Rockwell Automation Arena OptQuest Users Guide User Manual

Page 33

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PTIMIZING

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Clicking on the column headers will reorder in ascending or decending order based upon
the column type. Clicking on the Included column header sorts the selected controls at the
top of the list. This is particularly helpful when the total number of controls is large but
only a few are selected for optimization.

1. From the Controls Summary grid, select the controls to optimize.

By default, none are selected. Check the boxes in the Included column for all those
controls to add into the optimization.

2. To modify a control, either select the desired row and press the Modify button, select

the node from the tree, or double-click the desired row.

Optional changes include:

‡

Low and High Bound. By default, OptQuest uses 10% from the control value in
the Arena model. The tighter the bounds you specify, the fewer values OptQuest
must search to find the optimal solution. However, this efficiency comes at the
potential expense of missing the optimal solution if it lies outside the specified
bounds.

‡

Suggested Value field. By default, OptQuest uses the values in your Arena model.
If the suggested values lie outside the specified bounds or do not meet the problem
constraints, OptQuest ignores them.

‡

Type. Confirm that Type indicates the correct type of values—continuous, dis-
crete, integer, or binary.

‡

Description. This field allows you to enter descriptive text that will be kept with
the control.

3. When the changes are complete for a selected line, click OK to save the changes and

exit the edit window. To exit the edit window without saving the changes, click the
Cancel button.

You can edit multiple controls by holding the control key while selecting rows in the grid.
Changes will be applied to all selected objects, but only changed fields will be modified. For
example, suppose Machine 1 has a low bound of 2 and a high bound of 5 and Machine 2 has a
low bound of 3 and a high bound of 4. If the high bound is changed to 7, the low bounds will be
left at 2 and 3.

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