ARM SL seem pretty minimal (basically a arm7 or 8 with Debian is all). Our needs are small in scale- something like 8 digital inputs, 6 digital outputs, 2 analog inputs and 1 analog output. A small gui will be published via web visualization for external display (no local display). Communications with ModbusTCP and uart/RS485. It may be necessary to access i2c and make c or python calls to some existing code that is pretty small. Something like the EMCraft STM32MP1 SOM Starter Kit or Octavo Systems OSD32MP1-RED development board? Ideally something that has a path to a SoM for production. Kontron appears to have some interesting options too. Just having a hard time deciding where to start. Thanks in advance... LC
Last updated: 2023-11-11

Post by gediminas on Datasource OPC UA client system failure ^{CODESYS Forge talk (Post)}
I am using CODESYS v3.5 SP20 Patch 3 / Control for BeagleboneBlack SL v4.13 and after some time the OPC UA Server crashes. However, Runtime still works without any issues. The events leading up to the OPC server crash are the most suspicious: 1) Mutex deadlock detected - owner thread died, and 2) Runtime received SIGABRT. And it seems very similar with this topic except used versions - issues should be fixed with previous SP's. I can't seem to find any information about these events. Need some pointers in the right direction on how I can fix this problem.
Last updated: 2024-10-25

Post by pernockham on *Exception* Async service: ServiceGroup=17, IP=0x5fa45617, Component=CmpSrv ^{CODESYS Forge talk (Post)}
*** The system may be in an inconsistent state, please reboot *** *Exception* Async service: ServiceGroup=17, IP=0x5fa45617, Component=CmpSrv Every time at the instant that I Login to the system a message that the "system may be in an inconsistent state, please reboot" is written in the log. If I logout and repeat login a new entry is set. My system is a "Control for linux SL" running on a debian linux host. Im running it on my desk without any IO attached so message might be caused from that, but I doubt i have seen it before. Rebooting makes no difference. Anyone that have a clue of how I should interpret this error message?
Last updated: 2025-09-26

Post by superjojo2002 on Licensing info not available. ^{CODESYS Forge talk (Post)}
I recognized that I have to start the two services "/etc/init.d/codemeter" and "/etc/init.d/codemeter-webadmin" in the docker container as well. If I do so, then the command "cmu -x" returns root@sensoredge-field-netfield-produktmanagment:/# cmu -x cmu - CodeMeter Universal Support Tool. Version 7.60c of 2023-Aug-09 (Build 5625) for Linux/ARMHF 64-Bit Copyright (C) 2007-2023 by WIBU-SYSTEMS AG. All rights reserved. So this time there is no indication any more that "Codemeter is not running". But still we are getting the error when using the license manager in CODESYS development system.
Last updated: 2024-03-21

Post by docker on Webvisu client connection monitoring ^{CODESYS Forge talk (Post)}
Hi mate, With this snippet i was able to see the lastusage variable count, but it would not iterate between clients? i was only able to access the data of the target visu. it threw an error with the array of pointers stating it was not able to convert etc. also when i tried it with the while loop it created an endless loop and crashed the program. any ideas? Thankyou
Last updated: 2024-09-10

Post by struccc on Application failing to boot after system reboot ^{CODESYS Forge talk (Post)}
I started to experience the same issue, after upgrading to 3.5.19 , and still persists with 3.5.20.3 , using CodesysControlWinV3 x64 on Windows. Unfortunately, this is a live application, normally it is running for months without interruption - so it was a surprise at the last cold start... It was not possible to go online with the original version, so I couldn't see the application, or system status, just the log message. First time I manually clean the Application from the PlcLogic directory (there was no coredump file in there), then I could start the runtime service, and do a fresh download, and set the bootproject. I could not try a cold system reboot - it's in a 24/7 production environment, and I was under heavy pressure to start... What I did, I have created a backup from the * complete * runtime directory, from the failed, and fixed version - before and after download. This directory in my case C:\ProgramData\CODESYS\CODESYSControlWinV3x64\55096128 - At the next shutdown, it was sufficient to copy back this backup completely, and could start the runtime service afterwards. Ugly, but local staff with some skills can do it without programming tool... I don't store any live data, configuration, log files, persistent data in this directory - the only reason I need this is to edit the CodesysControl... .cfg file.... And to see the logfiles in emergencies like this. The application concerned doesn't use any retain area. - exactly for these reasons - Maybe that is causing the problem with the newer runtime versions As far as I see, this problem occurs only if the power of the Windows PLC is interrupted without a proper shutdown. Unfortunately, this can happen sometimes. The newer versions, seems tp modify CodesysControl.cfg on the fly, and register the applications, and bootproject information after download. (I don't really see CodesysControl.cfg a proper location for this... but that's just my feeling) So now I had a look at CodesysCotrol.cfg on my laptop and I found: [CmpRetain] ;Retain.SRAM.Size=0x200200 ;Retain.SRAM.Address=0xFA3C5776 ;SimulateSRAM=1 [CmpApp] ;Bootproject.CreateOnDownload=0 ;Bootproject.StoreOnlyOnDownload=0 ;Bootproject.InvalidateByRename=1 ;Bootproject.InvalidateBySetting=1 ;Bootproject.InvalidateNever=0 ;PersistentForce=0 ;RetainType.Applications=InSRAM ;RetainType.Applications=OnPowerfail ;RetainType.Applications=None ;Exception.Hardware.GlobalStop=1 Application.1=MyTestAppNoRetain The last line appeared after download and boot project creation. Maybe... Should set RetainType.Applications=None? I wonder about all these settings, but... Will write separately about it. I hope this helps a little...
Last updated: 2024-11-21

Post by mp9876 on Device User Logon ^{CODESYS Forge talk (Post)}
Following up on the invalid user authentication on the target Not 100% sure what the problem was but following my post I managed to create an administrator level user. Then my next issue was that I could not connect to the device. I might have flipped the device from a 64 bit version to a 32 bit version so I did UPDATE DEVICE back to the 64 bit version; still could not connect somehow. Then I did two things at the same time that fixed my problem: Wiped the Codesys Control Win 64 bit version and installed the 32 bit version Installed latest Codesys Control Win V3.5 SP20 (released today) I wish I knew which one of these actions fixed the problem but at least the problem is solved. Hoping this post may help someone one day
Last updated: 2024-03-19

Post by pernockham on How to manage soft container licenses for (remote) multi units? ^{CODESYS Forge talk (Post)}
Using Codesys runtime for Linux and thinking of the process of preparing multiple such systems for my customer. I don't necessarily have physical access to these units, they can be (very) remote. The idea so far is to use an image to install the Linux OS and codesys runtime. Application updates can be done by distribution of the PlcLogic/Application/application.app and application.crc files. But whats the most practical way of managing the license for these units? Do each controller need to be physically connected to a License Manager instance or can licenses be distributed by means of a license file for each unit? I believe that the license should be stored in soft containers for each unit. Help and insights appreciated! Per
Last updated: 2025-04-04

Post by kunz on Responsive Design Example ^{CODESYS Forge talk (Post)}
Can nobody help? Here the BP when the Smartphone is selected, but for the visu of the smartphone still the monitor visu is show. Tested it with a Control WIN x64
Last updated: 2024-07-03

Post by gauravthelkar on Static Code Analysis ^{CODESYS Forge talk (Post)}
I am using the codesys V3.5 patch 7 64 bit. I have to write the python script for running the static analysis with loading standard rule .CSA file. how can we load the .csa rules file before running the static analysis command.
Last updated: 2024-08-05

Post by timvh on Converting each character to a string into ASCII ^{CODESYS Forge talk (Post)}
A standard string is actually a list of bytes that represent the ASCII code for each character. The following part of code will give you the ASCII code of one of the characters in the string: byChar := sInput[i];
Last updated: 2024-11-11

Post by tk096 on SMC_ReadNCFile2 is always busy ^{CODESYS Forge talk (Post)}
Hi, do you process the sentences subsequently? If not, the function block fills the sentences (queue) and waits for the sentences to be processed, so that new sentences can be read and filled to the queue.
Last updated: 2025-06-17

Post by alexgooi on Licensing info not available. ^{CODESYS Forge talk (Post)}
Dear Tim, This is the missing link for me. I was not aware of the fact that the docker container is claiming the smallest possible license. Now the serial number makes much more sense. Thank you
Last updated: 2025-10-02

Post by caliberbishop on Having trouble using the Web Client SL library ^{CODESYS Forge talk (Post)}
Edited: Thank you, after further inspection the library is unavailable in the example project for some reason, but using the correct Namespace in my project solved the problem.
Last updated: 2025-10-07

Post by hclai on Table Content with Multilanguage ^{CODESYS Forge talk (Post)}
I have an data structure which intend to list in a table and let user to add the content to the table. How can we able to support for displaying different language in the content of the table? which is dynamic to the user input.
Last updated: 2024-01-10

Post by jaspergain on Access to the path *** is denied ^{CODESYS Forge talk (Post)}
Hello @eschwellinger, I installed the newer version of the installer, however the issue persisted. Do I need to do anything else other than updating the installer? Thanks for your help.
Last updated: 2024-02-01

Post by ivanmaltar on Codesys Control shutdown ^{CODESYS Forge talk (Post)}
Hello, the problem was that the 4.6.0.0 Codesys control was not compatible with S versions of the RevPi controller because of the becuase of the Compute Module 4S. For those controllers, 4.8.0.0 version must be used.
Last updated: 2024-03-25

Post by e13740e on Parameterized Property syntax for array element processing ^{CODESYS Forge talk (Post)}
Hello. I'm trying to create a Parameterized Property(CDS V3.5 SP21) to avoid copy-pasting code for processing array elements. I can't seem to get any result. Perhaps I am making a mistake with the syntax. None of the declaration options below are accepted by the compiler. If you know and use them (Parameterized Properties) in your work, please let me know. Thank you in advance. Option 1: PROPERTY <property_name> : <data_type> VAR_INPUT <index_name> : <index_type>; // One or more index parameters are declared here END_VAR</index_type></index_name></data_type></property_name> GET Code that uses <index_name> to return a value END_GET</index_name> SET Code that uses <index_name> and the implicit variable <property_name> to write a value END_SET</property_name></index_name> END_PROPERTY Option 2: PROPERTY <property_name> (<index_name> : <index_type>) : <data_type></data_type></index_type></index_name></property_name> GET Code that uses <index_name> to return a value END_GET</index_name> SET Code that uses <index_name> and the implicit variable <property_name> to write a value END_SET</property_name></index_name> END_PROPERTY
Last updated: 2025-10-09

Post by acc00 on Redundancy Codesys Runtime, Synchronization ^{CODESYS Forge talk (Post)}
Hi, I’m currently testing the Codesys Redundancy application with 2 Raspberry Pi, with the idea is of using in my project 2 Wago PFC200 and 1 Ethercat Master with 2 Remote IO. After I configure the redundancy, and one Pi is Active and the other is Passive, if I disconnect the Ethernet cable of the Active, the Passive become Standalone, which is good, but the problem is the following: -When I recover the Ethernet connection, both stay Standalone. They will NOT Sync until I do it manually in the Codesys environment. How to make the synchronization automatically? -If both Pi/PLC stays Standalone, who is managing the IO? (Ethercat and Serial) I have done a test with an Modbus Slave, where I am sending a counter that increase every second. And I see that when both PLC are standalone, they both keep an active connection with the Slave, and both write values. This does not seem good, since according to this in my project both PLC would try to control the IO at the same time. Note: The Codesys have an option (greyed out, not possible to select) which says “Auto Sync”. What is the purpose, and why I’m not able to select it? I'm using Codesys Control for Rapsberry Pi 64SL Runtime in my test environment (2xRaspberry Pi 4), with the idea of using Codesys Control PFC 200 Runtime in my project (2xWago PFC200 and 1 Ethercat Master with 2x Wago 750-354 Ethercat Fieldbus Coupler). Using the last Codesys 3.5 version (SP19 PAtch 5). I'd appreciate a lot any help on this questions!
Last updated: 2024-01-22

Post by soundbuttonspro on Active vs Unacknowledged Alarm ^{CODESYS Forge talk (Post)}
Meme creators use it to power up their edits. Discord users love it for dropping instant reactions. Streamers lean on it for live sound effects. But what unites them all is the need for instant, sharable meme sounds—and SoundButtonsPro delivers that in the simplest way possible.
Last updated: 2025-09-16

Post by davidbo on Does CODESYS use its own native driver for I2c? ^{CODESYS Forge talk (Post)}
CODESYS Control for Raspberry Pi MC Does CODESYS use its own native driver for I2c? I have a python script communicating with a device simultaneously with a CODESYS doing the same. The bus is not saturated. But I get many read errors
Last updated: 2024-02-13

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