Industrial Field Bus Extension Solution – YOKOGAWA SNT401-E3 | STARDOM FCN/FCJ Series
Where This Product Is Used
The YOKOGAWA SNT401-E3 Bus Repeater Slave Module is deployed in process automation environments where field bus signal integrity must be maintained over extended cable runs or across electrically isolated network segments. Typical deployment sites include:
- Oil & gas upstream/downstream processing plants
- Chemical and petrochemical batch control systems
- Power generation and utilities (DCS backbone extension)
- Water treatment and municipal infrastructure automation
- Pharmaceutical manufacturing with validated control networks
- Pulp & paper and food & beverage continuous process lines
Engineers specify this module when a STARDOM FCN or FCJ controller node must communicate reliably with remote I/O clusters located beyond standard bus distance limits, or when galvanic isolation between segments is required for safety or noise immunity.
Technical Specifications
| Attribute | Value |
|---|---|
| Part Number / SKU | SNT401-E3 |
| Manufacturer | YOKOGAWA Electric Corporation |
| Series / Platform | STARDOM FCN / FCJ Distributed Control System |
| Module Function | Bus Repeater – Slave Node |
| Bus Protocol | YOKOGAWA proprietary field bus (STARDOM internal bus) |
| Form Factor | DIN-rail / rack-mount module (STARDOM chassis compatible) |
| Weight | 1,380 g (as shipped) |
| Operating Temperature | 0 °C to 55 °C (standard industrial range) |
| Power Supply | Supplied via STARDOM backplane / bus connector |
| Isolation | Galvanic isolation between bus segments (E3 variant) |
| Country of Origin | Japan |
| HS Code | 8537.10 |
Specifications are based on YOKOGAWA published documentation. Confirm exact electrical parameters with the STARDOM FCN/FCJ hardware manual before installation.
Why Engineers Specify This Model
- Extended reach: Repeater architecture allows bus segments to span distances that exceed the native limit of a single STARDOM bus run, enabling large-footprint plant layouts without additional controllers.
- Galvanic isolation (E3 variant): The -E3 suffix designates the isolated version, protecting sensitive control electronics from ground loops and high-voltage transients common in heavy industrial environments.
- Transparent operation: Acts as a slave on the primary bus while regenerating the signal for the downstream segment — no additional programming or configuration required in the FCN/FCJ engineering tool.
- Proven YOKOGAWA ecosystem: Fully validated within the STARDOM platform, ensuring firmware compatibility and long-term spare-parts availability through YOKOGAWA’s global service network.
- Reduced wiring cost: Extending a single bus is significantly more cost-effective than running individual signal cables from each remote I/O module back to the controller cabinet.
Complete System Bill of Materials
The SNT401-E3 is typically ordered alongside the following STARDOM FCN/FCJ components:
- YOKOGAWA FCN-100 / FCN-500 Controller Unit
- YOKOGAWA SNT401 Bus Repeater Master Module (paired master node)
- YOKOGAWA ANT series I/O modules (AI, AO, DI, DO)
- STARDOM FCN power supply module (PSU)
- STARDOM FCN chassis / base unit
- Shielded twisted-pair bus cable (YOKOGAWA specified type)
- DIN-rail mounting hardware and terminal blocks
Contact support@konmask.com for bundle pricing on complete STARDOM FCN system builds.
Compliance & Industry Standards
- Designed and manufactured under ISO 9001 quality management system
- CE Marking – compliant with applicable EU directives for industrial control equipment
- RoHS compliant (hazardous substance restrictions)
- Compatible with IEC 61511 (functional safety – process industry) system architectures when used within a validated STARDOM FCN SIL-rated configuration
- YOKOGAWA factory acceptance testing (FAT) documentation available on request
Quality Assurance & Sourcing
Konmask.com sources YOKOGAWA modules through established industrial automation supply channels. Every unit offered is:
- Inspected for physical integrity and label authenticity prior to listing
- Stored in ESD-safe, climate-controlled warehouse conditions
- Shipped with original manufacturer packaging where available
- Traceable to batch/lot documentation upon request
We do not sell counterfeit, refurbished-as-new, or unverified grey-market parts. If you require a Certificate of Conformance or third-party inspection report, please contact us before ordering.
How to Source This Part
- Add to cart directly from this page for standard lead-time fulfillment.
- Request a quote for volume orders (>3 units) or project BOM pricing — email support@konmask.com.
- Expedited sourcing: If you have an urgent shutdown or turnaround requirement, call or WhatsApp +0086 19859288691 for same-day response.
- Export orders: We ship internationally with full commercial invoice and packing list documentation for customs clearance.
Application-Specific FAQ
Q: Can the SNT401-E3 be used with YOKOGAWA CENTUM VP or CS 3000 DCS?
A: No. The SNT401-E3 is designed exclusively for the STARDOM FCN/FCJ platform. CENTUM VP uses a different bus architecture (Vnet/IP). Contact us if you need CENTUM-compatible repeater modules.
Q: What is the maximum number of SNT401-E3 slave modules per master (SNT401)?
A: Refer to the STARDOM FCN hardware manual for the exact slave count per master segment. Typically one master supports multiple slaves depending on bus load and cable length.
Q: Is the -E3 variant the only isolated version?
A: The E3 suffix denotes the isolated variant. Non-isolated versions carry different suffix codes. Confirm your isolation requirement before ordering.
Q: Do you provide installation support or commissioning services?
A: Konmask.com is a parts supplier. For on-site commissioning, we recommend engaging a certified YOKOGAWA system integrator. We can provide technical documentation to support your engineering team.
Q: What is the typical lead time?
A: In-stock units ship within 1–3 business days. Out-of-stock items are sourced on request — typical lead time is 2–6 weeks depending on global availability.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
