The BK9055 couples EtherNet/IP with the vendor’s modular Bus Terminal system, which offers more than 400 different signal types. The Compact Bus Coupler series is characterized by slim housings and cost-optimized design—with the BK9055 priced at just $235, says the vendor. Besides facilitating inexpensive connection of the vendor’s I/O system to EtherNet/IP networks, the BK9055, when used alone, is suitable for star wiring topologies. The BK9055 is also software-compatible with the vendor’s BK9105 EtherNet/IP Bus Coupler, which, unlike the “Compact” version has a second RJ 45 port (2-channel switch), enabling I/O stations to also be configured with a line topology, instead of the classic star topology.
Beckhoff Automation LLC