NX-AD4204 8-Channel Analog Current Input Module 4-20mA 1/8000 | Omron

The Original New Omron NX-AD4204 is an 8-channel analog current input unit for the NX series I/O system, designed to convert 4–20 mA differential signals from sensors and transmitters into high-resolution digital data. Featuring 13-bit resolution (1/8000) and a fast 250 µs per channel conversion time, it delivers precise, high-speed measurements for demanding machine automation and process control applications. The 12 mm wide module uses screwless push-in terminal blocks for tool‑free wiring and supports both free‑run and synchronous I/O refreshing via EtherCAT.

Core Engineering Highlights:
8 differential analog current inputs (4–20 mA) | 13-bit resolution (1/8000) | 250 µs per channel conversion time | 24 V DC unit power supply | Screwless push-in terminal block | 12 mm width for high-density mounting | IP20 protection | Free‑run and synchronous signal processing modes | NX bus and I/O power supply via coupler | 0°C to +55°C operating temperature

Key Features:

• Original New Omron NX‑AD4204 module

• 8 differential analog current inputs, 4–20 mA

• 13-bit resolution (1/8000) for high-precision measurement

• Fast 250 µs per channel conversion time

• Screwless push-in terminal block for tool‑free wiring

• Differential input design for improved noise immunity

• Free-run or synchronous I/O refreshing with NX1P2 CPU or EtherCAT coupler

• Removable terminal block for simplified maintenance

• 12 mm slim width for high-density panel mounting

• NX series I/O system compatible with EtherCAT and EtherNet/IP couplers

• IP20 protection rating

• LED indicators for module status

• RoHS compliant

Applications:

• Analog signal acquisition from 4–20 mA transmitters (pressure, flow, level, temperature)

• Machine automation and high-speed process control

• Factory automation and data acquisition systems

• OEM equipment requiring high-density analog input

• Distributed I/O systems using NX series architecture

• Synchronous control applications with NX1P2 CPU or EtherCAT coupler

Technical Specifications:

System Compatibility:

• Compatible with Omron NX series EtherCAT Coupler Units (NX‑ECC20×) and EtherNet/IP Coupler Units (NX‑EIC202)

• Requires NX series communication coupler unit or NX series CPU unit for operation

• Supports free-run and synchronous I/O refreshing with NX1P2 CPU unit or EtherCAT coupler

• Compatible with NJ/NX/NY series controllers

• Mounts on 35 mm DIN rail

Related Products:

• NX‑ECC203 – NX series EtherCAT Coupler Unit, 2 ports, 125 µs cycle time

• NX‑EIC202 – NX series EtherNet/IP Coupler Unit, 2 ports, local safety support

• NX‑AD3603 – 4‑channel analog input unit (voltage/current, 1/8000)

• NX‑DA3603 – 4‑channel analog output unit (±10V, 1/8000)

• NX‑PF0630 – Additional I/O power supply unit, 4 A, 5‑24 V DC

• NX‑PF0730 – Additional I/O power supply unit, 10 A, 5‑24 V DC

• NX‑PD1000 – Additional NX unit power supply, 24 V DC, 10 W

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Omron and NX Series are trademarks of Omron Corporation.