West Control Solutions DataVU 7 - Manual (Page 119)

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16 Configuration - External Analog Inputs
Status Status activates alarm monitoring.
Alarm type 1/
alarm type 2 “Min alarm” and “Max alarm” are available for each alarm type.
Limit value 1/
limit value 2 Limit at which the alarm is initiated.
Hysteresis
(differential) The hysteresis serves to prevent an unsteady alarm state (repeated, brief
switching on and off due to the noise of the input signal). The higher the value,
the larger the amount by which the present measurement must go above or
below the limit in order to cancel the alarm.
Alarm delay This parameter delays the reporting of an alarm. If the alarm is no longer
present after the alarm delay time has elapsed, it will not be triggered.
Alarm text 1/
alarm text 2 There is an alarm text for each type of alarm, which, in the event of an alarm, is
displayed in the “status & title bar” and entered in the event list.
On Alarm monitoring is active.
Min alarm Alarm is initiated if the value has fallen below the limit.
Max alarm Alarm is initiated if the value has gone above the limit.