I don't know if this is where I should ask this, but I'm trying to get a Codesys OPC UA Client set up with a Kepware OPC UA Server ^{CODESYS Forge talk (Thread)}
I don't know if this is where I should ask this, but I'm trying to get a Codesys OPC UA Client set up with a Kepware OPC UA Server
Last updated: 2023-10-19

Post by theo on Error codesys raspberry ^{CODESYS Forge talk (Post)}
Bonjour a tous je souhaiterai connecter mon Raspberry a codesys en tant qu'automate cependant lorsque je enterent l'IP dans le encadré et que je fais entrer voici le message qui apparait, je suis français mais en anglais ça signifie : " vous n'êtes actuellement pas autorisé a exécuter cette action sur l'appareil. Please enter the username and password of a user account with the required access rights.
Last updated: 2023-12-08

Post by tcarlbom on Read tag values using external program ^{CODESYS Forge talk (Post)}
This is my first time posting in this forum and I am new to codesys. I am a fullstack developer and I am trying to figure out how the following. What would be the best approach to create a own/custom tag browser? Either directly in codesys ide or using a separate custom program (perhaps a winforms application). 1.a. Shall I parse the .project xml file to get a list of all tags in the project? 1b. Shall I use python scripting in codesys ide to get a list of tags? Once one have selected some tags. These tags shall be exposed to a python program which will be acting as a edge computer. It’s fine to be able to import a file. 2a. I found a library called codesys plchandler which (as I understand) acts a rest api server. Is this correct? If so, can I query the api from a custom python script, ie can query what tags exist in project and or read tag values? My research so far. From earlier projects I know that using opc ua would be perfect for this but from my opinion it’s bloating the plc since it’s resource intensive. So opc ua is not an option. Codesys automation server is neat. But I don’t want to rely on some cloud services and subscription based pricing. There seem to be several interesting codesys libraries like mqtt, tcp server and NVL sender which would help me expose plc tags. But all have a common problem. One have to manually write what tags which will be used in these function blocks. I want a similar experience like “selecting” tags in the opc ua or the codesys tracing, ie a tag browser.
Last updated: 2024-06-28

Post by dkugler on Converting hex bytes to float ^{CODESYS Forge talk (Post)}
have a look at UNIONs. With a union you are able to write single bytes to the same adress area which belongs to a float variable at the same time. I like to do a lot of convertions belonging to interfaces and fieldbus in this way, f.eg. word / byte swapping etc.
Last updated: 2024-08-06

Post by renezw on Access to a running Codesys instance via Python ^{CODESYS Forge talk (Post)}
I have a Codesys environment running and would like to inject code into the running environment at the same time using a code generator with Python via the console. So far I can only start a new Codesys instance with Python, but not access an already running one. How can I access the running Codesys instance?
Last updated: 2024-09-03

Post by faceplant on Request a dark mode for CODESYS ^{CODESYS Forge talk (Post)}
PLEASE
Last updated: 2024-12-18

Post by somlioy on CODESYS Control for PFC100 SL Firmware upgrade ^{CODESYS Forge talk (Post)}
Hi We delivered a system with a PFC100 using the CODESYS Control for PFC100 SL runtime a few years back. The system has once been decommissioned and are now to be commissioned again. Back then, there were only single licenses for the runtime. Can I now upgrade the firmware and runtime without purchasing a new license?
Last updated: 2025-02-27

Post by jkopicz on How can you get the active frame index from a frame ^{CODESYS Forge talk (Post)}
In my project, I have frames that I would like to read the current active index. I change the frame index using the onclick properties of a button, then change frame index. I need to do some logic based on which frame index is selected. Is there a way to read the current active index of a frame?
Last updated: 2025-03-11

Post by peterkcontrols on Making a Visu Element normally invisible and visible if variable is true ^{CODESYS Forge talk (Post)}
Hello I would like an element in my visu to be only visible when a certain Variable is true, currently it is only capable of being normally visible and then invisible if a certain variable is true. Is this possible without programming a new variable to be the opposite of my desired control variable? Thanks.
Last updated: 2025-03-12

Post by hismoon on Inheritence of struct, ^{CODESYS Forge talk (Post)}
--- deleted. Was a bug.
Last updated: 2025-03-14

Post by hismoon on Inheritence of struct, ^{CODESYS Forge talk (Post)}
--- deleted. Was a bug.
Last updated: 2025-03-14

Post by hismoon on Inheritence of struct, ^{CODESYS Forge talk (Post)}
--- deleted. Was a bug.
Last updated: 2025-03-14

Post by hismoon on Inheritence of struct, ^{CODESYS Forge talk (Post)}
--- deleted. Was a bug.
Last updated: 2025-03-14

Post by hismoon on Inheritence of struct, ^{CODESYS Forge talk (Post)}
--- deleted. Was a bug.
Last updated: 2025-03-14

Post by chanmina on Engineering IDE from linux? ^{CODESYS Forge talk (Post)}
For a long time now, I have used VirtualBox on a Linux Mint host to run the Codesys IDE without any problems. Every day, I put it to good use, and it never fails. Wine is not something to be trifled with. Probably not worth the effort. For Linux PLC developers, Codesys Go might be a game-changer. Very excited to give it a try.
Last updated: 2025-05-27

Post by gseidel on can not new a cam table in codesys V3.5 SP20 ^{CODESYS Forge talk (Post)}
Hi liai, I tried it with a fresh CODESYS SP21 Patch 2 installation and SoftMotion 4.18, but cannot reproduce the compile errors. Could you please upload a project archive that has the errors? Then I can have a deeper look. https://dl.codesys.com/s/q4KcbKCcZndg6oR Best regards, Georg
Last updated: 2025-09-24

Post by snhatton on How to write a for loop in ladder? ^{CODESYS Forge talk (Post)}
Hi there, little late to the party, but you could also use the ST block for in-line ST code and implement a for loop as you normally would. ST Block is super handy if you just need a small amount of in-line structured text code without creating a new POU. Hope this helps!
Last updated: 2025-10-06

Post by rene2 on How can you get the active frame index from a frame ^{CODESYS Forge talk (Post)}
I think I struggle with the same issue. I tried the currentVisu variable but this is the active Visualisation. I have a dialog with a frame with frame configuration like in the picture. I would like to use the index te be used to make a button look like it's pressed/selected.
Last updated: 2025-10-14

Post by reinier-geers on SM3 motion project ^{CODESYS Forge talk (Post)}
Hi, i try to setup a softmotion programm. Controller version 15. Ethercat, When is scan Devices then it install's the drives. 4.11 . Somehowe they have a vesion 16 libary. I tried to install new but stil problems. I tried version 19. Then i get a Visu version problem. What can i do ? Why are ther always problems with a new version ?
Last updated: 2023-12-18

Post by fabmorlino on Codesys v3.5 SP11 and Python scripts ^{CODESYS Forge talk (Post)}
Hi, I'm using codesys from a while, but I 'm not able to write phyton scripts. I whould like generate a PC txt file with the content of specific GVL codesys table, or better for my scope: a txt file from a STRUCT defined in CODESYS project. Any kind man could help me with some clue? Thanks Fabrizio
Last updated: 2024-04-05

Post by dkugler on build (F11) / generate code using a python script file ^{CODESYS Forge talk (Post)}
After a project is opened and I have done some changes, I want to start the build or code generating process by a python script file. After the build is done I a Windows sound/beep should appear. Anyone has an example or hint how the .py file has to look like? Thanks!
Last updated: 2024-04-10

Post by plunje on Sensor not set ^{CODESYS Forge talk (Post)}
Thanks a lot!
Last updated: 2024-05-28

Post by davidbo on Toradex and CODESYS and licensing ^{CODESYS Forge talk (Post)}
I am evaluating a Toradex product for use with CODESYS. Toradex and CODESYS are partners, but using "CODESYS Virtual Control for Linux ARM64 SL" together with a carrier board "Verdin mallow" However it doesn't seem to be a soft container for licenses. So how do I install a license
Last updated: 2025-10-20

Post by anhkdv on Motion FB Error ^{CODESYS Forge talk (Post)}
Hi! I'm a newbie. I'm doing a project for Delta Robot using Codesys and got this error when trying to move in a dynamic coordinate system. This error occurs when I use FB MC_MoveLinearRelative and FB SMC_GroupWait
Last updated: 2023-10-08

Post by nathant on Saving variable values on power cycle (RevPi Connect) ^{CODESYS Forge talk (Post)}
Hello, this seems to be a known issue, but persistent/retain variables don't seem to work properly on RevPi devices. Is there a workaround to this? All I need is for a few configuration variables to be remembered through power cycle.
Last updated: 2023-12-03

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