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7 FUNCTION
7.6.2 Remote PAUSE
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(1) What is Remote PAUSE?
(a)
The remote PAUSE performs PAUSE of the High Performance model
QCPU externally with the CPU module RUN/STOP switch at RUN position.
The PAUSE function stops the High Performance model QCPU calculations
while maintaining the ON/OFF status of all output (Y).
(b)
This can be used to maintain the output (Y) on even if the High
Performance model QCPU is changed to STOP status, in such areas as
process control.
POINT
The output (Y) is turned off upon a stopping error.
To retain the output even upon a stopping error, use I/O allocation of PC
parameters to set output retention.
(2) Method with Remote PAUSE
There are two ways to use remote PAUSE:
(a)
Method with remote PAUSE Contact
The remote PUASE contact is set at the "PLC system" tab screen in the
"(PLC) Parameter" dialog box of GX Developer.
The device can be set in the range of input X0 to 1FFF.
1)
The PAUSE status contact (SM204) is turned on when the END
processing is executed for the scan with both remote PAUSE contact
and PAUSE permission flag (SM206) on.
2)
When the remote PAUSE contact is off or SM206 is turned off, the
PAUSE status is canceled, and the sequence program calculation is
performed again from step 0.
0
OFF
Remote PAUSE
contact
OFF
SM206
OFF
SM204
RUN
RUN/PAUSE
status
Fig. 7.6 PAUSE Time Chart with Remote PAUSE Contact
END
0
END
ON
ON
ON
ON when
PAUSE
PAUSE
condition
met
MELSEC-Q
END
0
PAUSE status
END
0
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