ABB IEC 61850 Edition 2 Communication Protocol Manual

Also see for IEC 61850 Edition 2: Communication protocol manual

Section 2 Introduction to IEC 618502.1 Overview GUID-66925336-B6C3-4B22-95F4-A3321B63FABB v7The general scope of the IEC 61850 protocol standard is designed to support thecommunication of all functions being performed in the substation. Its’ main goal isinteroperability; this is the ability for IEDs from one or different manufacturers toexchange information and use the information for their own functions. Moreover,the standard allows a free allocation of these functions and accepts any systemphilosophy, from a distributed architecture (for example, decentralised substationautomation) to a centralised configuration (for example, RTU based).The standard separates the functionality represented by the data model and therelated communication services from the communication implementation (stack).The data model of the standard is an object-oriented one, grouping the data into thesmallest possible sets referring to the smallest possible functions to beimplemented independently. These smallest possible data groups or functions arenamed logical nodes. The logical nodes and all data and attributes contained arenamed according to a standardised semantic, which is mandatory.This manual describes how the IEC 61850 standard is applied in the IEDs.References and brief descriptions of the standard are also included. It is assumedthat the reader has basic knowledge of the IEC 61850 standard.The following parts of the IEC 61850 standard are of importance as they relate tothis manual:• Station Configuration description Language (SCL) is described in IEC61850-6. The SCL is an XML based definition of how to describe the parts ofa substation. This part of the standard also includes the roles of different toolsas well as the engineering concepts.• Communication profile (IEC 61850 stack) is described in IEC 61850-8-1. Thispart of the standard includes a number of possible communication profiles, andhow the services defined in IEC 61850-7-2 are mapped to the communicationprofile.• Communication services are described in IEC 61850-7-2. This part dealsmainly with the communication facilities from client and server point of view.It includes the different possibilities of communication functionality.• Logical node data model. This is described in IEC 61850-7-3 and IEC61850-7-4.• Conformance tests and the basis for conformance documents are handled inIEC 61850-10.1MRK 511 393-UEN A Section 2Introduction to IEC 61850670 series 2.2 IEC 19Communication protocol manual