FX1N Series Programmable Controllers Diagnostics 7.
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7.8 Error Codes
D8062
Check the programmer/PC
connections
No error0000
Parity, overrun or framing error6201
Communication character error6202
Communication data sum check error
Data format error
Command error
6203
6204
6205
D8063
Check both power and
communications connections
No error0000
Parity/overrun/framing error6301
Character error6302
Data sum check error6303
Data format error6304
Command error6305
Watchdog timer error6306