I-58
FX Series PLC User's Manual - Data Communication Edition
Remote Maintenance
8 Troubleshooting
8.7 Checking Programming Tool Setting
8.7 Checking Programming Tool Setting
Verify that the setting contents in the programming tool are correct.
1. Checking the telephone number
Verify that the telephone number of the connection destination is set correctly.
2. Checking the AT command setting
Verify that the AT command is set correctly for the registered modem.
3. Checking the communication port
Verify that the communication port connected to the modem is set correctly.
For the programming tool setting, refer to Chapter 6.
8.8 Checking Absence/Presence of Errors
In FX3S, FX3G, FX3GC, FX3U and FX3UC PLCs, an error occurs when modem initialization is not possible.
Verify that an error has not occurred.
1. Checking M8063
When a communication error occurs, M8063 turns ON and D8063 stores the corresponding error code.
2. Checking the error code
D8063 stores one of the following error codes:
When modem initialization is disabled, D8063 stores the error code 6307.
If D8063 stores any error code shown above, check the following items:
• Wiring
• Modem specifications
Error code Contents of error
D8063
6301 Parity error, overrun error or framing error
6302 Defective communication character
6303 Communication data sum mismatch
6304 Defective data format
6305 Defective command
6306 Monitoring timeout
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
6330 Memory access error
6340 Special adapter connection error
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