Mitsubishi FX3U-USB-BD User Manual page 193

FX Series PLC User's Manual - Data Communication Edition
Parallel Link
4.3.2 For FX , FX
1S 1N
1. In the case of one-pair wiring
FX -485ADP
2NC
SDA
Terminal
SDB
resistor
110 Ω
RDA
RDB
SG
*1 Make sure to perform Class-D grounding to the shield of a twisted pair cable connected to the FX
FX -485-ADP.
2NC
*2 Make sure to connect the
If the grounding terminal is not provided in the PLC, perform Class-D grounding directly.
2. In the case of two-pair wiring
FX -485ADP
2NC
SDA
SDB
RDA
RDB
Terminal
resistor
330 Ω
× 2
SG
*1 Make sure to perform Class-D grounding to the shield of a twisted pair cable connected to the FX
FX -485-ADP.
2NC
*2 Make sure to connect the
If the grounding terminal is not provided in the PLC, perform Class-D grounding directly.
, FX , FX and FX
1NC 2N
FX -485-BD
2N
FX -485-BD FX -485ADP
1N 0N
SDA SDA
SDB SDB
RDA RDA
RDB RDB
LINK
SG
SG
FG
FG terminal to the
FX -485-BD
2N
FX -485-BD FX -485ADP
1N 0N
SDA SDA
SDB SDB
RDA RDA
RDB RDB
LINK
SG
SG
FG
FG terminal to the
PLCs
2NC
FX -485ADP
0N
SDA
SDB
RDA
RDB
LINK
SG
FG *2
Class-D grounding (resistance: 100 Ω or less)
(grounding) terminal in the PLC requiring Class-D grounding.
FX -485ADP
0N
SDA
SDB
RDA
RDB
LINK
SG
*2
FG
Class-D grounding (resistance: 100 Ω or less)
(grounding) terminal in the PLC requiring Class-D grounding.
4 Wiring
4.3 Connection Diagram
FX -485-BD
2N
FX -485-BD FX -485ADP
1N 2NC
SDA SDA
Terminal
SDB SDB
resistor
110 Ω
RDA RDA
RDB RDB
SG
SG
*1
-485-BD, FX -485-BD or
2N 1N
FX -485-BD
2N
FX -485-BD FX -485ADP
1N 2NC
SDA SDA
SDB SDB
RDA RDA
RDB RDB
Terminal
resistor
330 Ω
SG
× 2
SG
*1
-485-BD, FX -485-BD or
2N 1N
C-29
A
B
C
D
E
F
G
H
I
Apx.