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The Yokogawa ANT421 Communication Module is a robust, high-performance communication solution designed to seamlessly integrate with Yokogawa’s CENTUM VP and ProSafe-RS systems. The ANT421 is engineered to provide secure, high-speed, and reliable communication between industrial control systems and field devices. It supports a variety of communication protocols, offering versatility in a wide range of industrial applications, from power generation to manufacturing and process control.

Featuring dual Ethernet ports for redundancy and enhanced fault tolerance, the ANT421 ensures minimal downtime and continuous system operation. With its compact design, flexible integration, and scalability, the ANT421 is an ideal solution for industries that demand high availability and seamless connectivity.

Technical Specifications

Feature	Specification
Model	ANT421
Communication Protocol	Modbus TCP/IP, EtherNet/IP, OPC-UA, PROFIBUS
Interface Type	Dual Ethernet Ports (10/100/1000 Mbps)
Power Supply	24V DC
Mounting	Rack Mount
Dimensions (WxHxD)	8.27” x 4.13” x 9.84” (210 mm x 105 mm x 250 mm)
Weight	3.8 lbs (1.7 kg)
Operating Temperature	-20°C to +60°C
Storage Temperature	-40°C to +85°C
Maximum Power Consumption	14W
Status Indicators	LED indicators for communication, power, and status

Recommended Related Models

AMN32-S1 – A communication module ideal for large-scale, mission-critical applications, offering redundancy and multiple protocol support.
AMN33-S2 – A highly secure and fault-tolerant communication module, designed for continuous operation and system resilience in critical industrial systems.
CS3000 – Yokogawa’s flagship Distributed Control System (DCS), which integrates seamlessly with the ANT421, providing centralized control for complex industrial processes.
FLXA21 – A field analyzer for continuous process monitoring and diagnostics, easily integrated with the ANT421 to enhance process efficiency.

Popular Yokogawa Models

CS3000: A powerful Distributed Control System (DCS) designed for large-scale applications, integrated with communication modules like the ANT421 for centralized control and communication.
AMN32-S1: A robust communication module with dual Ethernet ports and redundancy features, perfect for mission-critical systems that require high reliability.
AMN33-S2: Designed for high-reliability applications, ensuring seamless communication and redundancy in complex industrial environments.
FLXA21: A versatile field analyzer used in a wide range of industries, integrating seamlessly with communication modules like the ANT421 for real-time process diagnostics.

Applications

The Yokogawa ANT421 Communication Module is designed for industries that rely on secure, continuous communication for real-time monitoring and process control:

Power Generation: The ANT421 facilitates communication between turbines, power plants, and central control systems, ensuring efficient power production, grid integration, and operational stability.
Oil & Gas: Enables real-time communication between offshore platforms, processing plants, and control centers, ensuring safe and efficient operations in the oil and gas industry.
Petrochemical & Chemical Processing: Provides reliable, secure communication for monitoring and controlling chemical processes, enhancing safety, operational efficiency, and regulatory compliance.
Water Treatment: Connects sensors, controllers, and monitoring systems to ensure optimal water quality management and compliance with environmental standards.
Manufacturing & Automation: Facilitates communication between automated machinery, control systems, and sensors, enhancing productivity and reducing system downtime in manufacturing environments.

Advantages

Dual Ethernet Ports: The ANT421 comes with dual Ethernet ports, providing network redundancy and ensuring that communication remains uninterrupted even if one network path fails.
Multiple Communication Protocols: The ANT421 supports a wide range of industrial protocols including Modbus TCP/IP, EtherNet/IP, OPC-UA, and PROFIBUS, enabling flexible and seamless integration with existing systems.
Enhanced Redundancy: With dual Ethernet ports, the ANT421 offers robust network redundancy, increasing system availability and minimizing the risk of communication failure.
Secure and Encrypted Communication: The OPC-UA protocol ensures secure, encrypted communication, safeguarding sensitive data and preventing unauthorized access.
Scalable Integration: The ANT421 is designed for easy integration into larger systems, allowing for future network expansion as your operational needs evolve.
Compact, Space-Saving Design: The rack-mountable design is space-efficient, making it easy to install in industrial control panels or enclosures without taking up valuable floor space.
Energy-Efficient: With a maximum power consumption of just 14W, the ANT421 is an energy-efficient solution that helps reduce operational costs.
Wide Temperature Range: The ANT421 operates in a broad temperature range of -20°C to +60°C, making it reliable even in harsh industrial environments.

Technical FAQs

What communication protocols are supported by the ANT421?
The ANT421 supports Modbus TCP/IP, EtherNet/IP, OPC-UA, and PROFIBUS, providing flexibility to connect with a wide variety of industrial systems.
Can the ANT421 be used in large-scale industrial systems?
Yes, the ANT421 is suitable for both small and large-scale systems, offering high-speed communication, redundancy, and scalability for mission-critical applications.
What is the power consumption of the ANT421?
The ANT421 has a maximum power consumption of 14W, making it an energy-efficient solution for industrial communication.
What is the operating temperature range of the ANT421?
The ANT421 operates within a temperature range of -20°C to +60°C, ensuring reliable performance in extreme industrial conditions.
Does the ANT421 support network redundancy?
Yes, the ANT421 features dual Ethernet ports, providing network redundancy for enhanced reliability and minimizing system downtime.
Can the ANT421 be integrated with other Yokogawa systems?
Yes, the ANT421 integrates seamlessly with Yokogawa’s CENTUM VP and ProSafe-RS systems, providing reliable communication for industrial process control.
How does the ANT421 ensure secure communication?
The OPC-UA protocol ensures secure, encrypted communication, protecting sensitive industrial data from unauthorized access.
What mounting options are available for the ANT421?
The ANT421 is rack-mountable, offering easy installation in control panels or enclosures for space optimization.
Which industries benefit from the ANT421?
The ANT421 is perfect for industries such as power generation, oil & gas, petrochemical, water treatment, and manufacturing, where secure and reliable communication is critical for operational success.
What are the physical dimensions of the ANT421?
The ANT421 measures 210 mm (W) x 105 mm (H) x 250 mm (D), providing a compact solution for easy integration into industrial control systems.