Honeywell DC-TUIO31 – Universal I/O Module | Experion PKS / TotalPlant Solution Platform
Engineering Background: The DC-TUIO31 is a high-density Universal I/O (UIO) module designed for Honeywell’s Experion PKS (Process Knowledge System) and legacy TotalPlant Solution (TPS) distributed control systems. It represents Honeywell’s approach to flexible field wiring — allowing a single module to be configured as AI, AO, DI, or DO channels without hardware changes, dramatically reducing spare-parts inventory and engineering lead time.
Product Positioning: Targeted at process industries requiring high channel density, field-configurable I/O, and seamless integration with Honeywell’s C300 controller infrastructure. The DC-TUIO31 is the preferred choice for greenfield DCS builds and brownfield migrations where wiring flexibility and long-term supportability are critical procurement criteria.
Complete Technical Specifications
- Part Number: DC-TUIO31
- Manufacturer: Honeywell Process Solutions
- Platform: Experion PKS / TotalPlant Solution (TPS)
- Module Type: Universal I/O (UIO) — field-configurable AI / AO / DI / DO
- Channel Count: 32 universal channels per module
- Analog Input: 4–20 mA, 0–10 V, thermocouple (J, K, T, E, R, S, B), RTD (Pt100, Pt1000)
- Analog Output: 4–20 mA, 0–10 V
- Digital Input: 24 VDC, dry contact / wet contact selectable
- Digital Output: 24 VDC, solid-state relay
- Communication Bus: FOUNDATION Fieldbus / FTE (Fault Tolerant Ethernet) backbone
- Power Supply: 24 VDC (supplied via backplane)
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: −40 °C to +85 °C
- Humidity: 5% to 95% RH, non-condensing
- Weight: Approx. 450 g
- Mounting: Honeywell IOLIM / UIO carrier rail (DIN-compatible chassis)
- Certifications: CE, UL, FM (Class I Div 2), ATEX Zone 2 (verify with datasheet for specific revision)
- Firmware: Upgradeable via Experion PKS Control Builder
- Hot-Swap: Supported (no process interruption during replacement)
- Redundancy: Supported in conjunction with redundant C300 controller pair
Proven Application Environments
- Oil & Gas: Upstream wellhead control, midstream pipeline SCADA, downstream refinery DCS migration
- Petrochemical: Reactor temperature/pressure loop control, distillation column instrumentation
- Power Generation: Boiler management systems, turbine auxiliary control
- Pulp & Paper: Digester control, recovery boiler instrumentation
- Pharmaceuticals: Batch process control, clean-room HVAC integration
- Water & Wastewater: Pump station automation, chemical dosing control
- Mining & Minerals: Flotation cell control, conveyor drive integration
Engineering Advantages
- Universal Channel Flexibility: Each of the 32 channels is software-configurable as AI, AO, DI, or DO — eliminating the need to stock separate module types for each signal category.
- Reduced Wiring Complexity: Single module type covers the majority of field signal types, simplifying cabinet design and reducing termination errors.
- Hot-Swap Capability: Modules can be replaced under power without shutting down the controller or adjacent I/O — critical for continuous-process industries with zero-downtime requirements.
- Seamless Experion PKS Integration: Auto-recognized by Control Builder; channel configuration is downloaded directly from the engineering database, eliminating manual DIP-switch settings.
- Long Product Lifecycle: Honeywell’s Experion PKS platform carries a published 20-year lifecycle commitment, ensuring long-term spare-parts availability and firmware support.
- Redundancy Support: Works natively with C300 redundant controller pairs and FTE redundant network for SIL-capable architectures.
System Architecture & Signal Flow
The DC-TUIO31 mounts on a UIO carrier/termination assembly within the Experion PKS I/O cabinet. Field wiring terminates at the carrier’s screw terminals; the module plugs into the carrier and communicates upstream to the C300 Controller via the FTE (Fault Tolerant Ethernet) backplane. The C300 aggregates I/O data and passes it to the Experion Server over a redundant FTE network. Engineering configuration is performed in Control Builder, where each channel’s signal type, range, engineering units, and alarm limits are defined and downloaded to the module. HART pass-through is supported on analog channels, enabling asset management via Honeywell’s Field Device Manager (FDM).
Sourcing & Quality Verification
- Source: Konmask.com sources DC-TUIO31 modules from authorized Honeywell distributors and verified industrial surplus channels with documented chain of custody.
- Inspection: Every unit undergoes visual inspection, label/firmware-revision verification, and functional power-on testing prior to shipment.
- Packaging: Shipped in anti-static ESD bags with foam-lined cartons; original Honeywell packaging retained where available.
- Documentation: Certificate of conformance, test report, and datasheet revision available upon request.
- Warranty: 12-month warranty against manufacturing defects; DOA replacement within 30 days.
- Counterfeit Prevention: All units verified against Honeywell serial-number databases where accessible; suspicious units are quarantined and not sold.
Procurement Process
- Submit RFQ: Email support@konmask.com with your required quantity, delivery timeline, and any revision/firmware requirements.
- Receive Quote: Pricing and lead-time confirmation within 1 business day.
- Order Confirmation: Purchase order accepted via email; proforma invoice issued for prepayment or net-terms accounts.
- Quality Check & Dispatch: Unit inspected, documented, and dispatched via DHL / FedEx / UPS with full tracking.
- After-Sales Support: Technical support available via email and WhatsApp (+0086 19859288691) for installation and commissioning queries.
Technical FAQ
Q: Is the DC-TUIO31 compatible with the legacy TPS (TotalPlant Solution) platform?
A: The DC-TUIO31 is a native Experion PKS module. For legacy TPS/TDC 3000 systems, the equivalent I/O modules are from the PM/APM/HPM family. Please confirm your controller type before ordering.
Q: Can I mix AI and DI channels on the same DC-TUIO31 module?
A: Yes. Each channel is independently configurable in Control Builder. You can assign any combination of AI, AO, DI, and DO across the 32 channels within the module’s power budget.
Q: Does the DC-TUIO31 support HART communication?
A: Yes. HART pass-through is supported on analog channels, enabling two-way communication with HART-enabled field devices via Honeywell FDM.
Q: What is the difference between DC-TUIO31 and DC-TUIO32?
A: The DC-TUIO32 is a later revision with enhanced diagnostics and extended temperature range. Both are functionally compatible within the same Experion PKS system; firmware revision should be matched to your Control Builder version.
Q: Can this module be used in SIL-rated safety loops?
A: The DC-TUIO31 is a standard control I/O module and is not SIL-certified for safety instrumented systems. For SIL 1–3 applications, Honeywell’s Safety Manager (SM) platform with FC-series I/O modules is required.
Q: What is the minimum order quantity?
A: Single-unit orders are accepted. Volume pricing is available for orders of 5 units or more.
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