9
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9.16 Z(P).RTMRD
9
DEDICATED INSTRUCTIONS
(c) Checking the execution status of the RTMRD instruction
The execution status of the RTMRD instruction (Executing, Normal completion,
Error completion) can be checked with the following devices specified in the
setting data.
1) Completion device (D2)
Turns ON in the END processing for the scan after completion of the RTMRD
instruction, and goes OFF in the next END processing.
2) Completion status indication device ((D2)+1)
Turns ON or OFF depending on the completion status of the RTMRD
instruction.
• When completed normally
It remains OFF.
• When failed
Turns ON in the END processing for the scan after completion of the
RTMRD instruction, and goes OFF in the next END processing.
(d) Operation in RTMRD instruction execution
Figure 9.126 Operation in RTMRD instruction execution (own station)
Program of
own station
Completion device
of own station (D2)
Completion status
indication device
((D2)+1)
RTMRD instruction
RTMRD instruction execution
RTMRD instruction
execution completed
Start contact
OFF
OFF
OFF
ON
ON
ON
END
processing
END
processing
END
processing
END
processing
When failed
Normal completion
1 scan
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