Specification and Functionality of Wireless M‑Bus
Wireless M‑Bus is defined in the European standard EN 13757, which specifies frequency usage in the 868 MHz band. Through the OMS specification, additional frequency bands—such as 433 MHz for South America, Australia and the Middle East—are enabled. This makes wM‑Bus a globally relevant technology, not just a European one.
Although the EN 13757 family offers extensive features and options, not all combinations are practical or fully defined. For this reason, the internationally oriented OMS specification is recommended as the primary reference. OMS continuously expands its specification to include new technologies and application scenarios, ranging from classical Smart Metering to modern IoT sensor networks.
Key Advantages of Wireless M‑Bus
Wireless M‑Bus offers several strengths that make it an exceptional fit for metering and IoT applications:
- Energy efficiency: Ideal for battery-powered devices with operational lifetimes lasting several years.
- Flexible communication, supports both:
- unidirectional transmission (reading consumption data only) and
- bidirectional communication (writing values, querying functions).
- High scalability: A star topology allows hundreds of meters or sensors to communicate with a single data collector.
- Interoperability: Standardized protocols and data formats ensure seamless integration of devices from different manufacturers.
Wireless M-Bus Protocol Stack by STACKFORCE
The STACKFORCE Wireless M‑Bus Protocol Stack implements all protocol elements required for full standards compliance—along with the most important optional features. Our development team continuously optimizes the stack to guarantee:
- exceptionally low power consumption
- a modular, scalable architecture
- extensive feature support for diverse applications
All Wireless M-Bus Stacks
How Wireless M‑Bus works
Capabilities and range
Once a meter or sensor is equipped with Wireless M‑Bus, measurement data becomes available almost instantly—ranging from absolute consumption values to real‑time metrics such as flow rate, temperature or power.
Typical ranges vary depending on the environment:
- Rural areas: several kilometers
- Urban environments: several hundred meters
- Inside buildings: a few meters
To improve indoor penetration and connect deeply embedded devices, the STACKFORCE wM‑Bus Stack can be combined with LPWAN technologies such as LoRaWAN® or mioty®. This hybrid approach significantly enhances coverage and reliability.
Integrating wM‑Bus into Devices
With a compatible microcontroller and radio chip, your devices can be made Wireless M‑Bus‑capable. STACKFORCE supports you with:
- protocol stack integration
- connection to meters or sensors
- ensuring interoperability and reliable data transmission
Thanks to extensive experience with Wireless M‑Bus, our customers benefit from professional support, reduced development effort and shorter time‑to‑market.
Why using a ready‑made wM‑Bus Stack makes sense
In‑house development of communication stacks is often time‑consuming and cost‑intensive. With a ready‑to‑use STACKFORCE Protocol Stack, you benefit from:
- immediately deployable software
- extensively tested functionality
- predictable licensing costs
- professional support and optional service packages
The result: competitive, easy‑to‑install and easy‑to‑maintain devices.
If you want to dive deeper, read our upcoming article on the technical details of our OMS®/wM‑Bus Stack package: What’s included? Which standards are implemented? What are the hardware requirements?
