This International Standard provides the base functionality considered necessary and common
that is provided by neither the normative standards incorporated by reference nor the new APIs
specified in the IEC 61970-403 to IEC 61970-449 1) generic interface standards. An application
is expected to use the Common Services in conjunction with the generic interfaces. These
application category independent interfaces include:
• IEC 61970-403: Generic Data Access (GDA)
• IEC 61970-404: High Speed Data Access (HSDA)
• IEC 61970-405: Generic Eventing and Subscription (GES)
• IEC 61970-407: Time Series Data Access (TSDA)
To support these objectives, the Common Services are divided into three categories:
a) Resource Identifiers – A common way of identifying classes, class attributes, and object
instances.
b) Resource Description – A common way of encoding values associated with classes, class
attributes, and object instances.
c) Views – A common way of presenting classes, class attributes, and object instances via
hierarchies.
IEC 61970-402 contains API services that are considered to be foundational. As such, all the
other parts in the IEC 61970-4xx series assume their existence. As a result, the services
described in IEC 61970-402 are required for any component that complies with the
IEC 61970-4xx series of standards.
Though the target of this IEC standard includes the control center technical domain, common
services encompass a general set of concepts that can be applied to many types of systems.
Examples of these systems include:
• Distribution management systems
• Work or asset management systems
• Geographic information systems
• Outage management systems
• Other types of operational business systems.
In recognition that the integration between applications in two or more of these systems is often
necessary, the intent of this specification is to address general common service requirements
to the extent that they are common to different types of systems while effectively addressing
the control center needs.
BS EN 61970-402:2008 Referenced Document
IEC 61970-1 Energy management system application program interface (EMS-API) - Part 1: Guidelines and general requirements
BS EN 61970-402:2008 history
2008BS EN 61970-402:2008 Energy management system application program interface (EMS-API) -Part 402: Common services