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3.20  Activate monitoring scheduled events 
Select [Schedule]  [Start]. You can also activate monitoring events by clicking the schedule start icon on the 
toolbar. You cannot add, delete or edit an event during while the event monitoring process is active. Please see 
the chapter 5 for the details. 
 
3.21  Stop monitoring scheduled events 
Select [Schedule]  [Stop]. You can also stop the monitoring events by clicking [schedule stop] icon on the 
toolbar. Please see the chapter 5 for the details. 
 
3.22  Polling Interval Period 
Select [Option]  [Status Check Interval], enter the polling interval time in 
seconds. 
 
The polling interval time must be within the range from 10 to 3600 seconds.