Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 115)

Full-Duplex Protocol
Chapter 10
10Ć11
10044-I
DLE STX Data DLE ETX BCC
Message Packet
T
Retransmit Same Message
Timeout Loop
Received
Yes
T
No
Received
Yes
3*
No
Yes
P
Yes
3*
No
DLE ENQ
No
Timed Out
No
T
P = Recovery Procedure
= Ready to Transmit Next Message
* Default Values Used by the Module
Legend
Yes
DLE ACK
?
DLE NAK
? ?
NAKs
Received for this
Message
?
Timeouts
for this
Message
?