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1 pin assignments – Siemens Simatic S7-400 User Manual

Page 520

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Interface Submodules

13-24

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

13.6.1

Pin Assignments

X1 Socket

There is a 25-pin sub D socket connector on the frontside of the submodule for
plugging in the connecting cable.

Figure 13-6 shows the pin assignments of the submodule.

13

5M

12

5L+

11

DO0

10

DO1

9

DO2

8

DO3

7

6M

6

6L+

5

DO4

4

DO5

3

DO6

2

DO7

1

NC

DI7

25

DI6

24

4M

23

DI5

22

DI4

21

3M

20

DI3

19

DI2

18

2M

17

DI1

16

DI0

15

1M

14

Figure 13-6

X1 Socket Assignments, IF 961-DIO (25-Pin Sub D Connector)

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