Yokogawa VI702 Vnet/IP Interface Card – Product Description

Overview

The Yokogawa VI702 is a PCI‑Express communication card designed for reliable and high-speed data exchange between operator stations (HIS) and field control stations (FCS) in Yokogawa DCS systems. Moreover, it replaces the legacy VI701 card while maintaining backward compatibility with existing driver software. Its compact design reduces installation complexity and ensures seamless integration into modern industrial PCs.

Technical Specifications

Communication

• Protocol: Proprietary Yokogawa DCS

• Connection Type: Coaxial cable interface

• Supported Systems: CENTUM CS1000, CS3000, CENTUM VP

• Transmission Speed: Real-time control cycle (~1-second updates)

• Redundancy: Supports automatic failover paths

Hardware & Interface

• Interface Type: PCI‑Express short slot

• Replacement: Designed for VI701 legacy card

• Driver Software: COMDRV driver included

• Installation: Setup via SETUP.BAT, removal via UNINSTALL.BAT

• IP Configuration: Manual IP address setup required

Indicators

• RDY Lamp: Lights when card is diagnosed as normal

• RCV Lamp: Lights when receiving signals on the control bus

• SND Lamp: Lights when sending signals to the control bus

Mechanical

• Form Factor: PCI‑Express card

• Dimensions: 120 × 68 mm

• Weight: 0.18 kg

• Cooling: Passive, fan-free design

Environmental & Compliance

• Operating Temperature: 0 °C to +55 °C

• Storage Temperature: −20 °C to +70 °C

• Relative Humidity: 5–95% non-condensing

• Certifications: CE compliant

• Origin: Manufactured in Japan

FAQ

Q1: Can VI702 replace the VI701 card directly?
Yes, it is designed as a direct replacement with backward driver compatibility.

Q2: What indicators are available for monitoring?
The card has RDY, RCV, and SND lamps for status, signal reception, and transmission.

Q3: Which Yokogawa systems support this card?
It supports CENTUM CS1000, CS3000, and CENTUM VP systems.

Q4: Is special cooling required for the VI702?
No, the card uses passive cooling and does not require a fan.

Q5: How is the PCI‑Express card installed?
Install via SETUP.BAT and remove with UNINSTALL.BAT; manual IP configuration is required.