OMS® v4.5.1 / wM-Bus for End Devices
Single Stack
End Device
Bidirectional as well as unidirectional communication possible
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Commercial Features
First Level Support
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
We deliver all our products with clear manufacturer warranties and comprehensive guarantees for maximum reliability.
OMS® v4.5.1 / wM-Bus for End Devices
The OMS® Stack for End Devices is the proven software solution for metering applications from our product portfolio and comes with some new features in OMS® version 4.5.1. The stack implements all the protocol elements required for Wireless M-Bus compliance and 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.
This single stack is optimized for a compromise between small footprint, excellent modularity and scalability, but still rich in features. With the OMS® v4.5.1 Stack, you can be sure to equip your products with a proven and constantly evolving software solution.
Your benefits with our Protocol Stack Package
Application-driven optimization
Optimization of energy consumption and usability of utilities (as e.g., CRC or AES) by application
On-the-fly configuration
Quick stack adaption to different use cases
Short time-to-market
With a directly available OMS® v4.5.1 Standard Stack you shorten your time-to-market significantly
Protocol Stack Features
OMS® v4.5.1
EN 13757-3/-4/-7 (Wireless M-Bus) compliant protocol stack for meter
- 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
- Annex C „Sensor“ compatibility
- 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
NXP
MCXN94+UBX100
Silicon Labs
EFR32FG23
EFR32FG28
STMicroelectronics
STM32WL3
STM32WL5/STM32WLE5
Technical Information
Supported Specifications
OMS® v.4.5.1 Protocol Stack compliant according
- EN 13757-3/-4/-7
- OMS® Specification
Reference Hardware
- NXP MCXN94+UBX100: NXP MCXN94 + NXP UBX100
- Silicon Labs EFR32FG23: EFR32FG23 BRD2600A REV 01
- Silicon Labs EFR32FG28: EFR32xG28 BRD4001A Rev A01
- STMicroelectronics STM32WL5/WLE5: Nucleo-WL55JC
- 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
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.