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Interbus

General

The INTERBUS was developed by the company Phoenix Contact. The specification has been popular since 1987 and INTERBUS components are available from over 200 manufacturers.

INTERBUS is a fast, universal and open sensor/actuator bus system with one master and several slaves. Data transmission rate and expansion of the bus are independent of one and other. The gross data transmission rate is 500kBit/s, the net data transmission rate is 300kBit/s. For special applications with fiber-optic cable data transmission rates of 2Mbit/s are possible. The number of users is limited to 512.

Structure

The data transfer is done using the shift register with sum framework protocol (in a data cycle all data is shifted through the ring).

An INTERBUS system conforms to a ring structure. A compact strand following one direction in the system is used for the bus connection. Beginning at the master (PLC or IPC) the bus system connects the respective control or computer systems to the peripheral input and output modules. The main line of the system is called the remote bus and bridges distances up to 12.8 km between peripheral stations. From the remote bus, branch lines are possible. These branches can be either be an installation remote bus or a local bus.

Last changes: 25.05.2010