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Introduction
890USE19600 April 2004 13
About INTERBUS
Introduction INTERBUS implements a master/slave network model. It can communicate with up
to 512 nodes over a distance of 12.8 km, and can read 1024 inputs and write 1024
outputs in 4 ms.
Each network slave has an in connector for receiving data and an out connector for
transmitting data on the ring. The last device automatically closes and terminates
the network ring; sometimes this last device has no out connector.
Components of a simplified INTERBUS network are shown below:
1 PC/PLC
2 slave device
3 Advantys STB island with INTERBUS NIM at the head
4 slave device
5 INTERBUS network cable
6 in connection (receive)
7 out connection (transmit)
INTERBUS Club is the supporting trade association that creates specifications for
INTERBUS networks and devices. For more on INTERBUS specifications and
mechanisms, refer to www.interbusclub.com.