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Download the Solution Example here: TrendCustomDataSource.dbsln

Solution Name: TrendCustomDataSource

Software Version:  10.0.6

Keywords:  Trend. Data.

1

Summary

This example shows how to use

TrendCharts, and solutions on basic archiving, creating and

charting of Data.

Image Added

Technical Information

When creating a TrendChart, you can associate a Historian Tag with a Historian Table to supply data points. This configuration is done through the Historian section. These tables can either receive data from databases accessed via FrameWorX or from a script within a script class, accessible under Scripts > Classes.

In this example, the GetSamples method is applied in two different ways:

1. In the ServerMain ScriptClass, the method is used to create a custom signal and send it to the historian for plotting.
2. In the MyClass ScriptClass, the method is used to retrieve data stored in a table within a database, which is then sent to the historian for plotting.

When creating a

TrendChart, if you have data logging

set up in FactoryStudio (

via Edit

> Tags

> Historian)

or if you

're using FactoryStudio

with the OSIsoft PI System, the system will automatically

search for

archived

data to plot

.

If you want to

use data other than what the

system archives by default, you have

two options:

• Populate the historian archive (Tatsoft Database, Microsoft SQL, or other

• databases,

• including the PI System) from another application.

• Customize the GetSamples method used by the

• TrendChart, as demonstrated in the ServerMain and MyClass ScriptClasses

In this section:

One more advanced example of custom Trend chart drawing, where a curve model is created from a recipe: (TrendWithRecipe.rar).

Reference

See Trend Settings for more information