Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Manual de usuario Pagina 206

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Detailed Flowcharts
Appendix D
D2
Figure D.1
Data Flow Diagram for FullDuplex Protocol
DLE ACK
DLE ACK
DLE NAK
UART
Multiplexer
Data Link Layer
Physical
Link
Layer
SENDCTL
SENDDATA
SENDETX
XMIT
Network
Layer
GETCODE
Messages
to
Be
Sent
Messages
Which
Have Been Sent
(Or Have Failed)
Row Output
Bytes
Messages
DLE
ENQ
Separa-
tor
Row Input
Bytes
Messages
DLE
ENQ
11652
Empty
Buffers
Received
Messages
RCV
E
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