8 TROUBLESHOOTING
MELSEC-Q
8 - 90 8 - 90
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*12: This applies to the CPU module of function version B or later.
Error
Code
(SD0)
*1
Error Contents and Cause Corrective Action
Corresponding
CPU
3000
In a multiple CPU system, the
intelligent function module under
control of another CPU is specified in
the interrupt pointer setting of the PLC
parameter.
• Specify the head I/O number of the
intelligent function module under
control of the host CPU.
• Delete the interrupt pointer setting of
the parameter.
Qn(H)
*12
QnPH
The PLC parameter settings for timer
time limit setting, the RUN-PAUSE
contact, the common pointer number,
number of vacant slots, or system
interrupt settings are outside the range
that can be used by the CPU module.
• Read the detailed information of the
error using the peripheral device,
check the parameter items
corresponding to those numerical
values (parameter numbers), and
correct when necessary.
• Rewrite corrected parameters to the
CPU module, reload the CPU power
supply and/or reset the module.
• If the same error occurs, it is thought
to be a hardware error. (Contact
your local Mitsubishi representative.)
Rem
Memory, not in usable is selected at
the setting of [comment used by
instructions] in the PLC file setting.
In a program memory check, the check
capacity has not been set within the
range applicable for the CPU module.
The parameter settings in the error
individual information (special register
SD16) are illegal.
3001 The parameter settings are corrupted.
3002
When "Use the following file" is
selected for the file register in the PLC
file setting of the PLC parameter dialog
box, the specified file does not exist
although the file register capacity has
been set.
QnA
Qn(H)
QnPH
QnPRH
3003
The automatic refresh range of the
multiple CPU system exceeded the file
register capacity.
Change the file register file for the one
refresh-enabled in the whole range.
Qn(H)
*12
QnPH
The number of devices set at the PLC
parameter device settings exceeds the
possible CPU module range.
• Read the detailed information of the
error using the peripheral device,
check the parameter items
corresponding to those numerical
values (parameter numbers), and
correct when necessary.
• If the error is still generated following
the correction of the parameter
settings, the possible cause is the
memory errorm of the CPU module's
built-in RAM or program memory or
the memory card. (Contact your
local Mitsubishi representative.)
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