Connection Diagram - Mitsubishi Electric FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Remote Maintenance
4.2

Connection Diagram

1. To connect the modem, use a cable included with the modem or cable described in the
modem manual.
Remote access
Personal computer
2. The table below shows the pin arrangement in the communication equipment operating in
accordance with RS-232C for the FX PLC.
FX
0N
25-pin D-Sub, female
13
25
14 1
*1. The FX
2NC
I-24
Cable
Modem
FX -232-BD, FX
1N
-232ADP
—
3
2
20
7
6
-232ADP does not use the CD signal.
Line
general telephone
line, etc.
Modem
-232-BD, FX -232ADP,
2N 2NC
FX -232-BD, FX -232-BD,
3G 3U
FX -232ADP(-MB)
3U
9-pin D-Sub, male
5
9
6
1
4.2 Connection Diagram
Cable
PLC
Signal
Function
name
*1
CD Receiving carrier detection
1
2 RD (RXD) Receive data input
3 SD (TXD) Send data output
4 ER (DTR) Data terminal ready
5 SG (GND) Signal ground
6 DR (DSR) Data set ready
4 Wiring