Datasheet

STPMC1 Theory of operation
Doc ID 15728 Rev 7 57/77
Address
Name
N. of
bits
Description
IMPORTANT: The decimal value indicated in this column represents
the value of the configuration bits with MSB in bold.
7-BIT
Binary
DEC
0010101 21 PM 1
Precision meter:
- PM
=0: Class 1,
- PM
=1: Class 0.1
0010110 22 FR1 1
Selection of measurement clock value:
- FR1
=0: f
MCLK
=8.192 MHz,
- FR1
=1: f
MCLK
=9.8304 MHz
0010111
0011000
0011001
0011010
0011011
0011100
0011101
0011110
0011111
23
24
25
26
27
28
29
30
31
CCA 9
- PM
=0, TCS=0: Mutual current influence compensation data A
SYS
= 0, 1, 2, 3 SYS = 4, 5, 6, 7
CCA
[8] = sign α CCA[8] = sign α
CCA
[7] = sign β CCA[7..0] = α
CCA
[6] = sign γ
CCA
[5..0] = α
- PM
=1: Calibration extenders for voltage and phase
CCA
[8..7] = CvT
CCA
[6..5] = CvS
CCA
[4..3] = CvR
CCA
[1..0] = CpC
0100000
0100001
0100010
0100011
0100100
0100101
0100110
0100111
32
33
34
35
36
37
38
39
CIN 8 Calibration data for current channel of neutral conductor
0101000
0101001
0101010
0101011
0101100
0101101
0101110
0101111
40
41
42
43
44
45
46
47
CIR 8 Calibration data for current channel of phase R
0110000
0110001
0110010
0110011
0110100
0110101
0110110
0110111
48
49
50
51
52
53
54
55
CIS 8 Calibration data for current channel of phase S
0111000
0111001
0111010
0111011
0111100
0111101
0111110
0111111
56
57
58
59
60
61
62
63
CIT 8 Calibration data for current channel of phase T
Table 33. Configuration bits map (continued)