YOKOGAWA VC401-10 Vnet Coupler Unit | Replacement, Equivalent & Selection Guide
The YOKOGAWA VC401-10 is a Vnet/V net Coupler Unit designed for use within the CENTUM VP Distributed Control System (DCS) platform. It serves as a critical communication backbone component, coupling V-net segments to ensure reliable, high-speed data exchange between field controllers, I/O modules, and operator stations. This guide helps engineers identify compatible replacements, equivalent models, and make informed selection decisions.
Technical Specifications
| Attribute | Details |
|---|---|
| Part Number | VC401-10 |
| Manufacturer | YOKOGAWA Electric Corporation |
| Series / Platform | CENTUM VP DCS |
| Function | Vnet/V net Coupler Unit |
| Network Type | V-net (Vnet) — YOKOGAWA proprietary real-time control network |
| Communication Speed | 10 Mbps (V-net standard) |
| Topology | Bus / Coaxial segment coupling |
| Mounting | DIN rail / panel-mount (CENTUM VP cabinet) |
| Power Supply | 24 VDC (from CENTUM VP power bus) |
| Operating Temperature | 0°C to 55°C |
| Weight | Approx. 1,210 g |
| Country of Origin | Japan |
| HS Code | 8538.90.00 |
Compatible Replacement & Equivalent Models
When the VC401-10 is discontinued, damaged, or unavailable, the following models may serve as functional equivalents or replacements depending on system configuration:
- VC401-10S — Enhanced variant with extended diagnostics; direct drop-in for most CENTUM VP installations
- VC401-20 — Higher-density coupler for expanded segment configurations; requires firmware compatibility check
- VC401-00 — Base-level coupler; suitable for legacy CENTUM CS 3000 environments with adapter
- VL702 — V-net Link Unit; alternative for inter-domain communication in large CENTUM VP networks
- ESB Bus Coupler (YOKOGAWA) — For systems migrating from V-net to ESB architecture
⚠ Always verify firmware version, bus segment count, and cabinet compatibility before substituting. Contact Konmask for a free compatibility assessment.
Why Choose the Original Model
- Guaranteed Compatibility: Factory-validated for CENTUM VP; no integration risk
- Certified Performance: Meets YOKOGAWA’s real-time determinism requirements for process control
- Long-Term Support: Eligible for YOKOGAWA lifecycle support and firmware updates
- Reduced Commissioning Time: Plug-and-play within existing CENTUM VP cabinet architecture
- Traceability: Full factory documentation, serial number tracking, and warranty coverage
Typical Applications
- Oil & Gas — Upstream/downstream DCS backbone communication
- Petrochemical & Refining — Multi-domain CENTUM VP network coupling
- Power Generation — Turbine and boiler control system V-net segments
- Pulp & Paper — Continuous process control with redundant V-net rings
- Pharmaceutical — GMP-compliant DCS communication infrastructure
- Water Treatment — SCADA-integrated CENTUM VP field network
System Compatibility
- ✅ YOKOGAWA CENTUM VP (all revisions)
- ✅ CENTUM VP R6.xx firmware
- ✅ CENTUM CS 3000 (with compatibility adapter — consult Konmask)
- ❌ CENTUM CS 1000 — Not compatible
- ❌ ProSafe-RS — Not applicable (different network architecture)
Selection Guide
Use the following criteria to confirm the VC401-10 is the right choice for your project:
- Step 1 — Identify your DCS platform: Confirm CENTUM VP is in use. Check the cabinet label or engineering station software version.
- Step 2 — Count V-net segments: VC401-10 supports standard single-segment coupling. For multi-segment, consider VC401-20.
- Step 3 — Check firmware revision: Ensure your CENTUM VP firmware is compatible with VC401-10 hardware revision.
- Step 4 — Verify power bus: Confirm 24 VDC availability in the target cabinet slot.
- Step 5 — Confirm redundancy requirement: For redundant V-net rings, two VC401-10 units are required per domain.
Not sure? Send your system configuration to support@konmask.com and our engineers will recommend the correct part.
Quality Assurance & Sourcing
- All units sourced from authorized YOKOGAWA distributors or verified surplus channels
- 100% functional testing prior to shipment
- Anti-static packaging with humidity indicators
- Certificate of conformance and test report available on request
- Traceability documentation provided for regulated industries
- 90-day warranty on all units; extended warranty available
How to Order
- Online: Add to cart directly on Konmask.com
- Email RFQ: support@konmask.com — include quantity, required delivery date, and destination
- Phone / WhatsApp: +0086 19859288691
- Lead Time: In-stock units ship within 2–5 business days; ex-stock international delivery 5–10 days
- Payment: T/T, PayPal, credit card, and trade assurance accepted
Replacement & Compatibility FAQ
Q: Can VC401-10 replace VC401-00 directly?
A: In most CENTUM VP systems, yes — but verify the bus segment configuration and firmware version first. Contact us for a free compatibility check.
Q: Is VC401-10 compatible with CENTUM CS 3000?
A: With an appropriate adapter and firmware alignment, limited compatibility is possible. We recommend consulting YOKOGAWA documentation or our technical team.
Q: Do you supply new or refurbished units?
A: We supply both new (factory-sealed) and professionally refurbished units. All are tested and warranted. Condition is clearly stated on each listing.
Q: Can I get a datasheet or wiring diagram?
A: Yes — email support@konmask.com with your part number and we will provide available documentation.
Q: What is the lead time for urgent orders?
A: In-stock units can ship same day or next business day. Contact us with your urgency and we will prioritize accordingly.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
