I/O-Modules
Fieldbus Terminals
ControlNet - Coupler

The bus coupler BK7000 connects the ControlNet bus system with the electronic terminal blocks, which can be extended in modular fashion. One unit consists of one bus coupler, any number from 1 to 64 terminals and one end terminal.

The bus coupler recognises the connected terminals and automatically generates the affiliations of the inputs/outputs to the bytes of the process image. The first input/output signal is inserted in the first bit of one wort (LSB), beginning from the left. The bus coupler inserts further signals in this wort. Inputs and outputs are clearly separated. The bus coupler automatically begins a further wort if the number of inputs or outputs exceeds 16 bits

ControlNet has been an open fieldbus system since 1997. The ControlNet system has a bus structure, and up to 99 stations can be operated in one system. Transmission speed is 5 MBit/s, and Coax cables are used as the data transfer medium. The ControlNet protocol allows both cyclic and non cyclic data to be exchanged via the bus without cross-influence between them. The bus coupler BK7000 supports the use of redundant bus cables and has an integrated Network Access Port (NAP) for the direct connecting of ControlNet tools.

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Copyright © 2000 TRS Fieldbus Systems, Inc. All rights reserved.
Revised: June 28, 2000 .