Wago 750-333 PROFIBUS DP/V1 FIELD BUSCOUPLER 12 MBaud 750-333 Datenbogen
Produktcode
750-333
24 •
Fieldbus coupler / controller
Fieldbus coupler 750-333
Fieldbus coupler 750-333
D R A F T
WAGO-I/O-SYSTEM 750
2001-02-27
PROFIBUS
3.1.2.3 Fieldbus
connection
The PROFIBUS interface is designed as a Sub-D connection in accordance
with the US Standard EIA RS 485 for cable linked data transmission.
with the US Standard EIA RS 485 for cable linked data transmission.
1
6
7
8
9
2
3
4
5
9-pol. D-Sub-Buchse
DGND
RTS
RxD/TxD-P
RTS
RxD/TxD-P
RxD/TxD-N
VP
Fig. 3-3: Bus connection, D-SUB
g012102d
Pin
Signal
Description
3
RxD(TxD)-P
Transmit (receive) signal
4
RTS
Ready To Send
5
GND
Supply ground (earth)
6
Vcc
Voltage supply
8
RxD(TxD) N
Transmit (receive) signal
The electrical isolation between the fieldbus system and the electronics is
achieved by means of DC/DC converters and optocouplers in the fieldbus in-
terface.
achieved by means of DC/DC converters and optocouplers in the fieldbus in-
terface.
The connection point is mechanically lowered permitting fitting in an 80 mm
high switch box once connected.
high switch box once connected.