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2、EMS-API) Part 407: Time Series Data Access (TSDA)The European Standard EN 61970-407:2007 has the status of a British StandardICS 33.200Energy management system application program interface BRITISH STANDARDBS EN 61970-407:2007BS EN 61970-407:2007Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS,
3、 02/01/2008 08:07, Uncontrolled Copy, (c) BSIThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2007 BSI 2007ISBN 978 0 580 56440 6Amendments issued since publicationAmd. No. Date Commentscontract. Users are responsible for its correc
4、t application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard is the UK implementation of EN 61970-407:2007. It is identical to IEC 61970-407:2007.The UK participation in its preparation was entrusted to Technical Committee PEL/
5、57, Power systems management and associated information exchange.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a EUROPEAN STANDARD EN 61970-407 NORME EUROPENNE EUROPISCHE
6、NORM September 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form and by
7、 any means reserved worldwide for CENELEC members. Ref. No. EN 61970-407:2007 E ICS 33.200 English version Energy management system application program interface (EMS-API) - Part 407: Time Series Data Access (TSDA) (IEC 61970-407:2007) Interface de programmation dapplication pour systme de gestion d
8、nergie (EMS-API) - Partie 407: Accs aux donnes en srie chronologique (TSDA) (CEI 61970-407:2007) Schnittstelle fr Anwendungsprogramme fr Energiemanagementsysteme (EMS-API) - Teil 407: Zugriff auf Daten, die auf Zeitfolgen beruhen (TSDA) (IEC 61970-407:2007) This European Standard was approved by CEN
9、ELEC on 2007-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standa
10、rds may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notif
11、ied to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania
12、, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/01/2008 08:07, Uncontrolled Copy, (c) BSIForeword The text of document 57/889/FDIS, future edition
13、 1 of IEC 61970-407, prepared by IEC TC 57, Power systems management and associated information exchange, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61970-407 on 2007-09-01. The following dates were fixed: latest date by which the EN has to be implemented at nat
14、ional level by publication of an identical national standard or by endorsement (dop) 2008-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-09-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IE
15、C 61970-407:2007 was approved by CENELEC as a European Standard without any modification. _ EN 61970-407:2007 2 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/01/2008 08:07, Uncontrolled Copy, (c) BSICONTENTS INTRODUCTION.4 1 Scope.5 2 Normative references .6 3 Terms, definitions and iden
16、tification conventions 6 3.1 Terms and definitions 6 3.2 Conventions 6 4 CIS Specification6 4.1 Background (informative) 6 4.2 Historian use case (informative) 7 4.3 Data model9 4.4 Messages (normative) .12 4.5 Interface (normative) .12 4.5.1 Objects and interfaces.12 4.5.2 Server and Session interf
17、aces .15 4.5.3 Management interfaces .16 4.5.4 Browse interfaces16 4.5.5 IO interfaces17 4.5.6 Client interfaces 19 4.6 Mapping of TSDA 19 Figure 1 Control system structure 8 Figure 2 TSDA server and clients.9 Figure 3 Data subscription .9 Figure 4 TSDA data model.10 Figure 5 TSDA objects and interf
18、aces 13 Figure 6 Typical Interaction between the TSDA objects15 EN 61970-407:2007 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications 21 .Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/01/2008 08:07, Uncontrolled Copy, (
19、c) BSIINTRODUCTION This part of IEC 61970 is part of the IEC 61970 series that defines Application Program Interfaces (APIs) for an Energy Management System (EMS). The IEC 61970-4XX and IEC 61970-5XX series documents comprise Component Interface Specifications (CISs). The IEC 61970-4XX series CIS ar
20、e specified as Platform Independent Models (PIMs), which means they are independent of the underlying technology used to implement them. PIM specifications are also referred to as Level 1 specifications. The IEC 61970-5XX series CIS, on the other hand, are specified as Platform Specific Models (PSMs
21、). PSM specifications are also referred to as Level 2 specifications. IEC 61970-4XX CISs specify the functional requirements for interfaces that a component (or application) should implement to exchange information with other components (or applications) and/or to access publicly available data in a
22、 standard way. The component interfaces describe the specific event types and message contents that can be used by applications for this purpose. IEC 61970-407 specifies an interface for the efficient transfer of time series data in a distributed environment. Small amounts of data are transferred wi
23、th short delay but also large amounts of data are transferred in short time but with possibly longer delay. Replay of time series data is also supported. This is a typical requirement for a SCADA system that acts as a real time data provider to other sub-systems. Other systems than SCADA may also be
24、nefit from the characteristics of TSDA. When short delay times as well as bulk data transfer is required TSDA is a good fit. These component interface specifications refer to entity objects for the power system domain that is defined in the IEC 61970-3XX series, including IEC 61970-301. EN 61970-407
25、:2007 4 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/01/2008 08:07, Uncontrolled Copy, (c) BSIENERGY MANAGEMENT SYSTEM APPLICATION PROGRAM INTERFACE (EMS-API) Part 407: Time Series Data Access (TSDA) 1 Scope The IEC 61970-407 Time Series Data Access (TSDA) specification specifies a gene
26、ralized interface for efficient exchange of data. The specification takes into account the latencies caused by a Local Area Network (LAN) providing efficient data exchange also over Local Area Networks. IEC 61970-407 is derived from the Object Management Group (OMG) Historical Data Access from Indus
27、trial Systems (HDAIS) specification. OMG HDAIS relies on the OMG Data Access Facility (DAF) and OPC Historical Data Access (HDA) specifications. OMG HDAIS is a Platform Specific Model (PSM) with CORBA as the platform and OPC HDA is a PSM with Microsoft COM as the platform. The IEC 61970-407 specific
28、ation describes the functionality of these PSMs in a technology independent way (i.e., as a Platform Independent Model (PIM). Hence, it explains the functionality to a level that can be used to create additional PSMs or be an introduction to existing PSMs, i.e. HDAIS and OPC HDA. Implementers wantin
29、g an introduction to OMG HDAIS and OPC HDA should read these documents. The TSDA interface is intended to interoperate with other IEC 61970 based interfaces. Hence, it is possible to use information retrieved from other interface to access the same information using this interface, for example: obje
30、ct 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 TSDA interface can be seen by using the browse interfaces for data and meta data. It is also
31、 possible to use the data access interface directly without using the browse interfaces if the client has an a priori knowledge of object, class and attribute identifiers. Object identifiers may be retrieved using data from other interfaces, for example a CIMXML file or the IEC 61970-404 interface.
32、Information on what classes and attributes are available will be described in IEC 61970-45X documents, for example historical SCADA data, historical State Estimator results etc. IEC 61970-1 provides the EMS-API reference model upon which this standard is based. In that reference model, the terminolo
33、gy used in this part of IEC 61970 is introduced and the role of the CIS is explained. IEC 61970-401 provides an overview and framework for the CIS (IEC 61970-4XX) standards. The mapping of IEC 61970-407 to implementation specific technologies or PSMs is further described in a separate series of docu
34、ments, i.e. the future IEC 61970-5XX. For actual implementations the future IEC 61970-5XX, OMG HDAIS, OMG DAF or OPC HDA are used. EN 61970-407:2007 5 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/01/2008 08:07, Uncontrolled Copy, (c) BSI2 Normative references The following referenced do
35、cuments are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61970-1, Energy management system application program interface (EMS-API
36、) Part 1: Guidelines and general requirements IEC/TS 61970-2, Energy management system application program interface (EMS-API) Part 2: Glossary IEC 61970-301:2005, Energy management system application program interface (EMS-API) Part 301: Common Information Model (CIM) base IEC 61970-401, Energy man
37、agement system application program interface (EMS-API) Part 401: Component Interface Specification (CIS) Framework IEC 61970-402, Energy management system application program interface (EMS-API) Part 402: Component Interface Specification (CIS) - Common Services Historical Data Access from Industria
38、l Systems (HDAIS), OMG Adopted Specification Version 1.0, dtc/2003-02-01 November 2003 (Referred herein as OMG HDAIS) Utility Management System (UMS) Data Access Facility (DAF), OMG Adopted Specification, Version 2.0, formal/02-11-08, November 2002 (Referred to herein as OMG DAF) Data Acquisition fr
39、om Industrial Systems (DAIS), OMG Adopted Specification Version 1.0, formal/2002-11-07 November 2002 (Referred herein as OMG DAIS) OPC Historical Data Access Custom Interface Specification, Version 1.20, OPC Foundation, December 2003 (Referred to herein as OPC HDA) 3 Terms, definitions and identific
40、ation conventions 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61970-2 apply. 3.2 Conventions A convention used in this document to uniquely identify a UML attribute is to concatenate the class name and the attribute name with a period in betwee
41、n, for example, the attribute “id” in the class “Node” will then be named “Node.id”. For attributes in sub structures multiple attribute names may be used, for example “Item.id.node_id” where the “node_id” is a part in the structure “Item.id”. 4 CIS Specification 4.1 Background (informative) For his
42、torical reasons, control systems for different industrial processes have evolved along different lines. Control systems for power systems have evolved on a UNIX base and control systems for most other industrial processes have evolved on a Windows base. For Windows based control systems, OPC has bec
43、ome the dominating standard. For UNIX based systems, the DAIS/HDAIS API defined in Common Object Request Broker Architecture (CORBA) EN 61970-407:2007 6 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/01/2008 08:07, Uncontrolled Copy, (c) BSIInterface Definition Language (IDL) has been dev
44、eloped. DAIS/HDAIS is based on OPC to benefit from the success of OPC and enable easy bridging to OPC. With this intent Object Management Group (OMG) started in 1997 to develop a CORBA based interface with the same functionality as OPC. TSDA has the functionality from OMG HDAIS and OPC HDA described
45、 in a technology neutral way, hence TSDA is intended to be a Platform Independent Model (PIM). 4.2 Historian use case (informative) An important component in a utility operational system is a Historian or Utility Data Warehouse (UDW) that acts as a repository for past or future time series data. A U
46、DW acts as a server to client components. Such a system typically has the following components: Process instrumentation making sensor data and actuation capabilities available. Remote Terminal Units (RTUs) or substation control systems reading sensor data and controlling actuators. Process communica
47、tion units connecting to RTUs or substation control systems. Remote communication is typically solved by specialized RTU or field bus protocols (e.g. IEC 60870-5). The IEC 61850 is a new standard for communication with and within substations. The interfaces defined in this specification can be used
48、as a standard API to encapsulate such communication solutions at the client side. SCADA subsystem making processed sensor data and control capabilities available to operators, applications or other systems. A Model based management system, for example Energy Management System (EMS), using the SCADA
49、subsystem for extended processing and control. A Graphical User Interface (GUI). UDW that stores time series data. The architecture is shown in Figure 1 below. EN 61970-407:2007 7 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 02/01/2008 08:07, Uncontrolled Copy, (c) BSITSDA clients SCADA or Telemetry system Model based management system (e.g. EMS) Historian or Data Warehouse (TSDA server) Data traffic across HSDA API Graphical UserInterface DatatrafficacrossTSDAAPIInstrumentation
