Technical Overview
The Yokogawa VF701 S3 functions as an interface card for the CENTUM VP and ProSafe-RS distributed control systems. This module provides a physical communication bridge between the system’s V net and field devices or subsystems. Its 10 Mbps transmission speed ensures deterministic data exchange for process control and safety applications. Furthermore, the VF701 S3 supports dual-redundant configurations, enhancing the overall network reliability.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Interface Card / V net Communication Module |
| System Compatibility | CENTUM VP, ProSafe-RS |
| Communication Protocol | V net (Yokogawa proprietary) |
| Transmission Speed | 10 Mbps |
| Cable Type | Coaxial (10BASE-2) |
| Maximum Cable Length | 185 meters per segment |
| Topology | Bus / Daisy-chain |
| Number of Nodes | Up to 64 |
| Redundancy | Dual-redundant (hot-standby) |
| Power Supply | 5 VDC (from backplane) |
| Current Draw | 500 mA |
| Diagnostic LEDs | RUN, TX, RX, ERH |
| Dimensions | Standard Yokogawa compact form factor |
| Weight | 0.2 kg |
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -20°C to 70°C |
| Humidity Tolerance | 10% to 90% RH, non-condensing |
| Certifications | CE, CSA |
Network Architecture and Communication
The Yokogawa VF701 S3 connects to Yokogawa’s V net backbone, enabling communication between control stations and remote field devices. Its bus topology supports up to 64 nodes and extends up to 185 meters with coaxial cabling. Consequently, this interface card delivers reliable and deterministic network performance for time-critical control loops.
Redundancy and Fault Tolerance
This module supports dual-redundant configurations, ensuring continuous communication even if the primary card fails. The VF701 S3 automatically detects network faults and switches to the backup path without operator intervention. This high availability makes the card suitable for continuous processes requiring uninterrupted data exchange.
Integration and Diagnostics
The VF701 S3 integrates seamlessly into CENTUM VP and ProSafe-RS system cabinets, simplifying system expansion and maintenance. Its LED indicators provide immediate visual status for transmit, receive, and error conditions. With its compact design and low power consumption, the interface card offers an efficient solution for V net connectivity.
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 146 × 51 × 203 mm |
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