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Siemens S5-135U/155U User Manual

Page 238

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5-98

System Manual

C79000-G8576-C199-06

Standard cables for connecting the PG submodule in the CPU to the PG are
available from Siemens in various lengths, up to 1000 m.

Order numbers and lengths can be found in the ordering information.

Connecting cable: CPU - PG

Housing, GND

1

Shield

Housing, GND

8

24

25

9

2

+ RxD

– RxD

Receiver

10

22

+ TxD

6

12

23

–12V

Transmitter

20

6

+12V

– TxD

Transmitter

7

8

21

Receiver

–12V

+12V

17

4

3

2

+ 20 mA

+ TxD

– TxD

– 20 mA

+ 20 mA

+ RxD

– RxD

– 20 mA

K1

K2

K3

Transmission
Rate Setting

CPU SI1 or
SI2 with PG Submodule

PG 675/685 or
Adapter to PG 7xx

Figure 5-13

PG Submodule: Standard Connecting Cable

Standard
Connecting Cable
for the PB
Submodule

CPUs, Memory Cards, Memory Submodules, Interface Submodules