EK1818 | Beckhoff EtherCAT Coupler with Integrated Digital I/O

Beckhoff · Industrial Automation & Electrical

Description  The Beckhoff EK1818 EtherCAT coupler is a compact I/O interface module with integrated digital inputs and outputs for EtherCAT automation systems. It enables direct connection of EtherCAT Terminals to 100BASE-TX networks while providing onboard I/O functionality. This coupler is designed for fast, deterministic data exchange in industrial control applications.     Technical Specifications  Condition New/Never Used Surplus Brand Beckhoff Category Industrial Automation Part Number EK1818 Subcategory EtherCAT Couplers Protocol EtherCAT Data Transfer Rate 100 Mbit/s Bus Interface 2 × RJ45 Nominal Voltage 24 V DC (-15% / +20%) E-bus Current Supply 1000 mA Digital Inputs 8 Digital Outputs 4 Max Output Current 0.5 A per channel Electrical Isolation 500 V Operating Temperature -25 to +60 °C Storage Temperature -40 to +85 °C Protection Rating IP20 Mounting 35 mm DIN Rail Housing Material Polycarbonate Dimensions (W × H × D) 44 × 100 × 67 mm Weight 0.4 lbs     Information About EK1818 The EK1818 is part of Beckhoff’s EtherCAT I/O system, serving as the interface between an EtherCAT network and connected EL-series terminals. It supports high-speed EtherCAT communication with minimal latency and allows expansion to a large number of terminals. The coupler integrates eight digital inputs and four digital outputs, reducing the need for additional I/O modules. Its high-density housing and DIN rail mounting make it suitable for space-efficient control cabinet installations. Key Features: Integrated Digital I/O: Includes 8 digital inputs and 4 digital outputs for direct signal processing. EtherCAT Network Interface: Connects EtherCAT Terminals to 100BASE-TX EtherCAT networks. High-Speed Data Transfer: Supports 100 Mbit/s communication with approximately 1 µs delay. Expandable Terminal Support: Enables connection of up to 65,534 EtherCAT Terminals. Robust Electrical Isolation: Provides 500 V isolation between power, E-bus, and Ethernet interfaces. DIN Rail Mounting: Designed for installation on standard 35 mm DIN rails. Industrial Compliance: Meets EN, CE, and UL standards for industrial automation. The EK1818 delivers the reliability and precision required for integrated EtherCAT I/O coupling and real-time industrial communication.

Brand: Beckhoff · Category: Industrial Automation & Electrical

Key features

• Integrated Digital I/O: Includes 8 digital inputs and 4 digital outputs for direct signal processing.
• EtherCAT Network Interface: Connects EtherCAT Terminals to 100BASE-TX EtherCAT networks.
• High-Speed Data Transfer: Supports 100 Mbit/s communication with approximately 1 µs delay.
• Expandable Terminal Support: Enables connection of up to 65,534 EtherCAT Terminals.
• Robust Electrical Isolation: Provides 500 V isolation between power, E-bus, and Ethernet interfaces.
• DIN Rail Mounting: Designed for installation on standard 35 mm DIN rails.
• Industrial Compliance: Meets EN, CE, and UL standards for industrial automation.

Specifications

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