Mitsubishi Electric A173UHCPU User Manual page 127

5. INSPECTION AND MAINTENANCE
(8) Flowchart when program cannot be written
The following flowchart assumes that a program or other data cannot be written to
the CPU when an attempt was made to write it.
Program cannot be written
Is the
RUN/STOP switch set to
STOP?
STOP
Is
M.PRO switch set to
OFF?
OFF
Contact your nearest
Mitsubishi representative with
details.
RUN Set RUN/STOP switch to
STOP.
Can
program be
written?
Reset the CPU.
Can
NO
program be
written?
ON
Set M.PRO switch to OFF.
Can
NO
program be
written?
5 − 16
YES
NO
YES
YES
End