Error Code List - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

8.5

Error Code List

When an FX5-OPC detects an error during its operation, the module stores the error code in 'latest error code' (Un\G29) of the
buffer memory.
The error details and cause can be identified by checking the error code.
An error code can be checked by either of the following methods:
• Module diagnostics of GX Works3 (Page 77 Module diagnostics)
• 'Latest error code' (Un\G29) in the buffer memory (Page 91 Latest error code (Un\G29))
Error code list
The following table lists details of errors which can occur in an FX5-OPC:
Error code
1080H
1810H
1900H
1D00H
1D02H to 1D03H
1D05H to 1D06H
1D07H to 1D08H
1E00H
1E01H
1E02H
1E03H
1E04H
1E05H
1E06H
8 TROUBLESHOOTING
82
8.5 Error Code List
Error name Error description
Flash ROM write count error Exceeded the maximum number of write
operations allowed for the external flash
ROM.
Failed to write IP address Failed to write IP address to flash memory.
Hardware error Flash ROM memory test has failed during
initialization.
Parameter error General parameter error.
Parameter error Address space parameter error.
Parameter error Security parameter error.
Parameter error Extended Parameter file handling error.
CPU data access error General error of the CPU data access task.
CPU data access error Failed to read/write data from CPU due to the
internal timeout.
CPU data access error Failed to read/write data from CPU.
CPU data access error Failed to read/write data from CPU due to the
internal timeout.
CPU data access error Failed to read/write data from CPU.
OPC UA subscription FX5-OPC is overloaded and cannot process
processing overloaded subscriptions in timely manner.
Data access processing Accessing a single variable data in the PLC
overloaded takes excessive amount of time.
Corrective action
Correct operation of the module cannot be
guaranteed. Replace the module with a new one.
Try again to write the IP address with OPC UA
Configurator. If the error occurs again, contact your
local Mitsubishi representative.
Reset FX5-OPC. If the error occurs again, contact
your local Mitsubishi representative.
Write parameters to the module again and reset the
PLC. If the error occurs again, contact your local
Mitsubishi representative.
Write Address Space Parameters from GX Works3 to
the module again and reset the PLC. If the error
occurs again, contact your local Mitsubishi
representative.
Write Security Parameters from OPC UA Configurator
to the module again and reset the PLC. If the error
occurs again, contact your local Mitsubishi
representative.
Write parameters to the module again and reset the
PLC. If the error occurs again, contact your local
Mitsubishi representative.
Restart FX5-OPC. If the error occurs again, contact
your local Mitsubishi representative.
Check if the error also happens when the CPU is in
STOP mode. It no, try to decrease the scan time of the
PLC program. If yes, confirm the status of the FX5-
CPU. If the error occurs again although there are no
errors in the CPU, contact your local Mitsubishi
representative.
Write parameters to the module again and reset the
PLC. If the error occurs again, contact your local
Mitsubishi representative.
Check if the error also happens when the CPU is in
STOP mode. It no, try to decrease the scan time of the
PLC program. If yes, confirm the status of the FX5-
CPU. If the error occurs again although there are no
errors in the CPU, contact your local Mitsubishi
representative.
Write parameters to the module again and reset the
PLC. If the error occurs again, contact your local
Mitsubishi representative.
Increase the Max. Age setting for variables in the
address space.
Decrease the number of sessions, subscriptions or
monitored items created by all clients.
Decrease the scan time of the PLC program.
Decrease the scan time of the PLC program.
Avoid using array data types with big number of
elements.