Technical Functional Overview
The AVR10D-Q22021 is a high-reliability Vnet/IP interface module engineered for the Yokogawa CENTUM VP integrated production control system. It provides deterministic, high-speed communication between the Field Control Station (FCS) and the plant-wide Vnet/IP control network.
Designed for mission-critical applications, the AVR10D supports duplexed (dual-redundant) configurations to ensure continuous system availability. It manages real-time control data exchange with high integrity, prioritizing time-sensitive control signals over non-critical management traffic to maintain stable plant operation.
The Q22021 suffix identifies a specific hardware revision and certification configuration, commonly including enhanced environmental protection such as G3 conformal coating for corrosive industrial environments.
Detailed Engineering Specifications
| Parameter | Specification |
|---|---|
| Network Interface | Vnet/IP (1000Base-T / 100Base-TX) |
| Communication Speed | 1 Gbps / 100 Mbps (Auto-sensing) |
| Redundancy | Fully supports dual-redundant (Duplexed) architecture |
| Platform Compatibility | Yokogawa CENTUM VP Field Control Stations (FCS) |
| Connection Ports | Dual RJ-45 (Redundant path connectivity) |
| Isolation | Transformer isolation for noise immunity |
| Power Supply | 5 V DC |
| Current Consumption | Max. 1.5 A |
| Environmental Protection | Q22021 revision (often G3 conformal coating) |
| Reliability | High MTBF for continuous industrial operation |
Installation and Integration Context
The AVR10D-Q22021 is installed in the processor module slot of a Yokogawa control node. Its function is to bridge the internal control processor with the Vnet/IP plant network.
In duplexed configurations, two modules operate in an active/standby arrangement with hardware-level synchronization. This enables sub-millisecond switchover in the event of a communication path or module failure, ensuring uninterrupted control system operation.
Technical FAQ
Does the AVR10D-Q22021 support standard Ethernet protocols?
Although it uses standard Ethernet physical layers, it is optimized for the proprietary Vnet/IP real-time control protocol. It is not intended to function as a general-purpose IT network interface.
What is the difference between AVR10D and AVR10S?
The “D” in AVR10D indicates Duplex capability (redundant operation in paired configuration). The “S” version supports Simplex (single-module) configurations where redundancy is not required.
Is this module hot-swappable?
Yes. In a redundant setup, one AVR10D-Q22021 module can be replaced while the companion module maintains active communication, provided system status and redundancy health are verified prior to removal.
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