Configured for high-speed industrial network integration in CENTUM VP and ProSafe-RS control platforms, the YOKOGAWA CARD VI702 (VI702 Interface Card) provides direct physical/electrical execution of 1 Gbps Vnet/IP communication over Ethernet platforms.

Hardware Specifications

DCS Process Loop Connectivity

The CARD VI702 utilizes a Vnet/IP protocol architecture to facilitate deterministic data exchange across control nodes. The module integrates galvanically isolated interfaces for both channel-to-channel and channel-to-bus connections, effectively mitigating common-mode interference and ground loop propagation within the network. This electrical isolation, combined with a 1 ms response time, ensures consistent data throughput for real-time process automation and safety system coordination, maintaining signal integrity across industrial Ethernet environments.

Frequently Asked Questions (FAQ)

Q: What diagnostic capabilities does the VI702 provide for network troubleshooting?

A: The card includes integrated diagnostic functions such as wire-break detection and short-circuit monitoring. Status is reported via front-panel LED indicators for power, transmission, and reception, providing immediate visual confirmation of the link integrity.

Q: Is the CARD VI702 compatible with standard off-the-shelf PCI Express slots?

A: The module is designed for installation in compatible Yokogawa control station PCI Express slots. While the form factor adheres to PCIe physical standards, the interface and driver layer are specific to Vnet/IP controller requirements; verify slot compatibility in the controller station manual prior to installation.

Field Installation Guidelines

• Mounting: Seat the card firmly into the designated PCI Express slot within the control station. Ensure the card bracket is secured to the chassis to prevent mechanical stress on the PCIe connector from vibration.
• Networking: Connect using shielded Cat5e Ethernet cabling to the RJ45 port. Keep network cables routed separately from high-voltage power conduits to minimize electromagnetic noise pickup.
• Power Verification: The module draws power directly from the 3.3 V DC rail. Ensure the host controller’s power supply capacity is sufficient to handle the 2.5 A peak current consumption during initialization and high-speed data bursts.
• Grounding: Ensure the host controller chassis is properly bonded to the facility protective earth (PE) bus. A low-impedance ground path is required to maintain the effectiveness of the module's internal galvanic isolation and surge protection features.