Introduction
The operator screens aid the operating of an automated process.
They use in the Control Expert software:
The project browser for browsing through the screens and launching different tools (the graphics editor, variables editor, messages editor, ...)
The graphics editor for creating or changing screens. In connected mode, it also allows the viewing of animated screens and process driving
The library of objects which presents design objects and enables their insertion in the screens. It also allows users to create their own objects and insert them in a library family.
Example of use
Example of automation structure that uses operator screens:

In this structure, we find:
The PLC which contains the process management automation project.
The terminal which contains the automation project with the operator screens. It is connected to the PLCs by the console line or by a network.
The operator screens view the process and can be ordered by the keyboard of the PC, the mouse or even by a command terminal connected to the PLCs.