Yokogawa SDV144-S33 S2 Digital Input Module | Replacement, Equivalent & Selection Guide
The Yokogawa SDV144-S33 S2 is a 32-channel digital input (DI) module designed for use within Yokogawa’s CENTUM VP / CS 3000 distributed control system (DCS) platform. It accepts dry-contact or voltage-level discrete signals and converts them into digital data for the field control station (FCS). This page serves as a comprehensive selection, replacement, and compatibility reference for industrial automation engineers and procurement specialists.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | SDV144-S33 S2 |
| Manufacturer | Yokogawa Electric Corporation |
| Series | CENTUM VP / CS 3000 I/O |
| Module Type | Digital Input (DI) |
| Channel Count | 32 channels |
| Input Signal Type | Dry contact / Voltage input |
| Isolation | Channel-to-channel & channel-to-bus optical isolation |
| Communication Bus | V-net / ER Bus (CENTUM VP) |
| Power Supply | 24 VDC (supplied via I/O nest) |
| Operating Temperature | 0 °C to 55 °C |
| Mounting | I/O nest (nest-mounted, hot-swap capable) |
| Approvals | CE, UL (refer to Yokogawa GS sheet for latest) |
| Weight | Approx. 420 g |
Compatible Replacement & Equivalent Models
The following modules are functionally compatible or serve as direct/near-direct replacements for the SDV144-S33 S2 in CENTUM VP / CS 3000 systems. Always verify firmware revision and nest compatibility before substitution.
| Model | Brand | Channels | Compatibility Notes |
|---|---|---|---|
| SDV144-S33 S2 | Yokogawa | 32 DI | Original — this unit |
| SDV144-S33 S1 | Yokogawa | 32 DI | Earlier revision; functionally equivalent, check firmware |
| SDV144-S00 | Yokogawa | 32 DI | Base variant; confirm suffix compatibility with FCS |
| ADV151-P00 S2 | Yokogawa | 16 DI | Half-density alternative; requires nest re-mapping |
| SDV541-S33 | Yokogawa | 32 DI (HART) | Upgraded variant with HART pass-through capability |
Note: Third-party or aftermarket replacements are not recommended for safety-critical DCS loops. Contact Konmask for OEM-sourced spares.
Why Choose the Original Model
- Guaranteed firmware compatibility — S2 suffix ensures alignment with CENTUM VP R5.x and later FCS firmware revisions.
- Hot-swap support — Replace in live systems without shutting down the I/O nest, minimizing process downtime.
- Optical isolation — Protects the DCS backplane from field-side transients and ground loops.
- Yokogawa OEM quality — Factory-calibrated, fully tested, and traceable to Yokogawa’s quality management system.
- Long lifecycle support — Yokogawa provides extended spare-parts availability for CENTUM VP platform components.
Typical Applications
- Oil & gas upstream / downstream process control
- Petrochemical and refinery DCS integration
- Power generation plant monitoring (valve open/close status, motor run/stop)
- Pharmaceutical batch process discrete signal acquisition
- Pulp & paper mill automation
- Water treatment facility SCADA/DCS hybrid systems
System Compatibility
- CENTUM VP (R4.01 and later) — Primary platform
- CENTUM CS 3000 — Compatible with appropriate FCS and nest hardware
- ProSafe-RS — Not directly compatible; consult Yokogawa for safety-rated DI alternatives
- STARDOM — Not applicable; different I/O architecture
Confirm nest model (ANB10D, ANB11D, etc.) and FCS type (AFV10D, AFV30D, etc.) before ordering.
Selection Guide
Use the decision matrix below to confirm the SDV144-S33 S2 is the correct module for your application:
| Requirement | SDV144-S33 S2 Suitable? | Alternative if Not |
|---|---|---|
| 32-channel DI, CENTUM VP | ✅ Yes | — |
| 16-channel DI only needed | ⚠️ Oversized | ADV151-P00 S2 |
| HART pass-through required | ❌ No | SDV541-S33 |
| SIL-rated safety loop | ❌ No | ProSafe-RS DI module |
| CS 3000 legacy system | ✅ Compatible | Verify nest & FCS rev. |
| Redundant I/O required | ⚠️ Check config | Pair with SDV144 in redundant nest |
Quality Assurance & Sourcing
- Source: Konmask.com sources SDV144-S33 S2 modules from authorized distributors and verified surplus channels with full traceability documentation.
- Inspection: Each unit undergoes visual inspection, label verification, and functional pre-shipment checks.
- Warranty: 90-day replacement warranty against DOA (dead-on-arrival) defects.
- Documentation: Original Yokogawa GS (General Specifications) sheet and calibration records available on request.
- Export compliance: ECCN classification and export licensing support available for international orders.
How to Order
- Confirm your FCS model and nest type from your CENTUM VP engineering drawings.
- Verify the suffix revision (S2) matches your system’s firmware requirement.
- Add Yokogawa SDV144-S33 S2 to cart or contact us for bulk/project pricing.
- Provide your PO number, delivery address, and any required export documentation.
- Typical lead time: 3–10 business days (stock-dependent); expedited options available.
📧 support@konmask.com | 📞 +0086 19859288691
Replacement & Compatibility FAQ
Q: Can I use an SDV144-S33 S1 instead of the S2?
A: In most cases yes, but the S2 revision includes firmware and hardware improvements. Verify with your Yokogawa system integrator before substituting in a live system.
Q: Is the SDV144-S33 S2 hot-swappable?
A: Yes, when installed in a compatible CENTUM VP I/O nest with hot-swap enabled in the FCS configuration.
Q: Does this module support HART communication?
A: No. The SDV144 series is a standard DI module. For HART-enabled DI, consider the SDV541 series.
Q: Can Konmask provide a certificate of conformance (CoC)?
A: Yes. CoC and traceability documentation are available upon request for all orders.
Q: What is the difference between SDV144-S33 and SDV144-S00?
A: The suffix indicates the module’s configuration and compatibility revision. S33 denotes specific I/O characteristics and FCS compatibility; always match the suffix to your system’s BOM.
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Contact: support@konmask.com | +0086 19859288691
