Meter-Bus - Relation To The OSI Model

Relation To The OSI Model

Since no bus system was available for the requirements of meter reading, the M-Bus was developed by Professor Dr. Horst Ziegler of the University of Paderborn in cooperation with Texas Instruments Deutschland GmbH and Techem GmbH. The concept was based on the ISO-OSI Reference Model, in order to realize an open system which could utilize almost any desired protocol.

Since the M-Bus is not a network, and therefore does not - among other things - need a transport or session layer, the levels four to six of the OSI model are empty. Therefore only the physical, the data link, the network and the application layer are provided with functions.

OSI Model
Data unit Layer Standard
Host
layers
Data 7. Application EN1434-3
6. Presentation Empty
5. Session Empty
Segment/Datagram 4. Transport Empty
Media
layers
Packet 3. Network Optional
Frame 2. Data link IEC 870
Bit 1. Physical M-Bus

Read more about this topic:  Meter-Bus

Famous quotes containing the words relation to the, relation to, relation and/or model:

    Any relation to the land, the habit of tilling it, or mining it, or even hunting on it, generates the feeling of patriotism. He who keeps shop on it, or he who merely uses it as a support to his desk and ledger, or to his manufactory, values it less.
    Ralph Waldo Emerson (1803–1882)

    Science is the language of the temporal world; love is that of the spiritual world. Man, indeed, describes more than he explains; while the angelic spirit sees and understands. Science saddens man; love enraptures the angel; science is still seeking, love has found. Man judges of nature in relation to itself; the angelic spirit judges of it in relation to heaven. In short to the spirits everything speaks.
    HonorĂ© De Balzac (1799–1850)

    There is a certain standard of grace and beauty which consists in a certain relation between our nature, such as it is, weak or strong, and the thing which pleases us. Whatever is formed according to this standard pleases us, be it house, song, discourse, verse, prose, woman, birds, rivers, trees, room, dress, and so on. Whatever is not made according to this standard displeases those who have good taste.
    Blaise Pascal (1623–1662)

    The striking point about our model family is not simply the compete-compete, consume-consume style of life it urges us to follow.... The striking point, in the face of all the propaganda, is how few Americans actually live this way.
    Louise Kapp Howe (b. 1934)