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36 ERROR CODES
36.4 List of Error Codes
4D47H Firmware update function
error (Via engineering tool)
• The operation cannot be performed because the
firmware update is being performed from another
engineering tool.
• The operation cannot be performed because the
CPU No.1 was not reset after the last firmware
update.
• A communication error occurred in the last
firmware update.
• Perform the firmware update to the module again after the
completion of the update from the other engineering tool.
• Manually reset the CPU module and perform the firmware
update again.
4D48H Firmware update function
error (Via engineering tool)
• The firmware update cannot be performed due to
a CPU module stop error.
• The module may be faulty.
• Check the parameters.
• Check whether the module is mounted correctly.
• If the same error code is displayed again, please consult
your local Mitsubishi representative.
4D49H Firmware update function
error (Via engineering tool)
• The CPU No.1 has been powered off or reset
during the firmware update processing.
• The engineering tool has been exited or a
communication error has occurred during the
firmware update processing.
• Perform the firmware update again.
4D4AH Firmware update function
error (Via engineering tool)
• The firmware update has been performed to the
module that the CPU No.1 does not support.
• The firmware update has been performed using
the firmware update file that the CPU No.1 does
not support.
• An invalid firmware update file has been used.
• Update the CPU No.1 to the latest firmware version and
perform the firmware update again.
• Ensure that the name or contents of the firmware update file
is not changed from its original state.
4D4BH Firmware update function
error (Via engineering tool)
• The CPU modules of CPU No.2 and later do not
support the firmware update using the
engineering tool.
• Update the CPU modules of CPU No.2 and later to the latest
version by performing the firmware update using an SD
memory card, and perform the operation again.
4D4CH Firmware update function
error (Via engineering tool)
• The module to be updated cannot be updated on
the extension base unit.
• The firmware update file set in the engineering
tool cannot be used for the module on the
engineering tool.
• Mount the module to be updated to the main base unit and
perform the firmware update again.
• Set the correct firmware update file for the module to be
updated in the engineering tool, and perform the firmware
update again.
4D4DH Firmware update function
error (Via engineering tool)
• A firmware data error has been detected during
the firmware update processing.
• Perform the firmware update again.
4D4EH Firmware update function
error (Via engineering tool)
• The specified operation cannot be performed
because the firmware update is being performed.
• The specified operation cannot be performed
because the CPU No.1 was not reset after the
firmware update.
• Reset the CPU module after the completion of the firmware
update and perform the specified operation again.
4D4FH Firmware update function
error (Via engineering tool)
• The firmware update has been performed to the
module controlled by the CPU module of CPU
No.2 or later.
• Set its control CPU to the CPU No.1 and perform the
firmware update again.
• Update the firmware of CPU No.1 to the latest version and
perform the firmware update again.
4D50H Firmware update function
error (Via engineering tool)
• A remote operation has been performed to the
CPU module of CPU No.2 or later during the
firmware update processing.
• The firmware update has been performed while
the CPU module of CPU No.2 or later is the RUN
state.
• Reset the CPU module and perform the firmware update
again.
• Change the operating status of the CPU module of CPU No.2
or later to STOP. Reset the CPU module and perform the
firmware update again.
4D52H Firmware update function
error (Via engineering tool)
• The control CPU does not support firmware
updates using the engineering tool.
• Update the control CPU to a version supporting the firmware
update function, and perform the firmware update again.
4D53H Firmware update function
e
r
ror (Via engineering tool)
• Performed an update on a module controlled by a
CPU module executing another function.
• Check that the control CPU is not executing another function,
and perform the firmware update again.
4D5AH Firmware update function
error (Via engineering tool)
• The firmware update cannot be performed
because a tracking cable is connected.
• Disconnect the tracking cable and try again.
4D5BH Firmware update function
error (Via engineering tool)
• In a redundant system with redundant extension
base unit, the firmware update has been
executed while both systems are powered on.
• Power off the standby system. Reset the CPU module of the
control system and execute the firmware update again.
Error
code
Error name Error details and cause Action
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