Mitsubishi MELSEC LJ71C24, User Manual

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9 DATA COMMUNICATION USING THE PREDEFINED PROTOCOL
9.4 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.
This signal turns ON only when the communication protocol setting is set to predefined
protocol.
(1) ON/OFF timing of the 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.
Error on CH1/2 (XE/XF)
OFF
Checks the protocol
setting data.
Turns OFF while checking.
Turns ON if the protocol
setting data are normal.
Predefined protocol
ready (X1D)
Power ON
Write protocol setting data to
flash ROM
Performed by user
Performed by C24
Checking time