CHAPTER 13 RS-485 COMMUNICATIONS
13-32
Modbus RTU Communications
13
13.1.4 Sample Wiring with Host Controller
Operation display (host controller)
MONITOUCH
(
MJ1/MJ2
)
Smart
(
CN3A
)
Signal name Pin.NO Pin.NO
Signal name
-RD/-SD
2
8
P5
+RD/+SD 1
7
M5 (0 V)
SG 5
6
*TXD
5 RXD
4 *RXD
3 TXD
2 M5 (0 V)
FG
Shell
1 P5
・Connect between Smart and Smart with a commercial LAN cable (straight).
RJ45 connector
In case of using Fuji’s MONITOUCH
No terminal
resistor is
needed.