Trends – Rockwell Automation FactoryTalk Historian ME 2.2 Quick Start Guide User Manual

Page 28

Advertising
background image

F

ACTORY

T

ALK

H

ISTORIAN

ME Q

UICK

S

TART

G

UIDE

24

• •

3.

Either accept the default file name or enter a name of your
choice. The default file name is the name of the point whose
data is being exported, with _ArchiveInfo.csv appended to the
end. If you change the file name, you must retain .csv as the
file extension.

4.

Accept the default values for the following fields and click
[Save].

Save as type: The default type is HTML File.

Language: The default language is Unicode.

You can only export one row of data at a time.

Trends

Trends can be used to view data graphically for selected points over
a specified time period.

Click on Trends in the left-hand navigation bar to search and select
points for a trend chart.

Use the parameters described in “Current Data” to search for
points. Click [Search]. The search results are displayed with the
name, value, timestamp, and type of data listed in table format.

To create a trend of points for a specified time period:

1.

In the generated Points table, check the Select box for each
point you want to include in the trend chart.

2.

In the Trend Chart portion of the window, enter a start time
and end time to specify a time period for the selected points.

Note: If you want to enable auto refresh, you must set the end time to “*”.

3.

Check the Show Points box to display the selected points in the
trend chart. The points will show as small circles attached to
the end points of colored vertical bars. Each bar corresponds
with a data point contained in a list below the trend chart.

4.

Click the Show Vertical Bar box to display a moveable vertical
bar that you can click on and drag across the trend chart to
capture values for a specified time period.

5.

Click on the green arrow to create a trend for the selected
points within the specified time period.

Advertising