Design of SCADA system based on Real-Time Linux

Existing SCADA systems are based on time unpretentiousness of technological systems and are concentrated especially on visualization. It means that their responses are in the order of tenths of a second. If we want to control this type of technology, we have to use a real-time (RT) system, which will guarantee keeping of time requests and early reactions on incoming events. In this paper we describe the architecture of a simple multi-SCADA system based on OS Linux, which uses the properties of RT Linux.