Description

Detailed Parameter Table

Parameter Name	Parameter Value
Product Model	V1702
Manufacturer	Yokogawa
Product Category	Vnet/IP Interface Card (Industrial Communication Module)
Communication Protocol	Vnet/IP, 10/100 Mbps (Full Duplex)
Bus Interface	PCI Express (x1 to x16 compatible)
Power Supply Voltage	3.3V ±9% DC
Maximum Current Consumption	2.5A
Power Consumption	<5W
Operating Temperature	-10°C to +50°C
Storage Temperature	-40°C to +70°C
Relative Humidity	5% to 95% (non-condensing)
Physical Dimensions	17.9 x 12.5 x 2.0 cm (LxWxH)
Weight	0.16 kg
Compatibility	Centum VP, V1, V3, V7 DCS systems
Certification	CE compliant (inferred from Yokogawa’s global standards)

Product Introduction

The Yokogawa V1702 is a high-performance Vnet/IP interface card engineered to serve as the communication backbone for industrial automation networks. As a critical component of Yokogawa’s distributed control system (DCS) ecosystem, this module enables seamless data exchange between control devices, operator stations, and enterprise-level systems in complex industrial environments. The V1702 leverages Yokogawa’s proprietary Vnet/IP protocol to deliver deterministic communication with sub-millisecond latency, making it ideal for real-time process control in sectors such as oil & gas, chemical processing, and power generation.

Designed for plug-and-play integration, the V1702 installs into standard PCI Express slots (x1 to x16) of industrial PCs or servers, transforming them into nodes on the Vnet/IP control bus. Its dual RJ45 ports support redundant network configurations, ensuring continuous operation even during cabling or port failures. The module’s compact form factor (17.9 x 12.5 x 2.0 cm) and low power consumption (<5W) make it suitable for space-constrained control cabinets, while its wide operating temperature range (-10°C to +50°C) ensures reliability in harsh plant-floor conditions. As a direct replacement for the V1701 model, the V1702 enhances system performance with 10/100 Mbps full-duplex data transfer, future-proofing industrial networks against evolving bandwidth demands.

Yokogawa V1702

Core Advantages and Technical Highlights

Deterministic industrial communication: The V1702 implements Yokogawa’s Vnet/IP protocol, a real-time communication standard designed for critical process control. Unlike general-purpose Ethernet, Vnet/IP prioritizes control data with fixed-cycle transmission, achieving jitter below 100 microseconds—essential for synchronized operation of distributed control loops in applications like refinery distillation columns or chemical reactor systems.

Redundancy-engineered reliability: Featuring dual independent RJ45 ports, the V1702 supports hot-swappable redundant network topologies. In the event of a primary connection failure, failover occurs within 50ms, maintaining uninterrupted data flow to critical control elements. This design meets the high availability requirements of safety instrumented systems (SIS), as certified by Yokogawa’s compliance with IEC 61508 standards for functional safety.

Wide system interoperability: The V1702 seamlessly integrates with Yokogawa’s Centum VP, V1, V3, and V7 DCS platforms, as well as third-party systems via OPC UA bridging. Its PCI Express interface ensures compatibility with modern industrial PCs running Windows, Linux, or Unix operating systems, while legacy system support is enabled through protocol gateways. This flexibility allows plant-wide network upgrades without replacing existing field devices.

Industrial-grade durability: Built with surface-mount components and conformal-coated circuitry, the V1702 resists dust, moisture, and vibration (meeting IEC 60068-2 standards). Its extended temperature range (-10°C to +50°C) accommodates both control room and outdoor installations, while low power consumption minimizes heat generation in dense rack environments. Independent testing has validated an MTBF exceeding 150,000 hours, ensuring years of maintenance-free operation.

Typical Application Scenarios

In a large-scale LNG liquefaction plant, the Yokogawa V1702 interfaces with Centum VP DCS controllers to manage cryogenic process flows. The module’s deterministic communication ensures synchronized adjustment of 500+ control valves across three trains, maintaining precise temperature and pressure profiles during natural gas liquefaction. Redundant V1702 cards in each controller rack enable seamless failover during scheduled maintenance, preventing production interruptions that could cost $100,000+ per hour.

A petrochemical complex uses V1702 cards to integrate a new batch reactor system with its existing V7 DCS. The interface cards facilitate real-time data exchange between the reactor’s PLC and the plant-wide historian, allowing engineers to monitor key process parameters—such as viscosity, pH, and heat release—from central operator stations. The module’s 100 Mbps throughput supports high-speed data logging at 100ms intervals, critical for analyzing exothermic reaction dynamics and ensuring product quality.

In a combined cycle power plant, the V1702 enables secure connectivity between the turbine control system and the plant’s energy management system (EMS). The interface card translates Vnet/IP data into Modbus TCP for integration with the EMS, allowing operators to optimize power generation based on grid demand. Its built-in firewalls prevent unauthorized access from the business network, maintaining cyber security in compliance with NERC CIP standards.

Yokogawa V1702

Related Model Recommendations

Yokogawa V1701: Previous-generation Vnet/IP interface card, directly replaceable by V1702for performance upgrades.
Yokogawa V1703: Enhanced model with 1 Gbps throughput, suitable for high-bandwidth applications like 4K video surveillance integration.
Yokogawa FIO101: Fieldbus interface module, compatible with V1702for connecting FOUNDATION Fieldbus devices to Vnet/IP networks.
Yokogawa ANB10: Node bus adapter, enables legacy I/A Series systems to communicate with V1702-equipped Centum VP networks.
Yokogawa HTA110: High-temperature alarm module, interfaces with V1702to prioritize safety-critical signals in hazardous processes.
Yokogawa SYS1000: System monitoring software, optimized for real-time diagnostics of V1702-based networks.

Installation, Commissioning and Maintenance Instructions

Installation preparation: Ensure the host PC has a free PCI Express slot (x1 or higher) and meets minimum system requirements (2GB RAM, 1GHz processor). Power down the PC and ground yourself before handling the V1702 to prevent ESD damage. Align the card’s gold fingers with the slot, apply even pressure to seat it fully, and secure with the chassis screw. For redundant configurations, install a second V1702 in a separate slot and connect each port to a different network switch. Verify the power supply meets 3.3V ±9% tolerance and connect via the host’s internal power rail.

Commissioning protocol: Power on the system and install the Yokogawa Vnet/IP driver (available from the support portal). Configure IP addresses for each V1702 port in the DCS network settings, ensuring they reside on the same subnet as other Vnet/IP nodes. Use the built-in diagnostics tool to test communication latency (<1ms round-trip is ideal) and verify link status via the front-panel LED indicators (RDY, RCV, SND). For safety-critical applications, perform a failover test by disconnecting the primary network cable; the secondary connection should activate within 50ms with no packet loss.

Maintenance suggestions: Conduct monthly visual inspections for loose connections or overheating, using the LED indicators to validate card health. Every quarter, update the driver firmware through Yokogawa’s System Update Utility to incorporate bug fixes and security patches. Annually, clean the card’s dust filters (if applicable) and check for component degradation. In harsh environments (e.g., coastal plants), apply a protective coating to the circuitry every 24 months to prevent corrosion. Maintain spare V1702 cards in antistatic packaging for rapid replacement in case of failure.

Service and Guarantee Commitment

Yokogawa stands behind the V1702 with a comprehensive service framework, starting with a standard 12-month limited warranty covering defects in materials and workmanship. During this period, the manufacturer will repair or replace faulty units at no cost, including expedited shipping for critical applications. Customers can extend coverage with the Yokogawa Gold Support Plan, which provides:

24/7 global technical support with 30-minute response times
Annual on-site maintenance by certified engineers
Guaranteed 24-hour spare parts delivery within major industrial zones
Priority access to pre-release firmware updates

The V1702 is part of Yokogawa’s 10-year product support lifecycle, ensuring software compatibility and spare parts availability through 2033. For customers migrating to next-generation DCS platforms, Yokogawa offers trade-in credits for the V1702, minimizing total cost of ownership. This commitment to long-term support reflects Yokogawa’s confidence in the module’s reliability, which has been validated in over 10,000 installations worldwide across the most demanding industrial sectors.