Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 145)

Half-Duplex Protocol
Chapter 11
11Ć18
Figure 11.10
Message Sink Full, Case 1
Full
OK
xxxx
xxxx
SINK MASTER LINK SLAVE SINK
10060–I
DLE ACK
SOURCE/ SOURCE/
BCC DLE SOH STN
DLE EQT
BCC DLE ENQ STN
Not Full
Sometime Later ...
(Timeout)
DLE STX xxxx DLE ETX
BCC DLE SOH STN DLE STX xxxx DLE ETX
No Message
Not Full