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CAN Messages MC43 CAN-D

Tim Reen 3 weeks ago in IQANdesign • updated by Thomas Moberg (System support) 2 weeks ago • 1

We are having problems with CAN-D on an MC43, there is a a device on that bus using PGN's 65280 and 65281. If we change the PGN's of that device to 65290 and 65291 the device works properly. When we trace the CANbus, we see PGN's 65280 thu 65288 are present on the bus and the source address is 39. Our MC43 J1939 source address is set to 40 and there are no devices on the bus with SA 39. Changing the MC43 with a new unit has removed the SA 39 messages.

Replacement MC43:

Image 5510

The MC43 with added messages on CAN-D:

Image 5509


Is there a way to clear these unwanted messages?

Thomas Moberg (System support) 2 weeks ago

Have you pulled the application from that unit and checked that it does not have anything sending on that address?

It should not be sending messages on its own just like that.

Or do you have any routing rules that is sending the messages maybe?

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