In-situ 0034390, Руководство пользователя

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Incremental Mode
In Incremental Mode, alarms and warnings occur when the difference between two consecutive measurement values is less than
the minimum threshold value or greater than the maximum threshold value. This difference means the alarm threshold is a slope
instead of a fixed value.
Minimum
Threshold
Value
Maximum
Threshold
Value
Current
Measurement Value
Previous
Measurement
Value
Measurement
Delta
Result
10 60 200 150 50 OK
10 60 199 200 -1 ALARM
-50 50 300 260 40 OK
-50 50 300 200 100 ALARM
-50 50 200 240 -40 OK
-50 50 400 500 -100 ALARM
-6000 200 0 1000 -1000 OK
-6000 10 130 110 20 ALARM
-6000 10 130 125 5 OK
-10 8000 150 165 -15 ALARM
-10 8000 1200 0 1200 OK
Tips:
l
Minimum Threshold values should be negative, otherwise a decreasing parameter will always generate an alarm.
l
Maximum Threshold values should be positive, otherwise an increasing parameter will always generate an alarm.
l
Set Minimum Threshold values to large negative numbers to disable alarms for decreasing values (see the green values
above).
Probe Out of Range SMS Alarms in Absolute Mode
The Cube can send SMS (text) messages when alarms are triggered. SMS alarms are enabled in the General Information,
Parameters, and Functional Options section on the Alarms tab.
Below is an example situation showing when SMS messages would be sent for the "Reading from Probe Out of Range" alarm with
the following settings.