784
APPX
Appendix 1 Error Codes
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.
4C52H Special relay
and special
register function
error
• The function memory clear request or the data memory file
transfer request is sent during a data logging.
• Do not send the function memory clear request or the data
memory file transfer request during a data logging.
4C53H Special relay
and special
register function
error
The function memory clear request or the data memory file
transfer request is sent during execution of the following
functions.
• File batch online change
• Data transfer to the data memory
• Send the function memory clear request or the data memory
file transfer request after the completion of the functions.
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.
C000H
to
CFBFH
MELSEC iQ-R Ethernet User's Manual (Application)
CFC0H Cyclic
transmission
error (master
station)
• Unable to execute cyclic transmission because multiple
master stations exist in the same network address.
• Check the existence status of master station in network.
CFC1H Cyclic
transmission
error (master
station)
• Unable to execute cyclic transmission because the error
occurred in cyclic transmission.
• Take measures to reduce noise.
• If the same error is displayed again, please contact your
local Mitsubishi representative.
CFC8H Cyclic
transmission
error (master
station)
• Unable to execute cyclic transmission because the slave
station controlled by other master station exists.
• Check the existence status of master station in network.
• Check the slave station where the error occurred.
CFC9H Cyclic
transmission
error (master
station)
• Unable to execute cyclic transmission because the slave
station of the same IP address exists in the same network
address.
• Check the existence status of slave station in network.
• Check the slave station where the error occurred.
CFD0H Master station
error
• The port No. (61450) used in CC-Link IE Field Network
B
asic has already been used.
• Check the port No. used in Ethernet function.
CFD1H Master station
error
• Invalid value has been set in subnet mask. • Check the parameter setting.
CFE0H Cyclic
transmission
error (slave
station)
• The cyclic transmission was executed for the slave station
controlled by other master station.
• Check the existence status of master station in network.
• Check the slave station where the error occurred.
CFE1H Cyclic
transmission
error (slave
station)
• The unusable number of occupied stations has been
specified from master station.
• Check the number of occupied stations setting in master
station parameter (Network Configuration Settings).
• Check the slave station where the error occurred.
Error
code
Error name Error details and cause Action