Mitsubishi MELSEC-A A2USHCPU-S1 User Manual page 64

4. CPU MODULE
(5)
RUN/STOP key
switch operation
sequence program
Executes up to the
RUN STOP END instruction,
then stops.
STOP RUN Starts.
Operation processing of PLC CPU when RUN/STOP key switch is operated
PLC CPU operation processing
Operation
processing of a External output
OS saves the output
status, and sets all the
output points to OFF.
Determined by the
output mode of the
parameter upon
STOP RUN.
POINT
1. Whether in the RUN state, STOP state or PAUSE state, PLC CPU is
performing the following:
Refresh processing of I/O module
Data communication with computer link module
Link refresh processing.
Thus, even in the STOP or PAUSE status, monitoring or testing I/O with
peripheral devices, reading or writing from a computer link module, and
communication with other stations by MELSECNET/10, MELSECNET/MINI-
S3 are possible.
2. STEP-RUN executes the END processing when executes the END (FEND)
instruction during step operation.
For current value update of the timer, the PLC adds 1 by 1 scan on the 10ms
timer and adds 1 by 10 scan on the 100ms timer.
Data memory
M, L, S, T, C, D
Retains the condition
immediately prior to
entering the STOP
status.
Starts operations
from the condition
immediately prior to
entering the STOP
status.
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Remark
Y
OS saves the output
status, and sets all
the output points to
OFF.
Determined by the
output mode of the
parameter upon
STOP RUN.