D-36
FX Series PLC User's Manual - Data Communication Edition
Computer Link
4 Wiring
4.5 Connection Diagram for RS-485 and RS-422
• FX
3G
-485-BD-RJ
*1.
Use shielded cables, and make sure to perform class D grounding on the shield.
When using the terminal block to connect ground of FX
3G
-485-BD-RJ, wire the ground wire only to
either one of two poles of the terminal block.
*2.
Make sure to provide a terminal resistor at the end of each line. Set the FX
3G
-485-BD-RJ terminal
resistor selector switch accordingly.
Prepare the following devices if necessary.
Product name
Model name
Manufacturer
RJ45 connector
TM11AP-88P
HIROSE ELECTRIC CO., LTD.
Distributor
BMJ-8
BMJ-8-28N (No internal connection of the No. 2 and 8 pin)
(Do not use a plug with terminal resistor)
HACHIKO ELECTRIC CO., LTD.
FX
3G
-485-BD-RJ
Distributor (BMJ-8)
(Terminal resistor selector switch: Open)
Class-D
grounding
Class-D
grounding
Class-D
grounding
*1
Class-D
grounding
*1
Terminal
resistor
110
Ω
SDA
(TXD+)
Communication
equipment operating
in accordance
with RS-485
SDB
(TXD-)
RDA
(RXD+)
RDB
(RXD-)
LINK
SG
5
4
3
6
1
2
7
8
5
4
3
6
1
2
7
8
5 4 3 6 1 2 7 8
5 4 3 6 1 2 7 8
Co
nn
ec
tor m
eta
l fra
m
e
RDA
RDB
SDA
SDB
SG
FX
3G
-485-BD-RJ
Distributor (BMJ-8)
(Terminal resistor selector switch: Open)
5
4
3
6
1
2
7
8
5
4
3
6
1
2
7
8
5 4 3 6 1 2 7 8
5 4 3 6 1 2 7 8
Co
nn
ec
tor m
eta
l fra
m
e
RDA
RDB
SDA
SDB
SG
FX
3G
-485-BD-RJ
Class-D
grounding (Terminal resistor
selector switch:
110
Ω
)
*2
5
4
3
6
1
RDA
RDB
SDA
SDB
SG
Terminal
resistor
2
7
8
Connector metal frame
*2
*1
*1
*1
*2
Summary of Contents for FX-485ADP
Page 2: ......
Page 120: ...B 2 FX Series PLC User s Manual Data Communication Edition N N Network ...
Page 188: ...C 2 FX Series PLC User s Manual Data Communication Edition Parallel Link ...
Page 244: ...D 2 FX Series PLC User s Manual Data Communication Edition Computer Link ...
Page 344: ...E 2 FX Series PLC User s Manual Data Communication Edition Inverter Communication ...
Page 700: ...H 2 FX Series PLC User s Manual Data Communication Edition Programming Communication ...
Page 752: ...I 2 FX Series PLC User s Manual Data Communication Edition Remote Maintenance ...
Page 817: ......