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4. Software Interfaces
-31-
Function/Setting
Description
Diagnostic
Memory error
Reverse energy
Wrong writing
Missing phase
Accuracy @ 25
C
Current RMS Irms < 1.0%
Voltage RMS Vrms < 1.0%
Watt and Watt-hour < 1.0%
Var and Var-hour < 2.0%
4.1.2 Modbus
commands
The commands used in the Modbus register map are:
Read holding register (0x03)
Write multiple register (0x06)
4.1.3 Modbus register map #1
*NV: Non-volatile, V: Volatile, S: Signed, U: Unsigned, R: Read, W: Write
Modbus
Register
Description
Type/
Length
Storage
Unit after
Scaling
Access
0
Active Energy Consumption, Phase 1 MSW
(valid)
U32 NV
Wh
R
1
Active Energy Consumption, Phase 1 LSW
U32 NV
Wh
R
2
Active Energy Consumption, Phase 2 MSW
U32 NV
Wh
R
3
Active Energy Consumption, Phase 2 LSW
U32 NV
Wh
R
4
Active Energy Consumption, Phase 3 MSW
U32 NV
Wh
R
5
Active Energy Consumption, Phase 3 LSW
U32 NV
Wh
R
6
Active Energy Consumption, Phase Sum
MSW
U32 NV
Wh
R
7
Active Energy Consumption, Phase Sum
LSW
U32 NV
Wh
R
8
Reactive Energy Consumption, Phase 1
MSW(무효)
U32 NV VARh R
9
Reactive Energy Consumption, Phase 1
LSW
U32 NV VARh R