GE Industrial Solutions Entellisys 5.0 Integrator's Guide - Manual (Page 23)

System Status 23
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2 Entellisys Status Definitions
2.1 System Status
Modbus TCP clients have access to states of FlexLogic operands, protection elements, breaker
control, status, contact inputs/outputs, and virtual inputs/outputs through the Modbus TCP
interface.
After each protection pass, all the information regarding each operand's state is updated in
corresponding Modbus register. The following sections give a complete list of registers holding
state information of each operand.
NOTE: The 3rd party modbus client must determine which CPU is running as the “active CPU”
(Modbus register: “FlexLogic Active”) and FlexLogic health status (Modbus register: “FlexLogic
Status Message”).
2.1.1 Breaker Status
Each breaker has 13 different states shown in Table 2-5 . Each one of them corresponds to a
different bit in the data item.
Table 2-5 Breaker Control status bit field
The breaker states for all 30 breakers span across 25 consecutive modbus registers as shown in
Table 2-6 . See Breaker Control Operand States (25 items) on page 136 for memory locations.
Bit Value Notes
0 Breaker Opened
1 Breaker Closed
2 Breaker Locked Out
3 Closing Spring Charged
4 Active Disconnect Connected
5 Active Disconnect Disconnected
6 Secondary Disconnect Connected
7 Breaker Ready
8 Breaker Available
9 Breaker Open Failed
10 Breaker Close Failed
11 Breaker Fault
12 Reserved