Siemens S5-135U/155U Sinec L1 Submodule, Sinec L1 submodule can be inserted in the following CPU

Models: S5-135U/155U

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CPUs, Memory Cards, Memory Submodules, Interface Submodules

5.11.6SINEC L1 Submodule

The SINEC L1 submodule is for use with data transmission via the

SINEC L1 bus.

Application

The SINEC L1 submodule can be inserted in the following CPU:

Interface Submodule ...

For Use With ...

SINEC L1 submodule

CPU 928B, from Version 6ES5 928-3UB12 CPU 948

Circuitry

The SINEC L1 submodule is equipped with a transmitter and a receiver for

 

20 mA current loop signals. Shown in the following figure is the circuitry for

 

the current loop signals:

+

+

 

Receiver

±

±

 

±

 

Transmitter

±

+

±

Transmitter

 

+

+

CPU with

+

SINEC L1

Receiver

Submodule

 

Current Direction Arrows

±

Partner

 

Figure 5-28 SINEC L1 Submodule: Loop Current Direction

Data Transmission

Data transmission via the SINEC L1 interface always takes place at

Rate

9600 bps.

5-118

System Manual

C79000-G8576-C199-06

Page 258
Image 258
Siemens S5-135U/155U appendix Sinec L1 Submodule, Sinec L1 submodule can be inserted in the following CPU, 9600 bps