Open Metering System
Encyclopedia
The Open Metering System OMS stands for a manufacturer and utilities independent standardization for Meter-Bus
based communication between utility meters (electricity, gas, water, district heat, heat cost allocators
) and systems in the field of Smart meter
.
, several German multi utilities companies (public utility offering more than only one type of supply like electricity, gas, water and district heat) joined and asked international manufacturers of revenue meters to create a common standard. The goal was to have meters with standardized communication interfaces and systems in the future. On the side of meter manufacturers there were mainly the members of the technical associations in Germany FIGAWA (German Association for Gas and Water) and ZVEI (German Electrical and Electronics Industry Association), but also several other internationally operating companies joined to create a bundle of common definitions and specifications based on the European Meter-Bus
standard (EN 13757) as well as the Dutch NTA 8130.
The resulting specification documents are written in English whereas the content of this article originates from German Wikipedia
standard series (EN 13757) was selected, definitions were made were selections or ambiguities were possible, to streamline the interpretation by different producers. In addition the encryption using the AES 128 standard has been introduced as a requirement for all wireless and Power line communication
based communication channels.
Meter-Bus
M-Bus is a European standard for the remote reading of gas or electricity meters. M-Bus is also usable for other types of consumption meters. The M-Bus interface is made for communication on two wire, making it very cost effective...
based communication between utility meters (electricity, gas, water, district heat, heat cost allocators
Heat cost allocator
Heat cost allocators are devices attached to individual radiators in buildings that measure the total heat output of the individual radiator. Heat cost allocators can be either electronic, where an electronic sensor is used to calculate the heat consumption, and evaporative, where a special,...
) and systems in the field of Smart meter
Smart meter
A smart meter is usually an electrical meter that records consumption of electric energy in intervals of an hour or less and communicates that information at least daily back to the utility for monitoring and billing purposes. Smart meters enable two-way communication between the meter and the...
.
Background
With the starting point of the smart metering initiative driven by the European UnionEuropean Union
The European Union is an economic and political union of 27 independent member states which are located primarily in Europe. The EU traces its origins from the European Coal and Steel Community and the European Economic Community , formed by six countries in 1958...
, several German multi utilities companies (public utility offering more than only one type of supply like electricity, gas, water and district heat) joined and asked international manufacturers of revenue meters to create a common standard. The goal was to have meters with standardized communication interfaces and systems in the future. On the side of meter manufacturers there were mainly the members of the technical associations in Germany FIGAWA (German Association for Gas and Water) and ZVEI (German Electrical and Electronics Industry Association), but also several other internationally operating companies joined to create a bundle of common definitions and specifications based on the European Meter-Bus
Meter-Bus
M-Bus is a European standard for the remote reading of gas or electricity meters. M-Bus is also usable for other types of consumption meters. The M-Bus interface is made for communication on two wire, making it very cost effective...
standard (EN 13757) as well as the Dutch NTA 8130.
The resulting specification documents are written in English whereas the content of this article originates from German Wikipedia
The Specification
Concerning the created Open Metering System Specification (OMS specification or OMSS) a subset out of the existing Meter-BusMeter-Bus
M-Bus is a European standard for the remote reading of gas or electricity meters. M-Bus is also usable for other types of consumption meters. The M-Bus interface is made for communication on two wire, making it very cost effective...
standard series (EN 13757) was selected, definitions were made were selections or ambiguities were possible, to streamline the interpretation by different producers. In addition the encryption using the AES 128 standard has been introduced as a requirement for all wireless and Power line communication
Power line communication
Power line communication or power line carrier , also known as power line digital subscriber line , mains communication, power line telecom , power line networking , or broadband over power lines are systems for carrying data on a conductor also used for electric power transmission.A wide range...
based communication channels.
Standardization
The outcoming results were entered in the European standardization organization and is currently being discussed as an adoption or extension of EN 13757. The OMS specification documents are written in English and available to the public for free.External links
- openmetering.org download of English documents Open Metering System specification by ZVEI, FIGAWA and KNX (homepage itself is currently in German)
- zvei.de
- figawa.de
- knx.org