I'm trying to communicate two different MC-31 through J1939. They aren't in the same application, so I'm testing as they were connecting to outside J1939 modules (one mc31 is sending through JFOUT and the other has a JFIN waiting).
Through Generic CAN protocol I could make it work (I'm only testing an digital input into one lighting up a led onto the other module), but with J1939 I couldn't.
MC31 with the Digital Input
MC31 with the Digital Output
(generic outputs aren't connected because I was giving another try with J1939)
I'm pretty sure I misunderstood the PGN concept, but can't make any progress.
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