Overview
The Yokogawa ALR121-S50 S1 is a Serial Communication Module designed for Yokogawa CENTUM distributed control systems. It provides reliable serial communication between the control system and external equipment, enabling efficient data transfer for industrial automation and process monitoring applications.
This module supports integration with serial-based field devices, instruments, and third-party systems. Its compact modular design helps improve communication flexibility while ensuring stable operation in continuous process environments.
General Information
Part Number: ALR121-S50 S1
Manufacturer: Yokogawa
Brand: Yokogawa
Country of Origin: Japan
Product Type: Serial Communication Module
Series: CENTUM Distributed Control System
Application: Process automation, industrial communication, monitoring systems, and plant operations
Module Function: Provides serial communication capability between the DCS and external devices
Communication Type: Serial interface communication module
Installation Method: Control cabinet or system rack installation
Design Feature: Compact modular structure for flexible DCS communication expansion
Power Specifications
Supply Voltage: 24 V DC system power supply
Power Consumption: Designed for efficient industrial operation
Power Function: Provides operating power for communication processing circuits
Protection Features: Supports stable module operation and reliable system performance
Performance Feature: Ensures consistent communication performance during continuous industrial operation
Communication & Interface
Communication Interface: Serial communication interface
Compatible System: Yokogawa CENTUM distributed control systems
Communication Function: Enables data exchange between the DCS and connected serial devices
Protocol Support: Supports industrial serial communication applications
Connection Function: Provides reliable links for instruments, controllers, and monitoring equipment
Diagnostic Function: Supports communication status monitoring and fault indication
Environmental
Operating Environment: Industrial process automation environments
Operating Temperature: Suitable for standard DCS cabinet installations
Humidity: Designed for typical industrial operating conditions
Construction Design: Industrial-grade modular structure for reliable long-term service
Installation Area: Suitable for control cabinets, instrument panels, and automation systems
Maintenance Requirement: Designed for convenient maintenance and continuous system availability
Dimensions & Weight
Dimensions (L × W × H): 126.7 × 32.8 × 130 mm
Weight: 0.3 kg
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