INM 725B Rev 21
105
Many to one Mapping
Many registers/coils can be mapped to the same channel on the annunciator. They will be
OR’d together so the channel will show the OR’d sum of all the mapped sources. The Reflash
sequence on the channel can be used to reflash the alarm window if any of the source data
changes state.
In this example addresses 0, 1, 2 and 3 are OR’d to cell 0 channel 0 and addresses 4, 5, 6 and 7
are OR’d to cell 0 channel 1.
One to many Mapping
A register or coil can be mapped to many channels, if the source data changes state all the
associated channels will alarm.
In this example address 40001 is mapped to cell 0 channels 0, 1 and 2. Address 40002 is
mapped to cell 0 channel 3 and cell 1 channel 0. Address 40003 is mapped to cell 1 channels
1, 2 and 3.
