Siemens Simatic S7-400 - Manual (Page 348)

Analog Modules
5-132
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Terminal Assignment Diagram of the SM 431; AI 8 16 Bit
R0
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
M0+
M0+
M0–
INTF
EXTF
Word 0
Word 2
Word 4
Word 6
Word 1
Word 3
Word 5
Word 7
V
A
V
A
Tr
Tr
R1
M1+
M1+
M1–
R2
M2+
M2+
M2–
R3
M3+
M3+
M3–
R4
M4+
M4+
M4–
R5
M5+
M5+
M5–
R6
M6+
M6+
M6–
R7
M7+
M7+
M7–
Thermocouples
Voltage measurement
Current measurement
0
1
2
3
4
5
6
7
R0
M0+
M0+
M0–
A
A
V
V
Tr
Tr
R1
M1+
M1+
M1–
R2
M2+
M2+
M2–
R3
M3+
M3+
M3–
R4
M4+
M4+
M4–
R5
M5+
M5+
M5–
R6
M6+
M6+
M6–
R7
M7+
M7+
M7–
29
30
31
32
33
34
35
36
37
39
40
41
42
43
44
45
46
47
48
38
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Optional connector
(screw-type)
Connector with
temperature reference
6ES7431-7KF00-6AA0 6ES7492-1AL00-0AA0
Figure 5-42 Terminal Assignment Diagram SM 431; AI 8 x 16 Bit