F-87
FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (RS/RS2 Instruction)
11 Troubleshooting
11.1 Checking FX PLC Version Applicability
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
11. Troubleshooting
This chapter explains troubleshooting and error codes.
11.1
Checking FX PLC Version Applicability
Verify that the FX PLC main unit is an applicable version in non-protocol communication.
For version applicability, refer to Section 1.3.
11.2
Checking Communication Status Based on LED Indication
Check the status of the "RD" and "SD" indicator LEDs provided in the optional equipment.
11.3
Checking Installation
1. Mounting status
If the communication equipment is not securely connected to the PLC, communication is not possible.
For mounting method, refer to the respective communication equipment manual.
2. Power supply (for FX
0N
-485ADP)
The FX
0N
-485ADP requires a driving power supply. Verify that the power supply is provided correctly.
3. Wiring
Verify that the wiring to an communication equipment is correct. If the communication equipment is wired
incorrectly, communication is not possible.
For wiring method check, refer to Chapter 4.
LED status
Operation status
RD
SD
Flashing
Flashing
Data is being sent or received.
Flashing
Off
Data is received, but is not sent.
Off
Flashing
Data is sent, but is not received
Off
Off
Data is not sent nor received.
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: ......