repligen.com XC-LAB-UG-V4
The Trend application lets you query tags (data points or logged variables) from the Wonderware
Historian database and plot them. When you start the Trend application for the first time, you are
immediately prompted to connect to a Historian server. If you are opening an existing Trend file that
includes at least one server configuration and the login was successful, you are not prompted to log
in. It comes with 4 preconfigured trend files for your convenience.
In order to simplify the setup, Repligen has pre-configured several options and configurations for
you. For example, the tags are pre-loaded, and the screen layout has been optimized for viewing.
Trend supports two different chart types: a regular trend curve and an XY scatter plot. Multiple plot
configuration and display options are available (Figure 38
), and it is easy to save preferred layouts
for future use.
For more information on using tag picker and time picker tools, please see Section 7.12
.
7.12.3 Query Tool
Figure 39. Query example
7.12.4 Exporting data to Excel
To export data:
1. Select History Values from the Query type: drop-down menu (top left, Figure 39
).
2. In the Columns Pane (Figure 40), go to the Format tab, select the Wide query format.
3. In the Columns Pane, go to the Retrieval tab, select Cyclic from the retrieval mode drop-
down. For Cyclic attributes, select Values spaced every select 1 second (as shown below).
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