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14 Test Operation, Adjustment, Maintenance and Troubleshooting
14.6 Judgment by Error Codes and Representation of Error Codes
216
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
PLC hardware error [M8061(D8061)]
6107
Stops
operation
System configuration error
Check the number of the connected special function blocks.
For certain special function blocks, the connectable number is
limited.
PLC/PP communication error (D8062)
0000 — No error
6201
Continues
operation
Parity, overrun or framing error
Check the cable connection between the programming panel
(PP) / programming device and the PLC. This error may occur
when a cable is disconnected and reconnected during PLC
monitoring.
6202 Communication character error
6203 Communication data sum check error
6204 Data format error
6205 Command error
Serial communication error 1 [M8063(D8063)]
0000 — No error
6301
Continues
operation
Parity, overrun or framing error
• Ethernet communication, inverter communication,
computer link and programming:
Ensure the parameters are correctly set according to their
applications.
• N:N network, parallel link, MODBUS communication, etc.:
Check programs according to applications.
• Remote maintenance:
Ensure modem power is ON and check the settings of the
AT commands.
• Wiring:
Check the communication cables for correct wiring.
6302 Communication character error
6303 Communication data sum check error
6304 Communication data format error
6305 Command error
6306 Communication time-out detected
6307 Modem initialization error
6308 N:N network parameter error
6309 N:N Network setting error
6312 Parallel link character error
6313 Parallel link sum error
6314 Parallel link format error
6320 Inverter communication error
6321 MODBUS communication error
6340 Special adapter connection error Check connection of the special adapter.
Parameter error [M8064(D8064)]
0000 — No error
6401
Stops
operation
Program sum check error
STOP the PLC, and correctly set the parameters.
6402 Memory capacity setting error
6403 Latched device area setting error
6404 Comment area setting error
6405 File register area setting error
6406
Special unit (BFM) initial value setting, positioning instruction
setting sum check error
6407
Special unit (BFM) initial value setting, positioning instruction
setting error
6409 Other setting error
6420 Special parameter sum check error
• STOP the PLC, and correctly set the special parameters.
• Set special parameters correctly, turn OFF the power, and
then turn ON the power.
6421 Special parameters setting error
• Check the contents of the special parameter error code
(D8489), confirm troubleshooting for special adapters/
special blocks, and set special parameters correctly.
• Set special parameters correctly, turn OFF the power, and
then turn ON the power.
Error
code
PLC
operation
at error
occurrence
Contents of error Action