BK5151

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The BK5151 is a compact EtherCAT bus coupler weighing approximately 100 grams and operating within temperatures of -25 to +60°C. Manufactured by Beckhoff, it is part of the BK EtherCAT Bus Couplers series, supporting up to 64 bus terminals and automatic data rates up to 1 Mbaud. It features diagnostics LEDs and a 24V DC power supply.

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Product Description:

The BK5151 bus coupler is a compact device designed for efficient communication in industrial networks with approximately 100 g in weight. This bus coupler supports up to 64 bus terminals and up to 255 terminals with K-bus extension. It facilitates seamless data exchange with automatic detection data transfer rates reaching up to 1 Mbaud through its D-sub 9-pin socket. The device is powered by a 24 V DC supply, operating within a range of -15%/+20% and is equipped with LED indicators for easy diagnostics, with 2 x power supply, 2 x K-bus, and 2 x fieldbus indicators enhancing usability through clear visual feedback on operational status. The device offers a configuration interface for streamlined setup and adjustment by user.

Focusing on its communication capabilities, the BK5151 shines with support for 16 Tx/Rx PDOs, which allows for efficient data transmission and reception. It supports a variety of PDO modes, including <>, <> that enable flexible integration into various network architectures. The device is designed for reliable data transfer, utilizing a screened, twisted copper cable for the data transfer medium, ensuring signal integrity within communication process even through noisy industrial environments. The integrated life, node guarding, emergency object, variable mapping, and store/restore features add to the coupler’s robustness, supporting various network management functions for maintaining network integrity and reliability, all while simplifying network maintenance through enhanced monitoring functionality. Current supply for K-bus is at 1750 mA, ensuring continued operation and data reliability within network, making the device more dependable overall.

Designed for use in demanding environments, the BK5151 operates reliably within a broad temperature range of <>, and it can be stored in an environment with temperatures ranging from <>. It includes a 24 V DC power supply and contributes toward operational reliability in range of applications.

Additional Canopen Features
life, node guarding, emergency object, variable mapping, store/restore
Bus Interface
D-sub 9-pin socket
Current Supply K-bus
1750 mA
Data Transfer Medium
screened, twisted copper cable, 2 x signal, 1 x ground (recommended)
Data Transfer Rates
automatic detection up to 1 Mbaud
Diagnostics Led
2 x power supply, 2 x K-bus, 2 x fieldbus
Max. Number Of Bytes Fieldbus
16 Tx/Rx PDOs
Number Of Bus Terminals
64 (255 with K-bus extension)
Number Of Pdos (canopen)
16 Tx/Rx PDOs
Operating Temperature
-25…+60°C
Pdo Modes
synchron, cyclic, event driven, polling
Power Supply
24 V DC (-15%/+20%)
Serial Interface
configuration interface
Storage Temperature
-40…+85°C
Weight
approx. 100 g

Frequently Asked Questions about BK5151:

Q: What is the maximum number of bus terminals supported by the BK5151 bus coupler?

A: The BK5151 bus coupler supports up to 64 terminals, or 255 with K-bus extension.

Q: What data transfer rates does the BK5151 support?

A: The BK5151 supports automatic detection data transfer rates up to 1 Mbaud.

Q: What type of power supply is required for the BK5151?

A: The BK5151 requires a 24 V DC power supply within a range of -15%/+20%.

Q: What kind of bus interface does the BK5151 feature?

A: The BK5151 features a D-sub 9-pin socket interface.

Q: What PDO modes are supported by the BK5151?

A: The BK5151 supports synchron, cyclic, event driven, and polling PDO modes.


Internal Product Review

  • ‘‘BK5151 EtherCAT bus coupler provides efficient data transfer for industrial networks. Its compact design and easy integration make it a valuable component for demanding applications, ensuring seamless communication and reliable network performance.’’

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