IEC 62056-8-12:2023

Overview

IEC 62056-8-12:2023 is an internationally recognized standard published by the International Electrotechnical Commission (IEC) that establishes a communication profile for Low-Power Wide Area Networks (LPWANs) within the DLMS®/COSEM suite. This standard specifies how the COSEM data model and the DLMS®/COSEM application layer can be utilized over a variety of LPWAN technologies-primarily focusing on LoRaWAN-by deploying an adaptation layer based on IETF RFC 8724 (SCHC: Static Context Header Compression and Fragmentation).

LPWAN technologies support smart metering solutions by offering extended coverage, low bandwidth, minimal packet size, and enabling long battery life in field devices. IEC 62056-8-12:2023 enables reliable, standardized electricity metering data exchange over such wireless IoT networks, facilitating seamless integration with modern smart grid infrastructure.

Key Topics

• DLMS®/COSEM over LPWAN: Defines how the widely used DLMS/COSEM protocols for energy metering communicate effectively over LPWAN technologies.
• Adaptation Layer (IETF RFC 8724): Incorporates SCHC, which enables header compression/decompression and optional fragmentation/reassembly. This ensures efficient operation on networks with small data packet limitations and constrained bandwidth.
• Connectionless Transport Layer: Relies on standard Internet protocols-User Datagram Protocol (UDP) and Internet Protocol version 6 (IPv6)-to support scalable, robust data exchange.
• Security: Application layer security mechanisms as defined in the DLMS®/COSEM suite remain applicable. Additional security at lower layers may be implemented per the chosen LPWAN technology but are outside the scope of this document.
• Profile Structure: Follows rules and guidelines defined in associated IEC standards (e.g., IEC 62056-5-3, IEC 62056-1-0, and IEC TS 62056-1-1).
• Technology Compatibility: While focusing on LoRaWAN, the profile applies to any LPWAN technology conforming to IETF RFC 8724.

Applications

IEC 62056-8-12:2023 delivers practical value to a wide range of smart metering and IoT applications, including:

• Smart Electricity Metering: Enables automated data exchange between utility meters and back-end systems over long distances in urban and rural environments, reducing the need for manual meter reading.
• IoT Devices Integration: Facilitates secure, reliable connectivity for battery-powered field devices (e.g., water, gas, or heat meters, sensors) using standardized communication methods.
• Smart Grid Deployments: Supports the remote monitoring, configuration, and diagnostics of distributed assets, essential for energy management and optimization.
• Utility Networks: Optimizes network infrastructure by leveraging lightweight protocols suitable for large-scale deployment of resource-constrained devices.

By ensuring efficient use of bandwidth and power, the standard lowers operational costs and extends device life, crucial advantages for utility service providers and IoT solution integrators.

Related Standards

Consider IEC 62056-8-12:2023 alongside the following key standards for a robust, interoperable electricity metering solution:

• IEC 62056-1-0 - DLMS®/COSEM smart metering standardization framework
• IEC TS 62056-1-1:2016 - Template for DLMS®/COSEM communication profile standards
• IEC 62056-4-7:2015 - DLMS®/COSEM transport layer for IP networks
• IEC 62056-5-3:2023 - DLMS®/COSEM application layer
• IEC 62056-6-1, IEC 62056-6-2:2023 - Object Identification System (OBIS) and COSEM interface classes
• IEC 62056-9-7:2013 - Communication profile for TCP-UDP/IP networks
• IETF RFC 8724 - SCHC: Static Context Header Compression and Fragmentation
• IETF RFC 8376 - LPWAN technology overview

By aligning implementation with these internationally harmonized standards, organizations ensure reliability, security, and future-proof interoperability across diverse metering infrastructures.

Keywords: IEC 62056-8-12:2023, smart metering, LPWAN, LoRaWAN, DLMS COSEM, electricity metering data exchange, IETF RFC 8724, SCHC compression, IoT, UDP IPv6, smart grid, utility data communication