Mitsubishi Electric MELSEC iQ-RJ71C24-R2 - Page 51

2 DATA COMMUNICATION USING PREDEFINED PROTOCOL
2.4 Execution Condition of Predefined Protocol Communication
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2
Execution timing for mode switching request signal (Y2/Y9) or UINI instruction
It is assumed that the protocol setting data written to the flash ROM is normal, or the protocol setting data is not written to the
flash ROM.
■Execution timing for mode switching request signal (Y2/Y9)
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.
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.
OFF
ON
Mode switching request
(Y2/Y9)
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
ON ON
Mode switching
request
(Y2/Y9)
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
ON
OFF
Mode switching
request
(Y2/Y9)
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