CAN Bus Hardware & Software for Trucks

Good day.

I am looking for hardware and software to read data from the CAN bus of various trucks. That's how I came across this forum. Unfortunately, my searches have yielded little information about CAN buses and trucks, so here are my questions:

Is it possible to use the CAN interface with the hardware RKS+CAN?
The power supply system in trucks operates on 24 volts.
I would prefer to analyze the data using my own code, so a ready-made diagnostic device wouldn't be very useful for me.

Best regards,
Max.

Hello,

The RKS+CAN CAN interface is powered either from the USB port or from the OBD2 connector.

The OBD2 connector is designed for 12V diagnostic ports; 24V diagnostic ports are different and cannot be used. The +24V must not be connected to the +12V terminal on the CAN interface!

It doesn't really matter, depending on what you want to do: An OBD2 adapter that matches the interface is included with the CAN interface, and of course, you can connect CAN-H, CAN-L, and ground to the desired buses in the truck. The onboard voltage of the respective vehicle then becomes irrelevant.

Best regards, Rainer.