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Siemens Simatic S7-400 User Manual

Page 210

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Digital Modules

4-88

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

Terminal Assignment Diagram of the SM 422; DO 16

20-120 VAC/2 A

1
2
3
4

0

Byte 0

5
6

1

7
8

2

9

10

3

11

13

1L1

12

14
15

4

16
17

5

18
19

6

20
21

7

22

24

23

26
27
28
29
30
31
32
33
34

36

35

38
39
40
41
42
43
44
45
46

48

47

25

37

0

1

2

3

4

5

6

7

2L1

3L1

4L1

5L1

6L1

7L1

8L1

9L1

10L1

11L1

12L1

13L1

14L1

15L1

16L1

Byte 1

INTF
EXTF

t

Process

Module

Data register and bus control

LED control

Figure 4-21 Terminal Assignment Diagram of the SM 422; DO 16

20-120 VAC/2 A

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