標準號：BS EN 61970-404-2007
中文標準名稱：能量管理系統應用程序接口(EMS-API).高速數據存取(HSDA)
英文標準名稱：Energy management system application program interface (EMS-API) - High speed data access (HSDA)
標準類型：F21;L67
發布日期：2007/10/31 12:00:00
實施日期：2007/10/31 12:00:00
中國標準分類號：F21;L67
國際標準分類號：35.240.50
適用范圍：The IEC 61970-404 High Speed Data Access (HSDA) specification specifies a generalizedinterface for efficient exchange of data. The specification takes into account the latenciescaused by a Local Area Network (LAN) providing efficient data exchange also over Local AreaNetworks.IEC 61970-404 is derived from the Object Management Group (OMG) Data Acquisition fromIndustrial Systems section Data Access (DAIS DA) specification. OMG DAIS DA relies on theOMG Data Access Facility (DAF) and OPC Data Access (DA) specifications. OMG DAIS DA isa Platform Specific Model (PSM) with CORBA as the platform and OPC DA is a PSM withMicrosoft COM as the platform. IEC 61970-404 describes the functionality of these PSMs in atechnology independent way (i.e., as a Platform Independent Model (PIM)). Hence it explainsthe functionality to a level that can be used to create additional PSMs or act as anintroduction to existing PSMs, i.e. DAIS DA and OPC DA. Implementers wanting anintroduction to OMG DAIS DA and OPC DA shall read these documents.The HSDA interface is intended to interoperate with other IEC 61970 based interfaces.Hence, it is possible to use information retrieved from an other interface to access the sameinformation using this interface, for example:? object identifiers,? attribute names or identifiers,? class names or identifiers.Subclause 4.6 provides a generic mapping for the CIM classes and attributes.The way data is organized in a server implementing the HSDA interface can be seen by usingthe browse interfaces for data and meta data. It is also possible to use the data accessinterface directly without using the browse interfaces if the client has an a priori knowledge ofobject, class and attribute identifiers. Object identifiers may be retrieved using data from otherinterfaces, for example a CIMXML file or the IEC 61970-403 interface. Information on whatclasses and attributes are available will be described in IEC 61970-45X documents, forexample SCADA data, State Estimator results etc.IEC 61970-1 provides the EMS-API reference model upon which this standard is based. Inthat reference model, the terminology used in This part of IEC 61970 is introduced and therole of the CIS is explained.IEC 61970-401 provides an overview and framework for the CIS (IEC 61970-4XX) standards.The mapping of IEC 61970-404 to implementation specific technologies or PSMs is furtherdescribed in a separate series of documents, i.e. the future IEC 61970-5XX. For actualimplementations, the future IEC 61970-5XX, OMG DAIS DA, OMG DAF or OPC DA are used.