Question:
Can I set up an alarm filter for multiple areas and via Acked field simultaneously in an E3Broswer?
Solution:
Yes, you can. To set up this filter, you must select an alarm table in E3Browser, and then enable SQL’s direct edition on Query’s SQL tab.
You must create a variable for each Alarm area in the application. When you want the area to be displayed, the name of the desired area will be loaded into the variable; when you don’t want it to be displayed, either a different value or a null value will be inserted.
The SQL code below has three variables, therefore three alarm areas:
FROM Alarms
WHERE ((Alarms.area = ‘<%VarFilter1%>‘) OR (Alarms.area = ‘<%VarFilter2%>‘) OR (Alarms.area = ‘<%VarFilter3%>‘)) AND (Alarms.Acked LIKE ‘<%FiltroAck%>‘)
ORDER BY Alarms.E3TimeStamp ASC
VarFiltro and FiltroAck variables’ declaration respects the syntax of a string-type declaration.
Attached to this article is a sample application developed with E3 v. 3.5 b. 352.
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