Siemens Simatic S7-400 - Manual (Page 202)

Digital Modules
4-80
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Terminal Assignment and Block Diagram of the SM 422;
DO 8
120/230 VAC/5 A
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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
1L
1N
1
2L
0
7L
7N
7
8L
6
3L
3N
3
4L
2
5L
5N
5
6L
4 Data register and bus control
LED control
t
F100
F200
F300
F400
F500
F600
F700
F800
6N
8N
2N
4N
INFT
EXTF
Process Module
Figure 4-19 Terminal Assignment and Block Diagram of the SM 422; DO 8 120/230 VAC/5 A