WEG PLC300 User Manual - page 24
Manual is about: Logic
of
76
Connections
4-8 | PLC300
Modem
RS232
RX
TX
GND
XC
3
ENC
A
ENC
A
ENC
B
ENC
B
ENC
Z
ENC
Z
ENC
+V*
ENC
0 V
232
TX
232
RX
232
GND
485
A
485
B
485
GND
1
7
4
10
2
8
5
11
12
13
14
3
9
6
Figure 4.8: Connecting the RS-232
Note: For further information, consult the manual for serial communication, available for
download on the website:
www.weg.net.
4.9 RS-485 INTERFACE
Insulated, multipoint serial interface intended for network communication. It can operate
as master or slave with the Modbus RTU protocol.
The S1 key allows the connection of termination resistors.
The configuration of this interface is done by the setup menu.