Mitsubishi Electric Melsec Q Series User Manual page 111

4 WHEN THE Q/LCPU ACCESSES THE PROGRAMMABLE CONTROLLER
OF ANOTHER STATION USING THE DATA LINK INSTRUCTION
Sequence scan
Send command
Sending side
programmable
Send completion device
controller CPU
(Device specified
with (D1))
Send completion device
((D1)+1 device)
Ethernet
module
Ethernet
module
Interrupt program
Sequence scan
Receiving side
programmable
controller CPU
Receive data storage
device (Device
specified with (D1))
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(2) Execution timing of the instruction (When executing reception
processing by an interrupt program)
(a) When normal completion
SEND (With arrival confirmation)
0 END
OFF
Data
sending
END 0
0 END 0
Channel 1
Storage
complete
Channel 3
RECVS
IRET
END
1 scan completion
?
MELSEC-Q/L
END 0 END 0
1 scan
END 0 END 0 END
Receive data
END
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