Rockwell Automation FactoryTalk View Machine Edition Users Guide - Manual (Page 549)

28 • Set up trends
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To use the Trends graphic library
1. Open the Graphics folder, and then open the Libraries folder.
2. Double-click the Trends library.
3. Drag and drop or copy and paste objects into your display.
Use buttons to control the trend at run time
You can use button graphic objects with the trend, to allow the operator to pause the trend,
switch between pens, or scroll the trend. You can link buttons to a specific trend object, or
set up a button to work with whichever object is selected in the graphic display. For
information about linking buttons to objects, see page 21-9.
Use these buttons with trends:
This button Does this
Pause Toggles between pausing and automatic scrolling.
When the trend is paused, the pen icons continue to move vertically to
indicate the pens’ current values.
When the trend resumes scrolling, values that occurred while the trend was
paused are filled in, bringing the trend up to the current time (unless you are
scrolling historical data).
Next pen Changes the vertical axis labels to the scale for the next pen. The color of
the labels matches the color of the selected pen.
Move up Scrolls up to show higher values on the vertical scale. For example, if the
visible scale range is 0 to 100, pressing move up could change the visible
range to 10 to 110.
The incremental amount the axis scrolls depends on the pen’s range and the
number of horizontal grid lines.
This button does not work if the “Minimum / maximum value option” in
the Y-Axis tab is set to Automatic.
Move down Scrolls down to show lower values on the vertical scale.
This button does not work if the “Minimum /maximum value option” in the
Y-Axis tab is set to Automatic.
Move left Pauses the trend and scrolls to the left.
Move right Pauses the trend and scrolls to the right.
Home Pauses the trend and moves to the earliest data in the trend.
End Resumes trend scrolling and moves to the current (latest) data in the trend.