BECKHOFF BK9100 Bus Terminal Ethernet TCP/IP Bus Coupler

Description

Integrating industrial I/O signals directly into Ethernet networks, the BECKHOFF BK9100 functions as a high-performance Ethernet TCP/IP bus coupler designed for modular Bus Terminal configurations. This interface module bridges the fieldbus-independent K-bus system with standard Ethernet networks, permitting efficient decentralized automation architectures.

The unit features an integrated 3-port switch (configured as a 2-channel switch and one internal port), facilitating line topology and star topology physical wiring without requiring external network switches. Communication capabilities include multi-protocol support, enabling seamless integration within TwinCAT ADS systems, Modbus TCP networks, and Beckhoff real-time Ethernet environments. Configuration and diagnostics are conveniently handled via the KS2000 software interface.

Features

• Dual-Channel Switch: Equipped with 2 x RJ45 ports for cost-efficient line topology cascading of up to 20 BK9100 units.
• Flexible Expansion: Connects up to 64 Bus Terminals directly, with scalability up to 255 terminals using a K-bus extension.
• Multi-Protocol Support: Compatible with TwinCAT ADS, Modbus TCP, and Beckhoff Real-Time Ethernet protocols.
• Auto-Negotiation: Detects transmission speeds of 10 or 100 Mbit/s automatically.
• Reliable Isolation: Features 500 V electrical isolation between power contacts, supply voltage, and the fieldbus network.

Applications

• Process control and industrial automation networks
• Decentralized data acquisition systems
• Factory floor I/O expansion in line and star topologies
• Water and wastewater management systems
• Material handling and building automation infrastructure

Technical Specifications

Installation Guidelines

• Mounting: Designed for standard 35 mm DIN rail installation conforming to EN 60715. Ensure correct seating and secure snapping mechanism alignment.
• Wiring: Use Category 5 shielded twisted-pair (STP) copper cables for 100 Mbit/s operation to ensure robust immunity against electromagnetic interference.
• Grounding: Connect the DIN rail to a low-impedance protective earth ground. Ensure shield continuity across all RJ45 connections.
• Network Cascading: In line topologies, the maximum physical distance between stations is 100 m. Up to 20 BK9100 units can be cascaded, with a maximum total line length of 2 km.

Compliance and Certifications

• CE: Yes
• UL: Yes
• DNV GL: Marine Certified
• ATEX Ex-Marking: II 3 G Ex ec IIC T4 Gc
• IECEx Ex-Marking: Ex ec IIC T4 Gc