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Using the Logic Editor
372 SPU 780 01EMAN May 2002 153
Segment Scheduler
Overview The Segment Scheduler governs when each segment of logic is solved and controls
which I/O drops are updated after each segment is solved.
The number of segments in the project is set in the Configuration editor. By default,
the segments are solved in numerical order (segment one first, segment two next,
and so on).
Using the
Segment
Scheduler
In the Networks panel right-click menu:
Step Action
1 Select Segment Scheduler.
2 Edit the fields in the Segment Scheduler dialog.
3 Select the control input:
Continuous: Sets the segment in this row to be solved every scan.
Set Control: Sets the segment to be solved only when a discrete address is
in a specific state. If you select Set Control, you must also:
Type the discrete address in the Address field, which controls whether the
segment in this row is to be solved.
Select whether the segment in this row is to be solved when the control
discrete is On or Off.
Watchdog Timer Reset: Inserts a Watchdog Timer.
4 Select the segment from the drop down list.
5 Select the input drop associated with the segment in this row during the solve
from the drop down box.
6 Select the output drop associated with the segment in this row during the solve
from the drop down box. For S901 projects/controllers the Drop In is replaced
with Chan In and Drop Out is replaced with Chan Out.
7 Click OK.