Yokogawa AFV30S-S31262 Field Control Unit

The Yokogawa AFV30S-S31262 Field Control Unit (FCU) is a high-performance and reliable controller within the CENTUM VP distributed control system. This model is designed for large-scale and complex process industries where high availability, fast response, and scalability are essential.

Equipped with advanced processing capability, robust redundancy options, and extensive I/O handling capacity, the AFV30S-S31262 ensures seamless plant operation. It supports multiple communication standards such as Vnet/IP, FOUNDATION Fieldbus, and HART, making it highly adaptable to diverse industrial environments.

Its modular structure allows for easy system expansion and hot-swappable maintenance, while its built-in diagnostics and cyber-secure architecture guarantee long-term system stability. This model is particularly suited for plants that cannot tolerate downtime, such as oil refineries, power plants, and chemical facilities.

Product Specifications

Product Applications

The AFV30S-S31262 is widely used in continuous and mission-critical industrial operations, including:

• Oil & Gas – Supervisory and process control in LNG plants, offshore platforms, and refineries.

• Power Generation – Turbine, boiler, and auxiliary plant automation in nuclear, thermal, and combined cycle plants.

• Petrochemicals – Precision control for distillation, polymerization, and chemical processing.

• Pharmaceuticals – Batch processing and compliance with GMP standards.

• Water & Wastewater – Advanced control for water treatment, pumping, and distribution systems.

• Metals & Cement – Reliable operation under high-load, continuous production environments.

Product Advantages

• High Reliability – Optional duplex CPU and redundant power/network modules ensure fault-tolerant operation.

• Scalable Architecture – Supports up to 2,000 I/O points, expandable for larger plants.

• Fast and Deterministic Control – 50 ms cycle ensures real-time responsiveness.

• Online Maintainability – Hot-swappable modules enable maintenance without system shutdown.

• Advanced Diagnostics – Built-in monitoring and logging simplify fault detection and recovery.

• Legacy Compatibility – Fully compatible with earlier Yokogawa CENTUM CS 3000 systems.

• Cybersecurity Built-in – Provides encrypted communication, user authentication, and system audit trails.

• Industry-Proven – Designed for long-term reliability in harsh process environments.

FAQ

1. What is the default control cycle time for the AFV30S-S31262?

   It operates on a standard 50 ms cycle, configurable for different process needs.

2. Does the unit support CPU redundancy?

   Yes, it can be configured with an optional duplex CPU for uninterrupted operation.

3. Which communication standards are supported?

   It supports Vnet/IP, Ethernet, FOUNDATION Fieldbus, and HART protocols.

4. Can the FCU be updated while running live operations?

   Yes, online configuration and firmware updates are supported without stopping the system.

5. What redundancy options are available for power supply?

   Dual redundant 24 V DC inputs can be configured to enhance reliability.

6. How does network redundancy work in this model?

   It provides dual Vnet/IP channels, ensuring communication continues in case of a network fault.

7. Are the modules hot-swappable?

   Yes, key modules including CPU, power supply, and communication cards can be hot-swapped.

8. What is the maximum I/O handling capacity?

   The unit supports up to 2,000 I/O points per FCU, expandable with additional racks.

9. How are system faults detected?

   The unit uses built-in self-diagnostics and detailed event logging for quick troubleshooting.

10. What security features are integrated?

    It includes encrypted communication, role-based access, and audit trail functions.