Re: [foxboro] inhibit of alarming
- From: "Hans Bauwens" <Hans.Bauwens@xxxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Mon, 8 Mar 2004 14:54:32 +0100
Thanks Jerry and to everybody else,
It was indeed conditional alarming. I've build the way you've mentioned
and it works fine.
Hans=20
-----Original Message-----
From: Jerry Hidahl [mailto:Jerry_Hidahl@xxxxxxxxxxxx]=20
Sent: vrijdag 5 maart 2004 21:44
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] inhibit of alarming
Hans,
You want "Conditional Alarming".
Configure the nitrogen flow alarms and the mixer run status to inputs
for a
LOGIC block. Use the LOGIC block to "gate" the alarms from the CINs for
the
nitrogen flows to a Boolean Alarm block (BLNALM). Turn the state alarm
option (SAO parameter) OFF for each of the CINs, and use the BLNALM
block
for all the alarms.
In the LOGIC block, "AND" each of the nitrogen flow alarms with the
mixer
run state, and set a corresponding boolean output accordingly. Connect
the
inputs on the BLNALM block to the outputs from the LOGIC block. Consult
the
Invensys book Integrated Control Block Descriptions (BO193AX) if you
need
more detail.
Jerry Hidahl
=20
"Hans Bauwens"
<Hans.Bauwens@per To:
<foxboro@xxxxxxxxxxxxx>
storp.com> cc:
Sent by: Subject: [foxboro]
inhibit of alarming =20
foxboro-bounce@fr
eelists.org
=20
=20
03/05/04 08:18 AM
Please respond to
foxboro
=20
=20
Hello all,
We are having a mixer which is stopped and started frequently. When the
mixer is stopped , we don't want to have alarmering on the CIN blocks
which are indicating the nitrogen flows to the seal and the powersupply
to it. I have enabled this by connecting the inhibit parameter of the
corresponding CIN blocks with the running contact of the mixer. The only
problem I am having with using the INHIB parameter , is that there is a
message send to the alarm manager when you disable and and enable the
inhibit parameter. When the mixer is stopped the inhibit parameter of 3
CIN 's is enabled and 3 messages are send to the alarm manager. When
the mixer is started, we have again 3 message send to the alarm manager.
Does anybody now of a way to disable this function ?
Hans Bauwens
Perstorp Oxo Belgium AB
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