Experimental Physics and
Industrial Control System

1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 <2016> 2017 2018 2019 2020 2021 2022 2023 2024	Index	1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 <2016> 2017 2018 2019 2020 2021 2022 2023 2024
<== Date ==>		<== Thread ==>

Subject:	RE: Caget packet structure
From:	Stephen Molloy <[email protected]>
To:	"Johnson, Andrew N." <[email protected]>
Cc:	"[email protected]" <[email protected]>
Date:	Sat, 18 Jun 2016 20:09:46 +0000

Thanks Andrew and Mark.
I hadn't realised the complexity behind caget. I'll try to find another way to get the functionality I need.
Thanks for the fast replies.
Steve

From: Johnson, Andrew N. [[email protected]]
Sent: Saturday, June 18, 2016 10:00 PM
To: Stephen Molloy
Cc: [email protected]
Subject: Re: Caget packet structure

Hi Stephen,

The CA protocol isn't particularly simple so I wouldn't really recommend trying to write your own implementation even of just part of it. However there is documentation of the packet types and their contents available; if you do go into this you'll want to install the Wireshark plugin for debugging purposes, the one from Michael Davidsaver is probably the most up to date. Here's the documentation:

http://www.aps.anl.gov/epics/base/R3-15/4-docs/CAproto/index.html

Don't worry about mixing versions, I don't think we actually document the most recent additions to the protocol here yet anyway.

- Andrew

Sent from my iPad

On Jun 18, 2016, at 2:44 PM, Stephen Molloy <[email protected]> wrote:

Hi,
I'd like to send and receive a caget command over the network using a microcontroller. Could someone let me know the structure of the packet that I need to send to the network? And the structure of the packet that will come back?
Thanks,
Steve

References:: Caget packet structure Stephen Molloy; Re: Caget packet structure Johnson, Andrew N.

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ANJ, 15 Jul 2016

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System