Mitsubishi Electric MELSEC iQ-R Series User Manual page 84

(0) Convert the transmission command into pulse.
(3) Store the data to be transmitted.
Designate the transmission channel.
Designate the send data quantity.
Set the instruction execution flag.
(69) Reset the completion flag by an external command.
3 DATA COMMUNICATION USING NONPROCEDURAL PROTOCOL
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3.2 Transmitting Data to Target Device