All,
Many thanks to Xiaosong Geng who supplied the following info:
Hi John,
This is the info I got from Cornell.
Regards,
Xiaosong
------ Forwarded Message
*From: *Mike Forster <[email protected]>
*Date: *Wed, 01 Aug 2007 12:51:03 -0400
*To: *"Geng, Xiaosong" <[email protected]>
*Cc: *Kay-Uwe Kasemir <[email protected]>, John Dobbins
<[email protected]>
*Subject: *Re: Ethernet/IP Device Support and CompactLogix
Hi Xiaosong,
We have not had any further trouble with using EtherIP for CompactLogix.
The testing has not been extensive, but everything we have tried seems
to work.
All the best,
Mike Forster
On 8/1/07, *Geng, Xiaosong* <[email protected]> wrote:
Hi Mike,
How about the usage of Kay's ether_ip driver for CompactLogix? Is
everything working well except EIP_buffer_limit?
Shanghai Light Source in China is interested in it, because
CompactLogix is cheaper than ControlLogix.
Thanks a lot in advance.
Xiaosong
On 6/29/07 4:21 PM, "Mike Forster" <[email protected]> wrote:
Hi folks,
Just an update on our EtherIP with CompactLogix use:
We are communicating smoothly with the PLC at this point after
sorting out an anomaly.
We saw that when a record scan list became long (too many
records with the same scan rate), all the elements in that scan
list would stop responding. Eventually we traced this down to
the EIP_buffer_limit which was the default 500. This limit at
500 allows data to be sent that is 554 bytes long. After some
trial and error we found that the PLC responded correctly if the
data sent was 548 bytes long or less. When we set
EIP_buffer_limit to 494 our problems went away.
Mike Forster with John Dobbins
LEPP
Cornell University
Thanks for the info James. I should have been a bit more specific
however...
We are using controlLogix processors, such as the 5561 PLC, with
Kay's software. This
requires a chassis, PLC, and communication module (e.g. the
1756-ENBT). The compactLogix
platform is a potentially rackless configuration which, for a small
application, would
require only an external power supply and a compactLogix PLC (with
built-in ethernet port).
This translates to half the cost of a controlLogix system.
So I'm wondering if anyone has used any of the complactLogix family of
processors with Kay's software.
John
James B. Stevens wrote:
I have a working test setup in my lab with a ControlLogix
5561 PLC module & 1756-ENBT Ethernet/IP module that talks to a soft
ioc running on my Solaris box. I built the software
using Epics version R3.14.9 and ETHER_IP module 2-15-asd2.
--Jim S.
Subject: ethernet IP
To: Tech-talk <[email protected]>
MIME-version: 1.0
Content-transfer-encoding: 7bit
X-BeenThere: [email protected]
X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on
herald.aps.anl.gov
X-Mailman-Version: 2.1.6
List-Post: <mailto:[email protected]>
List-Subscribe: <http://www.aps.anl.gov/mailman/listinfo/tech-talk>,
<mailto:[email protected]?subject=subscribe>
List-Unsubscribe:
<http://www.aps.anl.gov/mailman/listinfo/tech-talk>,
<mailto:[email protected]?subject=unsubscribe>
List-Help: <mailto:[email protected]?subject=help>
List-Id: EPICS Mailing List <tech-talk.aps.anl.gov>
User-Agent: Thunderbird 1.5.0.12 (X11/20070718)
X-Spam-Status: No, score=-700.1 required=500.0
tests=FROM_HERALD,FROM_HESTIA,
SPF_HELO_PASS,UNPARSEABLE_RELAY,USER_IN_ALL_SPAM_TO,USER_IN_WHITELIST
autolearn=unavailable version=3.1.3
Has anyone used Kay's ethernet IP code with Allen-Bradley compact
logic processors?
John Sinclair
*****************************************
* *
* James B. Stevens * * Advanced Photon
Source *
* Controls & Computing Group *
* *
*****************************************
- References:
- Re: ethernet IP John Sinclair
- Navigate by Date:
- Prev:
Re: asyn 4.8 problem Matthew Pearson
- Next:
RE: asyn 4.8 problem Mark Rivers
- 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
- Navigate by Thread:
- Prev:
Re: ethernet IP John Sinclair
- Next:
Job Posting Tom Meyer
- 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
|