Rockwell Automation 1756-HIST2G Historian ME 2.1 - Manual (Page 66)

F ACTORY T ALK H ISTORIAN ME M ODULE U SER ’ S G UIDE
56
3. Click [View] to display archived data for the specified time range.
The Archive Data table will display the values collected for the highlighted tag
during the specified time period.
Viewing Trends
FactoryTalk Historian ME Trends page allows you to select multiple tags and draw a
trend chart to view data. Each trend chart provides a visual representation of the data
collected over a specified time period. To view trend charts, click on View Data, and
then click Trends in the left-side navigation.
Search criteria entered the Current Data, Archive Data, and Trends pages persists
across all three pages. In the search fields, enter the search criteria, and then click
[Search].
Displaying the Trend Chart
The trend chart displays trends for selected points using colored variants to
distinguish between the different points. You will not be able to select the point for
viewing in the trend chart until data has been collected for the new point. Numbers on
the X axis at the bottom of the chart, represent the point timestamps. Numbers on the
Y axis at the left of the chart, represent the point values.
The table below chart displays the name, value and timestamp for each point in real-
time as the chart is refreshed. Select points to view from the Points table, set a time
range (optional), select an Auto Refresh rate (optional), check the Show Points and/or
Show Vertical Bar checkboxes (optional), and click the green arrow to draw the trend
chart. Use the right-hand scrollbar to view information for more than two points.
For information on sorting and viewing information in the table grid, see “Changing
the Views”.
See “Defining Search Criteria” for information.