PID vs. PDL - E1.20 RDM (Remote Device Management) Protocol Forums

May 1st, 2012

ericthegeek

Task Group Member

Join Date: Aug 2008

Posts: 390

Quote:

Originally Posted by erwin

The question should probably more be like; when PID and PDL disagree, should I assume spec is always right and mark the packet as broken?

YES!!! Mark the packet as broken. If the received PDL doesn't match the expected value for that PID, then the packet is corrupt and should be flagged as such.

This is a common problem, I've seen many devices that send incorrect PDLs, especially on ACK SET_RESPONSE packets. Such behavior can cause interoperability problems.

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