Yokogawa ALR121-S00 Serial Communication Module

The Yokogawa ALR121-S00 is a robust and high-performance serial communication module designed for reliable communication between Yokogawa Field Control Stations (FCS) and various subsystems. It supports both RS-422 and RS-485 protocols, providing seamless integration into diverse industrial automation systems. Built to perform in harsh industrial environments, the ALR121-S00 ensures efficient data transfer, real-time control, and system monitoring, even in challenging conditions.

Technical Specifications

Specification	Details
Product Type	Serial Communication Module
Model	ALR121-S00 (RS-422/RS-485, 2-port)
Ports	Dual serial communication ports for simultaneous device connection
Communication Protocols	RS-422 and RS-485
Communication Function	Half-duplex operation
Synchronization Method	Start-stop synchronization
Transmission Code	Binary
Operating Voltage	24 VDC
Weight	0.34 kg
Temperature Range	-40°C to +85°C (operating)
Dimensions	120mm x 80mm x 25mm
Environmental Suitability	Designed for harsh industrial environments including temperature extremes and high vibration
Compliance	CE, UL, and other industry certifications
Mounting	DIN rail mountable for easy integration into control panels

Key Features

Dual Communication Ports: The features two serial communication ports, enabling simultaneous connections to multiple devices, which improves overall system flexibility.
Supports RS-422 and RS-485: This module is compatible with both RS-422 and RS-485 protocols, providing a versatile solution for various industrial communication needs.
Half-Duplex Communication: The ALR121-S00 operates in half-duplex mode, ensuring smooth and reliable data transfer with start-stop synchronization, a critical function for industrial control systems.
Wide Operating Temperature Range: The module is designed to work efficiently in extreme temperatures, from -40°C to +85°C, making it suitable for various industrial environments.
High Environmental Resistance: The can withstand high vibration and temperature extremes, ensuring reliability in demanding industrial applications.
DIN Rail Mountable: Mounting the is straightforward with its DIN rail mounting feature, simplifying integration into existing control panels and systems.

Applications

Industrial Automation Systems: The ALR121-S00 is designed for seamless integration into industrial automation systems, ensuring stable communication between Yokogawa FCS and various subsystems.
Process Control: Ideal for process control systems, the module guarantees real-time data exchange and monitoring, even in the most challenging industrial environments.
Harsh Industrial Environments: With its ability to withstand extreme conditions, the ALR121-S00 is perfect for use in industries such as manufacturing, oil and gas, and power generation.