10Supervisory Control Systems

This term is used for a computer-based control systems, which enable supervision, control and data management of technological process. The designation SCADA (Supervisory Control And Data Acquisition) is used for these systems.

SCADA is a system operating with coded signals through communications channels to control a remote device. The control system is usually supplemented with a system for data acquisition on the state of the remote device, for data processing and data management.

Databases and programs of SCADA systems are connected to the HMI (Human-Machine Interface).

HMI is a software that performs visualization of technological processes. HMI provides technology operator with detailed information on schemes of all sensors and devices, state of the technology, trends of the tracked parameters and diagnostic data.

SCADA contains:

The development of SCADA system was implemented in four generations:

The following SCADA systems can be found on the market:

  • CITECT by Schneider Electric,
  • WinCC by Siemens,
  • RELIANCE by Geovap,
  • ControlWeb by Moravské Přístroje – www.mii.cz,
  • Wonderware In Touch by Schneider Electric,
  • RSView Studio by Rockwell Automation.