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Beckhoff EK/EC1xxx, BK1xx0 | EtherCAT Couplers
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Beckhoff EK/EC1xxx, BK1xx0 | EtherCAT Couplers

Manufacturer: Beckhoff
Series: EK/EC1xxx & BK1xx0 EtherCAT Couplers
Protocol Support: EtherCAT, PROFINET, Modbus TCP, EtherNet/IP (via variants)
Data Rate: 100 Mbps Full Duplex
I/O Expansion: Supports EL/ES/EM terminals (up to 65,535 I/O)
Supply Voltage: 24 V DC (typical)

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Product Description

The Beckhoff EK/EC1xxx and BK1xx0 EtherCAT Couplers provide reliable, low-latency integration between distributed I/O terminals and high-speed EtherCAT networks. Designed for modular expansion and robust performance, these couplers support multiple fieldbus interfaces and enable flexible system architecture for advanced automation lines, machine upgrades, robotic platforms, and smart factory applications.

Standard Features

  • High-Speed Communication: EtherCAT real-time transmission with microsecond-level cycle times

  • Flexible I/O Expansion: Supports extensive EL/ES series terminals for analog, digital, motion, and specialty I/O

  • Auto-Configuration: Automatic terminal identification and topology update during hot-connect

  • Diagnostics: Built-in status LEDs, error detection, and line-break diagnostics

  • Multi-Bus Integration: PROFINET, PROFIBUS, Modbus TCP, CANopen via coupler variants

  • Industrial Reliability: Strong EMI immunity, vibration resistance, and long-term stable operation

  • Installation Ready: DIN-rail mounting with compact footprint for dense cabinet layouts

Technical Specifications

ModelInterface / Coupler TypeNetwork PortsSupply VoltageProtection Rating
EK1100Standard EtherCAT Coupler2 × RJ45 EtherCAT24 V DCIP20
EK1110Single-Port EtherCAT Extension1 × RJ45 EtherCAT24 V DCIP20
EK1122EtherCAT Junction (2-Branch)3 × RJ45 EtherCAT24 V DCIP20
EK1101EtherCAT Coupler with Power Monitoring2 × RJ45 EtherCAT24 V DCIP20
EC1000Embedded EtherCAT Coupler2 × RJ45 EtherCAT24 V DCIP20
EC1100Micro EtherCAT Coupler2 × RJ45 EtherCAT24 V DCIP20
EC1200 EtherCAT Coupler for Distributed I/O2 × RJ45 EtherCAT24 V DCIP20
BK1120Bus Coupler (EtherCAT to I/O Terminals)2 × RJ45 EtherCAT24 V DCIP20
BK1150PROFINET Bus Coupler2 × RJ45 PROFINET24 V DCIP20
BK1250EtherNet/IP Bus Coupler2 × RJ45 Ethernet24 V DCIP20

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