OMS is the only open and standardized energy metering system that integrates the consumption values of all energy sectors into one system: Electricity, gas, thermal energy, water – in metering as well as submetering. In addition, OMS is compatible with the international communication standard for building technology KNX.

The open metering system of the Open Metering System Group e.V. stands for a manufacturer- and media-independent standardization for Meter-Bus (M-Bus) based communication between utility meters (electricity, gas, water, thermal energy), submetering (cold/hot water, thermal energy, heat cost allocators), and systems in the field of smart meters.

The OMS specification currently consists of 3 parts that describe and define the essential properties of an Automatic Meter Readout (AMR) system in accordance with the OMS communication standard.

The Open Metering System (OMS) is the only system definition across Europe which integrates all media (electricity, gas, heat and water incl. submetering) into one system. It was developed by the industry to guarantee a future-proof communication standard and interoperability between all meter products. Who is the OMS group?

Would you like to stand out from the competition and have independent confirmation that your products comply with OMS specifications as well as national and international standards? Get certified and demonstrate conformance and reliability of your products on the market! Manufacturer: Allmess GmbH. Generation: 4. Security Profil: B.

M-Bus (Meter-Bus) is a European standard (EN 13757-2 physical and link layer, EN 13757-3 application layer) for the remote reading of water meter, gas or electricity meters. M-Bus is also usable for other types of consumption meters.

Interface capabilities to different types of meter; Support IEC 62056-21 and COSEM HDLC DLMS protocols (not just limited to electricity meters) Support serial (RS-232, RS-485) and ethernet interfaces; Backwards compatibility with standard OMS and pulse meter outputs

Wireless M-bus /OMS is the only open and cross-vendor communication standard for smart metering based on European / international standards. Wireless M-Bus / OMS integrates all media cross-divisional (electricity, gas, thermic energy, water including sub metering) and is based on the EN 13757-4 standard.

OMS wireless M-Bus (wM-Bus) is a European open standard (EN 13757) that integrates all meters and sensors into one system with full interoperability. Lansen supports the OMS specification for both Wireless M-Bus & wired M-Bus.

OMS ist das einzige offene und standardisierte Energie-Messsystem, das die Verbrauchswerte aller Energiesparten in ein System integriert: Elektrizität, Gas, thermische Energie, Wasser – im Metering sowie Submetering. Zusätzlich ist OMS mit dem internationalen Kommunikationsstandard für Gebäudetechnik KNX kompatibel.