| 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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