Mitsubishi Electric FX3U-232-BD User Manual page 278

FX Series PLC User's Manual - Data Communication Edition
Computer Link
• FX -485-BD-RJ
3G
Communication
equipment operating
in accordance
with RS-485
Distributor (BMJ-8)
SDA
5
(TXD+)
4
Terminal SDB
3
resistor (TXD-)
110Ω
6
RDA
*2
(RXD+)
1
RDB
2
(RXD-)
7
LINK
8
SG
Class-D
grounding
*1
FX
*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
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
resistor selector switch accordingly.
Prepare the following devices if necessary.
Product name
RJ45 connector
Distributor
D-36
5 4 3 6 1 2 7 8
*1
5 4 3 6 1 2 7 8
-485-BD-RJ
3G
(Terminal resistor selector switch: Open)
TM11AP-88P
BMJ-8
BMJ-8-28N (No internal connection of the No. 2 and 8 pin)
(Do not use a plug with terminal resistor)
Distributor (BMJ-8)
5 5
4 4
3 3
6 6
1 1
2 2
7 7
8 8
5 4 3 6 1 2 7 8
Class-D
Class-D
grounding
grounding
*1
5 4 3 6 1 2 7 8
FX -485-BD-RJ
3G
(Terminal resistor selector switch: Open)
3G
Model name
4.5 Connection Diagram for RS-485 and RS-422
5
4
3
6
1
2
7
8
*1
Class-D
grounding
*1
Class-D
grounding (Terminal resistor
-485-BD-RJ, wire the ground wire only to
-485-BD-RJ terminal
3G
Manufacturer
HIROSE ELECTRIC CO., LTD.
HACHIKO ELECTRIC CO., LTD.
4 Wiring
FX -485-BD-RJ
3G
5 RDA
4 RDB
3 SDA
6 SDB
1 SG
2
Terminal
7
resistor
8
*2
Connector metal frame
selector switch:
*2
110Ω)