Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual - Manual (Page 214)

Detailed Flowcharts
Appendix D
DĆ4
Figure D.4
WTAK Subroutine
RETURN
Get the Response
Code (if Any)
From RESP
STOPTIME
Cancel the
ACK Timer
Common:
•
WTRESP: A Sleep Location
•
RESP: A Variable Used to Pass the Response
Code From the Receiver to the Transmitter
WTAK
STARTTIME
Start the ACK
Timeout
Receive
a Response
?
SLEEP
Go to Sleep
at WTRESP
No
Yes
Indivisible Zone
10074–I