Mitsubishi Electric MELSEC iQ-R Series User Manual page 52

■Execution timing for UINI instruction
Communication protocol before change:CH1 and CH2 are other than the predefined protocol mode.
Communication protocol after change:CH1 or CH2 is 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)
Predefined
OFF
protocol
ready (X1D)
CH1 and CH2 are other than
predefined protocol mode
C24
Communication protocol before change:CH1 or CH2 is the predefined protocol mode.
Communication protocol after change:CH1 or CH2 is 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)
Predefined
protocol
ready (X1D)
CH1 or CH2 is the
predefined protocol mode
C24
2 DATA COMMUNICATION USING PREDEFINED PROTOCOL
50
2.4 Execution Condition of Predefined Protocol Communication
END
processing
UINI instruction execution
ON
Setting processing
Communication disabled
END
processing
UINI instruction execution
ON
ON
Setting processing
Communication disabled
END END
processing processing
ON
Abnormal
ON
completion
Normal
completion
One scan
ON
CH1 or CH2 is the
predefined protocol mode
END END
processing processing
ON
ON Abnormal
completion
Normal
completion
One scan
ON
CH1 or CH2 is the
predefined protocol mode