3.25 View Help for a device parameter
Procedure
1. Go to the desired parameter in the connected device.
2. Press and hold the parameter.
A menu appears.
3. Tap Help.
The help text is displayed.
4. Tap OK to close the Help screen.
3.26 Graphics
The Electronic Device Description Language (EDDL) capabilities let the Trex unit display
graphics for the connected devices. You can view HART or FOUNDATION fieldbus device
information as images, charts, and graphs.
Each type of graphic lets you zoom in, zoom out, and reset the graphic. You can also use
the drop down box to select a variable, if multiple variables are displayed.
Figure 3-46: Graphics options
A. Select a variable. The selected variable is displayed with a bold line.
B. Reset the zoom level.
C. Zoom out
D. Zoom in
3.26.1 Images
An image is a full-screen picture of a device. Images can include logos and various
graphics, such as tanks. To view the image, select the image or drawing label in the menu.
The full screen image is shown. To close the image, tap the touchscreen.
Some images have links that let you run methods or view additional menus. If an image
has a link, a button is displayed at the bottom of the screen.
3.26.2 Charts
Charts display a graphic view of variables as they occur over time. There are four types of
charts:
User Guide Field Communicator application
September 2021
User Guide 117
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