What is the primary function of the YOKOGAWA VF702?

Its core function is to perform data translation between the workstation's internal PCIe bus and the system's V net control bus, enabling real-time, deterministic transmission of operation commands, process data, and alarms.

Which Yokogawa systems are compatible with the YOKOGAWA VF702?

It is primarily compatible with CENTUM CS 3000 and CENTUM VP Distributed Control Systems (DCS), requiring software version R3.05 or later.

How do you physically install the YOKOGAWA VF702?

With the computer powered off, vertically insert the VF702 into any available PCI Express slot (from x1 to x16) on the motherboard, and secure the bracket with a screw.

hat network transmission standard does the YOKOGAWA VF702 use?

It complies with the 10BASE-2 industrial Ethernet standard, which offers superior noise immunity in industrial environments.

VF702

Name: VF702
Brand: Yokogawa
SKU: VF702

Control Bus Interface Card

Product image is representative; revision or series may vary. Contact us to request a specific version.

Product Describe：

Control Bus Interface Card
Interface between the PCI
Express and V net
10BASE-2 compliance

Ask our team:

Phone: +86 180 3023 5313 E-Mail: sales13@apterpower.com

Dispatch Planning
Confirm stock and lead time with our team.

Dedicated Manager
Personalized one-to-one VIP service

ISO 9001:2015 Certified
Trusted quality management

Warranty Policy

Review the applicable warranty coverage and claim process.
Return Notice

Check the return process and obtain approval before sending an item back.
Shipping Method

Review shipping arrangements, transit estimates and delivery responsibilities.
Parts Availability

Browse stock listings and confirm current availability with our team.
How to order

See how to submit an enquiry, review a quotation and confirm an order.

Get a quick price for VF702

E-mail *

Mobile *

Company

Content *

Quantity *

Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)

Get a Quote

For more information on how your data is processed and stored by Apterpower please read our privacy policy

What happens after you enquire

1

Requirement review

We review the part number, quantity and delivery requirements and ask for any missing details.
2

Quotation and availability

We confirm the proposed item, condition, availability, price and estimated lead time in the quotation.
3

Order confirmation and dispatch

Once the quotation and purchasing details are agreed, your contact will coordinate the order and available dispatch information.

Technical specifications for VF702

Manufacturer:

Yokogawa
Product Category:

DCS Systems
Spare Part Number:

VF702
Estimated shipping dimensions:

2.1x19.5x12.6cm
Weight:

0.14 kg
Tariff Code:

8537101190
Counliy of origin:

Japan
Power supply voltage:

3.3 V ± 9 %
Current Consumption:

Max. 2.4 A
Host Interface & Power:

PCI Express x1 interface
Link Width / Speed:

x1, 2.5 GT/s signaling
Max. Distance:

185 m (When using 10BASE-2 cable only）
PCI Express Specification:

PCI Express CEM Specification 1.0a compliant
Connector Type:

BNC connector
Transmission Standard:

10BASE-2 compliance
Connection Method:

Coaxial cable with Model YCB146, T-type connector

Ask for Quote

Information

Overview Manuals Common Applications Product Precautions

The VF702 is a high-performance network interface card designed to bridge a PC/AT compatible computer (such as an engineering or operator workstation) directly to the Yokogawa proprietary V net control bus. By installing the VF702 card into a standard PCI Express (PCIe) slot, the host computer gains real-time, deterministic, and highly reliable data exchange capabilities with Field Control Stations and other nodes within the DCS environment. It is a vital component for ensuring seamless industrial process automation and monitoring.

10BASE-2 Ethernet standard
Fully compliant with the PCI Express CEM Specification 1.0a
Operates on a x1 lane width with a signaling rate of 2.5 GT/s

The VF702 serves as a dedicated hardware translator that solves this communication bottleneck. By integrating standard PCI Express (PCIe) computing platforms directly into the proprietary Yokogawa automation infrastructure, the card allows engineers to leverage modern high-speed computing power while maintaining full utilization of legacy control networks, successfully extending the operational lifespan and maximizing the return on investment (ROI) of existing plant assets without necessitating a total system overhaul.

Once seated firmly within the host machine's motherboard, the VF702 acts as a high-reliability communication gateway that performs continuous, bidirectional signal conversion. It translates high-throughput data packets from the host workstation's internal PCI Express bus architecture into the specialized, time-deterministic protocol required by the V net network, and vice versa.

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.

YOKOGAWA VF702 Control Bus Interface Card Manuals, Datasheets, Drivers, Link

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.

Oil & Gas Refining

In refineries, the VF702 connects operator workstations (HIS) to Field Control Stations (FCS) to enable centralized, real-time monitoring and control of high-risk, high-throughput cracking and distillation processes.

Petrochemicals & Polymer Production

Used in continuous production lines like ethylene cracking, polyethylene (PE), and polypropylene (PP) to transmit critical pressure, temperature, and flow data over V net, ensuring the safety and stability of complex exothermic reactions.

Thermal & Nuclear Power Generation

In power plants, the VF702 bridges engineering stations with boiler and turbine control systems (DCS) to facilitate real-time data exchange for generator speed regulation, load distribution, and safety interlocking systems.

Pharmaceuticals & Biotechnology

In FDA-compliant pharmaceutical plants, it links batch control management software with field hardware for fermenters and reactors, ensuring precise recipe execution and uninterrupted production audit trails.

Pulp & Paper Industry

In the control of large paper machines and digesters, the VF702 is responsible for transmitting high-frequency closed-loop control signals used for moisture, basis weight (QCS systems), and paper tension adjustments.

Mining & Mineral Processing

In mineral processing plants, it is used for the centralized scheduling of crushers, ball mills, flotation cells, and tailings treatment systems, ensuring heavy-duty smooth operation and interlocking protection of equipment.

When using the VF702 interface card, it is strictly prohibited to insert it into legacy PCI slots. Ensure the host computer is powered off before physical hardware handling or adjusting the onboard DIP switches (domain/station numbers). Due to its reliance on the 10BASE-2 standard, sharp bends in coaxial cabling (e.g., YCB146) must be avoided, and 50-ohm terminators must be installed at both ends of the network segment to prevent signal reflection. Furthermore, deploying dual-network redundancy is highly recommended, alongside regular monitoring of the onboard RDY, RCV, and SND LEDs to verify hardware health and real-time communication status.

Alternative Names

VF7O2 VI702 YCB146 VF702 S1

Technical notes

The YOKOGAWA VF702 is a high-performance control bus interface card based on the PCI Express (x1) architecture, specifically designed to connect DCS workstations to the V net control network. Supporting the 10BASE-2 transmission standard and offering full backward compatibility with its predecessor (VF701), it delivers strict real-time determinism and superior noise immunity. Additionally, the card features onboard LEDs for intuitive hardware self-diagnostics and communication status tracking, serving as a core component to ensure continuous, highly stable, and efficient industrial automation communications.

FAQ View All FAQ

What is the YOKOGAWA VF702 Control Bus Interface Card?

The VF702 is a network interface card installed in a computer's PCI Express slot, specifically designed to connect DCS workstations (such as engineering or operator stations) to Yokogawa's proprietary V net control bus.
What is the primary function of the YOKOGAWA VF702?

Its core function is to perform data translation between the workstation's internal PCIe bus and the system's V net control bus, enabling real-time, deterministic transmission of operation commands, process data, and alarms.
Which Yokogawa systems are compatible with the YOKOGAWA VF702?

It is primarily compatible with CENTUM CS 3000 and CENTUM VP Distributed Control Systems (DCS), requiring software version R3.05 or later.

How do you physically install the YOKOGAWA VF702?

With the computer powered off, vertically insert the VF702 into any available PCI Express slot (from x1 to x16) on the motherboard, and secure the bracket with a screw.
hat network transmission standard does the YOKOGAWA VF702 use?

It complies with the 10BASE-2 industrial Ethernet standard, which offers superior noise immunity in industrial environments.

Manufacturers

Supporting new and legacy automation

Whether you're maintaining existing equipment or sourcing parts for current systems, we provide fast, dependable supply you can rely on.

Please try to be as accurate as possible with your search.
We can quote you on 1000s of specialist parts, even if they are not listed on our website.
We can't find any results for “”.