Overview The Beckhoff EK1814 EtherCAT Coupler links 100BASE‑TX EtherCAT networks to EtherCAT Terminals and integrates 4 digital inputs and 4 digital outputs, ideal for compact applications with a small number of I/Os. It converts Ethernet telegrams to E‑bus signals, auto‑detects attached ELxxxx terminals, and forwards the 24 V field supply via power contacts up to 10 A. Key Features Integrated I/O: 4 digital inputs and 4 digital outputs 2 × RJ45 EtherCAT ports; up to 100 m between stations (100BASE‑TX) E‑bus supply up to 1 A; power contacts up to 24 V DC / 10 A DI per EN 61131‑2 type 1/3; DO 0.5 A per channel, short‑circuit proof with reverse‑polarity protection 500 V isolation (power contacts/supply/Ethernet) and 500 V (E‑bus/field) HD compact IP20 housing for 35 mm DIN rail mounting Applications Small machine or panel controls requiring a coupler with onboard DI/DO Distributed EtherCAT I/O in line or star topologies via junctions/extensions Specifications Specific MPN EK1814 Function EtherCAT Coupler with integrated digital inputs/outputs 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 4× DI; EN 61131‑2 type 1/3; “0”: −3…+5 V; “1”: 11…30 V; typ. 3 mA; 3 ms filter Digital Outputs 4× DO; ohmic/inductive/lamp; 0.5 A per channel (short‑circuit proof); reverse‑polarity protection;
