Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Manual de usuario Pagina 211

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Detailed Flowcharts
Appendix D
D7
Figure D.7
TIMEOUT Subroutine
11660
TIMEOUT
RETURN
Scheduled By
Aborted By
WAKEUP
Wake Up the Process
Sleeping at WTRESP
(If Any)
STARTTIME
STOPTIME
Figure D.8
GETMSG Subroutine
GETMSG
RETURN
UNLINK
Remove a
Message from
Queue
Boxed area above must be executed
indivisibly, i.e., with the scheduler or
interrupts disabled, depending on
implementation.
Common
Output
No
SLEEP
Go to Sleep
at WTMSG
11661
Is
Queue
Empty
?
Yes
WTMSG
Output Queue
A Message
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