[kamocat]

Sounds great!
I have some ideas on a CAN relay module.
But... I don't really want to deal with the low-level CAN handling.
Is there any chance you could make a "CAN prototype board" sort of thing?
Most of the IO mapping can be done on the cRIO in the communication VIs.
But a device that would have several prescribed analog PID inputs and outputs, and some general analog and digital inputs and outputs.

I can see several possibilities with this already:
Wire the pressure switch for the air compressor directly back to the CAN relay module that controls it.
Servo controllers for a camera pan, tilt, and zoom, all in one CAN module.