The Object-Oriented Analysis Of IEC60870-5-104 And Its Software Exploitation In Substation

IEC60870-5-104(for short IEC 104 protocol) telecontrol protocol ,which usesstandard transport profiles for IEC60870-5-101 telecontrol protocol based on networkaccess,is seldom used because it involves network programming and has just beenreleased recently,the analysis and research of IEC 104 protocol itself are many,but theresearch of its detailed realization is little.In this paper ,the design plan of the softwarefor substation automation system are emphatically researched, IEC 104 protocol isanalysed and designed adopted the Object Oriented technique. The subject createseparately object model,dynamic model and function model,and introduce detailly theanalysis and design of objects in IEC 104 protocol's object model;Moreover,accessingof substation's real-time data is researched. In detailed realization, Microsoft Access2000 is used to establish database,Visual C++ 6.0 is used to realize IEC 104 .