参数资料
型号: 71M6543F-IGTR/F
厂商: Maxim Integrated
文件页数: 122/154页
文件大小: 0K
描述: IC ENERGY METER 64K FLSH 100LQFP
标准包装: 1,000
系列: *
71M6543F/71M6543G Data Sheet
Table 79: CE Transfer Variables (with CTs)
LSB W = 1.0856*10
VMAX IMAX Wh.
LSB W = 1.0856*10
VMAX IMAX VARh.
CE
Address
0x84
0x85
0x86
0x87
0x88
0x89
0x8A
0x8B
Name
WSUM_X
W0SUM_X
W1SUM_X
W2SUM_X
VARSUM_X
VAR0SUM_X
VAR1SUM_X
VAR2SUM_X
Description
The signed sum: W0SUM_X+W1SUM_X+W2SUM_X .
The sum of Wh samples from each wattmeter
element.
-12
The signed sum:
VAR0SUM_X+VAR1SUM_X+VAR2SUM_X.
The sum of VARh samples from each wattmeter
element.
-12
Configuration
Figure 32 (page 87 )
WSUM_X and VARSUM_X are the signed sum of Phase-A, Phase-B and Phase-C Wh or VARh values
according to the metering equation specified in the control field EQU[2:0] (I/O RAM 0x2106[7:5]) .
WnSUM_X is the Wh value accumulated for phase n in the last accumulation interval and can be computed
based on the specified LSB value.
For example, with VMAX = 600 V and IMAX = 208 A, the LSB for WnSUM_X is 0.135 μWh.
5.3.8.1 Instantaneous Energy Measurement Variables
InSQSUM_X and VnSQSUM are the squared current and voltage samples acquired during the last accumulation
interval. INSQSUM_X can be used for computing the neutral current.
Table 80: CE Energy Measurement Variables (with Shunt s)
* IMAX A h ( PRE_E =0)
LSB I = 9.9045*10
* IMAX A h ( PRE_E =1)
LSB I = 6.1903125*10
CE
Address
0x8C
0x8D
Name
I0SQSUM_X
I1SQSUM_X
Neutral Current:
Description
-13 2 2
-14 2 2
Configuration
* (IMAX ) A h
0x8E
0x8F
I2SQSUM_X
I3SQSUM_X
LSB I = 6.3968*10
-13
2 2
Figure 31 (page 86 )
0x90
V0SQSUM_X
LSB V = 9.4045*10 *VMAX V h
0x91
0x92
V1SQSUM_X
V2SQSUM_X
-13 2 2
Table 81: CE Energy Measurement Variables (with CTs)
CE
Address
0x8C
Name
I0SQSUM_X
Description
Configuration
LSB I = 1.0856*10
* (IMAX ) A h
0x8D
0x8E
0x8F
I1SQSUM_X
I2SQSUM_X
I3SQSUM_X
-12
2 2
Figure 32 (page 87 )
0x90
V0SQSUM_X
* VMAX V h
0x91
V1SQSUM_X
LSB V = 1.0856*10
-12
2 2
0x92
122
V2SQSUM_X
v2
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