BK3150

BECKHOFF

BECKHOFF BK3150 PROFIBUS Compact Bus Coupler

SKU BK3150

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: BECKHOFF
  • Product No.: BK3150
  • Origin Germany
  • Product Type: PROFIBUS Bus Couplers
  • Payment: T/T, Western Union
  • Weight: 1.0 kg
  • Shipping port: Xiamen
  • Warranty: 12 months

Tags

BECKHOFF Bus Terminals PROFIBUS Bus Couplers
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Product Description

Description

The BECKHOFF BK3150 is a cost-optimized, space-saving PROFIBUS Compact Bus Coupler designed to integrate Beckhoff Bus Terminals directly into PROFIBUS DP networks. Operating as a decentralized fieldbus slave, this compact unit establishes a reliable bridge between the high-speed PROFIBUS fieldbus system and local KL-series and KS-series Bus Terminals (K-bus).

Housed in a compact enclosure, the BECKHOFF BK3150 automates the detection of baud rates up to 12 Mbaud, facilitating direct integration into existing industrial setups. Its design makes it highly suitable for applications where space in control cabinets is limited but reliable, deterministic modular I/O communication is required.

Features

  • Cost-optimized and compact housing design for efficient space utilization.
  • Direct connection to PROFIBUS DP fieldbus systems.
  • Supports up to 64 Bus Terminals in a standard configuration, and up to 255 Bus Terminals using a terminal bus extension.
  • Automatic baud rate detection up to a maximum of 12 Mbaud.
  • Integrated RS485 physical interface using a standard D-sub connection.
  • Reliable mounting mechanism utilizing a standard 35 mm DIN rail.

Applications

  • Decentralized industrial control systems utilizing PROFIBUS DP architectures.
  • Machine tool automation and manufacturing production lines.
  • Control cabinet installations with strict physical space constraints.
  • Distributed data acquisition and digital/analog signal concentration.

Technical Specifications

Parameter Specification
Manufacturer BECKHOFF
Model BK3150
Product Type PROFIBUS Compact Bus Coupler
Fieldbus Interface PROFIBUS DP / DP-V1
Physical Layer RS485
Data Transfer Rate Automatic detection up to 12 Mbaud
Bus Interface Connection 1 x D-sub 9-pin socket
Number of Bus Terminals 64 (up to 255 with terminal bus extension)
Nominal Supply Voltage 24 V DC (-15% / +20%)
K-bus (Terminal Bus) Connection Integrated mechanical lock with slot and key connection
Mounting Method 35 mm DIN rail (EN 60715) with structural latch

Connections / Interfaces

Interface Function
D-Sub 9-pin socket PROFIBUS DP RS485 network connection
Power Supply Terminals 24 V DC system supply input and ground connection
K-bus Interface Lateral contact surface for modular Bus Terminal communication

Installation Guidelines

  1. Ensure the entire industrial control system is completely de-energized before beginning installation, modification, or wiring.
  2. Mount the BECKHOFF BK3150 securely onto a clean, grounded 35 mm DIN rail conforming to EN 60715, ensuring the locking slide is firmly engaged.
  3. Attach the required KL/KS series Bus Terminals sequentially onto the DIN rail, sliding them side-by-side into the coupler until the lateral slot-and-key connections are fully interlocked.
  4. Connect the PROFIBUS network cable to the integrated 9-pin D-sub socket. If the coupler is positioned at either physical end of the PROFIBUS segment, ensure a standard active bus termination resistor is switched on at the connector.
  5. Wire the 24 V DC nominal power supply to the appropriate supply terminal contact points.
  6. Set the specific node address on the rotary address switches prior to commissioning the network.

Replacement Recommendations

When replacing an active BECKHOFF BK3150 unit in an existing PROFIBUS installation, document and record the current settings of the rotary address switches before removing the original coupler. Reconfigure the rotary switches on the replacement unit to match the original settings exactly before powering up the system to ensure correct identification by the PROFIBUS master controller.

Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
FAQ
What is the primary function of the BECKHOFF BK3150?
The BECKHOFF BK3150 is a PROFIBUS Compact Bus Coupler designed to connect modular Beckhoff Bus Terminals (KL/KS series) directly to a PROFIBUS DP fieldbus network, acting as a decentralized slave station.
How many Bus Terminals can be connected to a BECKHOFF BK3150?
The BECKHOFF BK3150 supports up to 64 Bus Terminals in a standard configuration, and can support up to 255 Bus Terminals when using a terminal bus (K-bus) extension.
What fieldbus speeds does the BECKHOFF BK3150 support?
The BECKHOFF BK3150 supports baud rates up to a maximum of 12 Mbaud, with automatic baud rate detection implemented internally to conform to the PROFIBUS DP network speed.
What type of connector is used for the network interface on the BECKHOFF BK3150?
The BECKHOFF BK3150 utilizes a standard 9-pin D-sub female socket for connecting the physical RS485 PROFIBUS network cable.
How is the fieldbus node address set on the BECKHOFF BK3150?
The node address for the BECKHOFF BK3150 on the PROFIBUS network is configured manually using the physical address switches located on the front of the compact housing.
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BECKHOFF BK3150 PROFIBUS Compact Bus Coupler

Only 10 item(s) left in stock

  • Manufacturer: BECKHOFF

  • Product No.: BK3150

  • Country of origin:Germany

  • Product Type: PROFIBUS Bus Couplers

  • Payment: T/T, Western Union

  • Weight: 1000g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Description
FAQ
Shipping Returns
Additional details
Reviews

Description

The BECKHOFF BK3150 is a cost-optimized, space-saving PROFIBUS Compact Bus Coupler designed to integrate Beckhoff Bus Terminals directly into PROFIBUS DP networks. Operating as a decentralized fieldbus slave, this compact unit establishes a reliable bridge between the high-speed PROFIBUS fieldbus system and local KL-series and KS-series Bus Terminals (K-bus).

Housed in a compact enclosure, the BECKHOFF BK3150 automates the detection of baud rates up to 12 Mbaud, facilitating direct integration into existing industrial setups. Its design makes it highly suitable for applications where space in control cabinets is limited but reliable, deterministic modular I/O communication is required.

Features

  • Cost-optimized and compact housing design for efficient space utilization.
  • Direct connection to PROFIBUS DP fieldbus systems.
  • Supports up to 64 Bus Terminals in a standard configuration, and up to 255 Bus Terminals using a terminal bus extension.
  • Automatic baud rate detection up to a maximum of 12 Mbaud.
  • Integrated RS485 physical interface using a standard D-sub connection.
  • Reliable mounting mechanism utilizing a standard 35 mm DIN rail.

Applications

  • Decentralized industrial control systems utilizing PROFIBUS DP architectures.
  • Machine tool automation and manufacturing production lines.
  • Control cabinet installations with strict physical space constraints.
  • Distributed data acquisition and digital/analog signal concentration.

Technical Specifications

Parameter Specification
Manufacturer BECKHOFF
Model BK3150
Product Type PROFIBUS Compact Bus Coupler
Fieldbus Interface PROFIBUS DP / DP-V1
Physical Layer RS485
Data Transfer Rate Automatic detection up to 12 Mbaud
Bus Interface Connection 1 x D-sub 9-pin socket
Number of Bus Terminals 64 (up to 255 with terminal bus extension)
Nominal Supply Voltage 24 V DC (-15% / +20%)
K-bus (Terminal Bus) Connection Integrated mechanical lock with slot and key connection
Mounting Method 35 mm DIN rail (EN 60715) with structural latch

Connections / Interfaces

Interface Function
D-Sub 9-pin socket PROFIBUS DP RS485 network connection
Power Supply Terminals 24 V DC system supply input and ground connection
K-bus Interface Lateral contact surface for modular Bus Terminal communication

Installation Guidelines

  1. Ensure the entire industrial control system is completely de-energized before beginning installation, modification, or wiring.
  2. Mount the BECKHOFF BK3150 securely onto a clean, grounded 35 mm DIN rail conforming to EN 60715, ensuring the locking slide is firmly engaged.
  3. Attach the required KL/KS series Bus Terminals sequentially onto the DIN rail, sliding them side-by-side into the coupler until the lateral slot-and-key connections are fully interlocked.
  4. Connect the PROFIBUS network cable to the integrated 9-pin D-sub socket. If the coupler is positioned at either physical end of the PROFIBUS segment, ensure a standard active bus termination resistor is switched on at the connector.
  5. Wire the 24 V DC nominal power supply to the appropriate supply terminal contact points.
  6. Set the specific node address on the rotary address switches prior to commissioning the network.

Replacement Recommendations

When replacing an active BECKHOFF BK3150 unit in an existing PROFIBUS installation, document and record the current settings of the rotary address switches before removing the original coupler. Reconfigure the rotary switches on the replacement unit to match the original settings exactly before powering up the system to ensure correct identification by the PROFIBUS master controller.

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Key Features:
#BECKHOFF Bus Terminals #PROFIBUS Bus Couplers

What is the primary function of the BECKHOFF BK3150?
The BECKHOFF BK3150 is a PROFIBUS Compact Bus Coupler designed to connect modular Beckhoff Bus Terminals (KL/KS series) directly to a PROFIBUS DP fieldbus network, acting as a decentralized slave station.

How many Bus Terminals can be connected to a BECKHOFF BK3150?
The BECKHOFF BK3150 supports up to 64 Bus Terminals in a standard configuration, and can support up to 255 Bus Terminals when using a terminal bus (K-bus) extension.

What fieldbus speeds does the BECKHOFF BK3150 support?
The BECKHOFF BK3150 supports baud rates up to a maximum of 12 Mbaud, with automatic baud rate detection implemented internally to conform to the PROFIBUS DP network speed.

What type of connector is used for the network interface on the BECKHOFF BK3150?
The BECKHOFF BK3150 utilizes a standard 9-pin D-sub female socket for connecting the physical RS485 PROFIBUS network cable.

How is the fieldbus node address set on the BECKHOFF BK3150?
The node address for the BECKHOFF BK3150 on the PROFIBUS network is configured manually using the physical address switches located on the front of the compact housing.

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Germany

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