IEC 62056-7-6-2013 PDF

Full title and description

IEC 62056-7-6:2013 — Electricity metering data exchange — The DLMS/COSEM suite — Part 7-6: The 3-layer, connection-oriented HDLC based communication profile. This part of the IEC 62056 DLMS/COSEM family defines a three-layer communication profile using an HDLC-based, connection-oriented data link for reliable exchange of metering data between devices and systems.

Abstract

IEC 62056-7-6:2013 specifies the DLMS/COSEM 3-layer, connection-oriented HDLC based communication profile including identification/addressing, layer services and service mapping to the DLMS/COSEM application layer, and profile‑specific considerations and constraints required to ensure interoperable meter communications.

General information

• Status: Published / Current (stable document within IEC 62056 suite).
• Publication date: 16 May 2013.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 17.220.20; 35.110; 91.140.50 (measurement of electrical quantities, networking, electricity supply systems).
• Edition / version: Edition 1.0 (2013).
• Number of pages: 35 pages (IEC base publication bilingual English/French).

Core bibliographic and publication details are recorded in the IEC publication entry and adopted national/European versions.

Scope

This standard defines a communication profile for the DLMS/COSEM suite that uses a three‑layer architecture and an HDLC (High-Level Data Link Control) connection‑oriented data link layer. It covers targeted communication environments, structure of the profile, identification and addressing schemes, supported layer services and their mapping to DLMS/COSEM application services, profile‑specific service parameters and operational constraints necessary for interoperable meter communications. It is restricted to communication‑profile aspects and complements other parts of the IEC 62056 series that define the COSEM data model and application layer.

Key topics and requirements

• Definition of the 3‑layer profile model (physical, data link and transport/application mapping for DLMS/COSEM).
• HDLC connection‑oriented data link framing and parameterization (frame types, sequence numbers, windowing/flow control).
• Identification and addressing schemes for meter and concentrator nodes within the profile.
• Service mapping between the DLMS/COSEM application layer and the underlying profile services (service primitives and parameters).
• Configuration and management of communication parameters (timeouts, retries, link setup/teardown).
• Specific considerations and constraints for reliable operation in targeted environments (e.g., link quality, interoperability requirements).
• Conformance requirements to ensure interoperability with other IEC 62056 parts and national adoptions.

These topics reflect the profile’s goal of providing a robust, interoperable link layer and service mapping for DLMS/COSEM deployments over HDLC.

Typical use and users

Primary users include utility communications engineers, electricity meter manufacturers, firmware and middleware developers implementing DLMS/COSEM stacks, test and certification laboratories, and system integrators deploying metering and data collection networks. The profile is used where a connection‑oriented HDLC link is required between metering devices and head‑end systems.

Related standards

IEC 62056-7-6:2013 is one part of the IEC 62056 DLMS/COSEM suite. Closely related parts and documents include IEC 62056-5-3 (DLMS/COSEM application layer), IEC 62056-6-1 (OBIS/Object Identification), IEC 62056-7-3 and -7-5 (other communication profiles for local and neighbourhood networks), IEC 62056-21, IEC 62056-42 and IEC 62056-46 (physical and data link layer references and national/adopted EN versions). Implementers should consult these parts together for a complete DLMS/COSEM implementation.

Keywords

DLMS, COSEM, HDLC, communication profile, electricity metering, IEC 62056, connection‑oriented, data link, addressing, interoperability, OBIS.

FAQ

Q: What is this standard?

A: IEC 62056-7-6:2013 is the DLMS/COSEM 3‑layer, connection‑oriented HDLC communication profile specification for electricity metering data exchange.

Q: What does it cover?

A: It covers the structure of a 3‑layer profile using HDLC as the connection‑oriented data link, identification and addressing, supported services and their mapping to DLMS/COSEM application services, and profile‑specific parameters and constraints for interoperable communications.

Q: Who typically uses it?

A: Utilities, meter manufacturers, firmware/middleware developers, test labs and system integrators implementing or validating DLMS/COSEM communications over HDLC links.

Q: Is it current or superseded?

A: The 2013 edition (Ed.1.0) is the published IEC base document. Users should check national adoptions or later IEC 62056 publications for updates or newer related parts; as of the base publication entry the document is recorded as the 2013 edition.

Q: Is it part of a series?

A: Yes — it is part of the IEC 62056 DLMS/COSEM suite (multiple parts address application layer, OBIS, other communication profiles, physical and data link services). Implementers normally use several IEC 62056 parts together.

Q: What are the key keywords?

A: DLMS, COSEM, HDLC, connection‑oriented, metering communication profile, IEC 62056, addressing, interoperability, OBIS.