Honeywell 8C-TDIL51 / 51306969-175 24V Digital Input IOTA Board – Experion PKS C300 Series
Imagine a refinery’s safety interlock system going blind — field sensors transmitting critical process signals, but the control system receiving nothing. Without a functioning Digital Input IOTA Board, the DCS loses its eyes on the plant floor. Valve positions, motor run/stop states, and emergency shutdown signals all go dark. The result: unplanned shutdowns, regulatory violations, and potentially catastrophic process upsets. The Honeywell 8C-TDIL51 (P/N 51306969-175) is the precision interface that prevents exactly this scenario — reliably converting 24V DC field signals into the digital data your Experion PKS controller depends on.
Within the Honeywell Experion PKS C300 I/O architecture, the 8C-TDIL51 occupies a critical tier: it is the IOTA (I/O Termination Assembly) board that physically terminates field wiring and conditions 24V digital input signals before they reach the C300 controller cards. As a genuine Honeywell OEM component, this part number is specified by process engineers across oil & gas, petrochemical, power generation, and pharmaceutical plants worldwide — industries where signal integrity and system uptime are non-negotiable.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 8C-TDIL51 / 51306969-175 |
| Manufacturer | Honeywell Process Solutions |
| Series | Experion PKS C300 DCS |
| Module Type | Digital Input IOTA Board |
| Input Voltage | 24V DC |
| Form Factor | IOTA (I/O Termination Assembly) |
| Compatible Controller | C300 Process Controller |
| Weight | 220 g (approx.) |
| Condition Available | New / Refurbished / Tested |
Note: All specifications are sourced from Honeywell official documentation. Contact us to confirm compatibility with your specific system revision.
Key Features & Benefits
- 24V DC Signal Compatibility: Designed to interface directly with standard 24V DC field devices — proximity switches, pushbuttons, relay contacts, and limit switches — without additional signal conditioning hardware.
- IOTA Architecture: Separates field wiring termination from the controller card, enabling hot-swap maintenance and reducing downtime during module replacement.
- Genuine OEM Component: Manufactured to Honeywell’s exacting tolerances, ensuring full compatibility with Experion PKS firmware and diagnostics.
- High Channel Density: Supports multiple digital input channels per board, maximizing cabinet space efficiency in large-scale DCS installations.
- Integrated Diagnostics: Works with Experion PKS system-level diagnostics to report field wiring faults, open circuits, and module health — reducing MTTR (Mean Time to Repair).
- Long Service Life: Built for continuous 24/7 industrial operation in harsh environments typical of process plants.
Industry & Equipment Applications
- Oil & Gas: Wellhead control panels, pipeline SCADA integration, compressor station monitoring, and ESD (Emergency Shutdown) systems.
- Petrochemical & Refining: Reactor interlock systems, distillation column monitoring, and fired heater safety circuits.
- Power Generation: Turbine control systems, boiler management, and substation automation where 24V digital I/O is standard.
- Pharmaceutical & Life Sciences: FDA-regulated batch process control, clean room equipment monitoring, and CIP/SIP system integration.
- Pulp & Paper / Chemical: Continuous process monitoring, conveyor and pump status feedback, and safety instrumented systems (SIS).
System Integration & Compatible Parts
The 8C-TDIL51 IOTA board is designed to work within the Honeywell Experion PKS C300 I/O subsystem. Typical companion components include:
- Honeywell C300 Process Controller (51309276-175 / 51309276-275)
- Honeywell CIOM-A I/O Link Module
- Honeywell 8C-PAIH51 Analog Input IOTA Board
- Honeywell 8C-TAOX51 Analog Output IOTA Board
- Honeywell 8C-TDOB51 Digital Output IOTA Board
- Honeywell CC-PDIL01 / CC-TDIL51 equivalent I/O modules
Contact our technical team to verify revision compatibility and confirm the correct IOTA/FTA pairing for your cabinet configuration.
Our Quality Assurance Process
- Visual Inspection: Every unit is inspected for physical damage, corrosion, and component integrity before listing.
- Functional Testing: Where applicable, modules are bench-tested using compatible Honeywell hardware to verify I/O channel operation.
- Authenticity Verification: We source exclusively from verified industrial surplus channels, OEM distributors, and decommissioned plant inventories — no counterfeit risk.
- Traceability: Each unit ships with documentation of its sourcing history and test results upon request.
- Packaging: Anti-static packaging with foam cushioning to protect sensitive PCB components during international transit.
How to Order
- Submit an Inquiry: Use the contact form or email support@konmask.com with your part number, required quantity, and delivery timeline.
- Receive a Quote: Our team responds within 24 hours with pricing, availability, and lead time.
- Confirm & Pay: We accept T/T (bank transfer), PayPal, and other B2B payment methods. A proforma invoice is issued upon order confirmation.
- Ship & Track: Orders are dispatched via DHL, FedEx, or UPS with full tracking. Export documentation (commercial invoice, packing list, COO) provided for customs clearance.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on DCS, PLC, and industrial automation components — not a generalist marketplace.
- Global Reach: We ship to 50+ countries with experience in export compliance for industrial electronics.
- Technical Support: Our team includes engineers with hands-on DCS experience who can assist with compatibility questions.
- Competitive Pricing: Direct sourcing relationships allow us to offer competitive pricing on both new and refurbished stock.
- Fast Response: Inquiries answered within 24 hours, with urgent requirements handled on priority basis.
Frequently Asked Questions
Q: Is the 8C-TDIL51 the same as 51306969-175?
A: Yes. 8C-TDIL51 is the Honeywell catalog model number, and 51306969-175 is the full part number including revision suffix. Both refer to the same Digital Input IOTA Board for the Experion PKS C300 system.
Q: Can this IOTA board be used with older Honeywell TDC 3000 or PlantScape systems?
A: No. The 8C-TDIL51 is specifically designed for the Experion PKS C300 I/O architecture and is not backward compatible with TDC 3000 or PlantScape hardware. Contact us if you need I/O modules for legacy Honeywell systems.
Q: Do you offer warranty on this part?
A: Yes. We offer a 90-day functional warranty on all tested and refurbished units. New OEM stock carries the standard Honeywell warranty where applicable.
Q: What is the lead time for this part?
A: Lead time depends on current stock status. In-stock units ship within 2–3 business days. Out-of-stock items typically have a 2–4 week sourcing lead time. Contact us for real-time availability.
Q: Can you provide export documentation for customs clearance?
A: Yes. We provide a full set of export documents including commercial invoice, packing list, and certificate of origin. HS code classification assistance is available upon request.
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