2headtop - 2.2.7 synch check operand states, 7 synch check operand states – GE Industrial Solutions Entellisys 5.0 Integrator's Guide User Manual
Page 44
Entellisys Status Definitions
44
2
2.2.7 Synch Check Operand States
Each relay has 10 different states shown in
Table 2-44
. Each one of them corresponds to a different
bit in the data item.
Table 2-44 Synch Check status bit field
The relay states for all12 relays span across 8 consecutive modbus registers as shown in
Table 2-45
.
See
Synch Check Operand States (8 items) on page 136
for memory locations.
Table 2-45 Synch Check status offsets
Bit
Value
0
Dead Source Operated
1
Dead Source Dropout
2
Synch Operated
3
Synch Dropout
4
Close Operated
5
Close Dropout
6
V1 Above Minimum
7
V2 Above Minimum
8
V1 Below Maximum
9
V2 Below Maximum
Zone Number
Register
Offset
Bit Offset
Notes
Relay 1
0
0
Relay 2
0
10
Spans over two registers
Relay 3
1
4
Relay 4
1
14
Spans over two registers
Relay 5
2
8
Spans over two registers
Relay 6
3
2
Relay 7
3
12
Relay 8
4
6
Relay 9
5
0
Relay 10
5
10
Relay 11
6
4
Relay 12
6
14
7
8
Bits from 8 thru 15 are not used
and will always be set to 0