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Product Introduction
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
| Parameter | Description |
|---|---|
| Model | AFV30S-S31262 |
| Type | Field Control Unit (FCU) |
| System Compatibility | Yokogawa CENTUM VP |
| Processor | 32-bit RISC high-speed processor |
| Memory | 256 MB SDRAM, 64 MB Flash memory |
| I/O Capacity | Up to 2,000 I/O points per unit (expandable with additional racks) |
| Redundancy | Supports optional duplex CPU, redundant communication, and redundant power modules |
| Communication Protocols | Vnet/IP, Ethernet, FOUNDATION Fieldbus, HART |
| Control Cycle Time | Typical 50 ms, configurable for advanced process loops |
| Diagnostics | Built-in self-diagnostics, event logging, and fault isolation |
| Operating Temperature | 0 to 55 °C |
| Storage Temperature | -20 to 70 °C |
| Power Supply | 24 V DC (redundant input supported) |
| Power Consumption | Approx. 48 W |
| Mounting | Rack-mounted unit |
| Dimensions (W × H × D) | 207 × 265.9 x 482.6 mm |
| Weight | 7 kg |
| Certification | CE, UL, CSA, ATEX for hazardous and industrial environments |
Product Applications
The AFV30S-S31262 is widely used in continuous and mission-critical industrial operations, including:
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Oil & Gas – Supervisory and process control in LNG plants, offshore platforms, and refineries.
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Power Generation – Turbine, boiler, and auxiliary plant automation in nuclear, thermal, and combined cycle plants.
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Petrochemicals – Precision control for distillation, polymerization, and chemical processing.
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Pharmaceuticals – Batch processing and compliance with GMP standards.
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Water & Wastewater – Advanced control for water treatment, pumping, and distribution systems.
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Metals & Cement – Reliable operation under high-load, continuous production environments.
Product Advantages
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High Reliability – Optional duplex CPU and redundant power/network modules ensure fault-tolerant operation.
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Scalable Architecture – Supports up to 2,000 I/O points, expandable for larger plants.
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Fast and Deterministic Control – 50 ms cycle ensures real-time responsiveness.
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Online Maintainability – Hot-swappable modules enable maintenance without system shutdown.
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Advanced Diagnostics – Built-in monitoring and logging simplify fault detection and recovery.
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Legacy Compatibility – Fully compatible with earlier Yokogawa CENTUM CS 3000 systems.
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Cybersecurity Built-in – Provides encrypted communication, user authentication, and system audit trails.
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Industry-Proven – Designed for long-term reliability in harsh process environments.
FAQ
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What is the default control cycle time for the AFV30S-S31262?
It operates on a standard 50 ms cycle, configurable for different process needs. -
Does the unit support CPU redundancy?
Yes, it can be configured with an optional duplex CPU for uninterrupted operation. -
Which communication standards are supported?
It supports Vnet/IP, Ethernet, FOUNDATION Fieldbus, and HART protocols. -
Can the FCU be updated while running live operations?
Yes, online configuration and firmware updates are supported without stopping the system. -
What redundancy options are available for power supply?
Dual redundant 24 V DC inputs can be configured to enhance reliability. -
How does network redundancy work in this model?
It provides dual Vnet/IP channels, ensuring communication continues in case of a network fault. -
Are the modules hot-swappable?
Yes, key modules including CPU, power supply, and communication cards can be hot-swapped. -
What is the maximum I/O handling capacity?
The unit supports up to 2,000 I/O points per FCU, expandable with additional racks. -
How are system faults detected?
The unit uses built-in self-diagnostics and detailed event logging for quick troubleshooting. -
What security features are integrated?
It includes encrypted communication, role-based access, and audit trail functions.
Recommended Related Models (Same Series/Category)
| Model | Description |
|---|---|
| AFV10D-S41201 | Entry-level FCU for smaller process applications |
| AFV20D-S41201 | Mid-capacity FCU with scalable I/O support |
| AFV30D-S41201 | Duplex-capable FCU for high-reliability systems |
| AFV30D-S41251 S2 | Enhanced duplex FCU with advanced redundancy |
| AFV30D-S41262 | Large-capacity duplex FCU with high I/O support |
| AFV40D-S41201 | High-performance FCU with faster processing and larger memory |
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