Hello KristinH,
okay, sounds strange to me in case "piTest -x" returns permission issues.

Can you install the latest image using the steps from this helpful checklist:
https://kunbus-gmbh.atlassian.net/servicedesk/customer/portal/1/topic/d0c99319-2ea0-47bb-ae20-97a6a31770d7/article/836468748

Then ...

Hello Guest13,
this is nice - a reply with a YouTube video perfectly showing the erroneous behavior. Great!

The host name is RevPi right? This is the default hostname after flashing. But your RevPi device needs to be "married" with the hardware case, which means the device has to be initialized ...

Hello Guest13,I have just activated the VNC server with the current RevPi Bookworm 64-bit OS 01/2025. I did this from the command line as always with:

Hi KristinH,I understand that sometimes the modules show a red PWR LED after a restart. Then a reset driver or “piTest -x” makes it work again, right?There may be a newer version of the kernel and the PiControl driver. Update the system:
https://revolutionpi.com/documentation/getting-started ...

Hello Marc,
thank you for your detailed report of the problem.


Can you share the Modbus configuration with us?
Furthermore, a Kern.log would be interesting to see if there are any further relevant error messages.


Alternatively, send us an SOS report. This gives us a comprehensive overview ...

Hallo Moritz, im Datenblatt des RevPi MIO habe ich folgende Angaben gefunden:

Hallo Markus, das klingt aber spannend. Also ohne dass ich es selbst verifiziert habe, hoffe ich, dass dir dieses Tutorial hier helfen kann, das wichtige Thema 802.1x mit einem RevPi umzusetzen:
https://forums.raspberrypi.com/viewtopic.php?t=285379

Hello, so in principle you can proceed like this, you look at the helpful Revolution Pi Gateway Tutorial and use the MQTT Broker for this.

Hallo, entschuldige, das war in der Tat nicht mehr online - jetzt einfach noch einmal den Link öffnen, ich habe es ergänzt. Es kann sein, dass es nicht mit Python 3, sondern mit Python 2 funktioniert.

Hello Guest13, Which image did you use? If you are using the "RevPi Bookworm 64-bit Lite (01/2025)", the graphical user interface is not included. That would explain the behavior. Then switch to the "RevPi Bookworm 64-bit Default (01/2025)" image and just try it again.