Datasheet

90E36A POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Register 60 April 2, 2013
6.6.2 FUNDAMENTAL/ HARMONIC POWER AND VOLTAGE/ CURRENT RMS REGISTERS
Table-12 Fundamental/ Harmonic Power and Voltage/ Current RMS Registers
C1H PmeanALSB R Lower word of Phase A Active Power
Lower word of Active Powers.
1LLSB corresponds to 1/256 Watt
C2H PmeanBLSB R Lower word of Phase B Active Power
C3H PmeanCLSB R Lower word of Phase C Active Power
C4H QmeanTLSB R
Lower word of Total (all-phase-sum) Reactive
Power
Lower word of ReActive Powers.
1LLSB corresponds to 4/256 var
C5H QmeanALSB R Lower word of Phase A Reactive Power
Lower word of ReActive Powers.
1LLSB corresponds to 1/256 var
C6H QmeanBLSB R Lower word of Phase B Reactive Power
C7H QmeanCLSB R Lower word of Phase C Reactive Power
C8H SAmeanTLSB R
Lower word of Total (Arithmetic Sum) apparent
power
Lower word of Apparent Powers.
1LLSB corresponds to 4/256 VA
C9H SmeanALSB R Lower word of phase A apparent power
Lower word of Apparent Powers.
1LLSB corresponds to 1/256 VA
CAH SmeanBLSB R Lower word of phase B apparent power
CBH SmeanCLSB R Lower word of phase C apparent power
Note: All the lower 8 bits of C0H-CBH registers and E0H-EFH registers are always zero. Only the higher 8 bits of these registers are valid.
In this document, LLSB means bit 8 of the lower registers as below:
Register
Address Register Name
Read/Write
Type Functional Description Comment
D0H PmeanTF R Total active fundamental power
Complement, 16-bit integer with unit of 4Watt.
1LSB corresponds to 4Watt
D1H PmeanAF R phase A active fundamental power
Complement, 16-bit integer with unit of 1Watt.
1LSB corresponds to 1Watt
D2H PmeanBF R phase B active fundamental power
D3H PmeanCF R phase C active fundamental power
D4H PmeanTH R Total active harmonic power
Complement, 16-bit integer with unit of 4Watt.
1LSB corresponds to 4Watt
D5H PmeanAH R phase A active harmonic power
Complement, 16-bit integer with unit of 1Watt.
1LSB corresponds to 1Watt
D6H PmeanBH R phase B active harmonic power
D7H PmeanCH R phase C active harmonic power
D8H IrmsN1 R N Line Sampled current RMS
unsigned 16-bit integer with unit of 0.001A
1LSB corresponds to 0.001 A
D9H UrmsA R phase A voltage RMS
1LSB corresponds to 0.01 VDAH UrmsB R phase B voltage RMS
DBH UrmsC R phase C voltage RMS
DCH IrmsN0 R N Line calculated current RMS
unsigned 16-bit integer with unit of 0.001A
1LSB corresponds to 0.001 A
DDH IrmsA R phase A current RMS
DEH IrmsB R phase B current RMS
DFH IrmsC R phase C current RMS
E0H PmeanTFLSB R Lower word of Total active fundamental Power
Lower word of D0H register.
1LLSB
*
corresponds to 4/256 Watt
Table-11 Power and Power Factor Register
Register
Address Register Name
Read/Write
Type Functional Description Comment
b15 b14 b13 b12 b11 b10 b9
b8
(LLSB)
b7 b6 b5 b4 b3 b2 b1 b0