Rockwell Automation FactoryTalk View Site Edition Users Guide User Manual

Page 466

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When the input object is ready to receive input, it has a solid border surrounded by a
highlight box:

This is called input mode (or input focus).

At run time, when a graphic display containing input objects is opened, the first non-
updating object in the index sequence receives focus.

If all the input objects in the display are set to update continuously, none of the objects
will receive initial focus. Instead, the operator must select an object to give it focus.

After selecting an input object, the operator can upload a value or restore a recipe into the
object. If an upload fails because of a communication error, the input object appears in
outline form.

To return to the input object to display mode, press ESC.

Validating operator input

To validate operator input, you can specify minimum and maximum values for numeric
input objects.

At run time, if the operator attempts to download a value outside the valid range, the input
object changes color, an error message is logged to the Diagnostics List, and the download
is canceled.

To define the minimum and maximum, in the Connections tab of the Numeric Input
Properties dialog box, specify a tag, expression, or number for each value.

In the Displays Settings dialog box, you can select the colors input objects will become
when operator input errors occur. For more information, see “Setting up the run-time
behavior of a graphic display” on page 16-47.

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