Rockwell Automation FactoryTalk Historian SE ProcessBook 3.2 User Guide - Manual (Page 138)

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FactoryTalk Historian ProcessBook User Guide
120
used as the center of the zoomed trend. See Trend Cursor (page 120), for
more information on trend cursors.
Expand a Trend
When you double-click a trend in Run mode, the trend is redrawn so that it
occupies the entire display window. Double-click again to reduce the trend
to its original size.
While the trend is expanded, the Drawing toolbar is disabled. If you
switch to another display, the Drawing toolbar will work there.
All descriptive information (title, tag descriptor, tag value) is shown on an
expanded trend.
Trend Cursor
A trend cursor lets you read tag values for a particular time. When you
select a trend cursor, a vertical line indicates the cursor position. The box at
the top of the line indicates the value and status. The box at the bottom
displays the time and date of the value. On vertically-oriented trends the
cursor is horizontally oriented.
You may display several trend cursors at one time.
A trend does not update while trend cursors are visible.
If the trend is too small, the Trend Cursor command is disabled and the
mouse pointer does not change when you move over the left axis. You can
expand the trend by double-clicking it.
Trend cursors may be automated.