You can find details for the beta with sp21 here viewtopic.php?t=4716

We have received your request and will discuss this internally. For recent systems we have just published a beta version with SP21 support. You can find details in this thread: viewtopic.php?t=4716

Nicolai

We have published a beta version of our Revolution Pi Library for CODESYS with support for SP21.

You can download the package from our website: https://revolutionpi.com/de/support/downloads#c1064

As always we're looking for your feedback. Happy testing!

Nicolai

The setup looks correct from the data you habe provided and there aren't any open issues with ConCan and bookworm (at least I'm aware of). Can you please share a kernel log so I can check if there are any errors? Also please double check the wiring (there are a few of wrongly marked ConCan modules ...

There were a few module where the marking was wrong on the x2 connector (pin 1 is left and not right, see module picture in https://revolutionpi.com/documentation/revpi-con-can/#connecting-revpi-con-can-to-the-can-bus). But at least the pinout on the left side of the module should show the correct ...

A while ago I developed a tool to make CAN testing easier. If you're interested you can get it from here: https://gist.github.com/nbuchwitz/eee269388816e4a6d84ad8fb24092573

The usage is pretty simple:

1. Copy the program to both devices
2. Start the script on one device in controller mode: ./can ...

Thanks for the detailed report. When I compare the data to the one you reported initially, I noticed that the baudrate differs (500000 vs 250000). Did you check that the baud matches on both ends?

Unfortunately not fornthe older library. Stretch was end of life in 2020 and even the lts support ended in 2022. Is there are particular reason why you cant update ro a recent os version?

The permission errors are probably due to missing privileges. Call the program with sudo.

Codesys sp21 isnt supported (yet). We're about to publish a beta release with sp21 support soon