GE Industrial Solutions Entellisys 4.0 Integrator's Guide - Manual (Page 20)

Integrator’s Guide 20
1.1.2.11 Over (and Under) Frequency Flex Operand States
Each breaker has 6 different states shown in Table 1-22 . Each one of them corresponds to a
different bit in the data item.
Table 1-22 Over Frequency status bit field
The breaker states for all 30 breakers span across 12 consecutive modbus registers as shown in
Table 1-23 . See PLC Interface (Read/Write) on page 110 for memory locations.
Table 1-23 Over Frequency status offsets
Bit Value
0 Alarm Pickup
1 Alarm Operated
2 Alarm Dropout
3 Trip Pickup
4 Trip Operated
5 Trip Dropout
Breaker Number Register
Offset Bit Offset Notes
Breaker 1 0 0
Breaker 2 0 6
Breaker 3 0 12 This breaker’s information spans
over two adjacent registers
Breaker 4 1 2
... ... ...