Technical data

4.4.1 Structure and Functions of the Bus Terminal
Bus terminals connect a CP 5430 TF/CP 5431 FMS, CP 5412 or a CP
5410 to the SINEC L2 bus. As the end terminal, they also function as the
terminator of the bus segment (refer to Chapter 2).
4.4.2 Example of Transmission with RS 485 Bus Terminals
The RS 485 bus terminal connects devices with a SINEC L2 interface and
which use the RS 485 transmission technique to the SINEC L2 bus. If the
bus terminal is the last station on the SINEC L2 bus, a terminating resistor
can be switched in (switch setting "bus terminated"). These bus terminals
are suitable for all data rates.
One version of the RS 485 bus terminal has a PG/OP interface (see Fig.
4.17). This bus terminal allows the connection of PGs and OPs to the bus
without additional wiring.
.
...
......
PG/OP
interface
Small device
Fig. 4.17 Bus Terminal with PG/OP Interface
B8976060/02 Technical Description and Installation of the CP 5430 TF/CP 5431 FMS
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