C-12 ALPS Advanced Line Protection System
GE Power Management
C.3 POINT LISTS APPENDIX C
C
C.3.4 BINARY COUNTER, FROZEN COUNTER
None of the above counters can be cleared with the Freeze/Clear (function code 9) operation. Instead, the control relay out-
put block points can be used to clear groups of counters. There is only one copy of each counter, so clearing a counter from
other serial ports or MMI causes the corresponding DNP counter point to be cleared and vice-versa. However, note that
counters 2 to 5 cannot be cleared using DNP protocol. The Breaker Health can be set via MMI or from other serial ports
using GE_MODEM, MODBUS or ASCII protocols.
Table C–5: POINT LIST: OBJECTS 20 & 21
BINARY COUNTER (OBJECT 20)
FROZEN COUNTER (OBJECT 21)
INDEX DESCRIPTION ROLLOVER POINT
0 Breaker Health Accumulator – Phase A 4294967295
1 Breaker Health Accumulator – Phase B 4294967295
2 Breaker Health Accumulator – Phase C 4294967295
3 Number Of Trips – Phase A 65535
4 Number Of Trips – Phase B 65535
5 Number Of Trips – Phase C 65535
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