Sinec L1 Submodule - Siemens S5-135U/155U System Manual

CPUs, Memory Cards, Memory Submodules, Interface Submodules
5.11.6

SINEC 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 ...
SINEC L1 submodule
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:
Figure 5-28
Data Transmission Data transmission via the SINEC L1 interface always takes place at
Rate 9600 bps.
5-118
For Use With ...
CPU 928B, from Version 6ES5 928-3UB12
CPU 948
+
Receiver
–
–
Transmitter
+
CPU with
SINEC L1
Submodule
Current Direction Arrows
SINEC L1 Submodule: Loop Current Direction
+
–
–
Transmitter
+
–
+
+
Receiver
–
Partner
System Manual
C79000-G8576-C199-06