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.
