A Visual Difference

In its original form from 1992, EDDL did not support any graphics. Back then, EDDL was just a list of parameters, a simple table with columns for parameter name, value, and unit. There was little or no organization of the information. However, after international standardization as IEC 61804, graphics and structure was added. Graphical elements include trend charts, waveform graphs, gauges, horizontal and vertical bar-graphs, histograms, and images. It is the device developer that decides what is displayed in the control system.

EDDL Evolution

The below examples illustrate how the enhancements to EDDL has made it easier to use and possible to support more sophisticated devices as device developers can build their expertise into the user interface.

From This...

...To This

Menu Elements

Below is an overview of the menu constructs device developers use to make navigation of the device easy.

Universal root menu
Navigation tree
Tabbed Cards
Frame
Window

Graphical Elements

Below is an overview of the graphical elements that device developers use to make working with the device easy.

Strip Chart
Gauge
Vertical Bar-Graph
Horizontal Bar-Graph
Waveform Graph
Table
Image