Yokogawa VC401-11 S1 V Net Coupler Module | Replacement, Equivalent & Selection Guide
The Yokogawa VC401-11 S1 is a V Net Coupler Module designed for use in Yokogawa CENTUM VP Distributed Control Systems (DCS). It serves as a critical network interface component, enabling reliable V Net (Vnet/IP) communication between field control stations and engineering/operator stations. This guide covers technical specifications, compatible replacements, equivalent models, and selection criteria to help industrial automation engineers make informed procurement decisions.
Technical Specifications
- Part Number / SKU: VC401-11 S1
- Manufacturer: Yokogawa Electric Corporation
- Series: CENTUM VP / V Net Coupler Series
- Module Type: V Net Coupler Module
- Network Protocol: Vnet/IP (V Net over Ethernet)
- Communication Interface: V Net (proprietary Yokogawa control network)
- Mounting: DIN rail / rack-mount (CENTUM VP chassis)
- Power Supply: Supplied via backplane (CENTUM VP station)
- Operating Temperature: 0°C to 55°C
- Storage Temperature: -25°C to 70°C
- Humidity: 5% to 95% RH (non-condensing)
- Weight: Approx. 300 g
- Compliance: CE, UL (refer to Yokogawa datasheet for full certifications)
- Country of Origin: Japan
Compatible Replacement & Equivalent Models
When the original VC401-11 S1 is unavailable or end-of-life, the following models may serve as functional replacements or equivalents depending on your system configuration. Always verify firmware and hardware revision compatibility before substitution.
- VC401-11 S2 — Revised suffix variant; check Yokogawa revision notes for functional differences
- VC401-10 — Earlier generation V Net Coupler; may require firmware update
- VC401-12 — Enhanced variant with extended diagnostics; backward compatible in most CENTUM VP configurations
- ANB10D / ANB11D — V Net Bus Coupler modules used in CENTUM CS 3000; not direct drop-in replacements but functionally analogous in legacy migration projects
- Third-party equivalents: No certified third-party drop-in replacements are currently available for this proprietary Yokogawa V Net module. OEM sourcing is strongly recommended.
⚠ Note: Always consult Yokogawa’s compatibility matrix or contact a certified Yokogawa system integrator before substituting modules in a live DCS environment.
Why Choose the Original Model
- Guaranteed Compatibility: Factory-validated for CENTUM VP architecture — no integration risk
- Firmware Integrity: Ships with Yokogawa-certified firmware, ensuring stable Vnet/IP communication
- Long-term Support: Covered under Yokogawa’s lifecycle management and spare parts program
- Safety & Reliability: Meets IEC 61511 / IEC 61508 functional safety requirements when used in certified configurations
- Warranty: Backed by manufacturer warranty and Konmask.com quality assurance
Typical Applications
- Oil & Gas — upstream/downstream DCS control networks
- Petrochemical & Refining — process control and safety instrumented systems
- Power Generation — turbine and boiler control systems
- Pulp & Paper — continuous process automation
- Pharmaceutical — batch process control (FDA-compliant environments)
- Water & Wastewater — SCADA and DCS integration
- Chemical Processing — multi-loop control and interlock systems
System Compatibility
- Primary System: Yokogawa CENTUM VP (all revisions)
- Compatible Stations: FCS (Field Control Station), BCV (Bus Converter), EWS (Engineering Workstation)
- Network: Vnet/IP — 100 Mbps Ethernet-based V Net
- Not Compatible With: CENTUM CS 3000 (direct swap); Yokogawa ProSafe-RS (different network architecture)
- Software: Compatible with CENTUM VP R4.xx, R5.xx, R6.xx engineering environments
Selection Guide
Use the following criteria to confirm the VC401-11 S1 is the correct module for your application:
- ✅ Your DCS platform is Yokogawa CENTUM VP
- ✅ You require a V Net Coupler for Vnet/IP network segmentation or extension
- ✅ Your system revision is compatible with the S1 hardware suffix
- ✅ You need a spare or replacement for an existing VC401-11 S1 in service
- ❌ If your system is CENTUM CS 3000, consider the ANB10D/ANB11D series instead
- ❌ If you need SIL-rated safety network modules, consult Yokogawa ProSafe-RS documentation
Quality Assurance & Sourcing
- Source: Genuine Yokogawa OEM parts — new, refurbished, or tested-used stock clearly labeled
- Inspection: Each unit undergoes visual inspection and functional verification before shipment
- Packaging: Anti-static ESD packaging with original or equivalent protective materials
- Documentation: Certificate of conformance available upon request
- Traceability: Serial number and batch records maintained for all units
- Lead Time: In-stock units ship within 1–3 business days; sourced units 7–21 days
How to Order
- Confirm your part number: VC401-11 S1 (verify hardware revision with your system documentation)
- Specify quantity and required condition (new / refurbished / tested-used)
- Contact us for pricing, availability, and lead time
- Submit your purchase order via our website or by email
- Receive order confirmation with tracking information within 24 hours
📧 Email: support@konmask.com
📞 Phone/WhatsApp: +0086 19859288691
🌐 Website: https://konmask.com
Replacement & Compatibility FAQ
Q: Can the VC401-11 S1 be used in a CENTUM CS 3000 system?
A: No. The VC401-11 S1 is designed for CENTUM VP. For CS 3000, use the ANB10D or ANB11D series.
Q: Is the VC401-11 S2 a direct replacement for the S1?
A: In most cases yes, but verify the hardware revision compatibility in your CENTUM VP system documentation before swapping.
Q: Do you supply refurbished units?
A: Yes. All refurbished units are clearly labeled and have passed functional testing. Certificates of conformance are available.
Q: What is the warranty on this module?
A: New OEM units carry the standard Yokogawa warranty. Refurbished units carry a Konmask.com 90-day functional warranty.
Q: Can I get a datasheet or wiring diagram?
A: Yes. Contact support@konmask.com with your request and we will provide available technical documentation.
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Contact: support@konmask.com | +0086 19859288691
