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- Yokogawa
- ALR121-S51
- Serial Communication Module
- Japan
- 126.7 × 32.8 × 130 mm
- 0.3 kg
- Xiamen, China
- New & In Stock
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Yokogawa ALR121-S51 Serial Communication Module
Product Description
The Yokogawa ALR121-S51 is an advanced serial communication module designed for seamless data exchange in industrial automation systems. This module enables communication between field devices, controllers, and other devices in the network, ensuring reliable real-time data transfer over serial protocols. With support for industry-standard communication protocols like Modbus RTU, the ALR121-S51 plays a vital role in integrating distributed control systems (DCS), programmable logic controllers (PLCs), and remote terminal units (RTUs).
Built for robust industrial environments, the module has a compact form factor (dimensions: 126.7 × 32.8 × 130 mm, weight: 0.3 kg) and is designed to be mounted on DIN rails or panels for easy integration into existing systems. The ALR121-S51 is engineered to provide high-speed communication while maintaining data integrity, which is crucial for applications requiring timely data acquisition and control.
Product Specifications
| Specification | Details |
|---|---|
| Dimensions | 126.7 × 32.8 × 130 mm |
| Weight | 0.3 kg |
| Communication Protocol | Modbus RTU |
| Data Rate | Up to 115200 bps |
| Operating Voltage | 24 VDC ± 20% |
| Temperature Range | -20°C to +60°C |
| Mounting Type | DIN rail or panel mountable |
| Connector Type | 9-pin D-Sub, RJ45 Ethernet |
| Power Consumption | 3.5W |
| Compliance | CE, UL certified |
| Environmental Rating | IP20 |
Product Applications
The Yokogawa ALR121-S51 serial communication module is versatile and suitable for a variety of industrial applications that require reliable data transfer over long distances. Common applications include:
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Industrial Automation Systems: It connects various field devices (sensors, actuators) to a control system, ensuring smooth data transmission in real-time automation networks.
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SCADA Systems: The module is used to connect remote terminal units (RTUs) to central SCADA systems, facilitating communication in large, distributed systems like water treatment facilities and power grids.
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Process Control Systems: In chemical, pharmaceutical, and oil & gas industries, it enables real-time data communication between field devices and central control systems.
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Energy Management Systems: It links power meters and energy controllers to central monitoring systems, enabling better energy consumption management and process optimization.
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Building Automation: The ALR121-S51 can be used in building automation systems, controlling HVAC, lighting, and security systems via serial communication.
Product Advantages
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Reliable Communication: The ALR121-S51 ensures stable and secure data transmission with Modbus RTU, a widely used protocol for serial communication in industrial applications.
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Compact and Lightweight: At only 126.7 × 32.8 × 130 mm and weighing just 0.3 kg, this module is small and lightweight, making it easy to install in tight spaces.
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Wide Temperature Range: The module operates in a broad temperature range from -20°C to +60°C, making it suitable for both harsh and moderate industrial environments.
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Easy Integration: Supports Modbus RTU, a protocol commonly used across many industrial devices, allowing for easy integration into existing systems without compatibility issues.
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Energy-Efficient: With only 3.5W of power consumption, the ALR121-S51 is an energy-efficient solution, helping to reduce overall power usage in automation systems.
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Rugged Design: Built to withstand tough industrial conditions, it offers durability and reliability in environments with high electromagnetic interference (EMI) or temperature fluctuations.
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Flexible Installation Options: The module can be mounted on DIN rails or directly on a panel, providing flexibility depending on the installation environment.
Brand Information
Yokogawa is a leading global supplier of industrial automation, control, and measurement products, renowned for their precision, reliability, and innovation. With decades of experience in the automation and control industry, Yokogawa’s solutions are used in various sectors such as oil and gas, chemical processing, power generation, and manufacturing. The ALR121-S51 is part of Yokogawa’s comprehensive portfolio of communication modules, offering high performance for real-time data transmission in mission-critical industrial systems.
Recommended Related Models from the ALR Series
| Model | Description | Specifications |
|---|---|---|
| ALR121-S01 | Basic serial communication module for small-scale applications | 126.7 × 32.8 × 130 mm; 0.3 kg; Modbus RTU |
| ALR121-S10 | High-performance module with extended data rates | 126.7 × 32.8 × 130 mm; 0.3 kg; Modbus RTU |
| ALR121-S60 | Advanced model with additional communication protocols | 126.7 × 32.8 × 130 mm; 0.32 kg; Modbus RTU |
| ALR121-S50 | Enhanced version with additional ports and higher bandwidth | 126.7 × 32.8 × 130 mm; 0.3 kg; Modbus RTU |
| ALR121-S70 | Multi-port communication module with isolated channels | 126.7 × 32.8 × 130 mm; 0.35 kg; Modbus RTU |
Recommended Popular Models from Yokogawa
| Model | Description | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| AMM22TJ | Serial Communication Module | 126.7 × 32.8 × 130 | 0.3 |
| AMN32T | Serial Communication Module | 130 × 32.8 × 130 | 0.35 |
| ALR121-S53 | Serial Communication Module | 126.7 × 32.8 × 130 | 0.3 |
| ALR121-S50 | Serial Communication Module | 126.7 × 32.8 × 130 | 0.3 |
| ALR121-S00 | Serial Communication Module | 126.7 × 32.8 × 130 | 0.3 |
FAQ (Frequently Asked Questions)
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Q: What communication protocols does the ALR121-S51 support?
A: The module supports Modbus RTU for serial communication. -
Q: What is the operating voltage of the ALR121-S51?
A: The module operates with a 24 VDC power supply ± 20%. -
Q: How is the ALR121-S51 mounted?
A: It can be mounted on DIN rails or directly on panels. -
Q: What is the data rate supported by the ALR121-S51?
A: The module supports data rates up to 115200 bps. -
Q: Can the ALR121-S51 be used in outdoor environments?
A: No, it is rated for indoor use with an IP20 environmental rating. -
Q: Is the ALR121-S51 energy-efficient?
A: Yes, it consumes only 3.5W of power, making it energy-efficient. -
Q: What is the temperature range of the ALR121-S51?
A: The module operates in temperatures between -20°C to +60°C. -
Q: What is the weight of the ALR121-S51 module?
A: The module weighs 0.3 kg. -
Q: Can the ALR121-S51 communicate with other Yokogawa products?
A: Yes, the module is compatible with other Yokogawa controllers and industrial equipment. -
Q: How does the ALR121-S51 integrate with Modbus RTU systems?
A: The module easily integrates by connecting via the 9-pin D-Sub or RJ45 Ethernet port.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.