Product Overview

The Yokogawa AFV10D-S41101 represents the core processing intelligence of the CENTUM VP control architecture. This Duplexed Field Control Unit (FCU) is specifically engineered to host the LFS1500 control functions, managing complex automation tasks through the high-speed Vnet/IP communication protocol. Designed for 19-inch rack mounting, the unit provides a robust platform for FIO (Field network I/O) integration. Its primary purpose is to ensure zero-downtime operations by utilizing a fully redundant internal hardware structure, including dual-redundant power supplies and processors, which allows for seamless failover in the event of a hardware fault.

Hardware Infrastructure & Core Parameters

The following specifications detail the electrical and physical profile of the AFV10D-S41101 controller assembly.

• Redundancy Configuration: Fully Duplexed (CPU, Vnet/IP, and Power Supply)

• Network Protocol: Vnet/IP (1 Gbps Ethernet-based)

• Control Functionality: LFS1500 Field Control Station logic integrated

• Input Voltage: 100 V to 120 V AC (Single Phase)

• Frequency Tolerance: 50/60 Hz

• Power Consumption: 200 VA

• Mounting Standard: 19-inch Rack Mountable

• Operating Thermal Range: 0 to 55 degrees Celsius

• Total Unit Mass: 0.9 kg (900g)

• Physical Dimensions: 203 mm x 146 mm x 51 mm

• I/O Connectivity: Supports direct connection to local and remote FIO nodes

Operational Use Cases

This Field Control Unit is the preferred choice for large-scale industrial projects requiring the highest levels of functional safety and availability.

• Continuous Process Control: Ideal for refineries and petrochemical plants where a controller failure could lead to significant financial loss or safety hazards.

• Complex Logic Execution: Utilized in power generation facilities to manage high-speed PID loops and sophisticated interlocking sequences.

• Distributed I/O Management: Acts as a central brain for managing hundreds of digital and analog points distributed across various plant sections via Vnet/IP.

• System Modernization: Often used as a drop-in upgrade for older CENTUM systems to transition toward modern Ethernet-based plant networking.

FAQ

Q: What does the "S41101" suffix specifically indicate for this model?

A: The suffix code defines the hardware build: "S" for standard type, "4" for dual-redundant Vnet/IP and power, "1" for 100-120V AC input, and the final "1" confirms the inclusion of the LFS1500 control software license.

Q: Can this unit handle both analog and digital I/O modules?

A: Yes, the AFV10D is designed to interface with the complete range of Yokogawa FIO modules, facilitating the processing of 4-20mA, thermocouple, and discrete 24V DC signals.

Q: Is it possible to perform maintenance on the power supply while the unit is running?

A: Because this model is configured for dual-redundant power, it is possible to replace a faulty power module while the system remains energized and the process continues to run.

Q: How does Vnet/IP improve performance over older control networks?

A: Vnet/IP provides a 1 Gbps backbone, significantly increasing data throughput and reducing latency compared to traditional proprietary control buses, which is essential for large-scale DCS deployments.

Q: Does the unit come with the mounting hardware?

A: This specific model is designed for a standard 19-inch rack. While integrated into the chassis design, additional side rails or specialized cabinets may be required depending on your facility's installation standard.