90E36 Datasheet, PDF (64/79 Pages) Integrated Device Technology – Poly-Phase High-Performance Wide-Span Energy Metering IC

90E36
POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Table-11 Power and Power Factor Register
Register
Address
Register Name
Read/Write
Type
Functional Description
Comment
C1H
PmeanALSB
C2H
PmeanBLSB
C3H
PmeanCLSB
R
Lower word of Phase A Active Power
R
Lower word of Phase B Active Power
R
Lower word of Phase C Active Power
Lower word of Active Powers.
1LLSB corresponds to 1/256 Watt
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
C6H
QmeanBLSB
C7H
QmeanCLSB
R
Lower word of Phase A Reactive Power
R
Lower word of Phase B Reactive Power
R
Lower word of Phase C Reactive Power
Lower word of ReActive Powers.
1LLSB corresponds to 1/256 var
C8H
SAmeanTLSB
R
Lower word of Total (Arithmetic Sum) apparent
power
Lower word of Apparent Powers.
1LLSB corresponds to 4/256 VA
C9H
SmeanALSB
CAH
SmeanBLSB
CBH
SmeanCLSB
R
Lower word of phase A apparent power
R
Lower word of phase B apparent power
R
Lower word of phase C apparent power
Lower word of Apparent Powers.
1LLSB corresponds to 1/256 VA
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:
b15 b14 b13 b12 b11 b10 b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
(LLSB)
6.6.2 FUNDAMENTAL/ HARMONIC POWER AND VOLTAGE/ CURRENT RMS REGISTERS
Table-12 Fundamental/ Harmonic Power and Voltage/ Current RMS Registers
Register
Address
D0H
D1H
D2H
D3H
D4H
D5H
D6H
D7H
D8H
D9H
DAH
DBH
DCH
DDH
DEH
DFH
E0H
Register Name
PmeanTF
PmeanAF
PmeanBF
PmeanCF
PmeanTH
PmeanAH
PmeanBH
PmeanCH
IrmsN1
UrmsA
UrmsB
UrmsC
IrmsN0
IrmsA
IrmsB
IrmsC
PmeanTFLSB
Read/Write
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Functional Description
Total active fundamental power
phase A active fundamental power
phase B active fundamental power
phase C active fundamental power
Total active harmonic power
phase A active harmonic power
phase B active harmonic power
phase C active harmonic power
N Line Sampled current RMS
phase A voltage RMS
phase B voltage RMS
phase C voltage RMS
N Line calculated current RMS
phase A current RMS
phase B current RMS
phase C current RMS
Lower word of Total active fundamental Power
Comment
Complement, 16-bit integer with unit of 4Watt.
1LSB corresponds to 4Watt
Complement, 16-bit integer with unit of 1Watt.
1LSB corresponds to 1Watt
Complement, 16-bit integer with unit of 4Watt.
1LSB corresponds to 4Watt
Complement, 16-bit integer with unit of 1Watt.
1LSB corresponds to 1Watt
unsigned 16-bit integer with unit of 0.001A
1LSB corresponds to 0.001 A
1LSB corresponds to 0.01 V
unsigned 16-bit integer with unit of 0.001A
1LSB corresponds to 0.001 A
Lower word of D0H register.
1LLSB^* corresponds to 4/256 Watt
Register
64
December 9, 2011