WAGO-I/O-SYSTEM 750
Device Description 35
750-8207 PFC200 CS 2ETH RS 3G
Manual
Draft version 1.2.1 from 2017-09-13, valid from FW Version 02.06.20(09)
Kommuni kati onsanschluss
3.3.6
RS-232/RS-485 – X3 Communication Connection
Figure 8: RS-232/RS-485 – X3 Communication Connection
Table 9: Legend for Figure “RS-232/RS-485 – X3 Communication Connection”
Contact
RS-232
RS-485
Signal
Description
Signal
Description
1
NC
Not assigned
NC
Not assigned
2
RxD
Receive Data
NC
Not assigned
3
TxD
Transmit Data
RxD/TxD-P Receive/transmit data
+
4
NC
Not assigned
NC
Not assigned
5
FB_GND
Ground
FB_GND
Ground
6
NC
Not assigned
FB_5V
Power Supply
7
RTS
Request to send NC
Not assigned
8
CTS
Clear to send
RxD/TxD-N Receive/transmit data
−
9
NC
Not assigned
NC
Not assigned
Enclosure Shield
Shielding
Shield
Shielding
Incorrect parameterization can damage the communication partners!
The voltage levels are
−
12 V and +12 V for RS-232, and
−
5 V and +5 V for
RS-485.
If the controller interfaces differ from those of the communication partners
(RS-232 <> RS-485 or RS-485 <> RS-232), this may damage the interface of the
communication partner.
Therefore, always ensure that the controller interface matches those of its
communication partners when configuring these items!
DC/DC converters and optocouplers in the fieldbus interface electrically isolate
the fieldbus system and the electronics.