AAR181-S00 S2 Yokogawa | FIO Isolated Analog Input Card

Product Overview

The AAR181-S00 (Model: AAR181) is a high-performance analog input module designed for Yokogawa’s CENTUM VP and ProSafe-RS systems. Functioning within the FIO (Field Interface I/O) architecture, it serves as a critical interface for processing 4 to 20 mA signals from field transmitters. The AAR181-S00 S2 (Part Number: AAR181-S00) is engineered with full channel-to-channel isolation, ensuring superior noise rejection and protecting system logic from field-side electrical interference.

Unlike standard node units, the AAR181-S00 (Model: AAR181) specifically handles 16 channels of isolated analog data, making it suitable for high-density environments where signal integrity is paramount. Its robust design is ideal for distributed control systems (DCS) in heavy industries like oil and gas, petrochemicals, and power generation, supporting both single and dual-redundant configurations to maximize plant uptime and fault tolerance.

Technical Specifications

The AAR181-S00 is built to rigorous industrial standards for precise signal conversion and long-term stability.

• Manufacturer: Yokogawa

• Model Number: AAR181-S00

• Hardware Revision: S2 (Improved thermal and component reliability)

• Product Type: Isolated Analog Input Module

• System Compatibility: Yokogawa CENTUM VP, ProSafe-RS (FIO architecture)

• Number of Channels: 16 channels, fully isolated

• Input Signal Range: 4 to 20 mA DC

• Input Impedance: 250 Ω (During power-on)

• Accuracy: ±0.1% of full scale

• Data Update Cycle: 40 ms

• Isolation: 500 V AC between field channels and system logic

• Redundancy: Supports dual-redundant configuration

• Power Supply: 24 V DC input via backplane

• Power Consumption: 5 V DC at 350 mA; 24 V DC at 540 mA

• Operating Temperature: -10 °C to +55 °C

• Dimensions: 130 × 32.8 × 125.5 mm (Module only)

• Weight: 1.5 kg (Shipping weight)

• Origin: Japan