Omron NX-AD4204 NX Series Analog Input Module

Description

Designed for high-density current monitoring within the Omron Sysmac automation platform, the NX-AD4204 analog input module processes multi-point analog signals with high precision. This component provides 8 differential input channels specifically engineered to interface with standard 4 to 20 mA current loops. Operating on the slice I/O architecture of the NX Series, it facilitates seamless connection to NX-series EtherCAT Coupler Units or EtherNet/IP Coupler Units, allowing direct integration into complex PLC and controller networks.

The NX-AD4204 analog current input unit features a conversion resolution of 1/8000, converting the 4 to 20 mA analog input range into a digital decimal value of 0 to 8000. Operating via the Free-Run refreshing method, the unit ensures stable and continuous data acquisition with a conversion rate of 250 microseconds per point, making it suitable for standard process variable tracking and monitoring systems.

Features

• Offers 8 high-density differential analog input channels in a compact slice module.
• Supports standard industrial 4 to 20 mA analog current loop inputs.
• Provides 1/8000 conversion resolution for accurate process variable mapping.
• Fast conversion speed of 250 microseconds per point.
• Utilizes Free-Run refreshing for asynchronous, continuous I/O updating.
• Equipped with Push-In Plus terminal block connections for reduced wiring time and high vibration tolerance.

Applications

• Industrial manufacturing and process control systems.
• Municipal water and wastewater processing facilities.
• Oil and gas refinery monitoring loops.
• Pumping station pressure and flow rate acquisition.
• HVAC control and environmental monitoring systems.

Technical Specifications

Installation Guidelines

To ensure optimal performance and electrical noise immunity, mount the NX-AD4204 on a standard 35 mm DIN rail in an upright vertical orientation. Use shielded twisted-pair cables for all 4 to 20 mA current loop connections to minimize electromagnetic interference. The shield wire should be terminated at a designated functional ground terminal. When wiring, utilize the unit's integrated push-in terminal blocks, ensuring that wire strip lengths comply with the official Omron technical manual requirements to maintain gas-tight connections.

Compliance and Certifications

• CE Mark
• cULus Listed