Beckhoff BK9103 Overview The Beckhoff BK9103 is a Modbus TCP/IP bus coupler that connects Beckhoff EtherCAT Terminals (EL series) to Modbus TCP networks. It acts as a communication bridge between Modbus TCP masters and EtherCAT-based I/O modules, providing flexible integration for decentralized control systems. The DIN-rail mountable BK9103 is ideal for industrial environments 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 Order Now The Beckhoff BK9103 Modbus TCP bus coupler is available and ships worldwide. Return to Beckhoff Bus Terminals Return to Beckhoff Category
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