GE Industrial Solutions Entellisys 5.0 Integrator's Guide - Manual (Page 36)

Entellisys Status Definitions 36
2
2.1.14 Over (and Under) Demand Metering Alarm Operand States
There are 16 demand alarms. Each alarm relay has 6 different states shown in Table 2-30 . Each one
of them corresponds to a different bit in the data item.
Table 2-30 Demand Metering status bit field
The Alarm states for all 16 alarms span across 6 consecutive modbus registers as shown in Table 2-
31 . See Over Demand Alarm Flex Operand States (3 items) on page 136 and Under Demand
Alarm Flex Operand States (3 items) on page 136 for memory locations.
Table 2-31 Power Reversal status offsets
Bit Value
0 Under-Demand Alarm Pickup
1 Under-Demand Alarm Operated
2 Under Demand Alarm Dropout
3 Over-Demand Alarm Pickup
4 Over-Demand Alarm Operated
5 Over-Demand Alarm Dropout
Breaker Number Register
Offset Bit Offset Notes
Alarm 1 0 0
Alarm 2 0 6
Alarm 3 0 12 Spans over two registers
Alarm 4 1 2
... ... ...
Alarm 16 5 10