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
END
0
END
0
END
0
END
0
END
0
END
0
END
0
END
0
END
0
END
0
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
END
0
END
0
END
0
END
0
END
0
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
Summary of Contents for MELSEC iQ-R Series
Page 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Page 34: ...32 MEMO ...
Page 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Page 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Page 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Page 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Page 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Page 2109: ......
