Well, not only did Dave divide by zero, he did make a typo - it is connected to
RI04 in the CALCA block.
So, now let's focus on the historian issue......
Thanks,
Ashley Burks
Staff Process Engineer
Maintenance Reliability
Tronox, Ltd - Hamilton
Office Number: 662-343-8568
Email: Ashley.Burks@xxxxxxxxxx
"A Brighter Future - From the Ground Up"
-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Vandewater, Tom (HI Contractor)
Sent: Tuesday, March 22, 2016 2:25 PM
To: 'foxboro@xxxxxxxxxxxxx'
Subject: Re: [foxboro] AIM* Collection fails after divide by 0
That was my immediate thought also Joe;<)
-----Original Message-----
From: foxboro-bounce_freelists.org [mailto:foxboro-bounce_freelists.org] On ;
Behalf Of Joseph M. Riccardi
Sent: Tuesday, March 22, 2016 9:01 AM
To: foxboro_freelists.org
Subject: Re: [foxboro] AIM* Collection fails after divide by 0
CALC block .RI004 should be RI04... Hope it is just a typo.
Joseph M. Riccardi
386-451-7607 Cell
Joe_eRiccardi.com
"To give real service you must add something that cannot be bought or measured
with money; and that is sincerity and integrity." - Donald A. Adams
-----Original Message-----
From: foxboro-bounce_freelists.org [mailto:foxboro-bounce_freelists.org] On ;
Behalf Of Johnson, David (Redacted sender "David.Johnson" for DMARC)
Sent: Tuesday, March 22, 2016 2:57 PM
To: Foxboro_freelists.org
Subject: [foxboro] AIM* Collection fails after divide by 0
All knowing list,
HELP!
If we could do this without the freshman lecture on bounds checking, error
checking, and knowing that a divide by zero error was a possibility, that would
be great.
I did it, I divided by 0, the result was NaN and now the data that was being
collected by the AIM* historian has a 1.#QNB showing on the trend, and it is
NOT collecting historical data.
The value is a IND .RO0001, the number goes to a lead/lag LLAG block, the
resulting .OUT of the LLAG goes to a CALC block .RI004 and that is the item
that is trended. (Don't ask...)
The number being calculated by the IND block is now acceptable, all the numbers
are ok, but the AIM* historian will not collect the data.
We have transitioned the LLAG block from Auto to Man and back. We have
DELETE/UNDELETE the CALC block. We did an upload/done on the IND block. We
have stopped and restarted the historian instance that contains the point.
I'm at a loss.
Any help would be appreciated.
Thanks,
David
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