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Beckhoff BK5120 – Overview
The Beckhoff BK5120 is a PROFIBUS bus coupler designed for use with Beckhoff Bus Terminals.
It connects a modular terminal block directly to a PROFIBUS fieldbus system, supporting up to 64 terminals (255 I/O points).
The BK5120 enables flexible and decentralized I/O configurations while maintaining high data throughput and reliable communication in industrial automation environments.
Key Features
-
PROFIBUS-DP interface for Beckhoff Bus Terminals
-
Supports up to 64 terminals per station
-
Transmission speed up to 12 Mbit/s
-
Automatic baud rate detection
-
Compact housing for DIN-rail mounting
-
Integrated power supply for the K-bus
-
LEDs for diagnostic and status indication
-
Modular expansion for digital, analog, and specialty terminals
Technical Specifications
-
Part Numbers:
– BK5120
– BK 5120 -
Bus System: PROFIBUS-DP
-
Interface: 9-pin D-sub female connector
-
Data Transfer Rate: 9.6 kbit/s to 12 Mbit/s
-
Max. Terminals: 64 Bus Terminals (255 I/O points)
-
Supply Voltage: 24 V DC (via terminal connection)
-
Power Consumption: 70 mA + load on K-bus
-
Electrical Isolation: 500 V (fieldbus to system bus)
-
Operating Temperature: 0 °C … +55 °C
-
Storage Temperature: −25 °C … +85 °C
-
Mounting: 35 mm DIN-rail
-
Protection Class: IP20
-
Dimensions (W × H × D): 51 × 100 × 68 mm
-
Manufacturer: Beckhoff Automation
Weight: 0.10 – 0.23 kg (0.22 – 0.50 lb)
Packed dimensions: 12 × 7 × 6 cm (4.7 × 2.8 × 2.4 in)
Applications
-
PROFIBUS-based automation networks
-
Distributed control systems requiring modular I/O
-
Integration of Beckhoff terminals into legacy fieldbus systems
-
Process and machine control environments
Why Choose Beckhoff BK5120
-
Reliable and proven PROFIBUS communication
-
Modular, scalable design for flexible I/O configurations
-
Easy integration into existing PROFIBUS networks
-
Compact DIN-rail housing with diagnostic LEDs
Order Now
The Beckhoff BK5120 PROFIBUS Bus Coupler is available for order and ships worldwide.
Description
Beckhoff BK5120 – Overview
The Beckhoff BK5120 is a PROFIBUS bus coupler designed for use with Beckhoff Bus Terminals.
It connects a modular terminal block directly to a PROFIBUS fieldbus system, supporting up to 64 terminals (255 I/O points).
The BK5120 enables flexible and decentralized I/O configurations while maintaining high data throughput and reliable communication in industrial automation environments.
Key Features
-
PROFIBUS-DP interface for Beckhoff Bus Terminals
-
Supports up to 64 terminals per station
-
Transmission speed up to 12 Mbit/s
-
Automatic baud rate detection
-
Compact housing for DIN-rail mounting
-
Integrated power supply for the K-bus
-
LEDs for diagnostic and status indication
-
Modular expansion for digital, analog, and specialty terminals
Technical Specifications
-
Part Numbers:
– BK5120
– BK 5120 -
Bus System: PROFIBUS-DP
-
Interface: 9-pin D-sub female connector
-
Data Transfer Rate: 9.6 kbit/s to 12 Mbit/s
-
Max. Terminals: 64 Bus Terminals (255 I/O points)
-
Supply Voltage: 24 V DC (via terminal connection)
-
Power Consumption: 70 mA + load on K-bus
-
Electrical Isolation: 500 V (fieldbus to system bus)
-
Operating Temperature: 0 °C … +55 °C
-
Storage Temperature: −25 °C … +85 °C
-
Mounting: 35 mm DIN-rail
-
Protection Class: IP20
-
Dimensions (W × H × D): 51 × 100 × 68 mm
-
Manufacturer: Beckhoff Automation
Weight: 0.10 – 0.23 kg (0.22 – 0.50 lb)
Packed dimensions: 12 × 7 × 6 cm (4.7 × 2.8 × 2.4 in)
Applications
-
PROFIBUS-based automation networks
-
Distributed control systems requiring modular I/O
-
Integration of Beckhoff terminals into legacy fieldbus systems
-
Process and machine control environments
Why Choose Beckhoff BK5120
-
Reliable and proven PROFIBUS communication
-
Modular, scalable design for flexible I/O configurations
-
Easy integration into existing PROFIBUS networks
-
Compact DIN-rail housing with diagnostic LEDs
Order Now
The Beckhoff BK5120 PROFIBUS Bus Coupler is available for order and ships worldwide.