Re: [foxboro] Historian Questions

Sylvain Nadeau of Foxboro Canada has a configuration that allows a single
AIM* instance to use redundant collectors. Assuming that AIM* is running on
a Stratus box, you should have no more than a brief (60s) outage.

More to your question, you could write a script that check for the
historians operation.

Something along the lines of 

#!/bin/sh
mkdir -p /opt/monitor/logs
exec >/opt/monitor/logs/`basename $1` 2>&1
set -x

#Check on I/A Series Historian

for exe in <put the list of historian executables here; use ps -ef to see
the path names>
do
ps -el | grep $exe >/dev/null 2>/null
STATUS=$?
if [ $STATUS != 0 ]
then
# No match found; set alarm
/opt/fox/bin/tools/omsetimp -b T C:B.IN
else
/opt/fox/bin/tools/omsetimp -b F C:B.IN
fi
done

Then configure a CIN block, e.g, HIST_STATUS:HIST01, such that:
* its value comes from a software input 
* it alarms when its input is TRUE
* it sends the alarms to a useful alarm destination, e.g., FoxPage

When one of the processes is not running, the CIN input will go true and
generate an alarm. If they are all there, the alarm will be cleared.

An OM message will be generated each time the script runs, but, assuming a
reasonable period, it should not generate a huge load.

You can do the same thing for AIM*.

Also, with FoxPage you could be paged when it happens.

Regards,

Alex Johnson
Invensys Systems, Inc.
10707 Haddington
Houston, TX 77043
713.722.2859 (office)
713.722.2700 (switchboard)
713.932.0222 (fax)
ajohnson@xxxxxxxxxxx
For the latest information on ArchestrA, go to
www.invensys.com/Archestra.html.

 -----Original Message-----
From:   foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of pedersen.em@xxxxxx
Sent:   Thursday, November 13, 2003 10:39 AM
To:     foxboro@xxxxxxxxxxxxx
Subject:        [foxboro] Historian Questions

All,
I currently have four nodes, two with the AIM historian running off 
platform on NT and two running on platform legacy historians.  All of the 
nodes require some form of environmental reporting so that we can track 
our compliance with our various emissions permits.  We have had a few 
instances of the historians being shutdown and we have not been unable to 
provide the needed data to our environmental folks.  This has made us 
Control Systems people very unpopular lately.  I am working to collect the 
data in more then one historian but it would also be helpful if I could 
set up some type of notification when the Historians are not running or 
collecting data.  Does anyone know of a method to do that?  Any insight 
would be appreciated.

Eric Pedersen
Procter & Gamble Paper Products Company
 

 
 
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