Mitsubishi Electric Melsec Q Series User Manual page 112
Ethernet interface module
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Also See for Melsec Q Series:
- User manual (834 pages) ,
- Reference manual (674 pages) ,
- 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
Send command
Sending side
Send completion device
programmable
(Device specified with (D))
controller CPU
Send completion device
((D)+1 device)
Completion status
((S1)+1 device)
Ethernet
module
Ethernet
module
interrupt program
Receiving side
Sequence scan
programmable
controller CPU
Completion status
((S)+1 device)
4 - 21
(b) When abnormal completion
1) SEND instruction
SEND
0
END
0
OFF
Data
sending
Send error
Resend (when designated for twice)
2) RECVS instruction
END
0
END
?
END
0
?
Channel 1
Data
Data
sending
sending
Channel 3
RECVS
IRET
END
MELSEC-Q/L
END
0
END
0
END
1 scan
Error code
0
END
END
0
Error code
4 - 21
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