OMS® v4.5.1 for Gateway Devices

Single Stack 

OMS v4.5.1 for End Devices

Key Features

software compliance

Compliant to EN 13757-3/-4/-7
(Wireless) M-Bus and OMS® Specification

energy consumption

Twenty end devices can be connected
to one gateway device

Unidirectional and bidirectional communication

Bidirectional as well as unidirectional 
communication possible

Pre-certification of software

Pre-certification on reference
hardware platform

Your benefits with our stack package

Stack Package Architecture

Platform Interface available as source code

  • Customization and fine tuning of platform driver​
  • Customization of radio settings (e.g., frequency)

Example application available

Example application allowing an easy start-up of the stack

Customization possibilities

Customization of this OMS® v4.5.1 stack to your 
requirements is possible 

Strengthen the future viability of your devices with this stack

Protocol Stack Features

OMS® v4.5.1

EN 13757-3/-4/-7 (Wireless M-Bus) compliant protocol stack for gateway devices

  • Operation modes S, T or C
  • Encryption modes 5 and 7

Compliant to specification OMS® v4.5.1 by OMS® group, referring to EN 13757

  • Security profiles A or B


  • Security profile D (encryption mode 10)1
  • Enables application to support all use 
  • cases specified by Annex M „Requirements for OMS® use case support“ 
  • Enables optimization of TRX timing

1Feature will be implemented in a later product version.

Technical Information

Technical Specifications

Supported Specifications

  • EN 13757-3/-4/-7 
  • OMS® Specification

Reference Hardware

  • STM32WL3

Memory Requirements


The code sizes described above specify the typical required memory for operating the full featured protocol stack as a library including related drivers. Values based on reference hardware.

Contact us

Commercial Features

First level Support

Software Support

High quality product

Software availability

Easy comissioning & configuration

software configuration

Warranty & maintenance

warranty and maintenance

Do you have Questions? 

We are happy to help you.

Our software products are very complex and even seemingly minor details can influence the scope of development services. For this reason, we would like to talk to you about your project. 

 Get in touch