Yokogawa VI701 CENTUM VP Vnet/IP Interface Card

Product Overview

The Yokogawa VI701 acts as the high-speed communication gateway for CENTUM VP control systems, facilitating Vnet/IP connectivity via a standard PCI bus architecture. This interface card enables real-time, large-capacity data exchange between Human Interface Stations (HIS), Engineering Stations (ENG), and the control network. By utilizing Gigabit Ethernet technology, the VI701 ensures deterministic communication and low-latency synchronization across the Distributed Control System (DCS).

Technical Specifications

The VI701 integrates robust networking capabilities with standard industrial computer hardware:

Engineering Advantages

• Gigabit Throughput: The VI701 delivers 1000 Mbps full-duplex throughput. This high bandwidth eliminates data bottlenecks in complex plants with thousands of I/O points, ensuring the operator console updates instantly during process upsets.

• On-Board Diagnostics: Three dedicated LED indicators (RDY, RCV, SND) provide immediate hardware feedback. The RDY lamp illuminates only after the card passes internal self-diagnostics, while the RCV and SND lamps verify active traffic on the control bus, simplifying field troubleshooting.

• Standardized Infrastructure: The card utilizes standard CAT5e cabling and RJ45 connectors. This choice reduces installation costs by allowing the use of conventional industrial Ethernet infrastructure while maintaining high-fidelity signal transmission up to 100 meters.

• Legacy PCI Support: The VI701 complies with PCI Bus Specification 3.0. This allows engineers to sustain or upgrade existing industrial PC stations without requiring a total hardware overhaul, providing a cost-effective path for system expansion.

FAQs

• Is this Yokogawa VI701 card brand new or a refurbished pull?

  We offer this VI701 exclusively as 100% Brand New and Original equipment. Each card arrives in its anti-static packaging within the original Yokogawa factory box, ensuring peak performance and full manufacturer-rated lifespan.

• What do the different LED lamps indicate during operation?

  The RDY lamp confirms the card's internal health. The SND lamp flickers when the HIS/ENG sends data to the control network, and the RCV lamp activates upon detecting incoming signals from the Vnet/IP bus. If the RDY lamp remains off, the card has failed its power-on self-test.

• Does the VI701 require a specific type of Ethernet cable?

  Yes. You must use CAT5e Enhanced Category 5 UTP cable or better to maintain 1000Base-T compliance. Using lower-rated cables will result in packet loss or reduced communication speeds, compromising DCS stability.

• What is the maximum distance allowed for a direct connection?

  The VI701 supports a maximum cable length of 100 meters between the card's RJ45 port and the Layer 2 switch. For distances exceeding 100 meters, you must implement fiber optic converters or additional industrial switches.