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.
|