Experimental Physics and
Industrial Control System

"Paul Sichta" <[email protected]> · Mon, 10 Oct 2005 08:13:29 -0400

Sheng,

I visited SNS a few weeks ago and Ernest showed me the Beckhoff
hardware which he said you wrote a modbus driver/device support for.
Was that working well? I am thinking of trying out the Beckhoff stuff.
I will be supporting some modbus tcp/ip devices in the near future and
have the CLS and some upgraded (APS?) source but haven't looked at it
yet. What limitation did that have for you, so that you needed to
write a new version?
Regards,
--
Paul Sichta
Princeton Plasma Physics Laboratory
609-243-3477       FAX 3086

----- Original Message -----
From: "Peng, Sheng" <[email protected]>

To: <[email protected]>

Sent: Saturday, October 08, 2005 8:48 PM

Subject: FW: modbus over tcp/ip

________________________________
From: Peng, Sheng
Sent: Sat 10/8/2005 5:46 PM
To: Geoff Savage
Subject: RE: modbus over tcp/ip

So far as I know there are at least two of ModbusTCP support.

One is originally from Canada and has been updated couple of time for
different purpose.

Another one I developed in SNS is kinda new.
Since I wrote the new one and read thru all the source code of the
previous one, I hope I can give you more information about which one
might be better for you. I will go back to US tomorrow. Please tell me
what is your application.
Sheng

________________________________
From: Geoff Savage [mailto:[email protected]]
Sent: Tue 10/4/2005 11:01 AM
To: [email protected]
Subject: modbus over tcp/ip

Hi,
There are a number of sites supporting modbus over tcp/ip.  Can the
experts recommend a package for us to use at Fermilab?
Thanks, Geoff

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System