Piggyback on J1939 Backbone

Kelly Shuman 4 years ago in Other updated by Ulrik Zakariasson (Software development) 4 years ago 4
I would like to know if there would be any issue using the J1939 backbone to support an IQAN master/slave network. Eventually, we would be reading the J1939 information also. I will verify that the bus load isn't too great. Is it good to add the other devices on the network to the program to avoid collisions?
Satisfaction mark by Kelly Shuman 4 years ago
*J1939 backbone is from an engine to engine monitor.

This should be fine, but as you mentioned, one possible issue is CAN bus load.

Misinterpreting messages won't be an issue, the Expansion module bus is using 11 bit identifiers, that never collides with the J1939 29 bit identifiers, so that never collides.

Another thing to think of, as with any CAN network, is to ensure that drop-lines are not too long, and that the terminations are in the right places.

Thanks Gustav! I made sure to add a J1939 bus connected to the master module in the program, and gave the master a J1939 address that does not conflict with anything else.