Rockwell Automation FactoryTalk Historian SE ProcessBook 3.2 User Guide - Manual (Page 177)

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Example 1: Comparing Values for Two FactoryTalk
Historian Tags
In this example we will create an XYPlot on a display in FactoryTalk
Historian ProcessBook to compare values for two FactoryTalk Historian
tags.
1. On the Drawing toolbar, click the XYPlot button and drag to form the
bounding rectangle for the plot. The Define XYPlot dialog box
appears.
2. Type a title for the plot and select 2 tags to be entered in the Tags in
Plot list.
3. Click an option button to select one tag to be the X tag.
4. Use the default settings for time range, scale, and retrieval method.
5. Click the Display Format tab and check the box for the regression
line.
6. Select the Plot Format tab and accept the default values.
7. Click OK and the plot appears.
Example 2: Comparing Different Tags to Optimize
Performance
In this example we will compare different tags to help optimize equipment
performance.
Suppose an engineer has just completed some optimization work on
Boiler1, one of the four boilers in the plant. He wants to optimize the other
three boilers (Boiler2, Boiler3, and Boiler4) so that they perform at the
same level. After adjusting the three boilers, he wants to see how closely
they perform to the optimized Boiler1.
Assume that all four boilers run identical processes.