CHAPTER 7: MODBUS COMMUNICATIONS
MODBUS MEMORY MAP
PQM POWER QUALITY METER – INSTRUCTION MANUAL
7–93
33
Phase C kW
–32500 to +32500
1
kW
0
34
Phase C kvar
–32500 to +32500
1
kvar
0
35
Phase C kVA
0 to 65400
1
kVA
0
36
3 Phase +kWh Used
0 to 65400
1
kWh
0
37
3 Phase +kvarh Used
0 to 65400
1
kvarh
0
38
3 Phase -kWh Used
0 to 65400
1
kWh
0
39
3 Phase -kvarh Used
0 to 65400
1
kvarh
0
40
3 Phase kVAh Used
0 to 65400
1
kVAh
0
41
Phase A Current Demand
0 to 7500
1
A
0
42
Phase B Current Demand
0 to 7500
1
A
0
43
Phase C Current Demand
0 to 7500
1
A
0
44
Neutral Current Demand
0 to 7500
1
A
0
45
3 Phase kW Demand
–32500 to +32500
1
kW
0
46
3 Phase kvar Demand
–32500 to +32500
1
kvar
0
47
3 Phase kVA Demand
0 to 65400
1
kVA
0
48
3 Phase Current THD
0 to 1000
1
0.1
×
%
0
49
Three Phase Voltage THD
0 to 1000
1
0.1
×
%
0
50
Phase A Current THD
0 to 1000
1
0.1
×
%
0
51
Phase B Current THD
0 to 1000
1
0.1
×
%
0
52
Phase C Current THD
0 to 1000
1
0.1
×
%
0
53
Voltage Van THD
0 to 1000
1
0.1
×
%
0
54
Voltage Vbn THD
0 to 1000
1
0.1
×
%
0
55
Voltage Vcn THD
0 to 1000
1
0.1
×
%
0
56
Voltage Vab THD
0 to 1000
1
0.1
×
%
0
57
Voltage Vbc THD
0 to 1000
1
0.1
×
%
0
58
Neutral Current THD
0 to 1000
1
0.1
×
%
0
59
Serial Control
–32500 to +32500
1
---
0
Table 7–12: Analog Output Parameter Range for Serial Ports (Sheet 2 of 2)
NO.
ANALOG OUT PARAMETER
RANGE
STEP
UNITS/
SCALE
DEFAULT
*
Due to the fact that –0 and +0 both exist for power factor, the value stored in the PQM serial register is the
opposite of the value shown on the display.
Example: If the range 0.23 lead (–0.23) to 0.35 lag (+0.35) is required, –77 (–100+23)and +65 (100–35) must be
sent.
Содержание Multilin PQM
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