Dear all, my case is not new, but maybe there are some news from Siemens about it..

I use TIA Portal v15 (wincc professional v15).

So I want to display alarm records form archive using datetime filter. My filter is very simple SQL query  (see attached file) …My filter work only in last 1000 records range.  Alarm Control do not show old data (the datetime range from some month ago).

In some Siemens-topics, I learn,  that WinCC Alarm Control show only 1000 last records….  And for solute this problem I should using multiple servers  - but this solution is very cumbersome for my case.

Also, it is not bad for me if Alarm Control can show 1000 records from any archive range, but very-very bad, if it can show only last 1000 records.

So, is any way to solute this problem by WinCC Alarm Control?

…maybe there is only one way - I should to develop custom  Entity Framework (or ADO net) AlarmViewer and connect to WinCC SQL Server from it .

If true, what database i should to use, what user/password should to be and what alarm table structure in database?

BR)

Dear bg2492, Thanks for links...

One more question. Cannot understand about "you can make selections for other blocks..".

Is it mean that i should group alarms by some criteria (for example by some fields:  Class, Info text ect.) - see attached. If i true understand, - there are large probability, that after some time, Alarm Control also will filled by last 1000 records (only with the same class or the same another block) . Older of messages will not be appears.

BR)