Rockwell Automation FactoryTalk View Machine Edition Users Guide User Manual

Page 445

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21

Set up graphic objects

21-53

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Scrolling through the list

If the piloted control list selector contains more states than can be shown in the list
simultaneously, the value of the Top Position connection (if assigned) changes whenever
the item at the top of the list changes.

If the Visible States connection is assigned, the values assigned to all visible states are
written to the Visible States connection whenever the list scrolls. To use this feature, the
assigned tag must support arrays, and the array must be the same length as the number of
visible states in the piloted control list selector. For information about using array tags, see
page 9-15.

To set up a piloted control list selector

1. Double-click the piloted control list selector.

2. In the object’s Properties dialog box, fill in the options on each tab:

In the General tab, specify what the selector looks like at run time, its number of
states, whether to write out a value when the operator presses the Enter key,
whether the operator can navigate to the selector using the keys on the keyboard or
keypad, and whether the cursor wraps from the bottom of the list back to the top.

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