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<== Date ==> <== Thread ==>
Subject: Re: About checksum error
From: Ralph Lange via Tech-talk <tech-talk at aps.anl.gov>
To: EPICS Tech Talk <tech-talk at aps.anl.gov>
Date: Sat, 26 Mar 2022 14:01:43 +0100
On input, StreamDevice parses and handles the incoming data in the order it is received. As the value arrives before the checksum, StreamDevice writes it to the record before the checksum comparison fails.
However, in case of a checksum error, StreamDevice sets the record to the appropriate error state (STAT/SEVR). That means the regular EPICS mechanisms (severity inheritance and IVOA/IVOV) can be used to deal with the situation inside the database and GUI tools can mark the value as invalid.

Cheers,
~Ralph

References:
About checksum error 李姣赛 via Tech-talk
Re: About checksum error Mark Rivers via Tech-talk
Re: About checksum error Maren Purves via Tech-talk
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