Omron NX-ECC201 is an EtherCAT coupler unit for the NX series I/O system. Connects NX I/O units to an EtherCAT network as a single slave node. Supports Distributed Clock for synchronized I/O refreshing. Two RJ45 EtherCAT ports for daisy‑chain topology. DIN rail mounting. Delivered with end cover. Applications: Remote I/O control via EtherCAT network Machine automation and high‑speed control systems Factory automation and distributed I/O integration Mixed standard and safety I/O in one slave terminal Core Specifications: Number of connectable NX Units: 63 Number of EtherCAT ports: 2 × RJ45 (100BASE‑TX) Communications cycle (DC Mode): 250 … 4,000 μs (depends on master and configuration) I/O jitter: Inputs 1 μs max., Outputs 1 μs max. Send/receive PDO data sizes: Input 1,024 bytes max., Output 1,024 bytes max. Mailbox data size: Input 256 bytes, Output 256 bytes Node address setting: 1–199 via rotary switches / 1–512 via Sysmac Studio USB port: 1 (programming and configuration) Power Supply Specifications: Unit power supply voltage: 24 V DC (range 20.4 … 28.8 V DC) NX Unit power supply capacity: 10 W max. NX Unit power supply efficiency: 70 % Power consumption (NX Unit power): 1.45 W max. I/O power supply voltage: 5 … 24 V DC (range 4.5 … 28.8 V DC) Maximum I/O power supply current: 4 A Current capacity of power supply terminals: 4 A max. Isolation: No isolation between NX Unit power supply and unit power supply terminals Physical & Environmental Specifications: Enclosure rating: IP20 Mounting: DIN rail (35 mm) Connection: RJ45 (communication), spring terminal (power) Dimensions (W × H × D): 46 mm × 100 mm × 71 mm Weight: approx. 170 g Operating temperature: 0 °C … 55 °C Storage temperature: –25 °C … 70 °C System Integration: This coupler belongs to the Omron NX series I/O system. Connects to an EtherCAT master (e.g., NJ/NX/NY series CPU units) via two RJ45 ports. Up to 63 NX I/O units (digital, analog, safety) can be connected to a single coupler. Supports Free‑Run refreshing, Synchronous I/O refreshing, and Time stamp refreshing. Configuration and diagnostics performed using Sysmac Studio automation software via USB port. Related Products: NX‑ID5442 – 16‑point PNP digital input unit NX‑OD5256 – 16‑point PNP digital output unit NX‑PF0630 – Additional I/O power supply unit (4 A, 5‑24 V DC) NX‑PD1000 – Additional NX unit power supply (24 V DC, 10 W)