Beckhoff BK9103

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Beckhoff BK9103

Overview

The Beckhoff BK9103 is a Modbus TCP/IP bus coupler connecting Beckhoff EtherCAT Terminals (EL series) to Modbus TCP networks. It acts as a bridge between Modbus TCP masters and EtherCAT-based I/O modules, offering flexible integration for decentralized control systems. The DIN-rail mountable BK9103 is ideal for industrial settings requiring open network communication and modular I/O expansion.

Key Features

Supports Modbus TCP/IP communication
Interfaces with Beckhoff EtherCAT Terminals
2 × RJ45 Ethernet ports with switch functionality
Automatic baud rate detection
LED diagnostics for status and communication
Supports up to 64 terminals
Compact, modular design
DIN-rail mounting for easy installation

Technical Specifications

Part Number: BK9103
Manufacturer: Beckhoff
Protocol: Modbus TCP/IP
Bus Interface: 2 × RJ45 Ethernet (10/100 Mbps)
I/O Connection: Beckhoff EtherCAT Terminals
Max Terminals: 64 (255 with power feed terminals)
Mounting Type: DIN-rail
Power Supply: 24 V DC
Operating Temperature: –25 °C to +60 °C
Protection Class: IP20
Dimensions: 64 mm × 100 mm × 71 mm (W×H×D)

Applications

Industrial communication gateways
PLC and SCADA system integration
Decentralized I/O systems with Modbus TCP
Building automation with open protocols
Machine control using Beckhoff EL terminals

Why Choose the BK9103

Seamless Modbus TCP to EtherCAT integration
Modular expansion with Beckhoff I/O
Reliable and compact DIN-rail solution
Fast setup with diagnostic LEDs
Suitable for harsh industrial environments

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The Beckhoff BK9103 Modbus TCP bus coupler is available and ships worldwide.

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