Product Overview

The AFV30D-A41262 serves as the core processing unit of the Yokogawa CENTUM VP Distributed Control System (DCS). Designed as a duplexed Field Control Unit (FCU), it adopts a “Pair & Spare” architecture to deliver ultra-high system availability (up to 99.99999%) in mission-critical industrial environments.

This controller executes high-speed control logic while managing real-time communication between Human Interface Stations (HIS) and distributed I/O nodes. With hardware-level synchronization and minimal latency, the AFV30D-A41262 provides a highly stable and fault-tolerant platform for large-scale automation systems.

Technical Specifications

Operational Applications

The AFV30D-A41262 is deployed in central control systems where uninterrupted operation is critical.

Typical applications include oil refineries, chemical processing plants, and large-scale power generation facilities. Its duplex architecture enables continuous operation even during hardware faults, allowing maintenance or module replacement without interrupting active control processes. This makes it particularly suitable for safety-critical and high-availability systems.

Frequently Asked Questions

What does “Pair & Spare” mean?
This architecture uses two processors running in parallel with identical computations. If any inconsistency or failure is detected, the standby processor immediately takes over without affecting control output, ensuring seamless operation.

Can the power supply be changed to DC?
No. The A4 suffix specifies a 100–120 V AC configuration. For DC-powered systems (e.g., 24 V DC), alternative suffix models such as A2 must be selected.

Is the Vnet/IP license included?
The hardware is Vnet/IP-ready; however, licensing for network capacity and system expansion depends on the overall CENTUM VP system configuration and must be verified separately.