Rockwell Automation FactoryTalk Historian SE ProcessBook 3.2 User Guide - Manual (Page 136)

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FactoryTalk Historian ProcessBook User Guide
118
Autorange Sets the value scale using the minimum and maximum tag values
between the trend start time and end time.
Database Sets the value scale using the tag attribute values in the Point
Database. Zero is the minimum. Zero + Span is the maximum. See
the
FactoryTalk Historian Server Reference Guide for more
information on tag attributes.
Absolute Allows you to enter a custom value for the value scale of a tag. Enter
the value in the adjacent box.
5. If you have selected the Absolute option, then type in the Maximum
and Minimum values of the scale in the adjacent boxes.
6. Click OK.
To return the trend scale to its original settings, click Revert on the
context menu.
Modifications made to a trend through use of this dialog box do not affect
the stored settings of the trend.
Trend Analysis Tools
FactoryTalk Historian ProcessBook provides a number of tools for
analyzing or monitoring the data in a trend, SQC chart, or XYPlot.
Trend Zoom (page
119)
Lets you use the mouse to drag a box around the data you would like
to see more detail.
Trend Expand
(page 120)
Temporarily expands a trend symbol so that it occupies the entire
display window.
Trend Cursor (page
120)
Shows the value of the plotted tags at a specific point in time.