Mitsubishi Electric MELSEC-L SERIES Basic User Manual page 343

(2) When the communication type is "Receive Only"
The receive process completes when the data received from a connected device match the receive packet
(expected packet). If they do not match, the data are discarded.
E71
Receive packet
(expected packet)
Data
Sixteen receive packets
can be specified.
The operation image of "Receive Only" is as follows.
(a) When the instruction ends normally
ECPRTCL instruction
Completion device
Completion device + 1
E71
Connected device
Not matched
Header
Discarded
Matched
Header
Received
Receive data
Receive data
Receive data 1
Data
Receive data 2
Data
The receive data matched
the receive packet
(expected packet).
APPENDICES
A
Connected
device
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