The module provides to OpenSCADA a mechanism of the final visualization of the visualization and control area (VCA). The module is based on the multi-platform library Qt of the graphical user interface (GUI) of initially created by the firm TrollTech. In its work, the module uses the data of the VCA engine — module VCAEngine).
OpenSCADA has extremely flexible architecture that allows you to create external interfaces, including user, in any manner and taste. For example, the OpenSCADA configuration environment available now as by means of the Qt-library, and also the Web-based.
At the same time, independent creation of the VCA implementations in different basis may cause the inability to use the configuration of one VCA into another one. That is inconvenient and limited from the user side, as well as costly in terms of implementation and follow-up support.
In order to avoid these problems, as well as to create as soon as possible the full spectrum of different types of VCA, the project of conception of the Visual Control Area (VCA) is established. The result of this project — this direct visualization module (based on the library Qt), direct visualization module WebVision and the VCA engine VCAEngine.