Product Overview

The AFV10D-S41101 S2 is a high-availability Field Control Unit (FCU) designed for the Yokogawa CENTUM VP Distributed Control System (DCS). This unit provides the core processing capabilities necessary for executing real-time control logic and data acquisition. Featuring a duplexed architecture, the AFV10D-S41101 S2 ensures continuous operation by using redundant processor modules that automatically or manually switch over without process disruption in case of hardware failure.

Technical Specifications

Functional Comparison: AFV10D vs. AFV30D

Both the AFV10D and AFV30D are part of the Yokogawa FCU family but serve different purposes:

• AFV10D-S41101 S2: Ideal for legacy and mid-tier CENTUM VP systems, providing stable and proven technology with high-reliability duplexing.

• AFV30D: Part of a newer generation, offering higher memory capacity and faster processing, suitable for advanced and large-scale CENTUM VP environments.

The AFV10D is commonly preferred in existing plant installations where system consistency is critical, and the memory overhead required by the AFV30/40 series is not necessary.

Operational FAQ

What does the “S2” suffix represent on this model?
The “S2” designation refers to a hardware revision or style code update. It indicates that the AFV10D-S41101 S2 has updated internal components or firmware compatibility compared to the earlier “S1” series, while retaining the same form factor and core functions.

Does this unit include the CP451 processor modules?
Yes, the AFV10D-S41101 S2 is typically equipped with CP451 processor modules, which operate in pairs. One processor is the active unit, while the other is in standby mode. If the active processor fails, the standby module immediately takes over, ensuring uninterrupted process control.