Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 428

8 TROUBLESHOOTING
Error No.
F800 Mode switch setting error
F801 Network number setting error
F802 Group number error
F803 Station number setting error
F804 DIP switch setting error
F805 System error
F806 System error
F808 System error
F80A System error
F80B System error
F80C System error
F80D System error
F80E System error
F80F System error
F811 System error
F812 System error
F813 Parameter data error (parameter)
F814 Parameter data error (code)
F820 Link parameter error
F821 Station-specific parameter error
1: For the QJ71NT11B, check the station number/mode setting switch.
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Table 8.1 Error code list (continued)
Description of error
Confirm the setting of the mode switch.
If the error reoccurs after resetting, the hardware of the network module is
faulty.
Please consult your local Mitsubishi representative.
Create new network parameters and perform Write to PLC.
If the error reoccurs, the hardware of the CPU or network module is faulty.
Please consult your local Mitsubishi representative.
Check if the station number is within a range of 1 to 64.
If the error reoccurs even if the station number is set between 1 and 64, the
hardware of the network module is faulty.
Please consult your local Mitsubishi representative.
Create new network parameters and perform Write to PLC.
If the error reoccurs, the hardware of the CPU or network module is faulty.
Please consult your local Mitsubishi representative.
The hardware of the network module is faulty.
Please consult your local Mitsubishi representative.
The hardware of the CPU or network module is faulty.
Please consult your local Mitsubishi representative.
The hardware of the network module is faulty.
Please consult your local Mitsubishi representative.
Replace the network module of the control or normal station with the one
compatible with the MELSECNET/H Extended mode.
Change the network type of the normal station to that of the control station.
Create new network parameters and perform Write to PLC.
If the error reoccurs, the hardware of the CPU or network module is faulty.
Please consult your local Mitsubishi representative.
Create new network parameters and perform Write to PLC.
If the error reoccurs, the hardware of the CPU or network module is faulty.
Please consult your local Mitsubishi representative.
Replace the network module of the normal station with the one compatible with
the MELSECNET/H Extended mode.
Change the network type of the normal station to that of the control station.
Create new network parameters and perform Write to PLC.
When the MELSECNET/H twisted bus system is configured, check that the
MNET/10 mode is not selected as the network type and either of the forward
loop and reverse loop test is not selected as the mode.
If any of above mentioned parameter is set, create new network parameters
and perform Write to PLC.
If the error reoccurs, the hardware of the CPU or network module is faulty.
Please consult your local Mitsubishi representative.
Review station-specific parameters.
Set common parameters
of the host station.
If no station-specific parameters are set, the hardware of the CPU or network
module is faulty.
Please consult your local Mitsubishi representative.
Corrective measure
1
station-specific parameters for the sending range
MELSEC-Q
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