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MELSEC-Q
8 DATA COMMUNICATION USING THE PRE-DEFINED PROTOCOL
8.1.5 Executing Condition of Predefined Protocol Communication
The predefined protocol communication can be executed when the predefined protocol
ready (X1D) is on.
Use the signal as an interlock signal when executing the predefined protocol
communication in the sequence program.
However, note that only the functional protocol can be executed when Predefined
protocol ready (X1D) is off. (Refer to Section 10.7.1.)
This signal turns on only when the communication protocol setting is set to predefined
protocol.
(1) ON/OFF timing of Predefined protocol ready (X1D)
After the protocol setting data is written to a flash ROM, X1D turns off while
checking the written data.
X1D turns on when the written data are normal.
OFF
Performed by the
QJ71C24N(-R2/R4)
Performed by the user
Writing protocol setting
data to the flash ROM
Predefined protocol
ready (X1D)
Power ON
Check time
OFF during check of
protocol setting data
CH1 or CH2 ERR
(XE/XF)
Turns ON if the protocol
setting data are normal.
Содержание MELSEC QJ71C24
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