Eastron SDM72DM, User Manual, Page: 14 / 16

Eastron SDM72D-M User Manual V1.1
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Holding Registers
30031
Phase 1 power factor (1).
4 Float
None
00 1E
30033
Phase 2 power factor (1).
4 Float
None
00 20
30035
Phase 3 power factor (1).
4 Float
None
00 22
30043
Average line to neutral volts.
4 Float
V
00 2A
30047
Average line current.
4 Float
A
00 2E
30049
Sum of line currents.
4 Float
A
00 30
30053
Total system power.
4 Float
W
00 34
30057
Total system volt amps.
4 Float
VA
00 38
30061
Total system VAr.
4 Float
VAr
00 3C
30063
Total system power factor (1).
4 Float
None
00 3E
30071
Frequency of supply voltages.
4 Float
Hz
00 46
30073
Import active energy
4 Float
kWh
00 48
30075
Export active energy
4 Float
kWh
00 4A
30201
Line 1 to Line 2 volts.
4 Float
V
00 C8
30203
Line 2 to Line 3 volts.
4 Float
V
00 CA
30205
Line 3 to Line 1 volts.
4 Float
V
00 CC
30207
Average line to line volts.
4 Float
V
00 CE
30225
Neutral current.
4 Float
A
00 E0
30343
Total active Energy (2)
4 Float kWh 01 56
30345
Total reactive energy
4 Float kVArh 01 58
30385 resettable total active energy 4 Float kWh 01 80
30389 resettable import active energy 4 Float kWh 01 84
30391 resettable export active energy 4 Float kWh 01 86
30397 Net kWh (Import - Export) 4 Float kWh 01 8C
31281
Total import active power
4 Float W 05 00
31283
Total export active power
4 Float W 05 02
Instruction:
(1)
：
The power factor has its sign adjusted to indicate the direction of the current. Positive refers to forward
current, negative refers to reverse current.
(2)
：
Total active energy equals to export.
Holding register are used to store and display instrument configuration settings. All holding registers not listed
in the table below should be considered as reserved for manufacturer use and no attempt should be made to
modify their values.
The holding register parameters may be viewed or changed using the Modbus Protocol. Each parameter is held
in two consecutive 4X registers. Modbus Protocol Function Code 03 is used to read the parameter and Function
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