Abstract

Specifies the rules for structuring application data units in transmission frames of telecontrol systems. It is one of a series of Standards applicable to telecontrol equipment systems. This Standard is identical with and has been reproduced from IEC 60870-5-3:1992.

RECONFIRMATION NOTICE
Technical Committee EL-050 has reviewed the content of this publication and in
accordance with Standards Australia procedures for reconfirmation, it has been determined
that the publication is still valid and does not require change.
Reconfirmed documents cannot be amended, but may be formally revised and a new edition
published.
Certain documents referenced in the publication may have been amended since the original
date of publication. Users are advised to ensure that they are using the latest versions of
such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for
reconfirmation on 31 May 2015.
Reconfirmed documents cannot be amended, but may be formally revised and a new edition
published.
The following are represented on Technical Committee EL-050:
Australian Industry Group
Chamber of Commerce and Industry Queensland
Energy Networks Association
Victoria University

Scope

This section of IEC 870-5 applies to telecontrol equipment and systems with coded bit serial data transmission for monitoring and controlling geographically widespread processes.

This section specifies rules for structuring application data units in transmission frames of telecontrol systems. These rules are presented as generic standards that may be used to support a great variety of present and future telecontrol applications. The layout is designed to limit the organizational overhead for standard data aquisition and supervisory control tasks to a necessary minimum with possible extensions for special tasks. From this point of view, it is appropriate to admit application specific or system specific choices of data presentation, of address structures and of chaining mechanisms for information objects in a frame. The corresponding arrangements can be, in most cases, assumed to be known by the communicating stations and thus need not burden the transmission frame.

This section describes the general structure of application data without specifying details about information fields and their contents. It describes basic rules to specify application data units.

Definitions and coding specifications of individual information elements that are frequently used in telecontrol applications are defined in IEC 870-5-4.

Compatibility between devices of different suppliers can only be reached by defining complete application profiles.

A complete application profile consists of:
- the specification of the physical interface;
- a subset of IEC 870-5-1;
- a subset of IEC 870-5-2;
- the specification of the application data units, based on both, IEC 870-5-3 and IEC 870-5-4;
- the specification of the application functions based on IEC 870-5-5.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 22/07/2015. This standard as been reconfirmed in Australia in 2015 and remains current in New Zealand. Reconfirmation Notice 22/07/2015
Pages
ISBN
Committee	EL-050
Supersedes	DR 97153 CP