Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 472)

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Chapter 13
Configuring trends
This chapter describes trends, and outlines how to:
create and configure a trend object
layer trends to compare real-time and historical tag values
use objects from the Trends graphic library
provide buttons and sliders for controlling a trend at runtime
About trends
A trend is a visual representation of real-time or historical tag values.
The trend provides operators with a way of tracking plant activity as it
is happening.
You can:
plot data for as many as sixteen tags on one trend
use shading to emphasize when a particular tag crosses a reference
value
create a trend that is part of a graphic display or acts as the entire
graphic display
The illustration on the following page shows a trend that has been
added to a graphic display.