Re: [foxboro] ***SPAM***Re: Alarm Tracking software

>The biggest problem with nuisance alarms still occurs during unit =3D
> shutdown and startups.  I don't know if there is an elegant way to =
=3D
> address this.  But if someone has an idea, I am listening.
>=20
In our plant we have settled an analisis group to analize all the =
"posible"
alarms when the plant shuts down. Now we have tables with signals to =
change
their priorities to 5 based on  Interlocks contitions. The CADs will =
have a
filter to hide priority 5 alarms. So when an interlock trips all the
asosiated alarms change their priorities to 5 and when it is reseted  =
alarms
return to their original state. We choose to change priorities insteed =
of
inhibit them because we need alarms to know what is going on when some
equipment doesn=B4t start.=20

Regads
> Claudio A. Perez
> Control Systems Engineer
> PROFERTIL S.A.
>=20
>=20
>=20
>=20
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