We have an MD4-7 integrated with a CAN Steering unit. The MD4 and CAN Steering unit are the only two nodes on the CAN Network, which is the MD4-7's CAN-C and is J1939. There are several JFINs/JFOUTs to/from the MD4 and one of the GFOUTs is a heartbeat set up to be sent continuously every 20mS.
The CAN Steering unit has internal diagnostics and has occasionally indicated that it has lost communication from the MD4. For this fault to trip, the CAN Steering Unit would need to miss 1 full second of messages from the MD4. At this time, we have ruled out a hardware issue (it isn't a bad connection or terminating resistor in the CAN network).
What known settings/bugs/errors, if any, are there that could interrupt a continuous JFOUT from the MD4-7 CAN-C?
Customer support service by UserEcho