Wired M-Bus / OMS® v4.5.1 for Slave Devices

Single Stack

Slave

Compliant to EN 13757-2/-3/-7 (Wired) M-Bus and OMS® Specification

Enables remote readout of meter devices

Reliable and efficient data transmission for your M-Bus networks

Seamless integration with existing systems

Wired M-Bus / OMS® v4.5.1 for Slave Devices

The Wired M-Bus Protocol Stack for Slave Devices offers a powerful, wired solution for seamless data transmission to M-Bus networks. Designed for applications such as consumption metering, it ensures reliable and efficient communication, making it an excellent choice for environments that demand consistent and secure data exchange.

With a straightforward master-slave communication model, implementation is remarkably simple, allowing for easy integration into existing systems.

Fully compliant with EN 13757-2/-3/-7 standards and supporting the OMS® Specification v4.5.1, the Wired M-Bus Protocol Stack meets the latest requirements for wired M-Bus communication.

Your benefits with our Protocol Stack Package

OMS® implementation

OMS® implementation of the Wired M-Bus stack is a great base for interoperable devices

Example application available

Example application allowing an easy start-up of the stack

Use with other embedded operating systems possible

Support for use in conjunction with common embedded operating systems (OS), such as Free RTOS or OS-less (bare metal)

Protocol Stack Features

Wired M-Bus / OMS® v4.5.1

EN 13757-2/-3/-7 (Wired M-Bus) and OMS® Specification 4.5.1 compliant Protocol Stack for Slave devices:

  • Interference-free data transmission via cable
  • Supported message types TX (Slave – Master):
    • RSP-UD
    • ACK
  • Supported message types RX (Master – Slave):
    • SND-UD
    • REQ-UD2
    • REQ-UD1
    • SND-NKE
  • Slave addressing according to EN13757-7 (2018)
  • Baud rate change by CI-Fields according to EN13757-3 (2018)

Available for the following hardware platforms

STMicroelectronics

STM32L0

Technical Information

Supported Specifications

Wired M-Bus / OMS® v.4.5.1 Protocol Stack compliant according

  • EN 13757-2/-3/-7
  • OMS®​​​​​​ Specification

STMicroelectronics STM32L0: STM B-L072Z-LRWAN1

The code sizes described above indicate the typical memory requirements for operating the fully equipped protocol stack as a library, including associated drivers. The values are based on the specified reference hardware STM B-L072Z-LRWAN1.

Frequently asked Questions

What is included in the STACKFORCE software package?

Our Protocol Stack package includes everything you need for integration:

  • Precompiled stack library
  • Hardware-specific drivers
  • Serial interface (UART, SPI, etc.)
  • Power management
  • Example applications for quick integration
  • Documentation

The Protocol Stack itself is delivered as object code and cannot be directly modified. The platform interface (including HAL and RF driver integration) is provided as source code. This allows you to:

  • Adapt the platform driver to your target hardware
  • Configure specific radio settings such as frequencies
  • Optimize driver behavior
  • Add your own components such as security and timers

For further adjustments to the stack itself, we are happy to support you with specific development services.

Yes, that’s possible. In addition to our standard solutions, we offer customer-specific extensions of our Protocol Stacks. This enables us to implement your specific requirements so that the stack integrates seamlessly into your system environment.

We are happy to check compatibility with your specific hardware. If your hardware meets the minimum requirements for running a Protocol Stack, porting is generally possible. We can discuss the porting effort with you or provide our Platform Porting Guide so you can perform the porting yourself.

Yes. You can request a free evaluation license and test the software in your target environment – without obligation and risk-free. More information about the evaluation offer can be found on our website under: Evaluation License.

STACKFORCE uses a multi-stage testing process to ensure high software quality. This includes:

  • Unit, module, and firmware tests to check the functionality and stability of individual components
  • Static code analysis to detect errors and vulnerabilities at an early stage
  • Automated system tests on simulated and real hardware
  • Regression tests to ensure that existing functions continue to work reliably and that no new errors are introduced

License selection

Your hardware manufacturer is not listed?

Contact us – together we will make your project a success.

Commercial Features

Professional first‑level support from experts in embedded connectivity – quick, efficient, and ready to help.

Our protocol stacks undergo extensive testing, ensuring proven reliability across various IoT applications worldwide.

Thanks to our modular, standardized software solutions, configuring embedded systems is simple and hassle‑free.
We deliver all our products with clear manufacturer warranties and comprehensive guarantees for maximum reliability.