Mitsubishi Electric MELSEC Q Series Reference Manual page 473

(c) Checking the execution status of the RTMWR instruction
The execution status of the RTMWR instruction (Normal completion, Error completion) can be checked with the
following devices specified in the setting data.
• Completion device (D2)
Turns ON in the END processing for the scan after completion of the RTMWR instruction, and goes OFF in
the next END processing.
• Completion status indication device ((D2)+1)
Turns ON in the END processing for the scan after completion of the RTMWR instruction, and turns OFF in
the next END processing, only when the RTMWR instruction has failed.
(d) Operation in RTMWR instruction execution
• Operation of the own station
END
processing
Program of
own station
RTMWR instruction
OFF
Start contact
Completion device
OFF
of own station (D2)
Completion status
OFF
indication device
((D2)+1)
END
processing
RTMWR instruction execution
ON
CHAPTER 9 DEDICATED INSTRUCTIONS
END END
processing processing
RTMWR instruction
execution completed
ON
ON When failed
Normal completion
1 scan
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