• Beckhoff Ethernet Module Beckhoff EK1818 EtherCAT Coupler EtherCAT Coupler with 8 DI / 4 DO, 2x RJ45 100BASE-TX, 24V DC, 44×100×67 mm
  • Beckhoff Ethernet Module Beckhoff EK1100 EtherCAT Coupler EK1100, 24V DC Supply, 2x RJ45 100BASE-TX, 44×100×68 mm
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Beckhoff EK1818 EtherCAT Coupler EtherCAT Coupler with 8 DI / 4 DO, 2x RJ45 100BASE-TX, 24V DC, 44×100×67 mm

$220.00 USD
$220.00 USD
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TECHNICAL DATASHEET PDF

Overview

The Beckhoff EK1818 is an EtherCAT Coupler that links 100BASE‑TX EtherCAT networks to EtherCAT Terminals and integrates 8 digital inputs and 4 digital outputs. It auto-detects attached ELxxxx terminals and converts Ethernet telegrams to E‑bus signals. Ideal for compact applications with a small number of I/Os.

Key Features

  • Integrated I/O: 8 digital inputs, 4 digital outputs
  • 2 × RJ45 ports for EtherCAT (100BASE‑TX), up to 100 m between stations
  • E‑bus supply up to 1 A; power contacts up to 24 V DC / 10 A
  • 500 V isolation between power contacts, supply voltage, Ethernet; and between E‑bus/field
  • Compact IP20 HD housing for 35 mm DIN rail mounting
  • Approvals: CE, UL

Applications

  • Small machine or panel controls requiring a coupler with onboard digital I/O
  • Distributed I/O on EtherCAT lines or star topologies via junctions/extensions

Specifications

Brand Beckhoff
Series EtherCAT Coupler
Specific MPN EK1818
Function Coupler for ELxxxx EtherCAT Terminals with integrated 8 DI / 4 DO
Bus Interface 2 × RJ45 (EtherCAT 100BASE‑TX)
Distance Between Stations Max. 100 m (Cat.5 shielded or better)
Nominal Voltage 24 V DC (-15%/+20%)
E‑bus Current Supply 1000 mA
Current Consumption (US) 100 mA + (∑ E‑bus current / 4)
Current Consumption (UP) 40 mA + load
Digital Inputs 8× DI; EN 61131-2 type 1/3; 0-signal -3…+5 V; 1-signal 11…30 V; typ. 3 mA; 3 ms filter
Digital Outputs 4× DO; ohmic/inductive/lamp loads; 0.5 A per channel (short‑circuit proof); reverse‑polarity protection; <150 mJ/channel
Switching Times Typical TON 60 μs; TOFF 300 μs
Electrical Isolation 500 V (power contact/supply/Ethernet); 500 V (E‑bus/field)
Protection / Mounting IP20; HD housing; 35 mm DIN rail (EN 60715)
Dimensions (W × H × D) 44 mm × 100 mm × 67 mm
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