Technical Overview
The Yokogawa VI701 S1 functions as a high-speed interface card for the Vnet/IP control network within CENTUM VP systems. This module enables gigabit-speed communication between field control stations and human-machine interfaces, ensuring real-time data exchange across the plant. Its dual-redundant design provides automatic failover capabilities, maintaining network integrity even during hardware faults or cable disruptions. The VI701 S1 uses the IEEE 1588 precision time protocol to synchronize time-stamped events across the entire automation architecture.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Vnet/IP Interface Card |
| System Compatibility | CENTUM VP (R5 and later) |
| Communication Protocol | Vnet/IP (gigabit Ethernet-based) |
| Transmission Speed | 1 Gbps (1000BASE-T / 1000BASE-SX) |
| Physical Media | Twisted-pair (copper) or multi-mode fiber |
| Maximum Cable Length | 100 m (copper) / 550 m (fiber, 62.5 µm) |
| Network Topology | Star, Ring (with resilient Ethernet) |
| Time Synchronization | IEEE 1588 PTP (Precision Time Protocol) |
| Redundancy | Dual-redundant (active/standby) |
| Failover Time | ≤ 2 seconds |
| Power Supply | 5 VDC (from backplane) |
| Current Draw | 600 mA |
| Diagnostic LEDs | RUN, ACT, LINK, ERH, SYN |
| Dimensions (H x W x D) | 130 x 40 x 130 mm |
| Weight | 0.3 kg |
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -20°C to 70°C |
| Protection Class | IP20 |
| Certifications | CE, CSA, IEEE 1588 |
High-Speed Network Architecture
The Yokogawa VI701 S1 leverages a gigabit Ethernet foundation to support large data throughput for control and information networks. Its star or ring topology connects multiple control domains, while the IEEE 1588 synchronization aligns time-critical process data across the plant. Consequently, this interface card enhances control performance and simplifies data aggregation for enterprise-level analytics.
Redundancy and Fault Tolerance
This module’s dual-redundant architecture ensures that a single hardware failure does not compromise network availability. The VI701 S1 continuously monitors both active and standby paths, automatically switching within 2 seconds when it detects a fault. Consequently, this high availability suits critical continuous processes such as refining and power generation.
Integration and Advanced Diagnostics
The VI701 S1 integrates directly into CENTUM VP control stations, providing a plug-and-play solution for Vnet/IP connectivity. Front-panel LEDs deliver immediate visual feedback for link status, activity, synchronization, and error conditions. With its robust build and broad operating temperature range, this interface card ensures reliable performance in demanding industrial settings.
Details
| Weight | 0.3 kg |
|---|---|
| Dimensions | 130 × 40 × 130 mm |
Reviews
There are no reviews yet.