Methodology of analysis and design of a SCADA system

After a presentation of the architecture of a SCADA (Supervisory Control And Data Acquisition) system, we present the real-time aspects of the SCADA systems. A description of the functional and operational control-command applications method SA-¹RT (Structured Analysis Real Time) is presented. The purpose of this communication is to propose a general methodology of analysis and supervision of control-command applications based on the SA-RT method as well as the SCADA system.