Siemens SIMATIC S7-400 Reference Manual page 255

Connection diagram for SM 431; AI 8 x 14 bit
Figure 5-28
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
5.21 Analog input module SM 431; AI 8 x 14 Bit (6ES7431-1KF20-0AB0)
Voltage measurement
Current measurement
1
2
3
L+
4
5
6
V
7
8
9
10
11
V
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
A
29
30
31
32
33
A
34
35
36
37
38
Tr
39
40
41
42
43
Tr
44
45
46
47
M
48
Connection diagram for SM 431; AI 8 x 14 bit
L+
M0+
CH0
Word 0
M0-
M1+
CH1
Word 2
M1-
M2+
CH2 Word 4
M2-
M3 +
CH3
Word 6
M3-
M ANA
M4+
CH4 Word 8
M4-
M5+
Word 10
CH5
M5-
M6+
CH6
Word 12
M6-
M7+
Word 14
CH7
M7-
M
Analog modules
Resistance measurement
M0+
M0-
CH0 Word 0
IC0+
IC0-
M1+
M1-
CH2 Word 4
IC1+
IC1-
M2+
M2-
CH4 Word 8
IC2+
IC2-
M3 +
M3-
Word 12
CH6
IC3 +
IC3-
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