Mitsubishi Electric MELSEC Q Series Reference Manual page 439

(b) Target stations available for specification
• Target network
In addition to CC-Link IE Controller Network, stations in the following networks can be also specified.
• CC-Link IE Field Network
• MELSECNET/H
• MELSECNET/10
• Ethernet
• Target station's CPU type
The ZNWR instruction is executable when the target station has QCPU/LCPU/QnACPU/AnUCPU.
When the target station is an A2UCPU(S1), A3UCPU, A4UCPU, A2ASCPU(S1), or A2USCPU(S1), use
the CPU module with the following version or later.
• A2UCPU(S1), A3UCPU, A4UCPU: Version AY (manufactured since July, 1995) or later
• A2ASCPU(S1), A2USCPU(S1): Version CP (manufactured since July, 1995) or later
(c) Checking the execution status of the ZNWR instruction
The execution status of the ZNWR 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 ZNWR 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 ZNWR instruction, and turns OFF in
the next END processing, only when the ZNWR instruction has failed.
(d) Operation in ZNWR instruction execution
• Operation of the own station
END
processing
Program of
own station
ZNWR instruction
OFF
Start contact
OFF
Completion device
of own station (D2)
Completion status
OFF
indication device
((D2)+1)
END
processing
ZNWR instruction execution
ON
CHAPTER 9 DEDICATED INSTRUCTIONS
END END
processing processing
Writing to device specified in
ZNWR instruction completed
ON
ON When failed
Normal completion
1 scan
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