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Figure 11-11 Alarm Config
The following entries are displayed on this screen:
¾ Alarm Table
Select: Select the desired entry for configuration.
Index: Displays the index number of the entry.
Variable: Select the alarm variables from the pull-down list.
Port: Select the port on which the Alarm entry acts.
Sample Type: Specify the sampling method for the selected variable and
comparing the value against the thresholds.
• Absolute: Compares the values directly with the thresholds
at the end of the sampling interval.
• Delta: Subtracts the last sampled value from the current
value. The difference in the values is compared to the
threshold.
Rising Threshold: Enter the rising counter value that triggers the Rising Threshold
alarm.
Rising Event: Select the index of the corresponding event which will be
triggered if the sampled value is larger than the Rising
Threshold.
Falling Threshold: Enter the falling counter value that triggers the Falling Threshold
alarm.
Falling Event: Select the index of the corresponding event which will be
triggered if the sampled value is lower than the Falling
Threshold.
Alarm Type: Specify the type of the alarm.
• All: The alarm event will be triggered either the sampled
value exceeds the Rising Threshold or is under the Falling
Threshold.
• Rising: When the sampled value exceeds the Rising
Threshold, an alarm event is triggered.
• Falling: When the sampled value is under the Falling
Threshold, an alarm event is triggered.
Interval: Enter the alarm interval time in seconds.