Honeywell 8C-TDIL51 (51306969-175) Digital Input IOTA Board – Experion PKS C300 Series
When a Digital Input IOTA Board fails in a live process plant, the consequences are immediate and severe. Field signals from limit switches, pressure switches, and valve position sensors go dark — operators lose visibility into critical process states, safety interlocks may become unreliable, and unplanned shutdowns cascade across the entire control loop. The Honeywell 8C-TDIL51 (P/N 51306969-175) is the precision termination assembly that keeps those field connections alive, clean, and fully isolated within your Experion PKS architecture.
Within the Honeywell C300 Controller I/O subsystem, the 8C-TDIL51 occupies a specialized role as the 8-channel Digital Input IOTA (I/O Termination Assembly). It serves as the hardwired interface between field-level discrete signals and the C300 controller’s I/O Link, providing the signal conditioning, terminal blocks, and isolation barrier that industrial-grade DCS installations demand. Globally, Honeywell Experion PKS remains one of the most widely deployed distributed control systems in refining, petrochemical, power generation, and pharmaceutical manufacturing — making this IOTA board a mission-critical spare for thousands of operating facilities worldwide.
Technical Specifications
- Part Number: 8C-TDIL51 / 51306969-175
- Module Type: Digital Input IOTA Board (I/O Termination Assembly)
- Channel Count: 8 Channels
- Compatible Controller: Honeywell C300 Process Controller
- System Platform: Honeywell Experion PKS (Process Knowledge System)
- Series: C300 Series DCS I/O
- Form Factor: IOTA Board (mounts in C300 I/O chassis)
- Weight: 260 g (approx.)
- Manufacturer: Honeywell Process Solutions
- Condition: New / Refurbished / Tested Available — specify on inquiry
Note: All specifications are based on Honeywell published documentation. Konmask.com does not fabricate or alter technical parameters.
Key Features & Benefits
- 8-Channel Discrete Input Termination — Supports up to 8 independent digital input field connections per board, maximizing I/O density in the C300 chassis.
- Direct C300 I/O Link Compatibility — Designed exclusively for the Honeywell Experion PKS C300 architecture, ensuring plug-and-play replacement without reconfiguration overhead.
- Robust Field Wiring Terminals — Industrial-grade screw terminals accommodate standard field cable gauges used in process plant environments.
- Signal Isolation — Provides the necessary electrical isolation between field-side wiring and the controller backplane, protecting sensitive electronics from field transients.
- Compact IOTA Form Factor — Mounts directly in the standard C300 I/O enclosure, preserving cabinet space and simplifying cable management.
- Long-Term Availability — Konmask.com maintains stock of legacy and current Honeywell I/O components to support plants with extended operational lifecycles.
Industry & Equipment Applications
- Oil & Gas Refining — Valve position feedback, pump run/stop status, emergency shutdown (ESD) input monitoring.
- Petrochemical Plants — Reactor interlock inputs, level switch signals, pressure switch monitoring.
- Power Generation — Turbine protection system discrete inputs, breaker status monitoring.
- Pharmaceutical Manufacturing — Clean-in-place (CIP) sequence discrete inputs, door interlock signals.
- Pulp & Paper — Machine guard interlocks, conveyor run status, motor starter feedback.
- Water & Wastewater Treatment — Pump status, valve open/close confirmation, high-level switch inputs.
System Integration & Compatible Parts
The 8C-TDIL51 IOTA board is designed to work within the Honeywell Experion PKS C300 I/O subsystem. Compatible and commonly paired components include:
- Honeywell C300 Process Controller (CC-PCF901 / CC-PCF902)
- Honeywell C300 I/O Link Extender modules
- Honeywell Digital Input FTA (Field Termination Assembly) modules
- Honeywell 8C-PAIH51 Analog Input IOTA Board
- Honeywell 8C-TAOX15 Analog Output IOTA Board
- Honeywell Experion PKS I/O Chassis and Power Supplies
Contact Konmask.com with your full BOM (Bill of Materials) for complete system sourcing support.
Our Quality Assurance Process
- Visual Inspection — Every unit is inspected for physical damage, corrosion, and component integrity before shipment.
- Functional Verification — Refurbished units undergo bench testing to verify channel continuity and terminal integrity.
- Authentic Sourcing — We source directly from authorized channels and reputable industrial surplus suppliers. No counterfeit parts.
- Secure Packaging — ESD-safe packaging with anti-static bags and foam cushioning to prevent transit damage.
- Documentation — Test reports and certificates of conformance available upon request for critical applications.
How to Order
- Submit an inquiry via the Contact / RFQ form on this page or email [email protected].
- Provide your required quantity, preferred condition (new/refurbished), and delivery timeline.
- Receive a formal quotation within 1 business day.
- Confirm order and arrange payment via T/T, PayPal, or other agreed terms.
- Shipment dispatched with tracking — worldwide delivery available.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation — We focus exclusively on DCS, PLC, and industrial control components from leading brands.
- ✅ Global Shipping — Reliable export logistics to North America, Europe, Middle East, Southeast Asia, and beyond.
- ✅ Competitive Pricing — Direct sourcing relationships allow us to offer market-competitive prices on both new and refurbished stock.
- ✅ Technical Support — Our team includes engineers with hands-on DCS experience who can assist with compatibility and application questions.
- ✅ Fast Response — RFQ responses within 24 hours. Urgent requirements accommodated.
- ✅ Trusted by Industry — Serving process plants, EPCs, and MRO procurement teams worldwide.
Frequently Asked Questions
- Q: Is the 8C-TDIL51 compatible with all Honeywell Experion PKS versions?
- A: The 8C-TDIL51 IOTA board is designed for the C300 I/O subsystem within Experion PKS. Compatibility depends on your specific system revision. Please share your system version details when submitting an inquiry so we can confirm suitability.
- Q: What is the difference between 8C-TDIL51 and 51306969-175?
- A: These are two identifiers for the same component. 8C-TDIL51 is the Honeywell catalog/model number, while 51306969-175 is the Honeywell part number (P/N) used in procurement and documentation. Both refer to the identical Digital Input IOTA Board.
- Q: Do you offer refurbished units with warranty?
- A: Yes. Refurbished units are available with a standard 90-day warranty covering functional defects. Extended warranty options can be discussed for volume orders.
- Q: Can you supply the complete C300 I/O system, not just this IOTA board?
- A: Absolutely. Konmask.com can source complete C300 I/O assemblies including controllers, IOTA boards, FTAs, chassis, and power supplies. Submit your full BOM for a comprehensive quote.
- Q: What is the lead time for this part?
- A: Lead time depends on current stock levels and your location. In-stock items typically ship within 2–3 business days. Contact us for real-time availability.
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