Overview
EN 62361-2:2013 (IEC 62361-2:2013) defines end-to-end quality codes for Supervisory Control and Data Acquisition (SCADA) in power systems management to support long‑term interoperability. The standard documents and harmonizes the quality-code semantics used across multiple IEC and industry protocols, shows how quality information flows from substation devices to control centers, and records any loss of quality detail when mapping between protocols. Meter reading quality is explicitly out of scope for this edition.
Key topics and requirements
- Common quality code list: a cohesive set of quality codes with defined semantics for data validity, detail, timestamps, source and substitution.
- Standards harmonization: maps quality codes among major power‑system information-exchange standards including IEC 60870-5, IEC 60870-6 (TASE.2), IEC 61850, IEC 61970 (CIM/EMS-API), DAIS Data Access, OPC DA and OPC UA.
- Mapping and loss documentation: identifies and documents where quality information may be lost or transformed during protocol translation.
- Timestamp and time quality: addresses timestamp types, time accuracy and related quality attributes necessary for consistent event/measurement interpretation.
- Client‑server and multi-client scenarios: clarifies quality identifier relationships in different system topologies and how substitution/validity interact.
- Normative reference alignment: references and aligns to IEC profiles and related parts (e.g., IEC 61850-7-2, IEC 61850-7-3, IEC 61970-301).
Applications and who uses this standard
EN 62361-2 is intended for professionals and organizations involved in design, integration and operation of power‑system automation and information exchange:
- Utility system architects and control‑center operators ensuring data quality across SCADA and Energy Management Systems (EMS).
- System integrators and vendors implementing protocol gateways, inter‑utility interfaces or data historians.
- Device manufacturers (IEDs, RTUs) implementing quality flags and timestamp handling consistent with IEC standards.
- Software developers of OPC/DAIS/IEC interfaces, mapping tools and middleware needing unambiguous quality semantics.
- Standards and interoperability test labs validating end‑to‑end data quality across heterogeneous systems.
Related standards
This standard is essential when you need reliable, interoperable SCADA data quality semantics across multi‑vendor power systems and protocol mappings. Keywords: EN 62361-2, IEC 62361-2, SCADA quality codes, interoperability, IEC 61850, IEC 60870, OPC UA, CIM.