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Product Overview
The Yokogawa VI451 Communication Module is a Vnet/IP to V net/VL net bus converter. It enables seamless communication between CENTUM VP Human Interface Stations (HISes) and CENTUM CS/CS 1000 systems. It serves as a core component in integrated process automation systems.
Key Applications
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Facilitates integration of legacy CENTUM CS/CS 1000 systems into modern CENTUM VP environments
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Supports distributed control in large-scale industrial plants
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Ensures stable real-time communication over Vnet/IP and legacy networks
Product Advantages
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Wide Compatibility: Connects multiple CENTUM generations (VP, CS 3000, CS 1000)
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Redundancy Options: Supports single or dual-redundant V net/VL net communication
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Flexible Power: Available in AC and DC power supply variants
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Robust Design: Rack-mountable with EMI shielding for industrial use
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High Reliability: Suitable for mission-critical control environments
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | VI451 (as part of AVR10D) |
| Communication – Vnet/IP Side | 100 Mbps, Full Duplex, RJ45 (UTP CAT5e or better) |
| Communication – V net Side | 10 Mbps, Coaxial, BNC connector, single/dual |
| Communication – VL net Side | 10 Mbps, Coaxial, BNC connector, single/dual |
| Mounting | 19-inch Rack, 4 x M5 Screws |
| Power Supply Options | 100–120 V AC / 220–240 V AC / 24 V DC |
| Power Consumption (AC) | 80 VA (100–120 V), 110 VA (220–240 V) |
| Power Consumption (DC) | 1.7 A (24 V DC) |
| Dimensions | 69 x 169 x 132.5 mm |
| Weight | 0.56 kg (module) |
| System Compatibility | CENTUM VP, CENTUM CS 3000, CENTUM CS 1000 |
| Redundancy Support | Duplexed or Single Communication Lines |
Frequently Asked Questions (FAQ)
Q1: What systems are compatible with VI451?
A1: It supports CENTUM VP, CENTUM CS 3000, and CENTUM CS 1000 systems.
Q2: What network types does VI451 bridge?
A2: It bridges Vnet/IP with legacy V net and VL net domains.
Q3: Does VI451 support dual redundancy?
A3: Yes, it supports both single and dual-redundant communication configurations.
Q4: What is the communication speed on the Vnet/IP side?
A4: 100 Mbps full duplex.
Q5: What type of connectors are used for V net and VL net?
A5: BNC-type coaxial connectors are used.
Q6: Can VI451 be used in hazardous industrial environments?
A6: Yes, when mounted in a metallic cabinet compliant with EMC standards.
Q7: What power supply options are available?
A7: 100–120 V AC, 220–240 V AC, and 24 V DC.
Q8: How is the VI451 mounted?
A8: It is designed for standard 19-inch rack mounting.
Q9: Is SEM (Sequence of Events Manager) supported?
A9: Yes, with firmware revision R6 or later.
Q10: Is the UTP cable included with the module?
A10: No, UTP cables must be sourced separately (CAT5e or better).
Related Yokogawa Models
| Model | Description | Communication Speed | Dimensions (mm) | Weight |
|---|---|---|---|---|
| VI451 | Vnet/IP to V net/VL net Converter | 100/10 Mbps | 69 x 169 x 132.5 | 0.56 kg |
| AVR10D | Duplexed V net Router | 10 Mbps | 132.5 x 440 x 169 | 5.8 kg |
| YCB141 | V net Cable (10BASE-2) | — | — | — |
| YCB148 | V net Terminator | — | ø14.5 x 24 | — |
| YCB149 | V net Converter Connector | — | ø17 x 34.8 | — |
| VP6H4450 | Multi-Project Connection Package | — | — | — |
Popular Yokogawa Models
| Model | Description | System/Application | Dimensions (mm) | Weight |
|---|---|---|---|---|
| PW402 | Power Supply Module | CENTUM VP | 170 x 90 x 100 | ~1.2 kg |
| CP451 | CPU Module | CENTUM VP | 120 x 130 x 160 | ~1.5 kg |
| ALR121 | Analog Input Module | Field Control Unit | 90 x 150 x 130 | ~0.8 kg |
| SAI533 | Analog Input I/O Module | ProSafe-RS | 130 x 160 x 120 | ~0.9 kg |
| NFAI841 | FOUNDATION Fieldbus Analog Input Module | CENTUM VP FF | 130 x 180 x 110 | ~1.1 kg |
| AMN34 | Multipoint Node Unit | SCADA | 100 x 140 x 100 | ~0.7 kg |
