[foxboro] Foxselect / delete and undelete of CALCA blocks
- From: "Lowery, Kenneth" <Kenneth.Lowery@xxxxxxxxxxxxxx>
- To: "'foxboro@xxxxxxxxxxxxx'" <foxboro@xxxxxxxxxxxxx>
- Date: Fri, 7 Jun 2002 13:42:25 -0500
Hi Gang,
Bear with me this is my first posting on the list. Hope I am doing this
right. Our I/A system has been experiencing a couple of reoccurring problems
that I would like some input on.
Our system uses a AW51B, (2) WP51Bs, and a couple of go-global stations (
version 1.61). We have hard time getting one of our redundant cp sets, named
CP4002, to show up in Foxselect using go-global. There is no problem using
Foxselect directly on the AW or one of the WPs. The second problem we have
is with 3 CALCA blocks named, LOGIC0521, I53_FO1, and I53_FO2. In the last 3
months we have had to do a Delete and Undelete on these blocks 3 times to
get them to function properly. LOGIC0521 controls two valves named HV0521
and HV0522. For no apparent reason this block has received a " dump command"
to open HV0522 on 3 occasions. Upon examination of the I53_FO1 and FO2 in
Foxselect no cause could be determined. We had to "delete and undelete"
these 3 blocks before they would lineup and work. This part of the program
has had no changes made since 1998 and has given us no problems. Any
thoughts or ideals are appreciated.
Ken Lowery
Process Controls Specialist
Air Liquide America
Gulf Coast Pipeline
Phone (281) 474-8272
Pager (281) 624-1725
Fax (281) 474-8269
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