Mitsubishi Electric MELSEC iQ-R Series - Page 620

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36 ERROR CODES
36.4 List of Error Codes
42DFH Redundant system related
error
• The request cannot be executed because an
error has been detected in the communications
between the CPU modules of the control system
and the standby system.
• Check if the tracking cables have been properly connected. If
the same error code is displayed again even after the
tracking cables are connected properly, the possible cause is
a hardware failure of the CPU module, redundant function
module, or tracking cable. Please consult your local
Mitsubishi representative.
433CH Maintenance and
inspection error
• The error was not cleared. (Error clear was
performed during execution of error clear.)
• Execute again after a while.
If the same error code is displayed again, the possible cause is
a hardware failure of the target module. Please consult your
local Mitsubishi representative.
433DH Maintenance and
inspection error
• The target module cannot handle the error clear. • Check the target module. (Check the module in which the
error occurred.)
4400H Security function error • A file protected by a password has been opened
without unlocking the password.
• Enter a correct password and perform password
authentication.
4401H Security function error • Read password authentication has failed when
required.
• The file password format is incorrect.
• Set a correct read password and perform password
authentication.
• Access the file with the correct method.
4402H Security function error • Write password authentication has failed when
required.
• The file password format is incorrect.
• Set a correct write password and perform password
authentication.
• Access the file with the correct method.
4403H Security function error • Both passwords for reading and for writing that
are set upon Create, Change, Delete, or Disable
do not match the previous ones.
• Set correct passwords for both reading and writing, and
perform password authentication.
4404H Security function error • A file error was detected before or after
performing Create, Change, or Delete.
• Initialize the drive including the target file by initializing the
memory.
• Write the target file to the programmable controller again,
and then register or cancel the file password.
4408H Security function error • Password authentication failed when access was
required.
• Set a correct password and perform password authentication
again.
4409H Security function error • Password authentication failed when access was
required.
• Set a correct password and perform password authentication
again 1 minute later.
440AH Security function error • Password authentication failed when access was
required.
• Set a correct password and perform password authentication
again 5 minutes later.
440BH Security function error • Password authentication failed when access was
required.
• Set a correct password and perform password authentication
again 15 minutes later.
440CH Security function error • Password authentication failed when access was
required.
• Set a correct password and perform password authentication
again 60 minutes later.
440DH
440EH Security function error • The security function was activated and
password authentication cannot be performed.
• Set a correct password and perform password authentication
again after a certain period of time.
440FH Security function error • An operation was performed to the firmware
update prohibited file with a file password set.
• Disable the file password setting.
4410H Security function error • The file of the locked CPU module is accessed
without the security key authentication.
• Register the security key which locks the CPU module to the
engineering tool.
• When the project is opened, lock the project with the security
key which locks the CPU module.
• When the CPU module is locked, the access control target
file cannot be accessed using the following functions or
external devices.
 FTP server function
 SLMP/MC protocol
 GOT
 EZSocket
4412H Security function error • The security key cannot be registered to the CPU
module due to the failure of the internal memory
where the security key is registered. Or, the
security key of the CPU module cannot be
deleted.
• Hardware failure of the CPU module. Replace the CPU
module.
4413H Security function error • Since the CPU module is locked and 32
engineering tools are reading and writing
programs simultaneously, another engineering
t
o
ol cannot read or write programs.
• Wait until the number of engineering tools which are reading
and writing programs decreases to 31 or less, and read or
write programs.
4414H Security function error • The request cannot be executed because the
CPU module is locked.
• Do not execute the request because it cannot be executed
by the CPU module which is locked.
Error
code
Error name Error details and cause Action