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Product Introduction
The Yokogawa ALR121-SE1 Serial Communication Module is a critical component designed to enhance communication capabilities within Yokogawa’s advanced control and monitoring systems. This module serves as an interface that facilitates reliable serial communication between field devices and control systems, ensuring seamless data exchange across industrial automation networks.
Built with robust engineering standards, the ALR121-SE1 supports multiple serial protocols commonly used in process industries, enabling flexible integration with a variety of instrumentation and control equipment. Its compact design allows for straightforward installation in control panels or system racks without occupying excessive space.
The module plays an essential role in providing accurate, real-time data flow that is vital for monitoring, control, and diagnostics in complex industrial processes, such as power generation, chemical manufacturing, and oil & gas operations.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | ALR121-SE1 |
| Function | Serial Communication Module |
| Communication Protocols Supported | RS-232, RS-485, Modbus RTU, DNP3 (optional configurations) |
| Data Transfer Rate | Up to 115.2 kbps |
| Number of Ports | 1 Serial Port |
| Power Supply | 24 V DC (Typical) |
| Power Consumption | Approximately 3.5 W |
| Operating Temperature Range | -10°C to +60°C (14°F to 140°F) |
| Storage Temperature Range | -20°C to +70°C (-4°F to 158°F) |
| Humidity | 5% to 95% RH (non-condensing) |
| Mounting Type | DIN Rail or Panel Mount |
| Dimensions (WxHxD) | 126.7 × 32.8 × 130 mm |
| Weight | 0.3 kg |
| Status Indicators | LED indicators for Power, Tx, Rx, and Error status |
| Certifications | CE, UL, CSA certified |
Product Applications
The ALR121-SE1 module is widely utilized in industries that demand reliable, high-speed serial communication for process control and monitoring:
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Power Plants: Facilitates communication between sensors, controllers, and DCS for efficient plant operation.
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Chemical Processing: Enables data exchange for safety and process optimization in hazardous environments.
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Oil & Gas: Used in pipeline monitoring systems, refining, and upstream operations requiring robust communications.
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Water and Wastewater Treatment: Assists in monitoring pump stations, chemical dosing, and filtration systems.
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Pharmaceutical Manufacturing: Ensures precise communication between automated process controls and quality monitoring devices.
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Food & Beverage: Supports serial communication in bottling lines, packaging, and process control systems.
Product Advantages
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Reliable Communication: Supports multiple serial protocols ensuring compatibility with diverse industrial equipment.
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Compact and Lightweight: Small footprint fits easily into control cabinets or panels without space constraints.
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Easy Installation: DIN rail or panel mounting options provide installation flexibility.
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Robust Design: Built to withstand industrial environments with wide operating temperature and humidity tolerance.
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Clear Status Indicators: LED signals provide immediate visual feedback on module operation and communication status.
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Low Power Consumption: Designed for energy-efficient operation reducing overall system power requirements.
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Certified for Industrial Use: Meets international safety and performance standards (CE, UL, CSA).
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Flexible Integration: Supports common communication standards, allowing seamless integration into existing control architectures.
Frequently Asked Questions (FAQ)
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Which serial protocols does the ALR121-SE1 support?
It supports RS-232, RS-485, and commonly used protocols like Modbus RTU. Some configurations allow DNP3 support. -
What is the maximum data transfer rate of the module?
The module supports data rates up to 115.2 kbps. -
Can the module be installed in tight spaces?
Yes, its compact dimensions (126.7 × 32.8 × 130 mm) make it suitable for confined control panel installations. -
What is the operating temperature range?
The module operates reliably between -10°C and +60°C. -
How is the module powered?
It requires a 24 V DC power supply, typical in industrial control environments. -
Does it support DIN rail mounting?
Yes, the module can be mounted on standard DIN rails or panels as needed. -
Are there status indicators for diagnostics?
Yes, LEDs display power status, transmission (Tx), reception (Rx), and error indications. -
Is the ALR121-SE1 suitable for hazardous environments?
While it is robust, use in hazardous areas depends on specific certifications; consult Yokogawa for explosion-proof variants. -
What is the approximate weight of the module?
It weighs 0.3 kg. -
How does it integrate with Yokogawa control systems?
It seamlessly integrates with Yokogawa’s DCS and SCADA systems, providing reliable serial data communication.
Related Models (Same Series or Similar Functionality)
| Model Number | Description |
|---|---|
| ALR121-SE2 | Enhanced serial communication module with dual ports |
| ALR121-SE3 | Serial module supporting additional protocol configurations |
| ALR121-RE1 | Remote Ethernet communication module |
| ALR120-SE1 | Previous generation serial communication module |
| ALR123-SE1 | Serial module with extended temperature range |
| ALR121-MP1 | Multiprotocol communication module including serial and Ethernet |
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