Re: [foxboro] L02-1 Equipment questions. Was RCNI, NCNI, FO SWITC H

From: "Johnson, Alex (Foxboro)" <ajohnson@xxxxxxxxxxx>
To: foxboro@xxxxxxxxxxxxx
Date: Thu, 27 Mar 2003 11:03:26 -0500
I never was a good speller.

Our switch vendor is Enterasys http://www.enterasys.com/home.html

The switch that I received when I bought my equipment was a SmartSwitch
2200. I believe that is what we are actually shipping.



Alex Johnson
Invensys Systems, Inc.
10707 Haddington
Houston, TX 77043
713.722.2859 (office)
713.722.2700 (switchboard)
713.932.0222 (fax)
ajohnson@xxxxxxxxxxx
For the latest information on ArchestrA, go to
www.invensys.com/Archestra.html.

 -----Original Message-----
From:   Johnson, Alex (Foxboro) [mailto:ajohnson@xxxxxxxxxxx] 
Sent:   Wednesday, March 26, 2003 10:07 AM
To:     foxboro@xxxxxxxxxxxxx
Subject:        Re: [foxboro] L02-1 Equipment questions. Was RCNI, NCNI, FO
SWITC H


Re: FoxCOM

This is the name of the protocol used between our FBMs and our I/A Series
Intelligent Field Devices. It is similar in function to HART, but faster.

The protocol used to communicate over our control network is usually
referred to as "COMEX/IPC".



Alex Johnson
Invensys Systems, Inc.
10707 Haddington
Houston, TX 77043
713.722.2859 (office)
713.722.2700 (switchboard)
713.932.0222 (fax)
ajohnson@xxxxxxxxxxx
For the latest information on ArchestrA, go to
www.invensys.com/Archestra.html.

 -----Original Message-----
From:   tom.vandewater@xxxxxxxxxxxxxx [mailto:tom.vandewater@xxxxxxxxxxxxxx]

Sent:   Wednesday, March 26, 2003 8:06 AM
To:     foxboro@xxxxxxxxxxxxx
Subject:        Re: [foxboro] L02-1 Equipment questions. Was RCNI, NCNI, FO
SWITC H


        My comments are marked with >> after each of your bullets below.  I
like your solution and think it should work, provided the advisory Graham
Heath mentioned doesn't contradict anything that is in the I/A Series A2(tm)
High Performance System Network User's Guide located at:
http://ips.csc.invensys.com/content/Documents/IASeries/b0400/B0400DV_A.pdf

Tom VandeWater

-----Original Message-----
From: Power Products [mailto:power_products@xxxxxxxxxxx]
Sent: Tuesday, March 25, 2003 11:40 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] L02-1 Equipment questions. Was RCNI, NCNI, FO
SWITCH



Thank you Tom VandeWater and Alex Johnson for your very good information.

To further clarify on my RCNI, NCNI and switches question

AW70 connects to RCNI (using Y cable)
>> YES

RCNI connects to 100FX FO switch
>> Needs to connect to two seperate switches for redundancy, and I heartily
agree with Alex Johnson that the extra money for the FO switch will be well
worth it.  he Media converters are a pain.

FO switch connects to a switch which has a single 100FX FO uplink port, the 
other ports RJ45 10/100TX
>> This should work but again need two for redundancy

10/100TX RJ45 switch connects to RJ-45 port on NCNI (according to document 
NCNI had RJ45 AND MT-RJ port)
>> NCNI does have both RJ45 and MT-RJ port. Need two NCNI's

NCNIs in 1x8 rack
>> NCNI's switch settings define bus. Set one to "A" and other to "B"

CP60s in 1x8 rack
>> YES

(the above switches in duplicate for redundant)
>> YES

Will this work ok?
>> My belief is yes but I am concerned that we may not know the rest of the
story because of the advisory that Graham Heath mentioned in his previous
note.  I was unable to find the advisory but it sound like there are some
contradictions to the B0400DV Rev. A I/A Series A2(tm) High Performance
System Network User's Guide.  
 
I think this better because no need for media converters, cost should be 
less and seems better solution. My only worry is if Foxboro uses some 
communications protocol that will not work with standard Ethernet switches?
>> The document linked below shows several methods of interconnections which
lead me to believe that there isn't anything in Foxboro's protocol,
(FoxCOM), that would prevent it from working on standard ethernet equipment.
Again, the advisory could contradict this!
http://ips.csc.invensys.com/content/Documents/IASeries/b0400/B0400DV_A.pdf

>> I agree and like your arrangement.  It has a lot of connection
flexability with both a FO and RJ-45 switch.  The future CP's, workstations,
and fieldbus connections will be easily made with this arrangement.

OA


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Re: [foxboro] L02-1 Equipment questions. Was RCNI, NCNI, FO SWITC H

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