D-35
FX Series PLC User's Manual - Data Communication Edition
Computer Link
4 Wiring
4.5 Connection Diagram for RS-485 and RS-422
A
Comm
on I
te
ms
B
N:
N N
etwo
rk
C
Paral
le
l Li
nk
D
Com
puter Li
nk
E
In
verter
C
omm
uni
cation
F
N
on-Proto
col
C
ommunicati
on
(R
S/RS
2 Instru
ction
)
G
No
n-
Protoc
ol
Co
mmuni
ca
tion
(FX
2N
-2
32IF)
H
Programm
ing
Comm
uni
cation
I
Re
mo
te
Ma
intenance
Apx.A
D
isco
nti
nued
models
4.5
Connection Diagram for RS-485 and RS-422
4.5.1
One-pair wiring
*1.
Make sure to perform Class-D grounding on the shield of a twisted pair cable connected to
the FX
2N
-485-BD, FX
1N
-485-BD, FX
3G
-485-BD, FX
3U
-485-BD, FX
2NC
-485ADP or
FX
3U
-485ADP(-MB).
*2.
Make sure to connect the
terminal to the
(grounding) terminal in the PLC requiring
Class-D grounding.
If the grounding terminal is not provided in the PLC, perform Class-D grounding directly.
*3.
Make sure to provide a terminal resistor at the end of each line.
• The FX
3U
-485-BD, FX
3G
-485-BD and FX
3U
-485ADP(-MB) have a built-in terminal resistor.
Set the terminal resistor selector switch accordingly
• The FX
0N
-485ADP, FX
2NC
-485ADP, FX
2N
-485-BD and FX
1N
-485-BD are supplied together with
terminal resistors.
Terminal
resistor:
110
Class-D grounding
(resistance: 100
or less)
*1
Class-D grounding
(resistance: 100
or less)
*1
FX
2NC
-485ADP
SG
SG
FX
0N
-485ADP
LINK
SG
FG
*2
Terminal
resistor:
110
SDA
(TXD+)
SDB
(TXD-)
RDA
(RXD+)
RDB
(RXD-)
SDA
(TXD+)
SDB
(TXD-)
RDA
(RXD+)
RDB
(RXD-)
SDA
(TXD+)
SDB
(TXD-)
RDA
(RXD+)
RDB
(RXD-)
SDA
(TXD+)
SDB
(TXD-)
RDA
(RXD+)
RDB
(RXD-)
LINK
SG
*3
*3
Communication
equipment operating
in accordance with
RS-485
FX
3U
-485-BD
FX
3G
-485-BD
FX
2N
-485-BD
FX
1N
-485-BD
FX
3U
-485ADP(-MB)
FG
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 ...
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