Product overview
BK11x0, BK1250
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Version: 4.1
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Product overview
3.1
Introduction
EtherCAT coupler for K-bus Terminals
BK1120, BK1150
Fig. 9: Bus Couplers BK1120 and BK1150
The Bus Couplers BK1120 and BK1150 connect EtherCAT with the tried and tested Beckhoff K-bus
terminals (KLxxx). A station consists of a BK1120 / BK1150 Bus Coupler, any number of K-bus terminals (up
to 64, or up to 255 with K-bus extension) and a bus end terminal. The Bus Coupler recognizes the connected
terminals and automatically allocates them into the EtherCAT process image. The Bus Coupler is connected
to the network via the upper Ethernet interface. The lower RJ45 socket may be used to connect further
EtherCAT devices in the same segment. In the EtherCAT network, the BK1120 / BK1150 Bus Coupler can
be installed anywhere in the Ethernet signal transfer section (100BASE-TX) – except directly at the switch.
The Bus Couplers BK9000 (for K-bus terminals) and EK1000 (for E-bus terminals) are suitable for
application at the switch.
