YOKOGAWA TAHXD16-3PEM – High-Density Digital I/O Master Module | CENTUM VP DCS Platform
Engineering Background
The YOKOGAWA TAHXD16-3PEM is a high-density digital I/O master module engineered for the CENTUM VP Distributed Control System (DCS) platform — Yokogawa’s flagship process automation architecture deployed across refining, petrochemical, power generation, and pharmaceutical industries worldwide. As a master module within the field control station (FCS) architecture, the TAHXD16-3PEM serves as the primary communication and coordination node for downstream I/O expansion modules, enabling deterministic, high-speed data acquisition and control output across complex process loops.
Product Positioning
Designed for procurement engineers and system integrators who require a verified, drop-in replacement or expansion component for existing CENTUM VP installations, the TAHXD16-3PEM delivers OEM-grade reliability without the lead times associated with new factory orders. Konmask.com maintains a curated inventory of genuine Yokogawa automation hardware, sourced through authorized channels and subject to multi-point quality inspection before dispatch.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | TAHXD16-3PEM |
| Manufacturer | YOKOGAWA Electric Corporation |
| Product Series | CENTUM VP Field Control Station (FCS) |
| Module Type | Digital I/O Master Module |
| I/O Channel Count | 16 Channels (Digital) |
| Communication Interface | Vnet/IP (Ethernet-based, IEC 61784-2 compliant) |
| Power Supply Voltage | 24 VDC (supplied via backplane) |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -25°C to +70°C |
| Relative Humidity | 5% to 95% RH (non-condensing) |
| Enclosure / Form Factor | DIN-rail mountable, plug-in card module |
| Approvals / Certifications | CE, UL, IECEx (consult datasheet for region-specific listings) |
| Weight | Approx. 880 g |
| Country of Origin | Japan |
| Warranty | 12 months from date of shipment (Konmask standard) |
Note: Full electrical and mechanical specifications are available in the official YOKOGAWA CENTUM VP Hardware Engineering Manual. Contact [email protected] for the latest datasheet.
Proven Application Environments
- Oil & Gas Refining: Continuous process monitoring and interlock control within FCS-based safety loops
- Petrochemical Plants: High-channel-count digital I/O expansion for reactor and distillation column control
- Power Generation: Turbine and boiler control systems requiring deterministic scan-cycle performance
- Pharmaceutical Manufacturing: FDA 21 CFR Part 11-compatible DCS environments with audit trail requirements
- Pulp & Paper / Water Treatment: Multi-loop process automation with redundant FCS configurations
- LNG & Offshore Platforms: Hazardous area installations with certified module variants
Engineering Advantages
- Native CENTUM VP Compatibility: Plug-and-play integration with existing FCS backplanes — no firmware patching or custom configuration required
- High-Density I/O: 16 digital channels per module reduce cabinet footprint and wiring complexity versus discrete relay panels
- Deterministic Scan Performance: Synchronized with CENTUM VP’s real-time control bus for sub-millisecond I/O update cycles
- Hot-Swap Capable: Supports online module replacement in redundant FCS configurations, eliminating planned shutdown requirements
- Vnet/IP Integration: Leverages Yokogawa’s proprietary high-speed control network for seamless HIS/ENG station visibility
- Long Product Lifecycle: CENTUM VP platform supported through 2030+ with Yokogawa’s committed lifecycle policy
System Architecture & Signal Flow
Within a CENTUM VP Field Control Station, the TAHXD16-3PEM occupies the master module slot of an I/O nest. It communicates upstream to the FCS processor via the Vnet/IP control bus and downstream to field devices through terminal boards (e.g., TB series) or marshalling cabinets. The module manages channel scanning, signal conditioning, and data packetization, presenting process values and control outputs to the FCS CPU at the configured scan rate (typically 100 ms to 1 s, application-dependent).
Signal flow: Field Device → Terminal Board → TAHXD16-3PEM → FCS CPU (via Vnet/IP) → HIS/SCADA
Sourcing & Quality Verification
- Genuine OEM Hardware: All YOKOGAWA modules at Konmask.com are sourced from authorized distributors or decommissioned plant inventories with full traceability documentation
- Pre-Shipment Inspection: Each unit undergoes visual inspection, connector integrity check, firmware version verification, and functional power-on test
- Condition Grading: Units are graded as New (sealed OEM), Refurbished (tested, cleaned, re-labeled), or Used-Tested (functional, cosmetic wear acceptable) — grade confirmed at order
- Documentation Package: Certificate of conformance, inspection report, and original datasheet available upon request
Procurement Process
- Submit RFQ: Email [email protected] with your required quantity, delivery timeline, and destination country
- Receive Quotation: Formal quotation with unit price, lead time, freight options (DHL/FedEx/sea freight), and payment terms issued within 1 business day
- Order Confirmation: Purchase order accepted via email; proforma invoice issued for T/T wire transfer or L/C payment
- Quality Inspection & Dispatch: Module inspected, packed in anti-static ESD packaging, and dispatched with tracking number
- After-Sales Support: 12-month warranty; technical support available via email and WhatsApp (+0086 19859288691)
Technical FAQ
Q: Is the TAHXD16-3PEM compatible with CENTUM CS 3000?
A: The TAHXD16-3PEM is designed for the CENTUM VP platform. Compatibility with CS 3000 depends on the specific FCS generation and backplane revision. Contact our engineers for a compatibility assessment before ordering.
Q: Can this module be used in a redundant FCS configuration?
A: Yes. CENTUM VP supports dual-redundant FCS configurations. The TAHXD16-3PEM can be installed in redundant pairs; consult the CENTUM VP Hardware Engineering Manual (IM 33J01B10-01EN) for nest slot assignments.
Q: What is the lead time for this module?
A: In-stock units ship within 3–5 business days. For out-of-stock items, lead time is typically 4–8 weeks depending on sourcing channel. Contact us for real-time availability.
Q: Do you provide export documentation for customs clearance?
A: Yes. We provide commercial invoice, packing list, certificate of origin, and HS code documentation (HS 8537.10) for all international shipments.
Q: What warranty does Konmask offer?
A: All modules carry a 12-month warranty from the date of shipment. Defective units are replaced or refunded at Konmask’s discretion after technical verification.
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