YOKOGAWA AVR10D-A22010 Bus Converter

The Yokogawa AVR10D-A22010 is a Duplexed V net Router (Bus Converter) used in the CENTUM VP Distributed Control System (DCS).

 Its primary role is to bridge the gap between different network architectures, specifically connecting modern Vnet/IP domains to legacy V net or VL net domains.

1. Introduction

The AVR10D-A22010 acts as a "translator" and traffic manager between two generations of Yokogawa control networks. 

It allows the latest Human Interface Stations (HIS) and Engineering Stations (ENG) residing on a high-speed Vnet/IP (Ethernet-based) network to monitor and control Field Control Stations (FCS) located on an older V net (Coaxial-based) or VL net network. 

The "Duplexed" designation means it features redundant communication modules and power supplies for continuous operation.

2. Technical Parameter Table (A22010 Suffix)

3. Product Advantages and Features

Seamless Integration: Allows users to upgrade their operator consoles to CENTUM VP without having to replace their existing, functioning field controllers on the older V net.

Full Redundancy: Equipped with duplexed communication modules and duplexed power supplies. It supports "hot-swapping," meaning a module can be replaced while the router is online.

Deterministic Bridging: Ensures that the high-speed Vnet/IP data is properly synchronized with the 10 Mbps V net timing to maintain control integrity.

Diagnostic Transparency: Status and health information for both sides of the network are visible directly on the DCS monitoring screens.

Environmental Durability: Typically includes conformal coating (ISA G3) to withstand corrosive industrial gases.

4. Application Cases

Plant Modernization (Migration): A factory running an older CENTUM CS 3000 system wants to upgrade to CENTUM VP but wants to keep its existing wiring and controllers in place.

Multi-Domain Connectivity: Large facilities that have multiple "islands" of automation—some on modern Ethernet and some on legacy coaxial—need a central point to unify the data.

Geographical Expansion: Linking a newer plant extension (Vnet/IP) to an existing central control room that still uses the original V net backbone.

5. Related Models & Same Series

The AVR10D series varies primarily by its network interface and power requirements.

Other Models in the Same Series

AVR10D-Q22010: The version specifically for Dual-Redundant V net (10BASE-2 coaxial) instead of VL net.

AVR10D-A22020: The 220-240V AC version of the A22010.

AVR10D-A22040: The 24V DC power version, used in sites with battery backup systems.

Related System Components

VI451: Vnet/IP interface module for the controller side.

VC401: Vnet/IP interface card for the PC/HIS side.

YCB141: The specialized V net coaxial cable (10BASE-2) used to connect to the router.