BECKHOFF BK5110 CANopen Bus Coupler

Description

The BECKHOFF BK5110 is a CANopen Bus Coupler designed to connect modular electronic terminal blocks to the CANopen fieldbus system. As a central node device, it translates high-level network communication from a CANopen master into the internal, fast K-bus signal structure used by connected Beckhoff Bus Terminals. This modular architecture allows the coupler to support up to 64 digital or analog signal terminals directly, expanding machine and system input/output capacity up to 256 digital inputs and outputs.

Equipped with an open-style 5-pin bus interface connector, the BK5110 facilitates flexible network topologies with data transfer rates up to 1 Mbaud. It features comprehensive CANopen protocol capabilities including variable mapping, node guarding, life guarding, emergency objects, and store/restore configuration functions. Configuration and parameterization can be performed directly via the integrated KS2000 software interface or through the network controller.

Features

• Connects CANopen fieldbus networks to the modular BECKHOFF Bus Terminal system
• Supports up to 64 Bus Terminals locally (expandable up to 256 inputs/outputs for digital signals)
• Data transfer rates up to 1 Mbaud with automatic baud rate detection support
• Configurable via KS2000 configuration software or the master controller
• Extensive CANopen protocol feature set including variable mapping, node guarding, and emergency objects
• Integrated 24 V DC power supply interface with internal K-bus current supply of 500 mA
• Electrical isolation between power contacts and bus coupler supply voltage

Applications

• Distributed industrial machine automation and modular production lines
• CANopen-based factory floor data acquisition and sensor/actuator interfacing
• Process control systems requiring modular digital and analog I/O expansion
• Retrofitting and upgrading legacy machinery utilizing the CANopen communication standard

Technical Specifications

General

CANopen Communication

Electrical

Mechanical and Environmental

Connections / Interfaces

Installation Guidelines

1. Ensure the entire control system and field power supplies are fully de-energized before beginning mechanical installation or wiring work.
2. Mount the BECKHOFF BK5110 Bus Coupler onto a standard 35 mm DIN rail alongside the required modular Bus Terminals, ensuring proper engagement of the internal K-bus sliding contacts.
3. Connect the 24 V DC power supply to the designated terminals of the coupler, verifying correct polarity and ensuring the external fuse rating does not exceed 10 A.
4. Connect the 5-pin open-style CANopen bus connector to the network cable, paying careful attention to proper shielding, grounding, and termination resistors according to CANopen physical layer guidelines.
5. Verify all field-side power connections and potential distributions before restoring the 24 V DC supply voltage.
6. Power on the system and check the diagnostic LED indicators on the coupler to confirm successful network association and operational readiness.