ELSAG Datamat - enea-utmea

ASTROMIdentification of Control and Data Management Systemfunctional Architecture• Substation LAN (SCS-LAN)The primary communications activity of a master station is the acquisition of data from substations.The master station must communicate with IEDs such as RTUs, Data Concentrators, andGateways. In most applications, additional IEDs (such as relays and meters) are connected to oneof the other IEDs and do not communicate directly with the Master Station; however, there may besome IEDs that connect directly.The performance of the substation communications physical media has a direct effect on theperformance of the overall system. The speed and quality of the data acquisition is a primaryrequirement in the design of a SCADA system that must take into account the selection of thecommunications physical media.— ProtocolsIEC 61850 is the international standard that defines the hardware and communicationrequirements for all products within substation automation.