Yokogawa AAI141-S00 S2 Analog Input Module Thoughtful service

Overview

The Yokogawa AAI141-S00 S2 is a 16-channel analog input module developed for use with Yokogawa’s CENTUM CS 3000 and CENTUM VP distributed control systems. It provides precise conversion of analog 4–20 mA signals from field transmitters into digital data for advanced process monitoring and control. The “S2” version represents a later hardware revision that improves noise immunity, long-term stability, and reliability under demanding industrial conditions such as oil refining, chemical processing, and power generation environments.

General Information

• Part Number: AAI141-S00 S2

• Manufacturer: Yokogawa Electric Corporation

• Series: AAI (Analog Input Module Series)

• Type: Analog Input Module (AI)

• Number of Channels: 16 isolated analog input channels

• Signal Type: 4–20 mA DC current input

• Country of Origin: Japan

• Mounting: Installed on the FIO (Field Input/Output) base unit within a control cabinet

• Technology: High-performance 16-bit A/D conversion, optical isolation, digital noise filtering, and built-in diagnostics for stable operation and high accuracy in process automation systems

Power Specifications

• Power Supply Voltage: 24 V DC (supplied from the I/O base)

• Input Voltage Range: 20–28 V DC

• Power Consumption: Approx. 6.5 W

• Input Power Source: Backplane supply connection

• Isolation: Channel-to-channel and channel-to-ground optical isolation

• Protection: Integrated protection against overvoltage, reverse polarity, and transient noise

Communication & Interface

• Interface Type: Field I/O (FIO) bus communication

• System Compatibility: Yokogawa CENTUM CS 3000 / CENTUM VP

• Input Signal Range: 4–20 mA DC

• Input Resistance: 250 Ω typical

• Resolution: 16-bit A/D conversion

• Accuracy: ±0.1% of full scale or better

• Diagnostics: Built-in self-diagnostics with LED indicators for power, communication, and channel errors

• Configuration: Software-configurable through Yokogawa’s engineering tools (CENTUM system builder and FIO configuration software)

Environmental

• Operating Temperature: 0 °C to +60 °C

• Storage Temperature: −20 °C to +70 °C

• Humidity: 10% to 90% RH, non-condensing

• Vibration Resistance: 10–60 Hz, amplitude 0.075 mm

• Protection Rating: IP20 (for internal cabinet installation)

• Maximum Operating Altitude: 2000 m

Dimensions & Weight

• Dimensions (L × W × H): 107.5 × 32.8 × 130 mm

• Weight: 0.2 kg

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