Mitsubishi Electric FX3U-232-BD User Manual page 588

FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (RS/RS2 Instruction)
• FX -485-BD-RJ
3G
Communication equipment
operating in accordance
with RS-485/RS-422
Distributor (BMJ-8)
SDA
5
(TXD+)
4
SDB
*2
3
(TXD-)
6
RDA
(RXD+)
1
RDB
*2 2
(RXD-)
Terminal
7
LINK
resistor
8
SG
330Ω
×2
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
F-38
5 4 3 6 1 2 7 8
Class-D
grounding
*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
grounding
*1
5 4 3 6 1 2 7 8
FX -485-BD-RJ
3G
(Terminal resistor selector switch: Open)
-485-BD-RJ, wire the ground wire only to
3G
Model name
4 Wiring
4.3 Connection Diagram
FX -485-BD-RJ
3G
5 5 RDA
4 4 RDB
3 3 SDA
6 6 SDB
1 1 SG
Terminal
2 2
resistor
7 7
Terminal
*2
8 8 resistor
Connector metal frame
*1
Class-D
grounding
*1
Class-D
grounding (Terminal resistor
selector switch:
*2
330Ω)
-485-BD-RJ terminal
3G
Manufacturer
HIROSE ELECTRIC CO., LTD.
HACHIKO ELECTRIC CO., LTD.