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<== Date ==> <== Thread ==>
Subject: Re: [EXTERNAL] Experiences using RS-485 Multi-Drop with StreamDevice?
From: Ralph Lange via Tech-talk <tech-talk at aps.anl.gov>
To: EPICS Tech Talk <tech-talk at aps.anl.gov>
Date: Mon, 26 Oct 2020 18:02:34 +0100
Thanks a lot Matt,

That unique ID is in addition to the RS-485 address, like a transaction counter.
It looks like any single controller can cope with multiple commands being received at high speed, and will send the responses in some (any) order, using the unique ID from the respective command in the replies for the master to tell them apart.
This "parallel" mode probably does not apply as StreamDevice/Asyn is serializing the protocols and waits for the response before sending the next request.

Thanks again,
~Ralph
Replies:
AW: [EXTERNAL] Experiences using RS-485 Multi-Drop with StreamDevice? Zimoch Dirk (PSI) via Tech-talk
References:
Experiences using RS-485 Multi-Drop with StreamDevice? Ralph Lange via Tech-talk
RE: [EXTERNAL] Experiences using RS-485 Multi-Drop with StreamDevice? Pearson, Matthew R. via Tech-talk
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