Mitsubishi Electric SV13/22 Programming Manual page 353

APPENDICES
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POINTS
(1) All special register data is cleared by the power-off, latch clear, and reset
operations. The data is retained when the RUN/STOP key switch is set to
STOP.
(2) The contents of the special relays (Note-1) in the table above are not
cleared even after the normal status is restored. To clear the contents,
use one of the following methods:
(a) Using a user program
Insert the ladder block shown at right into the program and turn on
the clear execution command contact to clear the contents of the
register.
(b) Using a peripheral device
Using the test function of a peripheral device, set the register to "0"
by using present value change or forced reset.
For details on the operation involved, refer to the manual for the
relevant peripheral device.
(c) Set the special register to "0" by setting the RESET key switch on the
front of the CPU to the RESET position.
Clear execution
command
(3) For special registers (Note-2), data is written in the sequence program.
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RST M9005
Enter the number
to be cleared.
APP − 35