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99 | NAVISET ADMINISTRATOR 2 USER’S GUIDE
Determining Polling Time Interval
There is a limit to the number of Proof of Play events a device can store internally. Whenever this limit is reached
the device simply replaces the oldest event with the newest one. When conguring Proof of Play it is important
to consider the polling time interval to ensure no events are overwritten within the display before they are polled
by NaViSet Administrator.
Important points to consider:
• NaViSet Administrator has no limit to the number of events that can be stored in the database.
• A single poll will read all of the events currently stored in the display.
• All of the events stored in the display will be erased after each poll.
• The Proof Of Play events in the display will be lost if AC power is removed, or if the display is turned off.
Displays should therefore be polled before sending a Power Off command.
The default polling interval of 15 minutes should be reduced in the following cases:
• The expected number of event changes of any device can exceed approximately 100 events every 15
minutes.
• Users need to be notied of alert conditions sooner than (up to) 15 minutes after the alert condition occurs.
The default polling interval of 15 minutes can be extended in the following cases:
• The above issues are not a concern.
• The time to query all of the devices can exceed 15 minutes. This can occur with high numbers of devices or
when other tasks are running concurrently.
Proof of Play records can be output to a text le or Excel spreadsheet as they are read (in real-time). In the Output tab,
check Output to File, click Select... and select a le name and type. The following le formats are supported:
• Excel spreadsheet in .xls or .xlsx format
• Tab delimited text le
• Comma delimited text le