Yokogawa AFV10D-S41401 Duplicated Field Control Unit (FCU)

Product Overview

The Yokogawa AFV10D-S41401 is a high-performance Field Control Unit (FCU) designed for the CENTUM VP Distributed Control System (DCS). Unlike standard PLC modules, the AFV10D functions as the central "brain" of a control station, executing complex continuous control, sequence control, and advanced computation for industrial processes. The "D" in the prefix signifies its Duplicated (Redundant) architecture, ensuring that the control logic continues to execute without interruption even if a processor component fails.

Condition: 100% Brand New and Original Factory Sealed.

Part Number Breakdown: AFV10D-S41401

Yokogawa uses a detailed suffix code to define the power supply, mounting, and functional requirements of the FCU:

• AFV10D: Duplicated Field Control Unit (for Vnet/IP and FIO).

• -S: Standard type.

• 4: Dual-redundant 100-120 V AC Power Supply.

• 1: 19-inch Rack-mount type.

• 4: With Vnet/IP interface (Dual-redundant).

• 0: Always 0.

• 1: Basic hardware revision for updated processor stability.

Technical Specifications

The AFV10D-S41401 provides the processing power required for large-scale industrial automation.

• Processor: High-speed RISC processor for real-time control.

• Control Network: Vnet/IP (1 Gbps redundant Ethernet-based network).

• I/O Bus: FIO (Field Input/Output) bus for connecting to I/O modules.

• Memory Protection: Battery-backed RAM and non-volatile flash memory.

• Power Consumption: Max 200 VA (at 100-120 V AC).

• Mounting: 19-inch rack-mount (standard DCS cabinet).

• Redundancy: CPU, Power Supply, and Network modules are all dual-redundant.

Engineering Advantages

• Mission-Critical Redundancy: The AFV10D-S41401 is built for "Always-On" availability. Every critical component—including the CPU, power supply unit (PSU), and Vnet/IP communication bus—is duplicated. If the primary unit encounters a fault, the standby unit takes over in milliseconds without any "bump" in the process.

• Vnet/IP Communication: Utilizing 1 Gbps Vnet/IP technology, this controller handles massive amounts of data with low latency. This is essential for modern plants requiring high-speed coordination between multiple control stations and human-machine interfaces (HMIs).

• High Control Capacity: The AFV10D can manage thousands of function blocks, including PIDs, logic gates, and timers. Its large memory capacity allows for the storage of complex sequence tables required for batch processing and safety interlocking.

• Seamless FIO Integration: Designed specifically to work with Yokogawa’s FIO (Field I/O) series, this FCU supports a wide range of analog and digital modules (like the ADV151 or ADV551). The local I/O bus allows for rapid data exchange between the field sensors and the control logic.

• Simplified Maintenance: The modular design of the AFV10D-S41401 allows for hot-swapping of redundant components. Maintenance teams can replace a failed power supply or communication card while the process remains under active control, maximizing plant uptime.

FAQs

• What is the difference between AFV10D and AFV10S?

  The AFV10D is the Duplicated (redundant) version containing two CPU modules, while the AFV10S is the Single (non-redundant) version with one CPU. For critical processes, the AFV10D is always preferred.

• Does this unit include the CPU modules?

  The AFV10D-S41401 typically refers to the complete assembly including the base unit and power supplies, but the specific CPU modules (CP461 or similar) and Vnet/IP cards are often specified within the complete station configuration.

• Is the AFV10D compatible with older Vnet systems?

  The AFV10D is designed for Vnet/IP. If you are migrating from an older "Vnet" (coaxial) system, you will require a bus converter (such as the AVR10D) to bridge the communication protocols.

• What battery is used for memory backup?

  It uses a specialized lithium battery (Part No. S9185FA) to maintain the database in the event of a total power failure. We recommend replacing these batteries during scheduled preventive maintenance every 3-5 years.