Wiring Of The Computer Link; One To One Configuration; Rs-232C/Rs-485 Converter - Toshiba V Series User Manual

Chapter 4 Installation and Wiring

4.8 Wiring of the computer link

4
150
Cable connection examples show as below.
• Below figure shows an example of cable connection using the RS-232C/RS-485
converter (ADP-6237B).
• Use shielded twisted-pair cable for data communication suited to RS-485 standard.
The cable shield should be connected to single -point ground.

One to one configuration

Master
computer
TXD
RXD
RTS
CTS
SG
DTR
DSR
CD
RS-232C
(max.15m)
• On the S2, removable terminal block is provided for cable connection.
• Short between RXA and TERM for termination at both the S2 and the
ADP-6237B.
• If the master has RS-485 (or RS-422) interface and the CPU is connected to the
master directly, connect termination resistor 1/2 W - 120 Ω between RXA and RXB at
the master end.

RS-232C/RS-485 converter

(ADP-6237B)
3 RXD TXA
2 TXD TXB
5 CTS RXA
4 RTS RXB
7 SG SG
6 DSR TERM
20 DTR FG
8 CD
1 FG
25-pin Terminal
connector block
model 2000 Sequence Controller S2 User's Manual -Basic Hardware-
S2
RXA
RXB
TXA
TXB
SG
TERM
RS-485
(max.1km)
Terminal
block