Mitsubishi Electric MELSEC Q Series Reference Manual page 495

(c) Operation in RIWT instruction execution
• Operation of the own station
Program of own
station
RIWT instruction
Start contact
Completion device
of own station (D)
Completion status
indication device
((D)+1)
(d) RIWT instruction execution timing
• When completed normally
Sequence scan
Start contact
Completion device
Own station CPU
(Device specified in (D))
Completion status
indication device
(Device of (D)+1)
Write data storage device
(Device specified in (S2))
CC-Link IE Controller
Network module
CC-Link IE Controller
Network module
Sequence scan
Target station CPU
Write data storage device
(Device specified in
(S1)+2, (S1)+3)
END END
processing processing
RIWT instruction
execution
ON
OFF
OFF
OFF
RIWT
0 END 0
OFF
3000
Send buffer Receive buffer
0 END 0 END
CHAPTER 9 DEDICATED INSTRUCTIONS
END END
processing processing
Writing to the device
specified by RIWT
completed
ON
ON When failed
Normal completion
1 scan
END 0 END 0
1 scan
0 END 0 END 0
3000
END 0 END
END
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