The Yokogawa AFV30D‑A41262 is a Duplexed Field Control Unit (FCU) used in industrial distributed control systems (DCS) as the core controller in a field control station (FCS) for

 process automation. It’s part of Yokogawa’s AFV30D series — designed for high availability and fault‑tolerant control in demanding environments like power plants,

petrochemical facilities, water treatment, and more.This device is a field control processor that executes control logic close to field I/O modules, helping to

 maintain real‑time control and monitoring while reducing communication delays back to central control. It is typically used with Vnet/IP and FIO

 networks in systems such as Yokogawa’s CENTUM VP automation platform.

Frequently Asked Questions

Q1. What is a Duplexed Field Control Unit?
A Duplexed Field Control Unit is a control processor module in Yokogawa’s distributed control system architecture that combines two parallel

hardware paths (communication and power) so that if one fails, the other continues operation — improving reliability and uptime.

Q2. Where is the AFV30D‑A41262 used?
It’s used in industrial process automation where continuous control and high reliability are essential — such as power

generation, chemical processing, oil & gas, and large automation systems using Yokogawa’s CENTUM family.

Q3. What does “duplexed” mean?
“Duplexed” means the unit includes redundancy in networking (Vnet/IP) and power supply,

ensuring control continuity if one component path fails.