Emerson Epsilon EP Drive 400518-01 Manual de instalación Pagina 132

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Epsilon EP-P Drive and FM-3/4 Module Reference Manual
Figure 96: Time Slicing Flow Chart
Example Programs
Out and Return - Simple
Description: Move out to an absolute position and return
Index.2.Initiate ‘Absolute,Posn=10.000in,Vel=5.0in/s
Index.1.Initiate ‘Absolute,Posn=0.000in,Vel=10.0in/s
Wait For Index.AnyCommandComplete
Out and Return – More Complex
Description: Home, Wait For an input, Move out to an absolute position, set an output, dwell for 1 second, clear the output,
return to home position, repeat the out and return sequence until the stop input halts the program.
Home.0.Initiate ‘Sensor,Offset=0.000in,Vel=-10.0in/s
DriveOutput.1=ON ‘Set the “At Position 1” output
t = 0 usec
Control Loop
Update
Message(s)
Waiting?
Process
Message(s)
Process Task
End of
Update?
t = 1600 usec
Switch to next task
Task
Blocked?
Switch to next task
No
No
No
Yes
Yes
Yes
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