Yokogawa SNT401-13S1 Network Interface Module | Replacement, Equivalent & Selection Guide
The Yokogawa SNT401-13S1 is a high-performance Network Interface Module designed for use within Yokogawa’s CENTUM VP and CS 3000 Distributed Control Systems (DCS). It provides reliable Vnet/IP or ESB bus communication between field control stations and engineering/operator stations, ensuring real-time data exchange in mission-critical industrial automation environments.
Technical Specifications
- Part Number: SNT401-13S1
- Manufacturer: Yokogawa Electric Corporation
- Series: CENTUM VP / CS 3000
- Module Type: Network Interface Module
- Communication Bus: Vnet/IP (Ethernet-based) / ESB Bus
- Mounting: DIN Rail / Rack-mount (FCS cabinet)
- Power Supply: 24 VDC (supplied via backplane)
- Operating Temperature: 0°C to 55°C
- Storage Temperature: -25°C to 70°C
- Humidity: 5% to 95% RH (non-condensing)
- Certifications: CE, UL (refer to Yokogawa datasheet for full compliance)
- Weight: Approx. 500 g
Compatible Replacement & Equivalent Models
When the SNT401-13S1 is unavailable or end-of-life, the following models may serve as functional equivalents or replacements depending on your system configuration:
- SNT401-13S2 – Revised hardware revision; verify firmware compatibility before substitution
- SNT401-11S1 – Earlier variant; reduced feature set, confirm bus protocol support
- ANT401-13S1 – Alternative network module for CENTUM VP; check slot compatibility
- Yokogawa ALR111 – Legacy ESB interface; suitable for CS 3000 systems only
- Third-party Vnet/IP gateways – Possible with protocol converters; engineering validation required
⚠ Always verify hardware revision, firmware version, and system software compatibility before substituting any module. Contact Konmask.com for pre-sales technical consultation.
Why Choose the Original SNT401-13S1
- ✅ Guaranteed compatibility with CENTUM VP R4.x–R6.x and CS 3000 R3.x
- ✅ Plug-and-play replacement — no re-engineering of I/O mapping required
- ✅ Yokogawa-certified hardware with full OEM traceability
- ✅ Stable long-term supply through authorized and verified distribution channels
- ✅ Reduced commissioning risk compared to third-party alternatives
Typical Applications
- Oil & Gas — upstream/downstream DCS communication backbone
- Petrochemical & Refining — process control network integration
- Power Generation — turbine and boiler control system networking
- Pulp & Paper — continuous process automation
- Pharmaceutical — batch process control with audit-trail requirements
- Water & Wastewater — SCADA/DCS hybrid architectures
System Compatibility
| DCS Platform | Compatible | Notes |
|---|---|---|
| CENTUM VP R4.x | ✅ Yes | Full support |
| CENTUM VP R5.x / R6.x | ✅ Yes | Full support |
| CS 3000 R3.x | ✅ Yes | ESB bus mode |
| CENTUM CS 1000 | ⚠ Partial | Verify slot type |
| ProSafe-RS | ❌ No | Different safety bus architecture |
Selection Guide
Use the following criteria to confirm the SNT401-13S1 is the right module for your application:
- Step 1 — Identify your DCS platform: Confirm CENTUM VP or CS 3000 and software revision
- Step 2 — Check bus type: Vnet/IP (Ethernet) vs. ESB (legacy coaxial); SNT401-13S1 supports both
- Step 3 — Verify slot position: Confirm FCS cabinet slot assignment in your system drawing
- Step 4 — Check hardware revision: Match suffix (-13S1) to your existing installed base for hot-swap compatibility
- Step 5 — Confirm quantity: Redundant configurations require 2× modules per FCS node
Not sure? Send your system drawing or part list to support@konmask.com for a free compatibility check.
Quality Assurance & Sourcing
- All modules sourced from authorized distributors or verified surplus channels
- Each unit undergoes visual inspection, functional verification, and anti-counterfeit screening
- Traceability documentation (COC, test reports) available upon request
- Packaging: original OEM packaging where available; otherwise ESD-safe anti-static packaging
- Warranty: 12 months from date of shipment (DOA replacement policy)
How to Order
- Add SNT401-13S1 to cart and proceed to checkout, or
- Email support@konmask.com with your PO or RFQ, or
- Call / WhatsApp: +0086 19859288691
Lead time: In-stock items ship within 1–3 business days. Ex-stock or sourced items: 5–15 business days. DHL / FedEx / UPS international express available.
Replacement & Compatibility FAQ
Q: Can SNT401-13S2 replace SNT401-13S1 directly?
A: In most cases yes, but confirm firmware version compatibility with your CENTUM VP software revision before hot-swapping.
Q: Is this module compatible with ProSafe-RS safety systems?
A: No. ProSafe-RS uses a dedicated safety bus architecture. A separate safety-rated module is required.
Q: Do you supply refurbished units?
A: Yes. All refurbished units are tested and certified. Condition (new/refurbished/surplus) is clearly stated at checkout.
Q: Can I get a datasheet or wiring diagram?
A: Yes — email support@konmask.com with your part number and we will provide the relevant Yokogawa technical documentation.
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 1 unit. Volume pricing available for orders of 5+ units.
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Contact: support@konmask.com | +0086 19859288691
