The Customize menu provides THREE functions
that help you to define and edit filter criteria for for filters in the
Alarm List or Event
List: New Filter Edit Filter and Delete Filter.
To set a new
filter, you must have selected Active
Alarms/Alarm Log or Active Events/Event Log in the Tree View in the left-hand section of
the screen.
You wish
to see all acknowledged messages that have occurred in the period from
April 10 to April 15, 1997. We will define and save three filter conditions
and logically link them by an AND operator. This filter criterion is then
saved under the name of “Filter1”.
Procedure
Press
Customize® New Filter.
The
dialogue Defining Filters for Alarm List
is opened.
Under
Edit Conditions, define the Begin Date.
Click
Add to List to save the first
condition in the Existing Filter Conditions
table.
Select
the logical operator AND.
Now
define the End Date and again
save it with Add to List.
Again,
select AND as the logical operator.
Finally,
define the third condition: Property: Acknowledge Date Condition: between Value: set date and time of the interval
Save
the third condition with Add to List.
Now
name the new filter
Confirm
/ Save with .
To display a list containing only those messages that meet the new filter
criteria, close the Defining Filters
for Alarm List dialogue and navigate to the Tree
View, on the left-hand section of the screen. Click Active Alarms
and select Filter1.
The Alarm Log
has the default filter Past 1day Log
which may have been enabled or disabled for your application by the system
design engineer. This standard filter can neither be changed nor deleted.
Format as 'Alarm Print'
If this option is selected, up to three extra lines will be shown for each alarm. These will show the historic object value, as it was, when the alarm was started, acknowledged or ended. This format is equal to the format used for alarm list printouts.