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FIGURE 18 - TRIGGERS SCREEN
TRIGGERS SCREEN
Trend Setup Screen Overview
This screen allows the Operator to select desired data
collection start/stop triggers. The trend data collection
can be set to start or stop based upon the status of up to
two selected triggers.
The Triggers can consist of digital events or analog
parameters compared to thresholds. The Triggers can
be used individually or in combination.
The parameter selected as the primary trigger is com-
pared to a value selected as the primary test, using the
Primary Operator as a comparator. If it is evaluated as
true, then the data collection is started or stopped (after
any selected trigger delay) per the selected trigger Ac-
tion.
A secondary trigger can be evaluated with the primary
trigger to start/stop data collection. The Primary to
Secondary Operator is used to define the trigger combi-
nations required to be true to start/stop data collection.
The Secondary Trigger is setup and evaluated the same
as the Primary Trigger. Entry fields are as follows:
JOHNSON CONTROLS
If Primary Trigger
Is Primary Operator
Primary Test
Primary to Secondary Operator
Secondary Trigger
Is Secondary Operator Secondary Test
Then Trigger Action the Data Collection
With a delay of Trigger Delay
After the desired Triggers are set, the "START" key on
the TREND Screen must be manually pressed before the
triggers will be evaluated. While waiting for the triggers
to start or stop data collection, a status message is dis-
played in the upper right corner of the TREND Screen
describing the pending action.
Display Only
N/A
FORM 155.21-O1 (615)
LD14072
49
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