Mitsubishi Electric MELSEC iQ-R Series User Manual page 53

Communication protocol before change: CH1 or CH2 is the predefined protocol mode.
Communication protocol after the change: CH1 and CH2 are other than the predefined protocol mode.
END
processing
Program
UINI
instruction
OFF
Completion device
OFF
Status indication
device at
completion
Mode switching
OFF
in progress
(X6/XD)
ON
Predefined
protocol
ready (X1D)
CH1 or CH2 is the
predefined protocol mode
C24
END END
processing processing
UINI instruction execution
ON
CH1 and CH2 are other than
predefined protocol mode
Setting processing
Communication disabled
END
processing
ON
Abnormal
ON
completion
Normal
completion
One scan
OFF
2 DATA COMMUNICATION USING PREDEFINED PROTOCOL
2.4 Execution Condition of Predefined Protocol Communication
2
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