Overview
IEC TS 62056-8-20:2016 is a technical specification developed by the International Electrotechnical Commission (IEC). It defines a mesh communication profile within the DLMS/COSEM suite for electricity metering data exchange, specifically tailored for smart metering systems where Neighbourhood Networks (NN) are built on mesh network topologies.
This standard extends and adapts existing UDP/IP communication frameworks, enabling efficient, reliable, and scalable interaction between devices in large-scale Advanced Metering Infrastructure (AMI) deployments. With its focus on supporting IPv6-based communication, IEC TS 62056-8-20 addresses the unique challenges of mesh networking, such as device mobility, dynamic addressing, and robust group management.
Key Topics
-
DLMS/COSEM Communication Profile for Mesh Networks
- Adaptation of UDP/IP protocols for mesh environments
- Support for IPv6 to enable large-scale device connectivity
-
Efficient Large-Scale AMI Operations
- Mechanisms for reliable device identification and connectivity even as devices move or change IP addresses
- Support for dynamic registration and address management
-
Secure and Flexible Data Exchange
- Advanced security features at the application layer
- Capability to organize devices into groups for selective broadcasting and controlled responses
-
Protocol Layer Interoperability
- Use of existing open standards (such as 6LoWPAN and RPL) to ensure flexibility in physical and MAC layer choices
- Focus on connectionless UDP transport; TCP is not supported in mesh profile
Applications
IEC TS 62056-8-20 plays a critical role in the creation and operation of smart metering systems and integrated AMI solutions, enabling:
- Scalable Meter Data Collection: Supports large urban or rural deployments where meters and smart devices form self-healing, resilient mesh networks, ensuring reliable data aggregation by central Head End Systems (HES).
- Flexible Device Integration: Facilitates communication with a variety of utility meters (electricity, water, gas, heat) and smart end-devices, whether directly connected to the mesh or through local gateways.
- Dynamic Network Management: Provides mechanisms for automatic device registration, address update, and mobility management, essential for networks where devices join, leave, or move between mesh segments.
- Secure Utility Communications: Implements security functions to guard application layer communications, supporting privacy and integrity in meter reading and control signals.
- Utility Automation and Control: Allows group broadcasting with selective device response, useful for network-wide commands such as tariff changes, load control, or firmware updates.
Related Standards
IEC TS 62056-8-20 is part of the broader IEC 62056 DLMS/COSEM suite of standards, which together provide a comprehensive reference for smart metering data exchange. Related key standards include:
- IEC 62056-1-0: Smart metering standardization framework
- IEC 62056-4-7: Transport layer for IP networks
- IEC 62056-5-3: Application layer specification
- IEC 62056-6-1 and 6-2: Object Identification System (OBIS) and COSEM interface classes
- IEC 62056-9-7: Communication profile for TCP-UDP/IP networks (precursor and reference for mesh adaptation)
- IETF RFCs: Including RFC 2460 (IPv6), RFC 768 (UDP), RFC 4944 and RFC 6282 (6LoWPAN for efficient IPv6 over low-power networks), and RFC 6550 (RPL routing protocol for mesh networks)
Practical Value
By implementing IEC TS 62056-8-20, utilities and technology providers benefit from:
- Interoperable Smart Metering Systems that scale efficiently using mesh technology
- Resilient, reliable data collection for billing, analytics, and grid management
- Support for evolving network technologies while maintaining compliance with DLMS/COSEM architectures
- Improved operational efficiency through simplified management and remote upgrade capabilities
IEC TS 62056-8-20:2016 enables future-ready, standardized smart grid communications in complex neighbourhood mesh environments, supporting global efforts toward more intelligent, flexible, and secure electricity distribution.