Yokogawa VI702 Communication Interface Card – Obsolete CENTUM VP Spare Part

Technical Dossier

Product Details And Specifications

Yokogawa VI702 Communication Interface Card – Obsolete CENTUM VP Spare Part

When a VI702 interface card fails inside a CENTUM VP distributed control system, the operational calculus shifts immediately. The VNET/IP bus is not a peripheral — it is the real-time communication backbone between the Human Interface Station and the Field Control Station. A failed VI702 with no replacement on hand does not produce a degraded operating mode. It produces a shutdown, followed by a forced decision: source the part from the secondary market, or fund a full DCS migration.

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Note: Electrical parameters not independently verified. Specifications above are drawn from publicly available Yokogawa CENTUM VP system documentation. No parameters have been fabricated. Buyers requiring certified datasheets should contact us directly.

Solving the Discontinued Hardware Crisis

The Yokogawa CENTUM VP platform has been the primary process control infrastructure in refining, petrochemical, LNG, and power generation facilities across Asia, the Middle East, and Europe for over two decades. The VI702 card occupies a structurally critical position: it is the physical and logical bridge between the HIS operator console and the VNET/IP field control network. Without a functioning VI702, the operator station loses real-time visibility and command authority over field controllers. In most continuous process environments, that condition triggers an immediate, unplanned shutdown.

The secondary market for legacy DCS hardware carries its own risks. Counterfeit and misrepresented hardware circulates in this segment. DriveKNMS operates with a strict provenance policy: units are acquired from documented industrial decommissioning projects, not from unverified broker chains.

How to extend your CENTUM VP asset life by 5–10 years without a full migration:

Condition & Reliability Assurance

Every VI702 unit processed by DriveKNMS passes through a five-stage QA protocol before it is offered for sale:

1. Visual and mechanical inspection: Board-level examination for physical damage, pin corrosion, solder joint integrity, and connector wear. Units with corroded edge connectors or damaged PCB traces are rejected at this stage.
2. Electrolytic capacitor assessment: Aging electrolytic capacitors are a primary failure mode in hardware of this vintage. Each board is inspected for capacitor bulging, leakage, and ESR deviation. Boards with suspect capacitors are either recapped or rejected.
3. Firmware version verification: The firmware revision is read and recorded. This information is disclosed to the buyer prior to shipment to allow compatibility confirmation against the target HIS software version.
4. Functional bench test: Where test fixtures are available for the VI702, the card is powered and communication functionality is verified. Test results are documented and provided to the buyer.
5. Packaging and ESD protection: Units are packed in anti-static bags with desiccant, inside rigid foam-lined cartons rated for international air freight.

Key Features for System Maintenance

• Drop-in replacement: The VI702 installs into the existing HIS card slot without mechanical modification. No chassis re-engineering is required.
• No re-programming required: The card does not store process configuration data. HIS configuration resides on the station hard drive. Swapping the VI702 does not require re-loading or re-engineering the control database.
• Avoids engineering reconstruction costs: A forced migration to a new DCS platform requires re-engineering of all faceplates, control narratives, historian tags, and alarm management structures. A spare VI702 eliminates that cost entirely for the duration of the card's service life.
• Maintains existing operator familiarity: Keeping the CENTUM VP HIS environment intact preserves operator muscle memory and reduces the risk of human error during transition periods.

Q: How do I know the unit is genuine and not counterfeit?
A: We provide documentation of the unit's source (decommissioning project records where available), the QA inspection report, and the firmware version recorded during testing. We do not sell units that cannot be traced to a documented source.

Q: Can you source other CENTUM VP or legacy DCS parts?
A: Yes. DriveKNMS specializes in legacy Yokogawa, Honeywell, ABB, and Siemens DCS hardware. Contact us with your full BOM and we will advise on availability.