YOKOGAWA AAI141-H Analog Input Module

Product Overview

Brand: YOKOGAWA
Model: AAI141-H
Series: CENTUM VP / CENTUM CS 3000 FIO
Product Type: Analog Input Module
Function: 16-channel analog input module with HART communication support, designed for Yokogawa distributed control systems (DCS). It receives 4–20 mA current signals from field transmitters and converts them into digital process data for monitoring and control.

Technical Specifications

• Module Type: Analog Input Module
• Input Channels: 16 channels
• Input Signal: 4–20 mA DC
• Communication: HART protocol support
• Isolation Type: Non-isolated channels
• Compatible Systems:
  • Yokogawa CENTUM VP
  • CENTUM CS 3000
• Input Range: 4–20 mA
• Accuracy: ±16 μA
• Data Update Period: 10 ms
• Input Resistance: Approx. 400 Ω at 20 mA
• Transmitter Support: 2-wire / 4-wire transmitter selectable
• Power Supply: 5 VDC / 24 VDC system power
• Mounting: Yokogawa FIO I/O module base
• Weight: Approx. 0.2 kg

Advantages & Features

High-Density Analog Input

Provides 16 analog input channels in a compact module design, reducing cabinet space and improving system integration efficiency.

HART Communication Support

Supports HART-enabled field instruments, allowing additional device information, diagnostics, and configuration data to be accessed through the control system.

Reliable Signal Acquisition

Converts industrial 4–20 mA transmitter signals accurately for stable process monitoring and control.

Flexible Transmitter Connection

Supports different field transmitter configurations, including 2-wire and 4-wire transmitters.

Fast Data Processing

Provides quick signal update performance for real-time process monitoring applications.

Easy DCS Integration

Designed specifically for Yokogawa CENTUM systems, simplifying installation, configuration, and maintenance.

Typical Applications

• Oil & gas processing plants
• Petrochemical facilities
• Chemical production systems
• Power generation plants
• Water treatment systems
• Pharmaceutical manufacturing
• Process automation systems
• Industrial monitoring systems

Precautions

• Confirm compatibility with Yokogawa CENTUM VP / CS 3000 systems before installation.
• Verify that field signals are 4–20 mA DC before connection.
• Check wiring polarity and terminal configuration carefully.
• Ensure HART communication settings match field instruments.
• Avoid installation in environments with excessive vibration, moisture, or corrosive gases.
• Disconnect system power before replacing the module.
• Verify configuration parameters after replacement.