YOKOGAWA VF701S1 Vnet/IP Communication Module

Description

YOKOGAWA VF701S1 Vnet/IP Communication Module

Product Dimensions：

The Yokogawa VF701S1 is a high-speed, high-density ProSafe-RS Safety Control Station (SCS) Bus Interface Module. It acts as a specialized communication module designed to bridge the safety control unit with the Vnet/IP high-speed control network in Yokogawa’s ProSafe-RS Safety Instrumented System (SIS) and CENTUM VP Distributed Control System (DCS) environments.

Product Detailed Description

The VF701S1 is an essential communication interface board installed in the controller node of Yokogawa’s safety instrumented systems. It enables real-time, fault-tolerant communication over a dual-redundant Vnet/IP network at 1 Gbps transmission rates.

By utilizing hardware-level redundancy and high-integrity signal processing, the VF701S1 ensures that critical safety interlocks, ESD (Emergency Shutdown) signals, and process data transmit reliably without packet loss or network degradation.

Technical Parameters

Product Advantages

• SIL3 High Integrity: Fully certified for use in Safety Integrity Level 3 (SIL3) loops, ensuring ultra-reliable transfer of safety-critical interlocks.
• Dual-Redundant Communication: Supports dual Vnet/IP paths; if one network cable or switch fails, the module instantly switches to the secondary path without interrupting safety logic.
• Seamless CENTUM Integration: Provides native, high-speed integration between Yokogawa’s ProSafe-RS safety system and CENTUM VP DCS without requiring complex third-party gateways.
• Deterministic Real-Time Performance: Engineered for low-latency transmission, ensuring critical safety trip commands are communicated in milliseconds.

Important Considerations & Precautions

• ESD Protection: The VF701S1 board contains highly sensitive microelectronic components. Always wear a grounded anti-static wrist strap during handling and installation.
• Correct Slot Placement: Ensure the module is inserted strictly into designated Vnet/IP interface slots within the safety node backplane.
• Power Down Before Insertion: Hot-swapping capabilities depend on the specific rack architecture; always consult the Yokogawa safety manual before replacing cards in a live system.
• Network Isolation: Maintain separate, secure physical cabling for Vnet/IP networks to prevent corporate IT traffic from interfering with plant safety buses.

Product Applications

The VF701S1 is used in large-scale process industries requiring SIL3 emergency response:

• Oil & Gas Refineries: Emergency Shutdown Systems (ESD) and Fire & Gas (F&G) monitoring networks.
• Petrochemical Plants: Inter-node safety communication for reactor protection and burner management systems (BMS).
• Offshore Platforms: Critical safety interlocking across distributed platform modules over Vnet/IP.
• Power Plants: Boiler safety systems and turbine overspeed trip communications.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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