Wireless M-Bus platform targets the European smart meter market

April 07, 2015 // By Jean-Pierre Joosting
Comprising a wireless M-Bus stack, starter kits, and a set of wireless MCU, transceiver and 32-bit MCU options, the first complete Wireless M-Bus platform from Silicon Labs is designed to simplify the development of wirelessly connected smart meters for electricity, gas, water and heat resources in the European market.

The smart metering platform includes the Wireless M-Bus software stack and wireless starter kits to speed time to market. The platform is portable across the company’s wide array of "energy-friendly" ARM-based microcontrollers (MCUs) and sub-GHz wireless ICs, and it supports all modes for smart metering in Europe including the 169 MHz N modes.

The open Wireless M-Bus protocol provides an established wireless connectivity system for smart metering and smart grid applications. Based on the EN13757-4/3 European standards, Wireless M-Bus specifies seamless sub-GHz RF communication between smart utility meters, data concentrators, mobile readout devices and heat cost allocators.

Wireless smart meter applications require long life for battery-powered meters such as water, gas and heat meters. To address this need, the Wireless M-Bus protocol requires very little overhead for the small amounts of data used by meters, enabling battery life of up to 15-20 years. Proven over the past several years in field tests and deployments in many countries, Wireless M-Bus has become a widely accepted standard for smart metering in Europe.

The Wireless M-Bus platform covers all region-specific requirements throughout Europe. The software stack complies with the Wireless M-Bus specification (EN13757-4), the Wireless M-Bus Application Layer (EN13757-3) and the Application Layer of the Open Metering System (OMS) Group. The stack supports a wide range of modes at 868 MHz and 169 MHz, from the physical layer to the application layer. Supported modes include T1, T2, S1, S1-M, S2, C1, C2, N1 and N2 (a-g), with ultra-fast preamble detection for the N modes without sacrificing RF performance.