Description

Yokogawa VI701 Vnet/IP Interface Card

Configured for high-speed Vnet/IP network communication in CENTUM VP and CENTUM CS 3000 platforms, the Yokogawa VI701 (VI701 Vnet/IP Interface Card) provides direct physical and electrical execution through a PCI-based Ethernet communication interface for HIS and engineering workstation integration.

Suffix Breakdown & Model Matrix

The supplied documentation identifies a single fixed model configuration only. No official suffix or option-code decomposition is specified within the available technical data.

Hardware Specifications

Parameter	Specification
Model	VI701
Brand	Yokogawa
Origin	Japan
Product Type	Vnet/IP Interface Card
Communication Speed	1000 Mbps Full Duplex
Ethernet Standard	1000BASE-T
Connector Type	RJ45
Cable Requirement	CAT5e UTP
Maximum Transmission Distance	100 m
PCI Bus Specification	PCI Bus Specification Rev. 3.0
Bus Width/Frequency	32-bit / 33 MHz
Power Supply Voltage	5 V
Signal Voltage	3.3 V / 5 V
Current Consumption	Max. 2.5 A
Power Consumption	Derived from PCI bus supply load
Dimensions	106.68 mm x 167.64 mm
Weight	0.2 kg

DCS Communication Interface Characteristics

The VI701 communication architecture operates through deterministic Ethernet transport within Yokogawa Vnet/IP process control environments. The module supports 1000BASE-T transmission over CAT5e infrastructure using full-duplex communication paths between the workstation PCI subsystem and Layer 2 switching hardware.

Channel communication status is indicated through dedicated hardware LEDs. The RDY indicator confirms successful onboard diagnostic completion, while RCV and SND indicators reflect active packet receive and transmit conditions on the control communication bus.

The PCI interface supports mixed 3.3 V and 5 V signaling environments compliant with PCI Revision 3.0 backplane specifications. Installation into PCI-X mechanical slots is possible when electrical compatibility is maintained at 33 MHz operating frequency.

Frequently Asked Questions

Q: Does the VI701 support hot-swapping during system operation?
A: The supplied specifications define the module as a PCI bus interface card. Standard PCI hardware installation practice requires complete host workstation power shutdown before insertion or removal.

Q: What cabling limitations apply to the Ethernet connection?
A: The interface supports CAT5e UTP cabling with a maximum point-to-point distance of 100 m between the VI701 interface and the connected Layer 2 switch.

Q: What diagnostic functions are available directly on the hardware?
A: The module includes RDY, RCV, and SND LED indicators for onboard diagnostic confirmation and communication activity monitoring during network operation.

Field Installation Guidelines

Before installation, verify PCI slot voltage compatibility with 3.3 V / 5 V signaling requirements defined by the card specification. Confirm that the workstation chassis provides adequate airflow around adjacent PCI devices to avoid localized thermal accumulation.

Route Ethernet cabling separately from high-current AC power conductors and variable frequency drive output wiring to minimize induced electromagnetic interference on the Vnet/IP communication path.

Use properly terminated CAT5e cabling with maintained twist integrity up to the RJ45 termination point. Excessive cable untwist near the connector can increase susceptibility to packet transmission errors in industrial electrical environments.

Confirm Layer 2 switch configuration supports 1000BASE-T full-duplex operation before commissioning the communication link.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems