title: IEC 61970
text: # IEC 61970
  
  The IEC 61970 series of standards by the International Electrotechnical Commission (IEC) deals with the application program interfaces for energy management systems (EMS). The series provides a set of guidelines and standards to facilitate:
  
  * The integration of applications developed by different suppliers in the control center environment
  * The exchange of information to systems external to the control center environment, including transmission, distribution and generation systems external to the control center that need to exchange real-time data with the control center
  * The provision of suitable interfaces for data exchange across legacy and new systems
  
  ## Set of standards
  
  The complete set of standards includes the following parts:
  
  * Part 1: Guidelines and general requirements
  * Part 2: Glossary
  * Part 3XX: Common Information Model (CIM)
  * Part 4XX: Component Interface Specification (CIS)
  * Part 5XX: CIS Technology Mappings
  