Re: [foxboro] OSI tags for Foxboro I/A
- From: "Clement, Mark (KIDDMET)" <MClement@xxxxxxxxxxxxxxxxxxxxxxxx>
- To: "'foxboro@xxxxxxxxxxxxx'" <foxboro@xxxxxxxxxxxxx>
- Date: Fri, 4 Mar 2005 13:37:32 -0500
Hi All,
What does everyone use as a tag naming convention ?
Just loops numbers or combination loop# and area # or something better ?
What works best from end user perspective ?
Regards
Mark
-----Original Message-----
From: WMagda@xxxxxxx [mailto:WMagda@xxxxxxx]
Sent: Friday, March 04, 2005 1:38 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] OSI tags for Foxboro I/A
I agree with Brad, PI-SMT is the way to go using Excel. We started using
PI last September. It took us a few tries, but once you have it figured
out, it is easy to add/delete as needed.
Wally Magda
IE&C Spec Sr
Colorado Springs Utilities
PO Box 214
660 W. Monument Creek Rd
USAF Academy, CO 80840
719.668.9502 office
wmagda@xxxxxxx
brad.s.wilson
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03/03/2005 10:33 AM
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Re: [foxboro] OSI tags for Foxboro I/A
I remember the problems I had first setting up PI to read Foxboro ... but
once you know it, it's soooo easy. PI-SMT is definitely the way to go ...
it's an Excel add-in which provides a drop-down menu on the top Excel
command line. From that drop-down menu, you can either upload PI
configuration data to the spreadsheet, or download from the spreadsheet to
the PI configuration. The macros that are employed are exactly the same
as
the script files you would run if you were doing the configuration in DOS,
so I think it should work for older versions of PI also.
The most difficult thing, as I remember, was getting the location tags
correct ... location1 is an address that points to the source (in our case
101 is our AW51, when I get my other AW hooked up, that will be 102).
location2 is the collection group on the DCS (this was the most difficult
thing for me to understand, but I'm set up with 2 groups per CP - one for
analog points, one for digital points), location3 works with the type of
data (we have 3 is 32-bit floating, 5 is digital). This is explained
pretty well in the PI manuals, but those CP collection groups really had
me
going for a while.
The pointsource parameter differentiates the type of source device (in our
case, F=Foxboro, D=Yokagawa, C=calculated, A=Allen-Bradley, etc).
The exdesc parameter holds the DCS C:B.P reference
Using discrete inputs requires defining Digital Sets in PI which hold all
the potential values that the input may be. For example, you might have a
Digital Set called VALVESTATESET which contains the values Open, Closed,
Opening, Closing, Mismatch ... these would correspond to the various
values
that a GDEV.STAIND might return. That way, rather than seeing the STAIND
integer values in your PI archive, you'd see the text values.
Everything else I think is fairly straightforward.
Brad Wilson
ExxonMobil Chemical Co
Edison Synthetics Plant
732-321-6115
732-321-6177 fax
Brad.S.Wilson@xxxxxxxxxxxxxx
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