IEC 60870-6-802:2002 PDF

Overview

IEC 60870-6-802:2002 (with Amendment 1:2005) is an international standard published by the International Electrotechnical Commission (IEC). This standard specifies protocols for telecontrol equipment and systems, focusing on TASE.2 Object Models. It provides a comprehensive method for exchanging time-critical control centre data over wide-area and local-area networks using a fully ISO-compliant protocol stack. The standard supports both centralized and distributed architectures and is integral to modern Smart Grid applications.

The document details abstract object models-such as indication points, control points, and scheduling entities-to ensure interoperability in critical applications like energy management, scheduling, and accounting. Using the TASE.2 (Telecontrol Application Service Element 2) layer, it outlines how various types of real-time utility data are modeled, exchanged, and managed.

Key Topics

• Time-Critical Data Exchange: Guidelines for the transfer of real-time data indications and control operations in control centre environments.
• TASE.2 Object Models: Includes detailed object models for supervisory control and data acquisition (SCADA), scheduling, accounting, device outage, and event notifications.
• ISO and ITU-T Compliance: Protocols are fully compatible with ISO standards (e.g., ISO 9506 MMS) and ITU-T recommendations, enabling broad interoperability.
• Centralized and Distributed Architectures: Supports both topologies for enhanced flexibility in utility network design.
• Attributes and Quality Assessment: Object models encompass data validity, source, timestamping, and change tracking to ensure accurate and trustworthy information exchange.

Major Object Models

• IndicationPoint and ControlPoint Objects: Core to SCADA systems, representing input (status) and output (control) data, respectively, alongside metadata such as quality, timestamps, and change counters.
• Protection Equipment Events: Models for handling and exchanging data from protective relay operations, including status, trip events, and timing information.
• Transfer Accounts: Data models for scheduling and accounting, enabling periodic exchange and management of utility transactions, such as energy transfer schedules.

Applications

IEC 60870-6-802 is widely deployed within:

• Smart Grid Infrastructure: Facilitating reliable communication between energy control centers, grid operators, and distributed energy resources.