Web-based SCADA display systems (WSDS) for access via Internet

The World Wide Web (WWW) has become a convenient way to access information on the net because the WWW browser integrates different network services into a common easily accessible user interface. These features coupled with low investment cost are especially suited for accessing information of the SCADA (Supervisory Control and Data Acquisition) system. This paper describes a unique Web-based application which is implemented based on the client/server architecture. The user can view the real-time data superimposed on one-line diagrams generated automatically using the VLSI's placement and routing techniques. In addition, the user can also control the operation of the substation at the server site. The choice of the Java language offers unique and powerful features such as zero client installation, on-demand access and platform independence to the design of the SCADA display system.