Supervisory Control and Data Acquisition (supervisory control and data acquisition). It refers to a special software for data acquisition and process control of the. They are in the automatic control software platform and development environment system monitoring layer level, the use of flexible configuration, with rapid construction of general level of software tools of industrial control system monitoring function, for the user. Application of configuration software is very wide, can be applied to electric power system, water supply system, petroleum, chemical and other fields of the supervisory control and data acquisition and process control fields. Also called telecontrol system in power system and electrified railway (RTU System, Remote Terminal Unit).