
Programmable Field Bus Controller 750-833 • 53
Hardware
WAGO-I/O-SYSTEM 750
Bus System
3.2.3 Field Bus Connection
The PROFIBUS interface is designed as a D-Sub connection in accordance
with the US Standard EIA RS 485 for cable linked data transmission.
Fig. 3.2.3-3: Bus connection, D-Sub female connector g012102x
Pin Signal Description
3 RxD(TxD)-P Transmit (receive) signal
4 RTS Ready to send
5 GND Supply ground
6 Vcc Supply voltage
8 RxD(TxD)-N Transmit (receive) signal
The galvanic isolation between the field bus system and the electronics is
achieved by means of DC/DC converter and optocoupler.
The connection point is mechanically lowered permitting fitting in an 80 mm
high switch box once connected.
Comentários a estes Manuais