GE Industrial Solutions Entellisys 5.0 Integrator's Guide - Manual (Page 27)

System Status 27
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2.1.5 LT Overcurrent Operand States
Each breaker has 3 different states shown in Table 2-12 . Each one of them corresponds to a
different bit in the data item.
Table 2-12 LT Overcurrent status bit field
The breaker states for all 30 breakers span across 6 consecutive modbus registers as shown in
Table 2-13 . See PLC Interface (Read/Write Settings) on page 135 for memory locations.
Table 2-13 LT Overcurrent status offsets
Bit Value
0 Alarm Pickup
1 Alarm Operated
2 Alarm Dropout
Breaker Number Register
Offset Bit Offset Notes
Breaker 1 0 0
Breaker 2 0 3
Breaker 3 0 6
Breaker 4 0 9
Breaker 5 0 12
Breaker 6 0 15 Spans over two registers
Breaker 7 1 2
... ... ...
Breaker 30 5 10