E-134
FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
11 Troubleshooting
11.1 Checking FX PLC Version Applicability (FX2N and FX2NC Series)
11. Troubleshooting
This chapter explains troubleshooting and error codes.
11.1
Checking FX PLC Version Applicability (FX
2N
and FX
2NC
Series)
Verify that the FX PLC main unit is an applicable version for inverter communication.
For version applicability, refer to Section 1.3.
11.2
Checking Communication Status Based on LED Indication
Check the status of the "RD(RXD)" and "SD(TXD)" 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 all communication equipment is correct. If the communication equipment is wired
incorrectly, communication is not possible.
For wiring method check, refer to Chapter 4.
11.4
Checking Sequence Program
1. Communication setting in the sequence program
Verify that N:N Network (D8173 to D8180) and parallel link (M8070 and M8071) are not set.
After changing any setting, make sure to turn OFF the PLC power, and then turn the power ON again.
2. Communication setting using parameters
Verify that the communication settings using parameters are correct. If the contents of the parameters do not
agree, communication will not function correctly.
After changing any parameters, make sure to turn OFF the PLC power, and then turn the power ON again.
3. Ethernet port setting (in FX
3S
, FX
3G
, FX
3GC
, FX
3U
and FX
3UC
PLCs)
Verify that the same channel is not used in the Ethernet port setting. Do not set the channel used in inverter
communication. After changing the setting, make sure to reboot the PLC's power.
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: ......