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<== Date ==> <== Thread ==>

Subject: RE: Modbus/serial using Stream?
From: Mark Rivers <[email protected]>
To: Ralph Lange <[email protected]>, EPICS Tech Talk <[email protected]>
Date: Wed, 15 Feb 2012 14:16:55 +0000
Hi Ralph,

Is it serial/ASCII or serial RTU?

It seems difficult to do Modbus with Stream.  Your protocol would have to worry about byte order, CRC, etc.

Mark

________________________________________
From: [email protected] [[email protected]] on behalf of Ralph Lange [[email protected]]
Sent: Wednesday, February 15, 2012 3:44 AM
To: EPICS Tech Talk
Subject: Modbus/serial using Stream?

Hi,

has anyone ever tried to talk to a Modbus server (Modbus/serial) using
Stream device?
I am trying to get my unresponsive units to answer me, and looking at a
working Modbus protocol file would really really help me.

I know there is Mark's modbus driver, but I was more comfortable adding
another protocol file instead of adding another software package.
Until now, maybe?!

Thanks a lot,
~Ralph



Replies:
Re: Modbus/serial using Stream? Ralph Lange
References:
Modbus/serial using Stream? Ralph Lange

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