Post by vamsi on How to configure gateway for programming RPi 2B using Codesys ^{CODESYS Forge talk (Post)}
I am using a Raspberry Pi 2B. Installed Codesys V3.5.20.1 64-bit and installed 'CODESYS Control for Raspberry PI 4.12.0.0' I am able to install the packages using the 'Update Raspberry Pi' option, but when I try to log into the RPi, in the Device tab it says 'Sacn fail. Please checl that the gateway is running and that its settings are correct'. My setup looks like this. I connected my RPi to my company LAN and also my laptop to company LAN (using HP Docking station). This setup worked when I installed 'CODESYS Control for Raspberry PI', but now I donot know how to configure the gateway. Could anyone please help me in finding what I have to enter in the gateway configuration? Thanks, Vamsi.
Last updated: 2024-07-10

Post by timvh on Modbus TCP & RTU with Control for Linux SL ^{CODESYS Forge talk (Post)}
It seems you have 2 network interfaces. Did you try eth1? Did you already configure the IP address for this interface in Linux? If yes, then maybe undo this. - or only set eth0 in the Nic configuration without anything else (so no IP address, because this is already set in Linux). For more information about the Nic settings, see (probably already read it?): https://content.helpme-codesys.com/en/CODESYS%20Control/_rtsl_obj_deploy_control_sl_configuration.html PS, if you only want to run CODESYS Control SL, you don't necessarily need the Virtual PLC variant. You could also install and run the CODESYS Control SL Runtime in the Host operating system. This way you should also be able to access the serial port and directly access all ethernet ports. Maybe this is easier?
Last updated: 2024-10-23

Post by egr99 on Modbus TCP Server connection is ESTABLISHED but all holding registers are value 0? ^{CODESYS Forge talk (Post)}
You're absolutely right. Sorry for that. In the meantime I wrote a Function block to handle the reads and writes to the different attached RTU-devices. It processes the parameter like (str_Modbus:=(usiSlave:=1, uiFC:=5, uiLEN:=1, uiOFFSET:=0, uiInterval:=500)) and the corresponding output, waits for the response and processes next request in a 5-state procedure. It's working for 2 gateways (stable without errors, although error recovery is included). But nevertheless it should be possible with the Channel definitions of Codesys. Much easier to maintain :)
Last updated: 2026-04-08

Post by johnbomb on Ignore Dependencies When Loading Package? ^{CODESYS Forge talk (Post)}
I'm trying to load a .package into Codesys 3.5.21, but the package is intended to only work with Codesys 3.5.18.0 and is configured with dependencies on the specific versions of other packages included with 3.5.18.0, and 21 has newer versions so the package will not install. I would like to install the package anyway to try and get things working on a newer Codesys version, since for some reason the installer for .18 errors out and doesn't fully work in my environment, but .21 seems to work fine.
Last updated: 2025-04-01

Post by mg0815 on Codesys Control log "eventbuffer full" ^{CODESYS Forge talk (Post)}
Device: RPI 3b or 3B+ System: Wheezy Codesys: 3.5.16.2 I got the Log: 2023-12-13T00:38:43Z, 0x00000054, 2,6,11, !!!! Warning: Eventbuffer full for app=<app>Application</app>; an inputevent with the tag <tag>128</tag> has been dropped This log happens aroud 10 times a second. Sometimes the controller stopped working any more. What is the reason for this? I will update this controller soon (I hope so, but in the meantime I should at least know hoe to prevent this issue) Mario
Last updated: 2023-12-14

Post by martinla on New Codesys Library Dependencies ^{CODESYS Forge talk (Post)}
When creating a new Codesys library, I am getting 2 errors for missing libraries. I can see that I am using newer versions of these in the library manager (3.5.17.0 and 3.5.19.0 opposed to 3.5.8.0 and 3.5.7.0 stated in the errors). IDE Version is V3.5 SP19 Patch 6. The "Download missing libraries..." button in Messages list is not doing anything. Why is it looking for older versions of these libraries? Can this be fixed by using the newer versions? How can I download & install the older version of these libraries?
Last updated: 2024-02-29

Post by andrej on POU - Access to runtime ^{CODESYS Forge talk (Post)}
Hello all, when creating a POU, the Codesys IDE allows the setting "Enable System Call" (in the Settings, Property -> Build), see picture. The name suggest, that runtime functionalities i.e. functions of codesyscontrol such as "stop plc" etc. can be directly called. I tried various approches without success, the following does, unsurprisingly not work. FUNCTION accessRTE: BOOL; ****************************** codesyscontrol.stop(); Can you please tell me how I can make a system call to codesyscontrol from a POU. Or could you provide me with a use case for this setting. Many thanks for your feedback and kind regards Andrej
Last updated: 2024-03-02

Post by rossanoparis on RevPi CONNECT+, CODESYS, EtherCAT master "Filedbus lost synchronicity" ^{CODESYS Forge talk (Post)}
Hello @rmaas I assume, you've already verified and tuned everything regarding the EtherCAT network. In my case the problem was due to a wrong core assignement. I suggest to not use the core #0 for your EtherCAT task. The OS realtime patch, which is present on RevPi OS, uses the core #0 for its porpouses and it mustn't be used by any other task which requires realtime and deterministic features. regards Rossano
Last updated: 2024-04-11

Post by imdatatas on SMC_ERROR.SMC_AXIS_NOT_READY_FOR_MOTION when using Drive Virtual ^{CODESYS Forge talk (Post)}
@ducng, Another possible situation could be that normally there are 3 inputs for MC_Power. In your above images, I can't see the "bDriveStart" input activated. As Mr. @gseidel mentioned, you need to make sure MC_Power.Status output should be TRUE. Issuing any movement command without activating the axis would naturally result in an error. For MC_Power; You can set the Enable and bDriveStart inputs to TRUE and try turning the axis activation on and off using only the bRegulatorOn input. Regards, Imdat
Last updated: 2025-11-28

Post by durallymax on Persistent Vars ^{CODESYS Forge talk (Post)}
Looking for a better way to manage Persistent Variables. We tend to have local vars in our FBs that need persistence through downloads as the systems are updated/altered on a regular basis. Retain would suffice if we had an easy mechanism to backup and restore like we can with Persistent variables and recipes. Although not having to remember that step with Persistent variables is preferred. We're running into issues with persistent storage capacity (WAGO PFC200) using the Persistent variable list (and adding all instances). It appears there are many ways to handle this, some with recipes, some with files, others with application manager. Is there a solution that exists that is as simple as declaring as Persistent and managing elsewhere? Or do we need to move onto periodically writing CSVs?
Last updated: 2025-09-22

Post by konstantin on CAM Motion Recover after STO ^{CODESYS Forge talk (Post)}
Hello Mr. Seidel, both the master and the slave axis are modulo. Basically the situation is as follows: One master cycle is 100 units. Slave's modulo length is 2000 units. In the CAM table I defined 10 master cycles on X axis - 1000 units and on the Y axis is the slave - 2000 units. Then depending on the master position 0 to 1000 units the slave's position is plotted on the Y axis - 0 to 2000 units. For example, while the master is executing the 3rd cycle i.e. above 200 units, I trigger the STO function of the slave and it stops. The master executed his cycle but the slave was stopped during the execution. How can I set the slave to continue the CAM sequence from the point where it stopped i.e. third cycle of the master? When I reset the slave error and sync again, everyrhing starts from master's 0 position. Best Regards Konstantin Kolev
Last updated: 2026-02-13

Post by salvadegianluca on How to use TON inside an FB that is instanced within a Visu page ^{CODESYS Forge talk (Post)}
Hi everyone; I'm building a project in which the drag of the mouse over some controls (or the click event) changes the background color of the control items; this change of color is made with an FB that assignes a color code to the background with MUX command based on the value of an enumerator, this part is perfectly working but, when I'm using a touchpanel instead of a web visu (controlled by a mouse) I get into some issues as it seems that the touch operations are not triggering the MouseEnter and MouseLeave properties as it's done with the mouse.... For this reason I'm trying to add a TON to my FB and, if the enum that changes color remains at the same state for more then 3s I'm automatically resetting it to it's "0" so the item gets back the not selected color. Anyhow it looks like the TON function from library is not working in these FB that are instanced in the various visualizations, as instead they do if I create some instances within the POUS. Anyone has ideas of how to make them work?
Last updated: 2024-04-15

Post by salvadegianluca on How to use TON inside an FB that is instanced within a Visu page ^{CODESYS Forge talk (Post)}
Hi everyone; I'm building a project in which the drag of the mouse over some controls (or the click event) changes the background color of the control items; this change of color is made with an FB that assignes a color code to the background with MUX command based on the value of an enumerator, this part is perfectly working but, when I'm using a touchpanel instead of a web visu (controlled by a mouse) I get into some issues as it seems that the touch operations are not triggering the MouseEnter and MouseLeave properties as it's done with the mouse.... For this reason I'm trying to add a TON to my FB and, if the enum that changes color remains at the same state for more then 3s I'm automatically resetting it to it's "0" so the item gets back the not selected color. Anyhow it looks like the TON function from library is not working in these FB that are instanced in the various visualizations, as instead they do if I create some instances within the POUS. Anyone has ideas of how to make them work?
Last updated: 2024-04-15

Post by danwoodlock on RPI Zero w - Edge gateway cant install ^{CODESYS Forge talk (Post)}
Thanks very much for the explanation. I am basically new to the rpi world, but somewhat familiar with the indraworks/CtrlX versions of codesys. Appreciate your help.
Last updated: 2023-09-13

Post by snhatton on Can't open online view of FB instance from code editor, only from Device/POU windows ^{CODESYS Forge talk (Post)}
Good morning, Yes, this is a known bug that has been reported. For now, the only workaround is to open the function block instances from the device tree. Regards, -Shawn
Last updated: 2023-11-08

Post by akos on Soft motion kinematic zones ^{CODESYS Forge talk (Post)}
Hello Everyone, Is there any solution to define safety/forbidden zones in the coordinate system of the kinematics? Its not enough, to define only limits in my servo axes! I need zones in 3D! :) Thanks for the help!
Last updated: 2024-07-10

Post by thedertom on Help with DynamicTextGetTextW ^{CODESYS Forge talk (Post)}
Hi TimvH, thanks for your reply. Yes I got that figured out now. However: in "myWstringVariable" it will only store the first character of the text. How do I get the full text?
Last updated: 2024-09-03

Post by timvh on CoDeSys 3.5 SP20 "No Offline Help installed" ^{CODESYS Forge talk (Post)}
Open the CODESYS Installer (from the menu Tools). Go to Browse. Search for: help ... Select the CODESYS Offline Help which you would like to install. (probably you have to close CODESYS to install it and reopen it after installation).
Last updated: 2024-10-01

Post by eschwellinger on Persistence Manager: Config File not found? ^{CODESYS Forge talk (Post)}
..strange just switching of this device without graceful Linux OS shutdown? Reset orgin on the device tree and a new download of the application will bring it up and running again but sure then the persistent data are for sure lost.
Last updated: 2024-11-02

Post by jeroenaero on CodeSys Raspberry pi I2C driver not found ^{CODESYS Forge talk (Post)}
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 andrax on Request a dark mode for CODESYS ^{CODESYS Forge talk (Post)}
maybe the compiler of the IDE can only use this color and other colors have to be licensed? But seriously, I agree with the request.
Last updated: 2024-11-13

Post by andrax on Request a dark mode for CODESYS ^{CODESYS Forge talk (Post)}
maybe the compiler of the IDE can only use this color and other colors have to be licensed? But seriously, I agree with the request.
Last updated: 2024-11-13

Post by zatalian on Beckhoff EL7037 softmotion ^{CODESYS Forge talk (Post)}
Hi, Is the Beckhoff EL7037 supported by codesys with softmotion? Where can I find a device descriptor that includes the drive object for the EL7037?
Last updated: 2024-11-25

Post by mattplc on Opaque NodeId in the OPC UA server ^{CODESYS Forge talk (Post)}
Same for me. I have problems with UAExpert too. Can't see the Current Value of Enum and can't control. Did some Tests with Python opcua library. Not working with the communication manager so far.
Last updated: 2025-01-09

Post by mattplc on Opaque NodeId in the OPC UA server ^{CODESYS Forge talk (Post)}
Same for me. I have problems with UAExpert too. Can't see the Current Value of Enum and can't control. Did some Tests with Python opcua library. Not working with the communication manager so far.
Last updated: 2025-01-09

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