This defines how often, in seconds, a poll packet is sent to
the device being polled.
If burst mode(0) is chosen, then number of packets selected will
be sent out as fast as possible when the a3ComPollAction is set to
activate(2).
Common values the a3ComPollRate can be set to:
every 3 seconds (3) default every minute (60)
every 5 minutes (300) every 15 minutes (900)
every 30 minutes (1800) every hour (3600)
This object may not be modified if the associated a3ComPollReport
is equal to busy(2). When this object is successfully set,
a3ComPollReport will be set to idle(1).