Planet Technology IDL-2402 - Manual (Page 200)

StartupAlarm
Set the alarm type that may be sent. Options are Rising, Falling, and Both.
Rising or Both: If the first sample after this entry becomes valid is greater than or
equal to the Rising Threshold, then a single rising alarm will be
generated.
Falling or Both: If the first sample after this entry becomes valid is less than or
equal to the Falling Threshold, then a single falling alarm will be
generated.
Value This field shows the value of the monitored data.
Rising Threshold RMON alarm rising threshold (0~4294967295).
Falling Threshold RMON alarm falling threshold (0~4294967295).
Rising Event Index
This index is used when a rising threshold is crossed. You must refer to the
index of RMON Event table. If there is no corresponding entry in the Event table,
then no association exists.
Falling Event Index
This index is used when a falling threshold is crossed. You must refer to the
index of RMON Event table. If there is no corresponding entry in the Event table,
then no association exists.
Following figure shows an example of RMON alarm for ABSOLUTE sample type. As
shown in the figure, the counting value keeps increasing. But when the value overflows,
the system will count from zero again. The sample in T2 is the first one crossing the
Rising Threshold, so an alarm occurs. No alarms will be generated afterwards unless the
counting value overflows and count from zero again (the sample in T10 causes an alarm
again).
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