8 TROUBLESHOOTING
MELSEC-Q
8 - 42 8 - 42
*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
1010 Entire program was executed without
the execution of an END instruction.
• When the END instruction is
executed it is read as another
instruction code, e.g. due to noise.
• The END instruction has been
changed to another instruction code
somehow.
• Take noise reduction measures.
• Reset the CPU module and RUN it
again. If the same error is displayed
again, this suggests a CPU module
hardware fault. (Contact your local
Mitsubishi representative.)
1011
1012
1020
The SFC program cannot be normally
terminated due to noise or other
reason.
• The SFC program cannot be
normally terminated due to noise or
any similar cause.
• The SFC program cannot be
normally terminated for any other
reason.
Q00J/Q00/
Q01
*12
QnPH
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