Mitsubishi Electric MELSEC iQ-R Series - Page 1506

1504
15 NETWORK COMMON INSTRUCTIONS
15.1 Link Dedicated Instructions
• The following figure shows the execution timing of the J(P).ZNRD instruction.
The completion status is stored in the special register (SW) when the CC-Link IE Controller Network is used or in the buffer
memory when Ethernet is used.
• When the J(P).ZNRD instruction is executed, read processing is performed only once on the rising edge when the read
command turns on.
• When completed successfully
• When completed with an error
100
100
END0END0END0END0END0
END0 END0END0END0END0
OFF
OFF OFF
OFF
ON
ON
OFF
ZNRD
Sequence scan
Start contact
CPU module on
the own station
CPU module on
the target station
Network
module
Network
module
Completion device
(d2)
Completion status
indication device
(d2)+1
Device for storing
the read device (d1)
Sequence scan
Device where the
read data is stored
(s2)
1 scan
END0END0END0END0END0
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
ZNRD
1 scan
Error code
Sequence scan
Start contact
CPU module on
the own station
Network
module
Completion device
(d2)
Completion status
indication device
(d2)+1
Completion status
Target station error