Yokogawa | AAI841-S00 | Analog I/O Module | 8 In / 8 Out

Product Description

The AAI841-S00 analog I/O module from Yokogawa integrates both input and output functions into a single compact unit. Designed for distributed control systems, it provides 8 analog input channels and 8 analog output channels, all operating within the 4–20 mA DC range. This module is available in multiple suffix variations, including options for HART communication and enhanced environmental tolerance, making it adaptable to diverse industrial applications.

Technical Specifications

• Model Number: AAI841-S00

• Type: Analog I/O Module

• Channels: 8 input channels / 8 output channels (non-isolated)

• Input Signal Range: 4–20 mA DC

• Output Signal Range: 4–20 mA DC

• Withstanding Voltage: ±1 V or more common mode voltage

• Input Resistance (Power ON): 400 Ω at 20 mA, 1000 Ω at 4 mA

• Input Resistance (Power OFF): ≥500 kΩ

• Output Resistance: ≥1 MΩ

• Circuit-Open Detection: ≥340 kΩ for input

• Accuracy: ±48 µA

• Data Update Period: 10 ms

• Input Step Response Time: 100 ms

• Output Step Response Time: <100 ms

• Temperature Drift: ±0.1% per 10 °C

• Transmitter Supply: Supports 2-wire and 4-wire transmitter configurations

• Power Consumption: 310 mA (5 V DC), 500 mA (24 V DC)

• Weight: 0.3 kg

Suffix Code Options

• S: Standard type

• H: HART protocol support

• 0: Basic type

• 3: ISA G3 environmental option, extended temperature range (-20 to +70 °C)

Key Features

• Dual Functionality: Combines input and output in one module

• HART Support (optional): Enables digital communication over analog signals

• Compact Design: Lightweight and efficient for cabinet installation

• Flexible Configuration: Multiple suffix options for different environments

• Reliable Performance: Stable accuracy and fast response times

Application Scenarios

• Chemical and petrochemical process monitoring

• Power generation instrumentation

• Water treatment and distribution systems

• General industrial automation requiring both input and output signals

FAQ

Q: How many channels does the AAI841-S00 provide?  A: It supports 8 input channels and 8 output channels.

Q: Does this module support HART communication?  A: Yes, the H suffix variant provides HART protocol support.

Q: What is the difference between S00 and H00 versions?  A: The S00 is the standard type, while the H00 variant includes HART communication capability.

Comparison with Similar Models

• AAI841-S00: Standard analog I/O module, non-isolated

• AAI841-H00: Analog I/O module with HART protocol support

• AAI841-3: Enhanced environmental tolerance with ISA G3 compliance