Mitsubishi MELSEC LJ71C24, User Manual

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App. - 35 App. - 35
APPENDIXES
Appendix 5.1.3 When communication type is "Send & receive"
The specified packet is sent, and the execution status changes to Waiting for receive
data status after the sending process completes normally. Then data are received from
other devices, and the process completes when the receive data matches the receive
packet and the receiving process is performed.
The operation image of "Send & receive" is as follows.
(1) Normal completion
C24 Receive packet
Receive packet
OFF at normal
completion
LCPU
Verification match
Send packet
Send packet
Start waiting for receive data
Store verification-matched
receive packet number
(1 to 16)
Execute dedicated
instruction
(G(P).CPRTCL
Completion device
Status display device
at completion
Other device
* Only if it is specified
(Receive
buffer clear)