Description

Engineered for deterministic communication in high-interference environments, the BECKHOFF BK2000 Lightbus Bus Coupler serves as the decentralized interface between the fiber-optic Lightbus system and modular Beckhoff Bus Terminals. This unit automatically configures and maps the digital, analog, and specialty process signals from up to 64 connected I/O terminals directly into the control system's memory. By using fiber-optic transmission media, the module ensures complete electrical isolation, high noise immunity, and rapid data exchange rates of 2.5 MBaud. This configuration makes it highly suitable for complex, geographically distributed control architectures where electrical noise and ground loops are common concerns.

Features

• Integrates a specialized Lightbus fiber-optic interface for high-speed, noise-free industrial communication.
• Supports the direct connection of up to 64 Beckhoff Bus Terminals to a single node.
• Provides an internal K-bus output current of up to 1.75 A to power connected I/O terminal logic.
• Equipped with an integrated configuration interface compatible with the KS2000 software tool.
• Features integrated, isolated 24 V DC power contacts for reliable peripheral power distribution.
• Robust IP20-rated housing with a compact DIN-rail mounting profile.

Applications

• Distributed control networks in high-voltage and power-generation facilities.
• Automotive assembly lines prone to high electromagnetic welding interference.
• Water and wastewater treatment facility telemetry.
• Heavy machinery and packaging systems requiring robust, isolated I/O nodes.

Technical Specifications

Installation Guidelines

• Mount the coupler onto a standard 35 mm DIN rail (EN 60715) by snapping it into place until secure.
• Ensure the system is completely de-energized before connecting the 24 V DC control power or peripheral wiring.
• Observe minimum bending radii for all connected Lightbus fiber-optic cables to avoid signal attenuation or physical damage.
• Keep the ventilation slots on the top and bottom of the housing clear of obstructions to facilitate proper thermal convection.
• Verify that the total current draw of all connected Bus Terminals does not exceed the maximum 1.75 A K-bus current limit. Use power feed terminals if necessary.

Compliance and Certifications

• CE
• IEC 68-2-6 (Vibration Resistance)
• IEC 68-2-27 (Shock Resistance)
• EN 61000-4-4 / EN 61000-4-2 (Electromagnetic Compatibility Standards)