Product Details

The Yokogawa VI701 serves as the primary hardware gateway between industrial workstations and the Vnet/IP control bus. This high-performance interface card integrates Human Interface Stations (HIS) and Engineering Stations (ENG) into the CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS). We supply this unit as 100% brand new, ensuring maximum data throughput for your mission-critical process network.

Product Overview

The VI701 card establishes a high-speed, 1 Gbps redundant link over Yokogawa’s proprietary Vnet/IP protocol. By installing this card into a standard PCI or PCI-X slot of an industrial PC, operators gain reliable access to real-time plant data and control parameters. The card handles the complex packet processing required for industrial Ethernet, offloading the communication burden from the PC’s main processor to maintain system responsiveness during high network traffic.

Part Number Breakdown

Yokogawa VI701 configurations often follow specific suffix codes for functional variations:

• VI701-S1: Standard type for Vnet/IP communication.

• VI701-S1/F9: Standard type with additional compliance or documentation for specific regional standards.

Technical Specifications

Engineering Advantages

• Redundant Path Reliability: The VI701 supports two physical ports, enabling a dual-redundant Vnet/IP configuration. If one network path fails, the card switches communication to the secondary path instantaneously without interrupting process control.

• High-Bandwidth Throughput: Utilizing 1 Gbps technology, this card prevents communication bottlenecks even in large-scale plant architectures with thousands of I/O points and high-resolution HMI graphics.

• Legacy Slot Compatibility: While optimized for PCI Bus 3.0, the card maintains physical and electrical compatibility with PCI-X slots at 33 MHz. This allows plants to utilize the card in a wide range of industrial server hardware.

• Plug-and-Play Integration: The VI701 utilizes autonegotiation for 1000BASE-T, simplifying the handshake process with industrial Layer 2 switches and reducing the time required for network commissioning.

• Industrial Hardening: Engineered for 24/7 continuous operation, the VI701 resists the electromagnetic interference (EMI) typical of industrial control rooms, ensuring data packets remain uncorrupted.

FAQs

Can I install the VI701 into a standard office PC?

While the VI701 uses a standard PCI interface, we strictly recommend installation in Yokogawa-certified industrial PCs. Industrial PCs provide the necessary cooling, power stability, and vibration resistance required for the VI701 to operate reliably within a DCS environment.

Does the VI701 require specific drivers?

Yes, the VI701 operates under the CENTUM VP or CS 3000 software environment. The communication drivers are included with the Yokogawa HIS or ENG software packages to facilitate seamless Vnet/IP bus recognition.

Is the VI701 backward compatible with Vnet (non-IP) systems?

No. The VI701 is specifically designed for Vnet/IP. If you are operating an older legacy Vnet (bus-based) system, you would typically require a different interface card like the VF701.

What is the maximum cable distance between the VI701 and the switch?

The 1000BASE-T standard allows for a maximum distance of 100 meters using CAT5e or CAT6 UTP cabling. For distances exceeding 100 meters, you must utilize a fiber optic media converter or an intermediate switch.