Can you determine active alarms at a point in time?

[chris@blue-catalyst.co.uk]

Hi,

Is it possible to do a historical query to determine what active alarms there were at a specific point in time? For example 'what alarms were active at 15:00 yesterday?', if so how can this be achieved?

We are using the RDB manager with Oracle, if that makes any difference.

My understanding is that determining values for specific elements at a point in time is possible as the archive links the values with the datapoint elements.
However the alarm archive is a log of messages, so you can see what changed over time but not necessarily what was active at a particular point in time.

Thank you,

Chris

[leoknipp]

With WinCC OA standard functions you cannot determine which alarms were active/pending for a specific point of time.
By doing a historical query for a given time range you will get only the archived alerts which have changed in this time.

Best Regards
Leopold Knipp
Senior Support Specialist