CHAPTER 7: MODBUS COMMUNICATIONS MODBUS MEMORY MAP
PQM POWER QUALITY METER – INSTRUCTION MANUAL 7–81
64 = Overvoltage Alarm Clear ---
65 = Current Unbalance Alarm Clear ---
66 = Voltage Unbalance Alarm Clear ---
67 = Phase Reversal Alarm Clear ---
68 = Power Factor Lead 1 Alarm Clear ---
69 = Power Factor Lead 2 Alarm Clear ---
70 = Power Factor Lag 1 Alarm Clear ---
71 = Power Factor Lag 2 Alarm Clear ---
72 = Positive kW Alarm Clear ---
73 = Negative kW Alarm Clear ---
74 = Positive kvar Alarm Clear ---
75 = Negative kvar Alarm Clear ---
76 = Positive kW Demand Alarm Clear ---
77 = Positive kvar Demand Alarm Clear ---
78 = Negative kW Demand Alarm Clear ---
79 = Negative kvar Demand Alarm Clear ---
80 = kVA Demand Alarm Clear ---
81 = Phase A Current Demand Alarm Clear ---
82 = Phase B Current Demand Alarm Clear ---
83 = Phase C Current Demand Alarm Clear ---
84 = Neutral Current Demand Alarm Clear ---
85 = Pulse Input 1 Alarm Clear ---
86 = Current THD Alarm Clear ---
87 = Voltage THD Alarm Clear ---
88 = Analog Input Main Alarm Clear ---
89 = Analog Input Alternate Alarm Clear ---
90 = Data Log 1 Alarm Clear ---
91 = Data Log 2 Alarm Clear ---
92 = Pulse Input 2 Alarm ---
93 = Pulse Input 3 Alarm ---
94 = Pulse Input 4 Alarm ---
95 = Pulse Count Total Alarm ---
96 = Pulse Input 2 Alarm Clear ---
97 = Pulse Input 3 Alarm Clear ---
98 = Pulse Input 4 Alarm Clear ---
99 = Pulse Input Total Alarm Clear ---
100 = Time Alarm ---
101 = Time Alarm Clear ---
102 = Trace Memory Trigger ---
F37 TRACE MEMORY USAGE FFFF
0 = 1 x 36 cycles ---
1 = 2 x 18 cycles ---
2 = 3 x 12 cycles ---
F38 TRACE MEMORY TRIGGER MODE FFFF
0 = ONE SHOT ---
1 = RETRIGGER ---
Table 7–11: Memory Map Data Formats (Sheet 10 of 20)
CODE DESCRIPTION BITMASK
Courtesy of NationalSwitchgear.com
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