Mitsubishi QJ71GP21-SX, Reference Manual

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9
DEDICATED INSTRUCTIONS
9.13 J(P).ZNWR
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(c) Checking the execution status of the ZNWR instruction
The execution status of the ZNWR 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 ZNWR
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 ZNWR
instruction.
• When completed normally
It remains OFF.
• When failed
Turns ON in the END processing for the scan after completion of the
ZNWR instruction, and goes OFF in the next END processing.
(d) Operation in ZNWR instruction execution
Figure 9.103 Operation in ZNWR instruction execution (own station)
Program of
own station
Completion device
of own station (D2)
Completion status
indication device
((D2)+1)
ZNWR instruction
ZNWR instruction execution Writing to device specified in
ZNWR instruction completed
Start contact
OFF
ON
ON
ON
END
processing
END
processing
END
processing
END
processing
OFF
OFF
When failed
Normal completion
1 scan