Post by yann2021 on Execute a .py file with Codesys ^{CODESYS Forge talk (Post)}
Hello, I have a Raspberry Pi 3 which has a printer connected to his USB port. I have a PiFace Board on the Raspberry. I have a python script file (.py) to print a logo + a text. The script is working because when I execute it from the Raspberry terminal it works. Now, when I push a button on the PiFace I would like to execute the python script file to print. How can I do that ? Many thanks for your help and advices!
Last updated: 2025-08-26

Post by eboyd on AOI's ^{CODESYS Forge talk (Post)}
Hello, I'm currently working on transferring a project I recently created on Studio 5000 to CODESYS and unfortunately CODESYS isn't compatible with AOI's so I was wondering if there was anyone who could help me transfer these L5X AOI blocks to ST Function Blocks that I can import into CODESYS so I can use them for this project or if you know where I can find preexisting Function Blocks for these AOI's. Thank you so much!
Last updated: 2025-09-02

Post by eboyd on AOI's ^{CODESYS Forge talk (Post)}
Hello, I'm currently working on transferring a project I recently created on Studio 5000 to CODESYS and unfortunately CODESYS isn't compatible with AOI's so I was wondering if there was anyone who could help me transfer these L5X AOI blocks to ST Function Blocks that I can import into CODESYS so I can use them for this project or if you know where I can find preexisting Function Blocks for these AOI's. Thank you so much!
Last updated: 2025-09-02

Post by nha451 on EIP Scanner not receiving data from adapter ^{CODESYS Forge talk (Post)}
Hello, I have an EtherNet IP adapter (GoPxL) running with a virtual PLC. I have successfully connected the adapter with green icons next to it. On WireShark I can see the data coming from GoPxL but on CODESYS it shows up as all 0. My firewall is turned off and I have enabled the device to always update variables. I tested my set up with Profinet and I can receive the data. Please let me know if you have any suggestions!
Last updated: 2025-09-12

Post by eschwellinger on Licensing info not available. ^{CODESYS Forge talk (Post)}
yes and no ... if you run the license server on the host (to serve licenses to the docker instances / vplcs then there is no runtime which could check the licenses on the host. Therefore you need the CODESYS WBM to activate or check the licenes or you could use in CODESYS IDE the licensemanager ( not the one for the device licenses) but you have the the IP of the license server that he know where to search for the licenses ..tool options i guess to add it, will add a screenshot later.
Last updated: 2025-10-01

Post by mputaggio on Recipe Manager - RecipeManCommands, load & write wrong values, Bug? ^{CODESYS Forge talk (Post)}
Hello, We encountered the same issues on both recipe library versions 4.2.0.0 and the newest 4.3.0.0. The Arrays of structs get saved correctly but loading them restores only some indexes, while others get lost or completely wrong. We have been using the same recipes for the last two years on recipe manager vers. 3.5.17 withoud issues. There also seems to be a different behaviour in vers. 4.3.0.0 but it's still incorrectly loading the recipes. Did you find any workaround or solution? Codesys version used: 3.5.19.50
Last updated: 2023-12-15

Post by tvm on SEND_RECV_MSG function block on Schneider Machine Expert ^{CODESYS Forge talk (Post)}
Anyone else using the SEND_RECV_MSG function block for RS-485 communication on Schneider Machine Expert? I have had ongoing issues with it for several years, which Schneider tech support is aware of, but hasn't been able to fix. The latest version of Machine Expert (v2.2) appears to have broken some of the functionality altogether. I'd be interested in hearing from anyone else using this platform for serial communication.
Last updated: 2024-01-03

Post by toby on Codesys Control Raspberry PI 4.10.0 - missing 'Update Raspberry PI' option ^{CODESYS Forge talk (Post)}
Hi Edwin, Thanks for the message. My apologies I should have researched this more thoroughly before posting on here. I found a solution to my issue on this post: https://forge.codesys.com/forge/talk/Runtime/thread/6455efaa17/ I needed to run the 'CODESYS Installer' as an Admin, then install the RPi package v4.10.0 in to my package (v3.5 SP19 Patch 5). Thanks, hope you have a good day. Toby
Last updated: 2024-01-09

Post by ofey on two different OPC clients with different privileges ^{CODESYS Forge talk (Post)}
Hi! I have usually only connected one OPC client (our system) to an OPC server created in the codesys environment on a PLC. This OPC client has a lot of write privileges. A customer also want OPC access, but I want to restrict his access to only read certain values. Do you know if this is possible inside the single codesys runtime running on a controller?
Last updated: 2024-02-01

Post by tk096 on SMC_Interpolator + SMC_controAxislbyPos ^{CODESYS Forge talk (Post)}
Hi, you can define a start position for your GCode. How the start position can be defined depends on the CompileMode: For File and SMC_CNC_REF: Set the start position input of SMC_NCInterpreter (https://content.helpme-codesys.com/en/libs/SM3_CNC/Current/SM_CNC_POUs/NC2/Interpreter/SMC_NCInterpreter.html) For SMC_OutQueue: * Right-click on the CNC object in the project tree * Select Properties * Select the tab 'CNC' * Set the start position Concerning your second question: If the new set position cannot be reached with the given velocity limit (AXIS_REF_SM3.fSWMaxVelocity), SMC_controlAxisByPos will report bStopIpo and close the 'gap' with the given gap dynamics (SMC_controlAxisByPos.fGap*).
Last updated: 2024-02-07

Post by goki on WAGO RS485 (753-652) on a 750-362 ^{CODESYS Forge talk (Post)}
hi guys Maybe someone can help me in this case. Im working with codesys 3.5 with an PFC200 (750-8212) with a Modbus TCP conection to the 750-362. On the 750-362 i have a 4DO, 8DI and a RS485 interface card. the 4DO and 8DI cards a working fine but im strugling with the rs485 card. Does someone have a example for this?
Last updated: 2024-02-08

Post by thomasrohnerch on Color Change for Symbols not working ^{CODESYS Forge talk (Post)}
I have some Symbols from the Visualization Toolbox on my Target Visu on the Computer. I tried many Symbols, mainly Arrows. I'm able to control the visibility with condition e.g. "GVL.actual_testvalues.speed <= 0" But I can't do "Toggle color" with boolean GVL.b_toggle_color. Neither "TRUE" nor "FALSE" does change anything. Is this a known issue? I'm using CODESYS V3.5 SP19 Patch 5 + (64-bit). See attached file with more Version-Info. I'm currently using Style 6, Gradient axial 2, 3.5.12.0. I had the same issue with Default 3.5.16.0.
Last updated: 2024-02-08

Post by otdeveloper on IEC 61499 ^{CODESYS Forge talk (Post)}
It is being worked on by many companies and its even-driven function blocks seem like a natural evolution of the object oriented industrial programming I have seen Gary Pratt (author of the Book of CODESYS and much more) so expertly implement and explain. I would expect CODESYS to have this front and center on their sights and, if they do not, I would be very interested in learning why.
Last updated: 2024-02-09

Post by ferrim on IEC 61499 ^{CODESYS Forge talk (Post)}
IEC 61499 is probably something more complex than what you have correctly said so the prospects are interesting but we cannot ignore that it came out almost 20 years ago and has not won many hearts. I started to explore this world with a PLCnext controller because I love these devices based on RT Linux and Codesys is somehow usable with them but I have made little progress and I feel like inside a nutshell in the middle of the sea ;-) Gary's voluminous and precious book is always on my desk...
Last updated: 2024-02-10

Post by dhumphries on Control for Linux SL on Ubuntu Core ^{CODESYS Forge talk (Post)}
Try using a password instead of a public key to log into the controller. I have a video showing how to do this on a default installation of Ubuntu server, it should work the same for Ubuntu Core. https://youtu.be/rj0dOhgnGjs?si=352PmveEP7JXZnO- I sign in to the controller at about 6:40 in the video. I have never tried to remove the public key and revert to signing in using a password, but it looks pretty straightforward https://askubuntu.com/questions/745423/how-to-turn-off-password-less-login-for-ssh
Last updated: 2024-02-28

Post by camilloo on Control for Linux SL on Ubuntu Core ^{CODESYS Forge talk (Post)}
(dhumphries) I followed your advice and tried it on Ubuntu Server. Was a good choice. Your material was also very helpful :). Thanks for Your help! I no longer have problems connecting to Ubuntu. However, I still cannot install Virtual PLC. I'm currently getting a missing path message: "C:\Program Files\CODESYS 3.5.19.60\CODESYS\CODESYS Virtual Control for Linux SL\Delivery\virtuallinux\VirtualControlAPI.py." It looks as the package: "CODESYS Virtual Control for Linux SL" was not installed. But, there isn't one in CODESYS Store or I'm doing something incorrectly.
Last updated: 2024-03-03

Post by timvh on IFM CR711S Version Mismatch ^{CODESYS Forge talk (Post)}
You should ask IFM to provide you with the correct version of their controller packages. Then after you have installed this, you can select the correct version of the controller by right clicking on it in the device tree, update device, enable the option "Display all versions" and then select the version which matches your controller. Alternatively you can ask IFM to provide an update package which can update the runtime version on your controller to 3.2.0.0.
Last updated: 2024-03-05

Post by mp9876 on Device User Logon ^{CODESYS Forge talk (Post)}
Hi everyone, Had that problem before where I could not create another user but used the method just above and it worked great. My problem now is that I get this message when attempting to logon to the device: invalid user authentication on the target dev5, the new user created is pretty much a copy of the user 'Owner' except for the password. Any idea as to why I am always getting this "invalid user authetication on the target" message ? Using Codesys V3.5 SP19 Patch 6 + (64 bit) Regards
Last updated: 2024-03-16

Post by timvh on Device logon problem following fresh install ^{CODESYS Forge talk (Post)}
In your project you selected the "CODESYS Control Win V3" as device, but the device you want to connect to is a "CODESYS Control Win V3 x64". Those are not the same. If you double click on the device during the network scan, you will get information that these are not the same, but that you can change the type in your project to the x64 bit type. Another option is to "right-click" on the device in the device tree of your project and select "update device" then select the x64 type.
Last updated: 2024-03-19

Post by food on Beaglebone Black OPC-UA Server ^{CODESYS Forge talk (Post)}
Man, this was a long time ago. I think the problem probably stemmed from not loading the certificates from the client and the server on the server and client respectively in the correct manner. I believe I ended up getting around it just by removing all security on the server. In the end we did not move forward with that architecture so I never had to actually fix it.
Last updated: 2024-04-10

Post by alex2 on Codesys SVN ^{CODESYS Forge talk (Post)}
Hello Everyone. I have a question about the SVN module on Codesys. I am using Codesys V3.5.10 and installed Codesys SVN 4.2.5.1 but when i try to connect my SVN to codesys i have a message saying that there is no license for accessing the Url. I searched on the codesys store and it seems that "CODESYS Professional Developer Edition" is needed? Am i right? Do i also need to buy a USB key? Is there another edition but only for the SVN? I thank you in advance for your answers.
Last updated: 2024-04-27

Post by rene-h on VU.FbOpenDialog - TargetVisu - 2 x WebVisu ^{CODESYS Forge talk (Post)}
Hello, i am trying to find a way how to open Dialogs on a Single Visu. The options from VU.Globals are Target and WebVisu, but Webvisu opens the Dialog on both WebVisus and it should be separated. CurrentVisu can only be used when the Dialog is called from the Visu, but its all done in the Code. One Webvisu is for the User and one is for diagnostic reasons, and they should not be interfered from each other. Maybe someone can help me with this. Thanks
Last updated: 2024-06-13

Post by shaunvdm on OSCAT Scale_r function not working in LD 4.60 works in LAD2 on 3.5.21sp3 ^{CODESYS Forge talk (Post)}
Hi We have picked up an issue OSCAT_BASIC.Scale_r function call not working in the old lad and FBD version 4.60. Gives no output on the function call. When we convert this to LAD2 it works. As can be see by the two screenshot in normal LD not working in LAD2 it works. Please confirm if this is an issue with Oscat or with LAD in 3.5.21sp3, is there an workaround. Regards Shaun
Last updated: 2025-10-23

Post by shaunvdm on OSCAT Scale_r function not working in LD 4.60 works in LAD2 on 3.5.21sp3 ^{CODESYS Forge talk (Post)}
Hi We have picked up an issue OSCAT_BASIC.Scale_r function call not working in the old lad and FBD version 4.60. Gives no output on the function call. When we convert this to LAD2 it works. As can be see by the two screenshot in normal LD not working in LAD2 it works. Please confirm if this is an issue with Oscat or with LAD in 3.5.21sp3, is there an workaround. Regards Shaun
Last updated: 2025-10-23

Post by timvh on OSCAT Scale_r function not working in LD 4.60 works in LAD2 on 3.5.21sp3 ^{CODESYS Forge talk (Post)}
It seems like a bug in FBD. Work-around: If you click on the small line between the box and the output variable and delete this, the variable is removed. When you then assign a variable again (Ctrl-A), then you will see that the line will be a bit longer. If you then select the previous variable, you will see that it works.
Last updated: 2025-10-26

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