Re: [foxboro] GDEV mismatch alarm in one direction only
- From: "William C Ricker" <wcricker@xxxxxxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Tue, 10 Sep 2013 17:45:33 -0400
Memory is fuzzy, but I seem to remember doing that on a paper machine
somewhere
with a couple of hundred motors around it. I think we fed something into
the
DSR_RB parameter to defeat the alarm when we didn't want it.
WCR
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On
Behalf Of Quay B. Finefrock
Sent: Thursday, September 05, 2013 9:59 PM
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] GDEV mismatch alarm in one direction only
Good day all,
I am using GDEV blocks to drive pumps from the DCS. In some cases, the pump
may be started locally from the HOA (RCU) and only stopped from the DCS.
For these pumps, I want a mismatch alarm if the operator attempts to
manually stop the pump (via GDEV.MANDSR) or if the pump is interlocked (via
GDEV.INTLCK) and the pump state does not change to STOPPED. But I don't
want to get a mismatch alarm when the operator starts the pump from the HOA.
Unfortunately, the signal from the HOA is not available in the DCS. Is
there any way that I can configure the GDEV to yield a mismatch alarm in one
direction but not in the other?
Also, I don't see any way to disable the mismatch alarm other than
inhibiting it. Is that the only way?
Regards,
Quay
Quay B. Finefrock
Singapore Phone: +65 9 327 2923
Brunei Phone: +673 883 1480
Philippines Phone: +63 921 400 2886
Malaysia Phone: +60 17 820 6900
Email: qbfinefrock@xxxxxxxxx
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