X20 system modules • Analog input modules • X20AP31x1
X20 system User's Manual 3.10
337
4.3.14.10.9 Analog power register
4.3.14.10.9.1 Vector sum of the total apparent power LSW
Name:
SVmeanTLSB
The value in the register equals a fourth of the actual power.
Data type
Value
Information
INT
-32,767 to 32,767
Resolution of units/LSB equals 4/65536 VA
This value must be multiplied by 4 by the application. Calculation formula for actual power:
Actual vector sum of the total apparent power LSW = register value * 4 (complex sum)
4.3.14.10.9.2 Vector sum of the total apparent power MSW
Name:
SVmeanT
The value in the register equals a fourth of the actual power. The calculation is made in accordance with IEEE 1459.
Data type
Value
Information
INT
0 to 32767
Resolution 4 VA
This value must be multiplied by 4 by the application. Calculation formula for actual power:
Actual vector sum of the total apparent power MSW = register value * 4 (complex sum)
4.3.14.10.9.3 Total active power
Name:
PmeanT
The value in the register equals a fourth of the actual power. The calculation can be performed in either absolute
or arithmetic mode (see register "MeteringMode" <Bit 3>). Each phase can be separately enabled for the power
calculation (see register "MeteringMode" <Bits 0, 1 and 2>).
Data type
Value
Information
INT
-32,767 to 32,767
Resolution 4 W
This value must be multiplied by 4 by the application. Calculation formula for actual power:
Actual total active power = Register value * 4
4.3.14.10.9.4 Active power on phase A/B/C
Name:
PmeanA
PmeanB
PmeanC
Active power on the phase. Each phase can be separately enabled for the power calculation (see register "Meter-
Data type
Value
Information
INT
-32,767 to 32,767
Resolution 1 W
4.3.14.10.9.5 Total reactive power
Name:
QmeanT
The value in the register equals a fourth of the actual power. The calculation can be performed in either absolute
or arithmetic mode (see register "MeteringMode" <Bit 4>). Each phase can be separately enabled for the power
calculation (see register "MeteringMode" <Bits 0, 1 and 2>).
Data type
Value
Information
INT
-32,767 to 32,767
Resolution 4 var
This value must be multiplied by 4 by the application. Calculation formula for actual power:
Actual total reactive power = Register value * 4
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