Mitsubishi Electric MELSEC iQ-R Series - Page 627

36 ERROR CODES
36.4 List of Error Codes
625
36
4C24H CPU module data backup/
restoration function error
• The data cannot be backed up because more
backup data than the upper limit value of the
number of backup data exists in the SD memory
card.
• Delete the backup data exceeding the upper limit value, and
execute the function again.
• Check and correct the settings of the upper limit value of the
number of backup data, and execute the function again.
4C26H CPU module data backup/
restoration function error
• The automatic restoration function with the SD
CARD OFF button cannot be executed because
the button has been pressed for more than 10
seconds after the READY LED had begun to
flash.
• Release the SD CARD OFF button within 10 seconds after
the READY LED begins to flash. If the same error code is
displayed again, the possible cause is a hardware failure of
the CPU module. Please consult your local Mitsubishi
representative.
4C40H File transfer function (FTP
client) error
• When files are specified by using wild card
characters for the file transfer function instruction,
the number of files matched exceeds the upper
limit of the transferable number of files.
• When files are specified by using wild card
characters for the file transfer function instruction,
no files are matched.
• Check and correct the wild card specification.
• Check if the specified folder path exists.
4C43H File transfer function (FTP
client) error
• The number of processing completed files for
sending or acquiring FTP client file is
mismatched with the total number of processing
files.
• Execute the function again.
4C44H File transfer function (FTP
client) error
The file transfer function (FTP client) is executed
while the following functions are being executed.
• CPU module data backup/restoration function
• iQ Sensor Solution data backup/restoration
function
• Execute the File transfer function (FTP client) again after the
mentioned function is completed.
4C50H Special relay and special
register function error
• The free space in the data memory is not
enough.
• Increase the free space in the target memory (data memory)
and execute the function again.
4C51H Special relay and special
register function error
• Writing to the data memory is not completed
successfully.
• Initialize the memory to bring the drive (data memory) back to
normal state.
4C54H Special relay and special
register function error
• The request cannot be executed because the
CPU module is not in the STOP state.
• Set the operating status of the CPU module to STOP, and
execute the request again.
4C55H Special relay and special
register function error
• The number of files in the root directory and
subdirectory in the data memory exceeded the
limit.
• Increase the free space in the data memory and execute the
request again.
• Delete files in the data memory, and execute the request
again.
4C56H Special relay and special
register function error
• Reading from (an access to) a file is failed.
• The specified file does not exist. Or, the specified
subdirectory does not exist.
• Check that the file is not deleted.
• Check the file name and subdirectory name. Then, execute
the function again.
4D40H Firmware update function
error (Via engineering tool)
• Access to the flash ROM of the module to be
updated has failed.
• Perform the firmware update to the module again.
4D41H Firmware update function
error (Via engineering tool)
• Access to the module to be updated has failed.
• The module is unable to perform the firmware
update.
• An incorrect firmware update file (a firmware
update file not for the module to be updated) has
been used.
• An invalid firmware update file has been used.
Check the following and perform the firmware update again.
• No hardware failure occurs in the base unit or the module.
• The module started up normally.
• The module is able to perform the firmware update.
• The correct firmware update file for the module is set in the
engineering tool.
• The name or contents of the firmware update file are not
changed from their original state.
4D44H Firmware update function
error (Via engineering tool)
• A firmware update file of the version that cannot
be
i
nstalled on the module used has been used.
• The module does not support the firmware
update.
• The module information cannot be read from the
module to be updated.
• Use the module with a firmware version that supports the
firmware update using the engineering tool.
• Check if the module supports the firmware update.
• Check that the module is mounted properly, reset the CPU
module, and perform the firmware update again.
4D45H Firmware update function
error (Via engineering tool)
• The firmware update is disabled. • Enable the firmware update and perform the operation again.
4D46H Firmware update function
error (Via engineering tool)
• The engineering tool and the CPU module are
connected incorrectly. (The cable connection
and/or connection settings in the engineering tool
are not correct.)
• Check the cable connection and/or the settings in the
"Specify Connection Destination" window that the CPU No.1
is connected via USB or an Ethernet port ("Ethernet Port
Direct Connection"/"Connection via HUB").
• Check that the "Target PLC" is set to "Not Specified" in the
"Specify Connection Destination" window of the engineering
tool.
Error
code
Error name Error details and cause Action