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Max number of paged parameters?

Codie 4 years ago in IQANdesign • updated by Gustav Widén (System support) 4 years ago • 1

Im having issues with some muxed j1939 parameters. I have seven sets of values that are using the paged protocol on the same PGN. What I'm finding is that i have a few of the PGN'S coming in correctly then if i make changes the ones that previously worked will quit working and the others will work.  Is there a limit to what the Iqan MD4 or  MC43 can handle? PGN is 65534 and page values are 79,77,90,7A,F7,F8,81. Im using a 0xFF page mask. Send times are as low as 10ms and as long as 200ms. 

+1
Gustav Widén (System support) 4 years ago

There is no hard limit on number of JFIN that use paged protocol. 

A practical limitation will be the amount of traffic there can be on the CAN bus. With repetition rates 10 ms you could quite easily bump into that limit. If that is the case, the behavior you will see will depend a lot on how the sending device handles the situation. 

I'd recommend checking that the messages are present at the bus, and also checking the bus utilization.

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