Yokogawa ANT421 Fiber Optic Bus Slave Module

The Yokogawa ANT421 Fiber Optic Bus Slave Module is a critical component in Yokogawa’s distributed control and automation systems, designed to facilitate reliable, high-speed, long-distance communication between remote I/O stations and central control processors. Utilizing fiber optic transmission, the ANT421 offers secure, interference-resistant communication, making it ideal for industrial environments prone to electrical noise or where extended distances between system nodes are required.

As part of Yokogawa’s proven field control solutions, the ANT421 ensures seamless system integration, stable data exchange, and long-term performance in demanding industries such as oil & gas, power generation, chemical processing, and other sectors where reliable communication infrastructure is essential for safe and efficient operations.

Key Features

• Fiber optic communication ensures high-speed, interference-free data transmission

• Supports communication over extended distances, up to 10 kilometers (depending on fiber type)

• Compatible with Yokogawa’s DCS platforms, including the CENTUM and ProSafe series

• Provides secure, reliable communication for remote I/O stations and subsystems

• Resistant to electromagnetic interference (EMI) and harsh environmental conditions

• Designed for modular installation within existing control infrastructure

• Advanced diagnostic features for signal monitoring and fault detection

• Supports redundant configurations for high availability in critical applications

• Compact, space-efficient design for rack or panel-mounted systems

• Industrial-grade construction ensures continuous operation in harsh environments

Technical Specifications

Industry Applications

The Yokogawa ANT421 Fiber Optic Bus Slave Module is designed to support reliable, long-distance communication in various industrial sectors:

• Oil & Gas: Remote platform and pipeline communication for upstream, midstream, and downstream operations

• Power Generation: Fiber optic communication between distributed control units and central systems

• Chemical Processing: High-speed data transfer for monitoring and control in hazardous environments

• Water and Wastewater Treatment: Ensures stable communication over large treatment plant networks

• Pharmaceutical Manufacturing: Reliable data transmission for automated production lines and critical control points

• Metals and Mining: Provides robust communication infrastructure for geographically distributed operations

Product Advantages

• Long-Distance, High-Speed Communication: Enables reliable data transfer across large facilities or remote sites

• Electromagnetic Immunity: Fiber optic technology eliminates the impact of electrical noise and interference

• Redundant Network Support: Ensures system availability and fault tolerance for mission-critical applications

• Compact, Modular Design: Facilitates easy integration into existing control systems with minimal space requirements

• Advanced Diagnostics: Provides real-time monitoring of signal integrity and rapid fault detection

• Industrial Reliability: Built to withstand harsh environments with temperature, humidity, and vibration resistance

• Energy-Efficient Operation: Low power consumption, reducing overall system energy requirements

• Compliance with Global Standards: Certified to CE, UL, RoHS, and IEC standards for worldwide industrial use

• Seamless System Integration: Fully compatible with Yokogawa’s DCS platforms and automation infrastructure

• Proven Performance: Trusted by industries worldwide for reliable control and communication networks

Frequently Asked Questions (FAQ)

1. What is the primary function of the Yokogawa ANT421?

   It provides fiber optic communication between remote I/O stations and central control systems within Yokogawa’s DCS architecture.

2. What is the maximum distance supported by the ANT421?

   It supports communication distances up to 10 kilometers, depending on the type of fiber optic cable used.

3. Is the ANT421 compatible with Yokogawa’s CENTUM and ProSafe systems?

   Yes, it is designed for seamless integration with Yokogawa CENTUM, ProSafe, and other compatible platforms.

4. What are the advantages of using fiber optic communication?

   Fiber optics offer high-speed data transmission, immunity to electromagnetic interference, and support for long-distance connections.

5. Does the ANT421 support redundant configurations?

   Yes, it allows for redundant network setups to ensure high availability and fault tolerance.

6. Can the ANT421 operate in harsh industrial environments?

   Yes, it is designed for continuous operation within wide temperature and humidity ranges common in industrial facilities.

7. How does the ANT421 handle electrical noise?

   The fiber optic interface provides complete electrical isolation, preventing noise-related communication issues.

8. What diagnostic features are available on the ANT421?

   It includes signal quality monitoring, fault detection, and LED indicators for system status.

9. Is the ANT421 certified for international use?

   Yes, it complies with CE, UL, RoHS, and IEC standards, making it suitable for global applications.

10. What type of fiber optic cables does the ANT421 support?

    It is compatible with both single-mode and multi-mode fiber optic cables, depending on system requirements.