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Application Note 11
Exception reporting
Exception reporting is a
mechanism by which the user can define critical data that needs to be
transmitted without undue delay. If an outstation detects a change on
one of its inputs which has been defined as critical it will send an
unsolicited message to the base-station, without waiting until it is
next polled. Similarly, if the base-station detects a change on one of
its inputs which has been defined as critical it will interrupt its normal
scan to immediately send a message to the
relevant outstation.
When used with outstations with large amounts of I/O, exception reporting significantly
reduces the delay before changes are reported.
When used with battery-powered outstations, exception reporting greatly reduces
the delay before changes are reported, and dramatically increases battery life.
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