The DL/T 890.404 High Speed Data Access (HSDA) specification specifies a common interface for efficient exchange of data. This specification takes into account the delays caused by and across local area networks (LANs) that provide efficient data exchange.
DL/T 890.404-2009 Referenced Document
DL/T 890.1 Energy management system application program interface(EMS-API).Part 1:Guidelines and general requirements
DL/T 890.301 Energy Management System Application Programming Interface (EMS-API) Part 301: Common Information Model (CIM) Basics
DL/Z 890.401 Energy management system application program interface (EMS-API) Part 401: Component interface specification (CIS) framework
DL/T 890.404-2009 history
2009DL/T 890.404-2009 Energy management system application program interface(EMS-API).Part 404:High speed data access(HSDA)