OMS® v4.5.1 / wM-Bus for Gateways
Single Stack
Gateway
Compliant to EN 13757-3/-4/-7 (Wireless) M-Bus and OMS® Specification
Twenty end devices can be connected to one gateway device.
Bidirectional as well as unidirectional communication possible.
Pre-certification on reference hardware platform.
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Commercial Features
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Professional first‑level support from experts in embedded connectivity – quick, efficient, and ready to help.Quality Product
Our protocol stacks undergo extensive testing, ensuring proven reliability across various IoT applications worldwide.Easy commissioning
Thanks to our modular, standardized software solutions, configuring embedded systems is simple and hassle‑free.Warranty & Maintenance
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OMS® v4.5.1 / wM-Bus for Gateways
The OMS® Stack for Gateway Devices plays a central role within a smart metering network. It enables data transmission from numerous meters and sensors and allows the device to manage a large number of connections simultaneously.
The OMS® v4.5.1 stack implements all the protocol elements required for Wireless M-Bus compliance. It also covers a large part of the options and features specified in EN 13757 and its sub-standards, with a focus on the most commonly used options and features.
Version 4.5.1 of the OMS® Stack offers several new features and you can be sure that you are equipping your products with a proven and constantly evolving software solution.
Your benefits with our Protocol Stack Package
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.
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 timing1
1Features will be implemented in a later product version.
Available for the following hardware platforms
Silicon Labs
- EFR32FG23
- EFR32FG28
STMicroelectronics
- STM32WL3
Technical Information
Supported Specifications
OMS® v.4.5.1 Protocol Stack compliant according
- EN 13757-3/-4/-7
- OMS® Specification
Reference Hardware
- Silicon Labs EFR32FG23: EFR32FG23 BRD2600A REV 01
- Silicon Labs EFR32FG28: EFR32xG28 BRD4001A Rev A01
- STMicroelectronics STM32WL3: Nucleo-WL33CC1
Memory Requirements
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: STMicroelectronics STM32WL3: Nucleo-WL33CC1.
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
Is the source code open or encrypted? Can we make adjustments ourselves?
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.
Our requirements are not fully covered by this stack. Can STACKFORCE make custom modifications?
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.
My preferred hardware is not supported. What can I do?
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.
Can we test our preferred stack before making a decision?
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.
Does STACKFORCE provide support for product certification? If so, how?
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.