Overview
IEC TR 60870-6-505:2002 - “Telecontrol equipment and systems - Part 6-505: Telecontrol protocols compatible with ISO standards and ITU‑T recommendations - TASE.2 User guide” is a technical report from the IEC that provides practical guidance for using the TASE.2 (Telecontrol Application Service Element 2) family of standards. It helps utility users evaluate, procure, configure and operate TASE.2-based systems and supports vendors implementing TASE.2 in products. The report explains the TASE.2 object model, conformance blocks, deployment profiles and operational concerns to give readers a working understanding of the standard.
Key topics and technical requirements
- TASE.2 concepts and architecture: protocol architecture, client/server associations and API over ISO/OSI or TCP/IP profiles.
- Server and data objects: detailed descriptions of objects such as Association, Data Value, Data Set, Transfer Set, Account, Device, Program, Event (with cross-references to the normative specification).
- Conformance blocks: functional groupings including Periodic Power System Data, Device Control, Program Control, Event Reporting, Time Series Data and Information Messages - defining required objects and behaviors for each block.
- Services and data types: support for real‑time indications, control operations, time series, scheduling and accounting, unstructured file transfer, remote program control, and event notification.
- Profiles and network mapping: OSI and TCP/IP profiles, network configuration guidance and interoperability considerations.
- Operational concerns: procurement guidance (specification and NICD), configuration management, performance/fault management, bilateral table issues and user interface recommendations.
- Security and interoperability: informative security recommendations, version compatibility and interoperability testing guidance.
Applications and who uses it
- Utilities and system owners evaluating or deploying TASE.2 for exchanging time‑critical control center, power plant and substation data.
- Network architects and engineers designing wide‑area and local‑area telecontrol links using ISO/ITU‑T compliant stacks.
- Procurement managers preparing specifications and vendors implementing TASE.2 functionality in SCADA/EMS/telecontrol products.
- Integrators performing conformance testing, mapping utility data to conformance blocks, and managing operational configuration and fault/performance monitoring.
Related standards
Keywords: IEC TR 60870-6-505, TASE.2, telecontrol protocols, telecontrol, IEC, ISO, ITU‑T, utility telecontrol, real‑time data exchange, conformance blocks, power system communications.