scope:

General

This part of IEC 61850 specifies a method of exchanging data through any kinds of network, including public networks. Among the various kinds of services specified in IEC 61850-7-2, only the client/server and time synchronization services are considered so far.

NOTE Client/server services of GOOSE and SMV models are mapped as well (see Table 1).

For the client/server services, the principle is to map the objects and services of the ACSI (Abstract Communication Service Interface defined in IEC 61850-7-2) to XML messages transported over XMPP. The mapping description includes mainly three aspects:

• The usage of the XMPP protocol itself, describing in details which features are really used and how they are used by the mapping (see Clause 6).

• How to achieve end-to-end secured communications (see Clause 7).

• The description of the XML payloads corresponding to each ACSI service thanks in particular to the XML Schema and XML message examples (starting at Clause 9).

NOTE 1 This document does not address the detailed usage of the XMPP protocol.

NOTE 2 This document does not address system management services.

NOTE 3 For the information of people familiar with the mapping defined in IEC 61850-8-1, the XML messages defined in the present document are derived from those defined in IEC 61850-8-1 but with an XML encoding instead of a binary one. In this way implementing gateways between IEC 61850-8-1 and IEC 61850-8-2 is very straightforward in both directions. However reading IEC 61850-8-1 is not necessary to understand the present document except when it is used in conjunction with one of the GOOSE mappings described in IEC 61850-8-1.

Namespace name and version

This new section is mandatory for any IEC 61850 namespace (as defined by IEC 61850-7-1).

The parameters which identify this release of the SCSM_8_2 namespace xmlns="http://www.iec.ch/61850/2018/SCSM_8_2" are:

• Namespace Version: 2018

• Namespace Revision: A

• Namespace Release: 1

• Namespace release date: 2018-12

Code Component distribution

The Code Components included in this IEC standard are also available as electronic machine readable file at:

http://www.iec.ch/tc57/supportdocuments/IEC_61850-8-2.2018_ed1.0.XSD.2018A1.full.zip

The Code Component(s) included in this IEC standard are potentially subject to maintenance works and users shall select the latest release in the repository located at: https://www.iec.ch/tc57/supportdocuments.

The latest version/release of the document will be found by selecting the file IEC 61850-8- 2.2018_ed1.0.XSD.{VersionStateInfo}.full.zip with the filed VersionStateInfo of the highest value.

In case of any differences between the downloadable code mentioned above and the IEC pdf published content, the downloadable code(s) is(are) the valid one; it may be subject to updates. See history files.