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APPX
Appendix 1 Error Codes
4285H Debug related
function error
• A non-executable function has been executed during
collection or save in memory dump.
• Execute the function again after the completion of save in
memory dump.
4286H Debug related
function error
• An item that cannot be set in the Safety CPU is specified in
the data logging settings.
• Correct the data logging settings.
4287H Debug related
function error
• A safety program is specified in the trigger logging step No.
specification.
• Ensure that no safety program is specified in the trigger
logging step No. specification.
4288H Debug related
function error
• The request cannot be executed because the number of
characters used in the name of the specified file exceeded
its limit.
• Rename the file within 61 one-byte characters (including
underscore, serial number (8 digits), period, and extension),
and execute the request again.
4289H Debug related
function error
• Items that cannot be set as data collection conditions are
set.
• Check and correct the data collection condition setting.
428AH Data logging
function error
• The data logging was started during the file batch online
change.
• Start the data logging after the completion of the file batch
online change.
428CH Data logging
function error
Execution fails because any of the following files does not
exist.
• CPU parameter file
• Global label setting file
• Program file with the target program name
Write the following files to the CPU module.
• CPU parameter file
• Global label setting file
• Program file with the target program name
4290H Data logging
function error
• The program file or global label setting file was changed
during the realtime monitor where a label (global label or
local label) is specified as a monitor target, timing condition,
or trigger condition.
• Do not change the program file or global label setting file
during the realtime monitor where a label (global label or
local label) is specified.
• Stop the realtime monitor where a label (global label or local
label) is specified.
• Check and correct the setting of the special register
(SD940), and execute the function again.
4291H Debug related
function error
• Online program change has been executed during the
execution of the real-time monitor where a step number is
specified as "Timing" or "Trigger condition".
• After the completion of the online program change, check
the step number specified and execute real-time monitor
again.
4292H Debug related
function error
• Real-time monitor does not begin during the execution of
real-time monitor.
• Start real-time monitor after the stop of the real-time monitor
being executed.
4293H Debug related
function error
• Execution fails because the internal buffer exceeds its
maximum capacity.
• Check and correct the settings of internal buffer capacity,
and then try again.
4294H Debug related
function error
• Execution fails because the settings of internal buffer
capacity has been changed during the execution of functions
that consume the internal buffer.
• Deactivate the functions that consume the internal buffer,
and then try again. Or, restore the internal buffer capacity to
the previous state, and then try again.
42A3H Safety related
error
• The safety operation mode specification details lie outside
the range.
• Change the safety operation mode again.
42A4H Safety related
error
• An attempt was made to change the safety operation mode
to TEST MODE while in TEST MODE, or to change the
safety operation mode to SAFETY MODE while in SAFETY
MODE.
• Check whether an attempt was made to change the current
safety operation mode to the same mode.
42A5H Safety related
error
• An operation that cannot be executed in SAFETY MODE
was performed.
•
Change the safety operation mode to TEST MODE and
execute again.
42A7H Safety related
error
• The safety operation mode cannot be changed to SAFETY
MODE.
• Change the CPU module operating status to other than RUN
and execute again.
• Execute again after completing writing of the safety
program, safety FB file, safety CPU parameters, safety
module parameters, safety global label setting file, and
standard/safety shared label setting file.
42A8H Safety related
error
• The safety operation mode cannot be changed to TEST
MODE.
• Change the safety operation mode again.
42A9H Safety related
error
• A CRC error occurred during communication with the Safety
CPU.
• Take measures to reduce noise, and retry data
communications.
• If the same error code is displayed again, the possible cause
is a hardware failure of the applicable module. Please
consult your local Mitsubishi representative.
42B0H • Communications between the CPU module and the safety
function module/SIL2 function module failed.
42B4H • An error was detected in the safety mutual monitoring
between the CPU module and the safety function module/
SIL2 function module.
42B8H Safety related
error
• The size of the program stored in the program memory and
the size of the program being executed differ.
• Restart the Safety CPU.
• If the same error code is displayed again, the possible cause
is a hardware failure of the applicable module. Please
consult your local Mitsubishi representative.
Error
code
Error name Error details and cause Action
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