The Yokogawa VF311 is a high-reliability V-net Station Interface Card designed for the CENTUM CS 3000 and CENTUM VP Distributed Control Systems (DCS). Installed in the PCI slot of a Human Interface Station (HIS) or an Engineering Station (ENG), this card serves as the critical communication bridge between the control system's workstations and the proprietary V-net high-speed control network.
Connection Interface: Dual-redundant BNC connectors for coaxial cable attachment
Current Consumption: Maximum 1.5 A at 5 VDC
Features
Dual-Redundant Communication: Features dual BNC network ports to support dual-redundant V-net topologies, ensuring uninterrupted data flow even if one cable path fails.
Real-Time Data Exchange: Optimized for deterministic, low-latency communication to guarantee timely delivery of critical process alarms and control parameters.
Deterministic Performance: Utilizes token-passing token-ring network access management, preventing data collisions and ensuring high network stability under heavy plant loads.
Hot-Swappable Capabilities: Designed to allow straightforward card replacement and diagnostic checks without disrupting the overall DCS system architecture.
Robust Hardware Architecture: Engineered with high-reliability industrial components to meet rigorous plant control room standards for continuous, 24/7 operation.
