Post by gseidel on Using an Axis of an Axis Group in Torque Conctrol ^{CODESYS Forge talk (Post)}
Hi manuknecht, the axis group currently always writes the axis set torque values. If no dynamic model has been configured for the axis group, then the set torques are written to 0. The solution for your use case is to call SMC_GroupUpdate [0] before you call SMC_SetTorque on the axes. This way, the axis group will write 0 to the set torques in the call to SMC_GroupUpdate(), and SMC_SetTorque then will write the desired set torque. Best regards, Georg [0] https://content.helpme-codesys.com/en/libs/SM3_Robotics/Current/SM3_Robotics/POUs/AdministrativeConfiguration/Computation/SMC_GroupUpdate.html
Last updated: 2025-09-09

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 alexgooi on Licensing info not available. ^{CODESYS Forge talk (Post)}
Dear Forum I have the following config: Codesys_IDE 3.5.20 Codesys_Virtual_Control 4.13 Codesys_License_Server 4.13 I know these are not the newest versions, but in my mind these should work. I have the same problem here. I have the license server installed on the host, and in the docker container(Codesys virtual control) I'm able to ping the license server. In the /conf/codesyscontrol/CODESYSControl_User.cfg I have added the following config: [CmpCodeMeter] EnableNetLicenses=1 LicenseServer.1="ip address of the host" I have tried it via the wbm web-page. I can create new license containers over there, but still no luck. I also have tried to run the docker container with the -s "server_IP" command. I have searched for some tutorial's but I couldn't find it. If anyone has some clue or can give me a push in the right direction it would be very very welcome!
Last updated: 2025-09-29

Post by alexgooi on Licensing info not available. ^{CODESYS Forge talk (Post)}
Thank you for the response, The empty softcontainer does not become visible unfortunately, but I think I can get that back to working. I think I'm misunderstanding something. You are pointing to the Softcontainer number and the ticket code, I thought that I needed to fill in the virtual control containers serial code is this a misunderstanding? And if this is indeed the case, how is the link between the server (softcontainer) and the Codesys control docker container made? If I have multiple Codesys docker containers running on the same docker server, how is the correct license distributed to the correct Codesys runtime container?
Last updated: 2025-10-02

Post by ranadheer on Implementation of IEC-104 ^{CODESYS Forge talk (Post)}
Hi Everyone, As we didn't have client for IEC - 104 - only server server is available , so because of that we are trying to make establish the communication between the external simulator as a Client and codesys itself as a server. We are looking for the variable behavior from CODESYS has to change according to the message triggered by the CLIENT (we are using simulator Application like Redisant). We are able to see the log data as the status of triggering the SCS from Client received to the Log data of the codesys device(attached screen shot of it) and in simulator panel we had set the details to trigger the data from Redisant to Codesys. Current Status: The project builds and runs successfully, but I need guidance on how to connect this to an external IEC-104 simulator for testing and visualization by using demo mode.
Last updated: 2025-10-14

Post by ranadheer on Implementation IEC-104 ^{CODESYS Forge talk (Post)}
Hi Everyone, As we didn't have client for IEC - 104 - only server server is available , so because of that we are trying to make establish the communication between the external simulator as a Client and codesys itself as a server. We are looking for the variable behavior from CODESYS has to change according to the message triggered by the CLIENT (we are using simulator Application like Redisant). We are able to see the log data as the status of triggering the SCS from Client received to the Log data of the codesys device(attached screen shot of it) and in simulator panel we had set the details to trigger the data from Redisant to Codesys. Current Status: The project builds and runs successfully, but I need guidance on how to connect this to an external IEC-104 simulator for testing and visualization by using demo mode.
Last updated: 2025-10-14

Post by jmohre on External file with relative path ^{CODESYS Forge talk (Post)}
I try to add a simple text file to my PLC application, so that is download everytime the application is downloaded to the target. What I did is to add an external file to the application and this works perfect as long as the external file location does not change. It looks like the external file path is stored absolute in project. But if different users work on the project they may have different locations where for their working directory. Is there an option to store the external file path relative e.g. to the project file? Or does s.o. know a different solution to add a text file to application in order to download automatically with the application? Thanks
Last updated: 2024-01-04

Post by matt-s on HMI Pushbutton/Move Instruction ^{CODESYS Forge talk (Post)}
I am having an issue where the manual start/stop push buttons on the HMI are supposed to take the pumps/blowers out of auto. The logic I have attached works for the pumps, but not the blower. From what I can tell it is the exact same logic, but it is not writing a 0 to the Auto PB variable. Attached is the logic, cross reference list to show nothing else is writing to it, and the HMI screen. Any help? Am I missing something? I am using a Groov Epic PR1, my software version is 3.5 SP19 Patch 5 32 Bit.
Last updated: 2024-01-25

Post by ewi04 on How to upload application file to remote controller (offline) ? ^{CODESYS Forge talk (Post)}
Hi, I am looking for a good way to update a decice remotely. The devices are distributed worldwide and have normally no connection to the internet. The CODESYS Automation Server can't help here. So I want to update the decices via USB stick. I have written my own code* to update the files that are created with ‘Create boot application’. But sometimes strange things happen: visu elements are present, but are not found the application is no longer registered and therefore no longer starts I have not yet found out why these errors occur. Has anyone had similar problems or found a better way? Is there perhaps a CODESYS library or something else? Many thanks! *the code deletes the directories on the device and copies the new directories from the USB stick while the system is running (goes without saying)
Last updated: 2024-02-05

Post by alexgooi on Is it possible in the log to see previous shutdown ^{CODESYS Forge talk (Post)}
Hi DavidBo, In general Codesys is used to control equipment and an exception is the worst thing that can happen in your installation. If you cannot prevent the exception from triggering, you could implement a Try catch statement, with this solution your controller keeps on running and you are able to handle the exception. __TRY //This statement will trigger an exception Result := 4/0; __CATCH(exc) //Handle the exception HandleException(exc, strExceptionText => strExceptionText); // From the Codesys help file //Create a log file //-------------------------------------------------------- __ENDTRY What you also could do is implement implicit checks, these functions cover most of the exceptions (like dividing by zero) See picture But in general avoid a complete controller shutdown!
Last updated: 2024-02-09

Post by karol-abktech on Raspberry and problem with runtime ^{CODESYS Forge talk (Post)}
Hi, My problem is with raspberry pi 4 with 2 GB ram,. Install codesys is correct but runtime works only few seconds or I can connect with device few seconds. I can ping raspberry and in system info I can see " !!!! Warning: no runtime license - running in demo mode(~2 hours)" but it is 2 minutes after runtime. When I press Start runtime I have another few seconds when I can connect to raspberry. After this time I couldn't find device. Of course, reapet start runtime works every time on few second. Raspberry is new and works with fresh install raspberry os 32 bit. Where should I start looking for solve of my problem ?
Last updated: 2024-02-14

Post by alexgooi on Codesys licensing explanation ^{CODESYS Forge talk (Post)}
Dear Forum, We are currently switching to a native Codesys controller, and I'm currently trying to determine the correct license. I have a question regarding the Modbus instances. With the Standard S license this is set to 4 (See picture). In our projects we are using a lot of communications to Modbus servers using a Codesys Controller, for this communication I'm using the ModbusFB library (supplied by 3S) (see picture). In my project I would like to use more than 4 instances of the ClientTCP FB. My question is, is this now capped at 4 possible connections with the standard S license. Or do these function blocks have a different relation with the license? Some clarity on this topic would be very welcome. Thank you in advance
Last updated: 2024-02-15

Post by riccardo on Web Browser special tools errors ^{CODESYS Forge talk (Post)}
Goodmoning everyone, I hope a codesys tecnichian will see this post. I serched on the forum and I found many topic about this tool but very few reaplies. I am tring to use the Web Browser tool, but it doesn't seem to work properly. I put several links in several forms: https://google.com http://google.com/ http://www.google.com http://www.google.com/ http://www.studiojomega.it/ . . . https://192.168.1.101/u-os-app-codesys/application/visualization/webvisu.htm But I obtain always errors; mainly 400 and 404 and in the normal visu this message appears "www.Google.com has refuse the connection". Is the codesys browser able to work as every other browser or has it some limitation? There is some particular precaution to consider when I pass the link to the codesys browser? Thanks in advance, Riccardo
Last updated: 2024-02-29

Post by nmcc on Viewing PDF in WebBrowser Visual Element ^{CODESYS Forge talk (Post)}
I am trying to show a PDF in a WebBrowser element. I have the file saved to the drive of the HMI/PLC. I am linking it in the URL parameter of the WebBrowser using the following directory link. 'http://localhost:8080/$$sdcard$$/FileName.pdf'. This allows for the program to download without any errors. When I navigate to that screen it is just a white box and nothing shows. I attempted putting the same link in the show parameter and I get a loading icon on my cursor when monitoring the HMI with my PC. Any help is appreciated. Thank you.
Last updated: 2024-02-29

Post by mp9876 on Device logon problem following fresh install ^{CODESYS Forge talk (Post)}
Yes it had been the case I believe as I have seen that message regarding they were not the same. I had update the device though to match them and that still did not fix the problem. I gotta say I wanted to get out of that situation and attempted a lot of things and then I did two things at the same time that fixed my problem: Wiped the 64 bit version and installed the 32 bit version Installed latest SP20 I wish I knew which one of these actions fixed the problem but now I gotta catch up on this IDE learning; it's been quite a learning experience I have to say! Thank you very much for your time and advice; much appreciated!
Last updated: 2024-03-19

Post by struccc on Release SP20 - Changes in behaviour? ^{CODESYS Forge talk (Post)}
This... is not very practical for me - as I have a bunch of different classes - it's just doesn't seems to be very practical to define a NULL for each of them... Something like this I use in parameter definitions. For example: VAR_INPUT refVFD_Drive : REFERENCE TO FB_VFD_Drive := GVL_DUMMY.Dummy_VFD; END_VAR I use this to prepare objects for code I don't control: Typycally visualizations - had many troubles with references set on the fly, right before opening a corresponding visualization... And yes, the instance in GVL_Dummy reports itself as "Fake", so it does not influence the actual application at all. Actually this way I could invalidate a reference, just to set it to a "Dummy" instance.
Last updated: 2024-03-25

Post by mwandy on Codesys Project Protection ^{CODESYS Forge talk (Post)}
I'm having trouble finding clear answers on this. I'm looking for a way to make a Codesys project password protected so that if the project is distributed it can be used to log into a controller to view and debug logic. At this same time I want to prevent the project from being saved as well as edits being downloaded to the controller. Basically I want to make a whole project view-only. What is the beat way to achieve this? I have had minor success with access rights, which solves the problem with trying to login if the project doesn't match what is in the controller. However with this solution, edits can still be made and saved, possibly corrupting the core project, preventing future logins. Any suggestions?
Last updated: 2024-03-29

Post by alexgooi on Modbus writing on value change ^{CODESYS Forge talk (Post)}
The way I usally tackle this is by syncing only words (then you are able to use the FB above). If you then want to write a Boolean simply type it like this. Value[1].0 := Bool1; Value[1].1 := Bool2; Value[1].2 := Bool3; Uints have the same number of bits than a INT/WORD so these ones will work as well (they are only represented diffrently). A Real will work but you will loose some infomration in the conversion. If you want to keep the information you can convert 2 words to a float with a function (for example with the IEEE-754 standard) . In this way the syncing to the server is very simple and in the Codesys Program you decide what part of the word you want to use.
Last updated: 2024-04-03

Post by r-niedermayer on Issue with WebVisu on Raspberry PI ^{CODESYS Forge talk (Post)}
Regarding to your application: When clicking in the web visualization, the boolean variable will be tapped for both buttons. The LED in the web visualization lights up as long as the variable is true The used variables should come from the GVL, ad/or thePLC_Prg. We see no difference or problem in both projects: You have created a visuelement Push button a a tapper, that is supposed to control the variable in this way as expected. This is also reflected (switching Bool from false to true) in the program code, as well as in the (GVL declared) variables. Wherever the misunderstanding comes from: no, this is not memory or license related. Our best guess: it is probably more of an applicative/conceptual implementation.
Last updated: 2024-04-11

Post by jrsantab on Remote connection to ifm PLC & HMI ^{CODESYS Forge talk (Post)}
Hello, We are trying to access remotely a PLC (ifm 711S) and a HMI (ifm CR1077). Both are connected to a Teltonika RUT200 router. We establish the connection with OpenVPN Connect and can ping both controllers. We have a laptop that, most of the time, will allow Codesys connection to the controllers, but we have several other computers that are unable to connect, although all of them can ping successfully. We cannot find any difference in the configuration or software installed from one PC to another. If we connect to the router by WIFI, instead of VPN, all the computers work fine. We know that scanning the network will not work over a remote connection, so we input the controller IP directly. Has anyone had a simlar problem and can offer any hint on what to check to meke the connection run?
Last updated: 2024-04-11

Post by jrsantab on Remote connection to ifm PLC & HMI ^{CODESYS Forge talk (Post)}
Hello, We are trying to access remotely a PLC (ifm 711S) and a HMI (ifm CR1077). Both are connected to a Teltonika RUT200 router. We establish the connection with OpenVPN Connect and can ping both controllers. We have a laptop that, most of the time, will allow Codesys connection to the controllers, but we have several other computers that are unable to connect, although all of them can ping successfully. We cannot find any difference in the configuration or software installed from one PC to another. If we connect to the router by WIFI, instead of VPN, all the computers work fine. We know that scanning the network will not work over a remote connection, so we input the controller IP directly. Has anyone had a similar problem and can offer any hint on what to check to make the connection run?
Last updated: 2024-04-11

Post by danwoodlock on Rpi zero w lost license after 4.11 update ^{CODESYS Forge talk (Post)}
Hello all, Encountered an issue with my zero which seems to have happened after the 4.11 update. It now runs in demo mode (2hr) and I am trying to see what the appropriate steps are prior to contacting codesys directly. Background: I recently did a fresh install of w11 on my pc, so it seems "c:\ProgramData\CODESYS\Licenses\" only has information related to my pi5, which I licensed just this past Friday. I have all my license documentation about my rpi zero as far as the emails received, but when I try to claim using the ticket number it says its already been used, or something to that effect, which it was. Currently trying to perform device license reader, which is taking some time.
Last updated: 2024-04-14

Post by ac-spr on Runtime variable that indicates a user is online to the code ^{CODESYS Forge talk (Post)}
Looking to access a variable at runtime that indicates a user is online to the code. essentially want to use this value to feedback to the user on the HMI. we use turck and bosch rexroth devices if this information helps. I was hoping there was a variable at the application level, or a library that could be used but I was unable to find anything. I know there's a pop up when you try to login/ go online to the code when a user is already logged in, so the system does provide an indication that it knows already online, but has no access to a value from what I can see. Any help is appreciated
Last updated: 2024-04-22

Post by reinier-geers on License problem gateway ^{CODESYS Forge talk (Post)}
16.4 Epis What has it to do with the manufacture? It just a licence more not. So basicly the idee of codesys sucks. 3s acts like its posible to add a license. And then it depence on the manufacturer. Why ?? Its a computer !! has nothing to do with the manufacturer. Most dont what a basic licence because they have to pay for that. 3s is the problem not the manufacture of the hardware. Its like the licence of the raspberry pi. HMI is not working. Sorry you get a refund. Why suggest that its possible wen its not !!. It cost me a lot of time. Who pays my time. Why do i have to pay for somting thats not working.
Last updated: 2024-04-26

Post by reinier-geers on License problem gateway ^{CODESYS Forge talk (Post)}
Epis doesnt want Softmotion. I thought it was about the price. If it was possible it would be working already and i dont need an extra licence. Thats the problem of codesys. The software is running but hangs on its license. Epis made it posible to see the stick. I can see the license. Softmotion is there from 3.5.14.Xx Like is said And Motion control is alrady posible 15 year ago. And i only need a Sync of 2 drives. I want a good solution not a refund. Dont point to the manufacturer. The software is made by 3s not by epis .
Last updated: 2024-04-29

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