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
Post by alexgooi on Licensing info not available.
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Sorry for the question, but I'm not completely getting the idea here, could you be more specific, maybe give an example? I'm now in a state where I don't have a softcontainer on my license server anymore (even after reinstalling from the Codesys-IDE). I tried reaching the webserver of Codemeter but when I do that I get redirected to http://"IP":22352 This is not reachable, afterwards I installed lynx on my Debian machine (command line only). From here I could reach the webserver and toggle the network server setting, but unfortunately this did not help. I also tried to changed the remote read setting to 1 (in the Server.ini file). But after a Codemeter reboot this is overwritten to 0. I have the feeling that it should be much easier to get a license to work, am I missing some checkbox somewhere? Is there a tutorial (or manual) that explains the licensing sequence step by step, because I'm pretty stuck.
Last updated: 2025-10-01
Post by mubeta on Some 'pathetic' errors in SoftMotion program
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Maybe the example posted it's not so clear, but this is not the problem. The execution of every motion methods is well triggered.
Last updated: 2024-07-18
OPC-UA Server, Symbol Set: Raise an error: Object reference not set to an instance of an object.
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OPC-UA Server, Symbol Set: Raise an error: Object reference not set to an instance of an object.
Last updated: 2024-08-08
Post by trycyclepower on EtherCAT drive going into fault mode require power cycle everytime
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I have EtherCAT servo drive lost communication with PLC everytime it gets faulted, it does not not communicate until I power cycle everything again, how to solve this issue?
Last updated: 2024-09-11
Post by prakashkoladiya on CODESYS Gateway is not running
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Suddenly CODESYS gateway has been stopped running as below picture so I’m not able to scan network PLC. I also tried to start CODESYS gateway service manually but its giving error as below. Have you faced this kind of problem before ??
Last updated: 2024-10-08
Post by reinier-geers on Ethercat not running.
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I change a running programm but now ethercat is not running. all users are there. Why is it always problems with codesys/ Diadesigner. i see also a Crist ? Why ther is only one master
Last updated: 2024-10-16
Post by pernockham on Persistence Manager: Config File not found?
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Also. Every third (or so) attempt to login/compile is unsuccessful with the error prompt "one or more errors occurred", however there is no information available on what this error might be. If I remove the PersistenceManager-module, these problems are not present.
Last updated: 2024-11-01
Post by jeroenaero on CodeSys Raspberry pi I2C driver not found
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I tested your project but with same results i am still not seeing analog values. I also included the library list, the mainprogram.
Last updated: 2024-11-08
Post by jeroenaero on CodeSys Raspberry pi I2C driver not found
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I also installed your codesys version with the codesys for raspberry pi package version 4.7.0. but with no succes, only the TCA multiplexer has a constant green turning circle, the ADS1115 still changing from running to not running.
Last updated: 2024-11-11
Post by teichhei on The selected container ... does not fit your ticket
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Don't I need a browser on the device for web depot? Could work on the Pi but not the Wago controller. Maximum I have is SSH.
Last updated: 2025-01-08
Post by liai on an not create Symbol Configuration in Codesys V3.5 SP20 Patch 4
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Just can not create Symbol Configuration in Codesys V3.5 SP20 Patch 4.Showed in the picture. The same PLC works well in SP19. If it lack of some setting in SP20 ?Thanks a lot.
Last updated: 2025-03-08
Post by timvh on library is not available
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Which PLC do you use? If it is a standard CODESYS Runtime (from the store), then maybe update the device in your project to the latest version. If it is not a standard CODESYS Runtime, then maybe contact the supplier.
Last updated: 2025-03-25
Post by avenue68 on REFERENCE TO in an array
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That's because the array only contains structures themselves, not references. It doesn't matter that what consists of each struectures unless they are not pointers.
Last updated: 2025-05-21
Post by davidbo on Why does SysTimeRtcSet not set the clock on a Pi 4
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temp:=DT_TO_DWORD(newTD); result:=SysTimeRtcSet(ulTimestamp:=DWORD_TO_WORD(temp)); the result=0 which mean ok but the clock is not set
Last updated: 2025-06-27
Post by paulpotat on Working on exporting/importing projects to PlainText.
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Hello, Sorry for digging this topic up, but the bitbucket link does not work anymore. Have you changed the location @mondinmr ? I would be really interested in your project, even if you did not finish it. Thank you for your time, BR
Last updated: 2025-07-22
Post by jonasz on TargetVisu not accepting touch inputs
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This solution did not give me peace of mind, so I decided to check other options again, especially since artifacts appear on some controls in WebVis. The solution is to enable the Multitouch handling option in the additional settings tab.
Last updated: 2025-08-21
Post by davidbo on Why is Application_DataLog.sqlite not moved to my directory
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In CODESYScONTROL_User.cfg I have [SysFile] FilePath.1=/etc/, .dat FilePath.2=/home/pi/DataLog/, .sqlite, .sqlite.metadata, .sqlite-journal, .sqlite.tmp PlcLogicPrefix=1 Should that not write the Application_DataLog.sqlite in the /home/pi/DataLog/ directory? Or how do move the working directory for AC_Datalog ?
Last updated: 2025-08-22
Post by alexgooi on Licensing info not available.
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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
How to change list of referenced visualizations of a frame by programm? (NOT how to switch vis!)
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How to change list of referenced visualizations of a frame by programm? (NOT how to switch vis!)
Last updated: 2023-06-01
Not able to create an OPC UA certificate in my Beaglebone Black (linux Debian) on CODESYS 3.5 SP19
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Not able to create an OPC UA certificate in my Beaglebone Black (linux Debian) on CODESYS 3.5 SP19
Last updated: 2023-05-28
OPCUA-Client on raspberry pi can not communicate with OPCUA-Server on raspberry pi installed with CODESYS runtime
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OPCUA-Client on raspberry pi can not communicate with OPCUA-Server on raspberry pi installed with CODESYS runtime
Last updated: 2021-11-11
【Solved】Error 4355, 4370, 4371--A transition may not have any side effects; Superfluous lines; Invalid characters
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【Solved】Error 4355, 4370, 4371--A transition may not have any side effects; Superfluous lines; Invalid characters
Last updated: 2023-06-30
Post by rafaelbrito on Error while processing the visualization: Client id not present or no longer valid
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I'm having the same problem after configuring array in Alarm Group (I configured only one item per line, since Alarm Group does not work with structures / arrays). Can someone help us?
Last updated: 2024-02-20
Post by rafaelbrito on Error while processing the visualization: Client id not present or no longer valid
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I'm having the same problem after configuring array in Alarm Group (I configured only one item per line, since Alarm Group does not work with structures / arrays). Can someone help us?
Last updated: 2024-02-20
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