Yokogawa ALU4*D Modular I/O System

Overview

The Yokogawa ALU4*D is a modular I/O system component, designed for industrial automation and process control systems. It integrates seamlessly into distributed control systems (DCS), offering scalability and flexibility.

Technical Specifications

• Accuracy: ±16 μA, ±4 mV, ±20 mV
• Data Update Period: 10 ms
• Step Response Time: 100 ms
• Transmitter Power Supply: 14.8 V or higher (at 20 mA), 26.4 V or less (at 0 mA)
• Current Consumption: 310 mA (5 V DC), 450 mA (24 V DC)
• Drift Due to Temperature Change: ±16 μA/10 °C, ±4 mV/10 °C, ±20 mV/10 °C, ±0.1 %/10 °C
• Weight: 0.2 kg

Key Features and Functionality

• Modular Design: The ALU4*D system can be customized with various I/O modules. This modularity enhances design flexibility and enables scalability for specific applications.

• Analog Input: As the "ALU4" designation indicates, this module primarily handles analog input signals. It receives signals from sensors and transmitters that measure temperature, pressure, flow, and more.

• Signal Conditioning: The ALU4*D conditions incoming analog signals by filtering, amplifying, and converting them into digital values for processing by the control system.

• Communication: The module communicates with the main control system or other modules via a communication bus. This allows for efficient data exchange and control commands.