Part Number:

BK9105

Manufacturer: Beckhoff
Series: C69xx IPC Series
  • Rated 4.5 (39 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
    In-Stock, Ships in 3 Days
  • Call for Expedited Shipping and Product Condition Options
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Worldwide Delivery
Repair Options Available

The Beckhoff BK9105 Bus Coupler connects EtherNet/IP with modular terminals, supporting up to 64 terminals. It features two RJ45 ports for data transfer at 10/100 Mbit/s and offers K-bus power supply.

Part Number:

BK9105

Manufacturer: Beckhoff
Series: C69xx IPC Series
  • Rated 4.5 (39 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
    In-Stock, Ships in 3 Days
  • Call for Expedited Shipping and Product Condition Options
Free Ground Shipping
Worldwide Delivery
Repair Options Available

The Beckhoff BK9105 Bus Coupler connects EtherNet/IP with modular terminals, supporting up to 64 terminals. It features two RJ45 ports for data transfer at 10/100 Mbit/s and offers K-bus power supply.

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Product Description

The Beckhoff BK9105 is an EtherNet/IP Bus Coupler designed to integrate modular electronic terminal blocks with EtherNet/IP networks. Manufactured by Beckhoff, a renowned provider of industrial automation systems, the BK9105 streamlines the connection of various terminals to a network, to support up to 64 terminals, and offers the flexibility required for complex automation tasks.

The BK9105 Bus Coupler supports data transfer rates of 10 and 100 Mbit/s and features two RJ45 ports for seamless line or star topology connections. The Bus coupler for EtherNet/IP can manage up to 492 bytes of input and output data to make it suitable for both digital and analog signals. With support for 3,936 digital signals and 122 analog signals, the Beckhoff coupler can handle extensive I/O requirements. The power supply operates on 24 V DC, with a maximum K-bus current of 1750 mA, and the power contacts can handle up to 10 A. The coupler allows cascading of up to 20 units, to ensure that it can cover distances of up to 2 km. The bus coupler also automatically recognizes connected terminals, to simplify the setup and configuration process.

The BK9105 EtherNet/IP Bus coupler is configured via KS2000 software or a compatible controller like TwinCAT, to allow flexible and efficient setup. The IP Bus coupler operates in temperatures ranging from -25 degrees C to +60 degrees C and provides reliability in varying conditions. The Bus coupler also adheres to EMC standards for immunity and emissions, to offer robust protection. The Beckhoff ensures high-quality performance with electrical isolation rated at 500 V and compliance with EN standards for vibration and shock resistance. Our items come with a replacement warranty and can be shipped worldwide.

BK9105 Technical Specifications

Max Terminals: 64 (255 with K-bus extension)
Configuration Software: KS2000
Data Transfer Rates: 10/100 Mbit/s
Digital I/O Signals: 3,936
Analog I/O Signals: 122
Power Supply: 24 V DC (-15%/+20%)
Max Cascading Units: 20 units, 2 km total length
Bus Interface: 2 x RJ45 ports (2-port switch)
Operating Temperature: -25 degrees C to +60 degrees C
Maximum Distance Between Units: 100 meters

Frequently Asked Questions about BK9105


Q: What is the maximum number of terminals for BK9105?

A: The BK9105 supports up to 64 terminals by default. It can be expanded to 255 terminals using the K-bus extension.

Q: Why does the Beckhoff BK9105 use dual RJ45 ports?

A: The BK9105 includes two RJ45 ports to enable line topology. This reduces wiring costs compared to traditional star topology setups.

Q: How does the BK9105 handle digital and analog signals?

A: The BK9105 supports 3,936 digital signals and 122 analog signals. This makes the unit suitable for diverse automation applications.

Q: What is the purpose of the DIP switch in BK9105?

A: The DIP switch on the BK9105 allows manual IP address configuration. It can also obtain the IP automatically through DHCP.

Q: How far apart can two BK9105 units be placed?

A: The maximum distance between two BK9105 units is 100 meters. Up to 20 units can be cascaded for a 2 km total length.

Internal Product Review

  • ‘‘The Beckhoff BK9105 EtherNet/IP Bus Coupler is an excellent choice for industrial automation that requires flexibility. With support for 3,936 digital I/O signals, a 24 V DC power supply, and line topology via dual RJ45 ports, it simplifies both installation and configuration.’’

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