Mitsubishi Electric MELSEC iQ-RJ71C24-R2 - Chapter 3 Data Communication Using Nonprocedural Protocol

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