Trouble Shooting for each error code  Errors starting with [02:**] Host Communication Error [02:**] 02 → Fixed Value **→ See the table below Error Code Description Causes F7 Connection Error The connected wiring is incorrect. F8 Communication Information Address is incorrect. LT's Network Information Address varies depending on a LT. -> Make all GP network addresses the same. F9 Station numbers overlap. LT's station numbers overlap. LT power supply is turned OFF during communication FD Receive Data Error Communication cable took out and inserted during LT power supply is turned ON. Power supply is turned OFF during communication. Noise influence (when an error occurs sometimes) FE Not responding PLC power supply is OFF. LT's system setting(I/O setting, Object external equipment) is incorrect. The procedure has mistaken for the external communication equipment and LT's power supply ON. The connected wiring is incorrect. FF Connection Error The connected cable diagram is incorrect.

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