Mitsubishi QJ71C24N User Manual page 217

Melsec-q series
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8 DATA COMMUNICATION USING THE PRE-DEFINED PROTOCOL
8 - 12
Communication protocol before change:
CH1 or CH2 is the predefined protocol mode.
Communication protocol after change:
CH1 and CH2 are other than the predefined protocol mode.
END
processing
Sequence
program
UINI
instruction
OFF
Completion
device
Completion
OFF
status
indication
device
Mode switching
OFF
signal (X6/XD)
ON
Predefined
CH1 or CH2 is in
protocol
predefined protocol mode.
ready (X1D)
QJ71C24N(-R2/R4)
END
processing
Execution of UINI
ON
CH1 and CH2 are not in predefined protocol mode.
Setting processing
Communication not possible
MELSEC-Q
END
END
processing
processing
ON
ON
When failed
When completed
One scan
ON
OFF
8 - 12

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