Experimental Physics and
Industrial Control System

John Maclean <[email protected]> · Mon, 24 Nov 2003 09:53:03 -0600

Bob Dalesio wrote:
> Is this something that we should cover in the next EPICS
> meeting?

Bob,
Yes, I'd imagine there would be interest. Modbus/IP seems quite popular,
particularly in facilities type apps.

Elder, 
it would be great if you would consider merging my changes. I'll send
them to you off-list.

John.

> 
> On Fri, 21 Nov 2003 20:59:39 -0600
>   "Elder Matias" <[email protected]> wrote:
> >John/Eric,
> >
> >We are willing to provide you with a copy of our version.
> > At CLS we run
> >most of our IOC software under either RTEMS or Linux.  In
> >this
> >particular case the driver is written for RTEMS and has
> >primarily been
> >used to talk to MODICON Momentum PLCs and a few other
> >related
> >applications, such as power meters from PML.  We are also
> >willing to
> >look at merging in changes you may have made.
> >
> >If there is wider interest I can have the driver and
> >design note tossed
> >onto an ftp site.
> >
> >Elder Matias
> >Canadian Light Source
> >University of Saskatchewan
> >
> >-----------------------------
> >
> >John Maclean <[email protected]>
> >Subject: Re: EPICS to WAGO PLC using Ethernet MODBUS
> >From: Eric Williams <[email protected]>
> >Date: Fri, 21 Nov 2003 10:10:32 -0800
> >Cc: [email protected]
> >In-reply-to: <[email protected]>
> >References:
> ><[email protected]>
> ><[email protected]>
> >User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.0;
> >en-US; rv:1.4.1)
> >Gecko/20031008
> >
> >John,
> >Can you please email me with a place where I can get
> >this?
> >I think the EPICS community should settle on one of these
> >to concentrate
> >their efforts on. I've been doing a survey of PLCs with
> >Ethernet field
> >bus capability, and MODBUS over TCP/IP is the most common
> >protocol in
> >the market.
> >--
> >Eric Williams
> >Advanced Light Source
> >Lawrence Berkeley Lab
> >
> >John Maclean wrote:
> >
> >
> >I have Ethernet-MODBUS support which is based on code
> >obtained from the
> >Canadian Light Source. The CLS code is written to run on
> >RTEMS and
> >supports Modicon PLCs.
> >I modified it to be OS independent, to work with 3.14.2
> >and to add
> >support for Siemens power meters.
> >John.
> >
> >Vladis Korobov wrote:
> >
> >
> >
> >Hi all,
> >
> >I have to connect from EPICS to WAGO System PLC using
> >MODBUS protocol
> >(via Ethernet).
> >Has anybody any software for such kind of communication?
> >
> >
> >Any suggestions and advise will be appreciated,
> >-----------
> >Vladislav Korobov
> >MKS-2 Group, DESY
> >Notkestr. 85
> >22607 Hamburg, Germany
> >tel. +49 40 8998 3947
> >e-mail:[email protected] or
> >        [email protected]
> >
> 
> Bob Dalesio
> [email protected]
> 410 557 0297 Maryland
> 505 667 5643 Los Alamos (New Number)
> 505 699 1632 Cell Phone
> 505 667 6087 Our Secretary (Lisa Marie)

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System