Product Description

Overview

The Yokogawa AAI143-H50 is a 16-channel analog input module engineered for the CENTUM VP and CENTUM CS 3000 control systems. It accurately converts 4–20 mA signals from field transmitters into digital data for the Field Control Station (FCS). The module integrates HART communication, allowing the system to monitor secondary variables and perform remote diagnostics.

Key Features

HART-Enabled Digital Communication:
Supports full HART functionality, enabling readout of PV, SV, TV, and QV values. Facilitates remote transmitter configuration and diagnostic operations. Compatible with PRM (Plant Resource Manager) for predictive maintenance and asset management.

High Precision and Stability:
Maintains ±0.1% full-scale accuracy. Low temperature drift ensures consistent readings even with environmental fluctuations.

Rapid Sampling:
Processes all 16 channels in 10 ms, delivering near real-time data for fast-acting control loops.

Channel Isolation and Protection:
Each input channel is fully isolated from system logic to prevent interference. Withstand voltage rated at 1,500 V AC. Includes configurable burnout detection for identifying wiring or transmitter failures.

Redundancy and Reliability:
Supports dual-redundant installation, allowing automatic module switching in case of hardware faults without process disruption.

Technical Specifications

Applications

The AAI143-H50 is ideal for monitoring 16 distinct 4–20 mA process points, such as:

• Pressure, flow, or temperature measurement loops

• Integration with smart transmitters for predictive maintenance

• Systems requiring HART-based remote configuration and diagnostics

FAQ

Q: Can this module interface with smart HART transmitters?
A: Yes, the module fully supports HART 5, 6, and 7 for digital communication.

Q: Does it provide electrical isolation for each channel?
A: Each of the 16 channels is fully isolated to prevent interference and ensure data integrity.

Q: Can it be used in redundant configurations?
A: Yes, dual-redundant setups are supported for uninterrupted process control.

Q: How fast is the input update?
A: All channels are updated within 10 ms, providing near real-time data for control loops.