E-10 N60 Network Stability and Synchrophasor Measurement System GE MultilinE.2 DNP POINT LISTS APPENDIX EEE.2.3 COUNTERSThe following table lists both Binary Counters (Object 20) and Frozen Counters (Object 21). When a freeze function is per-formed on a Binary Counter point, the frozen value is available in the corresponding Frozen Counter point.A counter freeze command has no meaning for counters 8 and 9. N60 Digital Counter values are represented as 32-bitintegers. The DNP 3.0 protocol defines counters to be unsigned integers. Care should be taken when interpreting negativecounter values.BINARY COUNTERSStatic (Steady-State) Object Number: 20Change Event Object Number: 22Request Function Codes supported: 1 (read), 7 (freeze), 8 (freeze noack), 9 (freeze and clear),10 (freeze and clear, noack), 22 (assign class)Static Variation reported when variation 0 requested: 1 (32-Bit Binary Counter with Flag)Change Event Variation reported when variation 0 requested: 1 (32-Bit Counter Change Event without time)Change Event Buffer Size: 10Default Class for all points: 3FROZEN COUNTERSStatic (Steady-State) Object Number: 21Change Event Object Number: 23Request Function Codes supported: 1 (read)Static Variation reported when variation 0 requested: 1 (32-Bit Frozen Counter with Flag)Change Event Variation reported when variation 0 requested: 1 (32-Bit Frozen Counter Event without time)Change Event Buffer Size: 10Default Class for all points: 3Table E–4: BINARY AND FROZEN COUNTERSPOINTINDEXNAME/DESCRIPTION0 Digital Counter 11 Digital Counter 22 Digital Counter 33 Digital Counter 44 Digital Counter 55 Digital Counter 66 Digital Counter 77 Digital Counter 88 Oscillography Trigger Count9 Events Since Last Clear
