7–76 PQM POWER QUALITY METER – INSTRUCTION MANUAL
MODBUS MEMORY MAP CHAPTER 7: MODBUS COMMUNICATIONS
F14
con’t
36 = 3 Phase Positive Real Energy Used ---
37 = 3 Phase Positive Reactive Energy Used ---
38 = 3 Phase Negative Real Energy Used ---
39 = 3 Phase Negative Reactive Energy Used ---
40 = 3 Phase Apparent Energy Used ---
41 = Phase A Current Demand ---
42 = Phase B Current Demand ---
43 = Phase C Current Demand ---
44 = Neutral Current Demand ---
45 = 3 Phase Real Power Demand ---
46 = 3 Phase Reactive Power Demand ---
47 = 3 Phase Apparent Power Demand ---
48 = Three Phase Current THD ---
49 = Three Phase Voltage THD ---
50 = Phase A Current THD ---
51 = Phase B Current THD ---
52 = Phase C Current THD ---
53 = Voltage Van THD ---
54 = Voltage Vbn THD ---
55 = Voltage Vcn THD ---
56 = Voltage Vab THD ---
57 = Voltage Vbc THD ---
58 = Neutral Current THD ---
59 = Serial Control ---
F15 UNSIGNED INTEGER - VT WIRING FFFF
0 = Off ---
1 = 4 Wire Wye / 3 VTs ---
2 = 4 Wire Wye Direct ---
3 = 4 Wire Wye / 2 VTs ---
4 = 3 Wire Delta / 2 VTs ---
5 = 3 Wire Direct ---
6 = Single Phase Direct ---
F16 UNSIGNED INTEGER
NEUTRAL CURRENT SENSING
FFFF
0 = Off ---
1 = Separate CT ---
2 = Calculated ---
F17 UNSIGNED INTEGER -FAILSAFE/NON-FAILSAFE FFFF
0 =Non-fail-safe ---
1 = Fail-safe ---
F18 UNSIGNED INTEGER - UNLATCHED / LATCHED FFFF
0 = Unlatched ---
1 = Latched ---
Table 7–11: Memory Map Data Formats (Sheet 5 of 20)
CODE DESCRIPTION BITMASK
Courtesy of NationalSwitchgear.com
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