Re: [foxboro] Control Logix and Comm 30
- From: "Dykes, John" <John.H.Dykes@xxxxxxxxxxx>
- To: "'foxboro@xxxxxxxxxxxxx'" <foxboro@xxxxxxxxxxxxx>
- Date: Sun, 6 Mar 2011 14:57:42 -0800
We have used KFC to communicate to Controllogix via a gateway 30.
This solution also requires you to bpatch the config file for the
gateway. The gateway uses DF1 and the KFC is a DF1 device. If
anyone is interested, I can dig up the details and post.
___________________________________
James J. H. Dykes
Tesoro Petroleum
Golden Eagle Refinery
Technical Services
Process Controls Systems
CCB Box #1
150 Solano Way
Martinez Calif.
94553-1487
Phone:925.228.1220 Ext. 2930
E-mail:John.H.Dykes@xxxxxxxxxxx
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On
Behalf Of Jones, Charles R. (Chuck)
Sent: Thursday, March 03, 2011 2:16 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] Control Logix and Comm 30
"Has anyone communicated with multiple ControlLogix plcs to I/A Comm 30
whether it is by Modbus or AB Integrator 30 with KF etc modules or using
j478/878 Modicon modules?"
We communicate with ControlLogix via AB Integrator 30s with KF modules.
We communicate with multiple ControlLogix PLCs per AB30 two different
ways.
The first way is to do it using the method described in the Foxboro
manuals. That seems to work fine.
Another way that I like better is to connect a single ControlLogix PLC
to the AB30 and use it to act as a ControlLogix "gateway PLC". We use
an older 5000 unit that was still on the shelf after we upgraded all new
purchases to 5555 models. (It was a few years ago.) All Fox stuff
connects into the AB30. All Rockwell stuff connects into the
ControlLogix. There is only a single configuration between Foxboro and
Rockwell. In the ControlLogix PLC, create one array for communications
going to Fox. Create another array to handle communication from Fox.
In the AB30, create one compound to send data to Rockwell and another to
receive data. Adding new points is much easier. Eventually, I may need
to create another pair of I/O arrays. But, I have not filled up the two
I have now. We have been doing this for about 7 years. We probably
have 8-12 PLCs sending miscellaneous points through a single gateway
pair. Admittedly, none of the PLCs (or CPs, for that matter) are
sending their database wholesale thorough the gateway.
Chuck Jones
Automation Technologist
Tate & Lyle Lafayette Plant
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