Vipul,
If memory serves me right, in the AIM Message tables there are two timestamp
fields for each record, one for when the event was generated and one for when
it was stored in the table. Note that one of these fields might be a string
data type and the other a long integer. Also, there could be a third field,
(might be named 'tenths') which contains some supplementary sub-second
timestamp information.
Regards,
Martin Theobald
Ex. 3354
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Vipul.Vijay@xxxxxxx
Sent: 16 March 2017 04:03
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] COMM10 Module vs Historian Timestamp accuracy
Dear All,
We are facing an issue where Timestamp accuracy of Historian Alarm Messages &
that of COMM10 (LP) Module is different, latter being more accurate.
Recently we had migration of Alarm Management System (AMS) from LP (COMM 10)
based to Historian based (via ODBC).
But after that we observed, COMM10 modules were giving "millisecond" also in
the "TIMESTAMP" field of alarm line but same is not available in Historian
Alarm line.
Please suggest some solution !!!!
Regards,
Vipul Vijay | DTA-CES | Instrumentation |
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