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I
4.A2CCPU
- - - - - - - - - - - - - - - - - - - - MELSEC-A
(2) STOP operation processing
(a) The STOP state indicates the state in which sequence program
operation has been stopped using the RUN switch or the remote
STOP switch.
(b) When the PC CPU enters the stop state, it saves the output statuses
before turning off all outputs (Y). Note that the status of devices
other than the outputs (Y) is retained.
(c) In the STOP state, the processing illustrated in Fig. 4.9 is repeated
until the operation state is changed from STOP to RUN or PAUSE.
(
STOP
)
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Output state is saved and all
outputs are turned off
I/O modules are refreshed
I
CPU error check
I
Operation state check
I
Fig. 4.9 STOP Operation Processing
IREMARKSI
(1) To set the PC CPU in the stop state, use one of the following methods:
a)
RUN
switch
b) Remote STOP contact
c) Peripheral device
d) STOP command:
J-
For details, refer to 4,2,3.
For details on individual processing, refer to the ACPU Programming Manual (common
instructions) .
4-15

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