FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
CE
Address
Name
Default
Description
0.02229⋅TANΦ
0.1487 − 0.0131⋅TANΦ
PHADJ _ X = 220
PHADJ _ X = 220
at 60Hz
PHADJ_B
0
0x19
0.0155⋅TANΦ
0.1241− 0.009695⋅TANΦ
at 50Hz
This register contains the reference point for the temperature
measurement. At calibration temperature, the value read at
TEMP_RAW_X should be written to TEMP_NOM. The CE will calculate
the chip temperature TEMP_X relative to the reference temperature.
TEMP_NOM
DEGSCALE
0
0x1F
0x39
The scale factor for the temperature calculation. It is not necessary
to use values other than the default value.
9174
4.3.10 Other CE Parameters
Table 66 shows the CE parameters used for suppression of noise due to scaling and truncation effects.
The table also includes the parameter which indicates the CE Code version.
Table 66: CE Parameters for Noise Suppression and Code Version
CE Ad-
Name
Default
Description
dress
This is the scale factor for the VAR calculation. No value
other than the default value should be applied.
KVAR
0x22
6448
These parameters are added to the Watt calculation for
element 0 and 1 to compensate for input noise and truncation.
QUANT_A
QUANT_B
0x26
0x27
0x2A
0x2B
0
0
0
0
LSB = (VMAX*IMAX / In_8) *7.4162*10-10 W
These parameters are added to the VAR calculation for
element A and B to compensate for input noise and truncation.
QUANT_VARA
QUANT_VARB
LSB = (VMAX*IMAX / In_8) * 7.4162*10-10 W
These parameters are added to compensate for input noise
and truncation in their respective channels in the squaring
calculations for I2 and V2.
QUANT_IA
QUANT_IB
0x2E
0x2F
0
0
LSB = VMAX2*7.4162*10-10 V2 and
LSB = (IMAX2/In_82)*7.4162*10-10 A2
Text strings holding the CE version information as supplied
by the CE data associated with the CE code. For example,
the words 0x63653331 and 0x61303463 form the text string
“ce31a04c”.
0x35
0x36
0x37
0x63653331
0x61303463
0x00000000
These locations are overwritten in operation.
4.3.11 CE Flow Diagrams
Figure 41 through Figure 43 show the data flow through the CE in simplified form. Functions not shown
include delay compensation, sample interpolation, scaling and processing of meter equations.
v1.3
© 2005-2010 TERIDIAN Semiconductor Corporation
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