The requirements for SCADA and automation systems in substations are defined. This standard defines the process of substation integration as the design process that is the foundation for substation automation. Functional and environmental requirements are provided for all IEDs located in the system. Tutorial material is included in the annexes to address common issues with systems without introducing requirements. Information is also presented in the annexes regarding SCADA masters.
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IEEE Standard Definition, Specification, and Analysis of Systems Used for Supervisory Control, Data Acquisition, and Automatic Control
This standard applies to, and provides the basis for the definition, specification, performance analysis, and application of systems used for suervisory control, data acquisition or automatic control, or both, in attended or unattended electric substations, including those associated with generating stations, and power utilization and conversion facilities. This standard does not apply to electomech- National Standard Electrical and Electronics anical or static, protective-relaying equipment. Diagrams (Including Supplements ANSI (See ANSI/IEEE C37.90-1978 (R1982)[ll], ANSI/IEEE C37.90.1-1974 (R1979) , Y14-15a-1970 and ANSI Y14.15b-1973. ANSI/IEEE C37.91-1985 E131, ANSI/IEEE  ANSI 224.21-1957 (R1971), American C37.93-1976 [141, ANSI/IEEE C37.95-1973, National Standard Method for Measurement(R1980)[151 , ANSI/IEEE C37.96-1976 Specifying the Characteristics of Pickups for (R1981)[161, and ANSI/IEEE C37.97-1979 (R1984).
IEEE Standard Definition, Specification and Analysis of Systems Used for Supervisory Control, Data Acquisition, and Automatic Control
Distributed multi-computer master stations and distributed remote terminal units (RTUs) are introduced. Submaster RTUs used in an automated distribution system with downstream feeder RTUs is defined. Local area networks with master stations are discussed. Intelligent electronic devices (IEDs) with respect to their interface to RTUs and master stations are defined. New surge withstand capability (SWC) standards and their applicability to SCADA is shown.