Yokogawa AFV10D-S41101 Duplicated Field Control Unit (FCU)

Product Overview

The Yokogawa AFV10D-S41101 serves as the central control node for the CENTUM VP Distributed Control System (DCS). As a Duplicated (Duplexed) Field Control Unit, it is engineered for mission-critical applications where process downtime is not an option. This unit houses the processor modules that execute regulatory control, sequence logic, and data calculation. The "D" prefix signifies its redundant architecture, allowing two CPU modules to operate in parallel; if the primary controller encounters a fault, the secondary unit assumes control instantaneously without affecting the process.

Condition: 100% Brand New and Original Factory Sealed.

Part Number Breakdown: AFV10D-S41101

Yokogawa utilizes a specific suffix code to define the power, mounting, and networking specifications 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.

• 1: Vnet/IP Interface (Standard).

• 0: Always 0.

• 1: Basic hardware revision for optimized processor stability.

Technical Specifications

The AFV10D-S41101 provides the high-speed processing required for modern industrial automation.

• Processor Type: High-performance RISC processor.

• Control Network: Vnet/IP (1 Gbps Redundant Ethernet).

• I/O Bus: FIO (Field Input/Output) bus interface.

• Memory Protection: Battery-backed RAM for database retention.

• Power Supply: 100-120 V AC, 50/60 Hz (Dual-redundant).

• Mounting: Standard 19-inch rack-mount.

• Max I/O Capacity: Supports thousands of function blocks and sequence tables.

Engineering Advantages

• Seamless Redundancy (Duplexed): The AFV10D-S41101 is designed for high-availability "Hot Standby" operation. Both CPU modules synchronize data in real-time. In the event of a hardware failure on the active processor, the backup takes over in less than one scan cycle, preventing any "bumps" in the control output.

• High-Speed Vnet/IP Connectivity: By utilizing a 1 Gbps Vnet/IP network, this controller can communicate massive amounts of data to the Human Machine Interface (HMI) and other control stations with minimal latency. This is critical for large-scale plants with thousands of active loops.

• FIO System Integration: This FCU acts as the master for Yokogawa’s FIO (Field I/O) modules, such as the ADV151 and ADV551. The local bus architecture ensures rapid data refresh rates between the field sensors and the controller's logic engine.

• Rugged 19-Inch Design: The rack-mount form factor allows for clean installation within standard industrial cabinets. The internal layout is optimized for natural convection cooling, ensuring long-term reliability of the electronic components.

• Online Maintenance: Redundant components, including the power supply units and communication cards, are hot-swappable. Maintenance personnel can replace faulty hardware while the plant remains under active control, significantly improving the Mean Time to Repair (MTTR).

FAQs

• What is the main difference between AFV10D and AFV30D?

  The AFV10D is the standard Field Control Unit, whereas the AFV30D is a newer, higher-capacity model. The AFV10D remains a staple for many CENTUM VP installations due to its proven reliability and standard FIO compatibility.

• Does this unit include the CPU cards (CP461)?

  The AFV10D-S41101 specifies the chassis and power configuration. While it is designed to hold the CPU modules (typically CP461), those modules are often listed as separate line items in a complete system build.

• How often should the backup battery be replaced?

  The lithium battery (Part No. S9185FA) preserves the control database during power loss. We recommend a proactive replacement every 3 to 5 years during a scheduled plant turnaround.

• Can this unit be used in a 220V AC environment?

  No. This specific model (suffix "-4") is rated for 100-120 V AC. For 220-240 V AC power environments, you would require the suffix "-2" model.