Mitsubishi Electric Melsec Q Series User Manual page 126
Ethernet interface module
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Also See for Melsec Q Series:
- User manual (834 pages) ,
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- Programming manual (624 pages)
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4 WHEN THE Q/LCPU ACCESSES THE PROGRAMMABLE CONTROLLER
OF ANOTHER STATION USING THE DATA LINK INSTRUCTION
Sequence scan
Read command
Local station
programmable
Read completion device
controller CPU
(Device specified with (D2))
Read completion device
((D2)+1 device)
Buffer memory
(Address: 207)
Ethernet
module
Sequence scan
Write command
Write completion device
Local station
(Device specified with (D2))
programmable
controller CPU
Write completion device
((D2)+1 device)
Write data storage device
(Device specified with (S))
Buffer memory
(Address: 209)
Ethernet
module
4 - 35
(b) When abnormal completion
1) ZNRD instruction
ZNRD
0
END
0
Channel 1 (fixed)
Target station
error
2) ZNWR instruction
ZNWR
0
END
0
3000
Channel 2 (fixed)
Target station
error
END
0
END
?
END
0
END
?
MELSEC-Q/L
0
END
0
END
1 scan
Error code
0
END
0
END
1 scan
Error code
4 - 35
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