Yokogawa VF702 V net Interface Card
A PCI Express control-bus interface card providing dual V net connections for CENTUM and ProSafe system computers.
Product Overview
VF702 is Yokogawa’s Control Bus Interface Card for V net. It installs in a PCI Express slot and provides the computer interface used for control communication with CENTUM and ProSafe systems.
The front panel provides BUS 1 and BUS 2 BNC connections plus send and receive indicators. V net cabling requires the appropriate T-type connectors, station/domain settings and documented system release.
Performance
- Provides the computer-to-control-system interface for Yokogawa V net communication.
- Supports dual bus connections for the V net architecture.
- Displays send and receive activity for each bus through front-panel indicators.
- Can be used by Yokogawa packages such as Exaopc to access CENTUM systems over V net.
Technical Details
| Manufacturer | Yokogawa Electric Corporation |
|---|---|
| Model | VF702 |
| Product Name | Control Bus Interface Card for V net |
| Host Interface | PCI Express |
| Control Network | Yokogawa V net |
| Bus Connections | BUS 1 and BUS 2 |
| Physical Connectors | BNC; T-type connectors required for V net cable connection |
| Indicators | SND and RCV lamps for bus activity |
| Documented System Use | CENTUM and ProSafe system computer communication |
| General Specification | GS 33K55C10-50E |
| Release Consideration | Match the supported Yokogawa system and software release |
System Integration
- Record the host computer model, PCI Express slot, operating system and Yokogawa software release.
- Preserve domain/station settings and the V net topology before removing the card.
- Inspect both BNC/T-connector paths, termination and cable condition.
- After installation, validate both bus paths, card diagnostics and application communication.
Applications
- CENTUM engineering, operation and gateway computers using V net.
- ProSafe communication where the documented system configuration uses the card.
- Exaopc or related Yokogawa software connections to the control network.
FAQ
Which host-computer information is required before ordering VF702?
Provide the PC model, available PCI Express slot, operating system, CENTUM/ProSafe release, card suffix and existing driver/software package.
Can VF702 replace a VF701 card without an engineering review?
The host bus, supported system release and driver environment differ, so migration must be approved using the applicable Yokogawa compatibility documentation.
What cabling items are often missing from a VF702 quotation?
State whether BUS 1/BUS 2 BNC T-connectors, terminators, V net cable and any mounting hardware are required in addition to the card.
How should a VF702 communication fault be diagnosed before replacement?
Capture SND/RCV states, card diagnostics and software alarms, then check both coax paths, connectors, termination, station/domain settings and host driver status.
What proves a VF702 replacement is commissioned correctly?
Verify recognition by the host, both V net paths, station/domain identity, redundancy behavior and the actual CENTUM/ProSafe application data exchange.
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