Product Core Brief
- Model: CC-TAIX11 (also known as 51308365-175)
- Brand: Honeywell
- Series: Experion PKS / C300 DCS
- Core Function: Acquires low-level analog signals from RTDs and Thermocouples for precise temperature monitoring.
- Product Type: Low-Level Analog Input (LLMUX) Module
- Key Specs: Low-Level Analog Input | RTD & TC Support | Non-HART
- Condition: New Original (New Surplus)
Product Introduction
The is a dedicated low-level analog input module designed for the Experion PKS C300 controller. It serves as the critical data acquisition interface for temperature measurement, specifically engineered to handle the millivolt-level signals from Thermocouples (TCs) and Resistance Temperature Detectors (RTDs).
Unlike standard analog input cards, the features integrated cold-junction compensation and high-impedance signal conditioning to ensure measurement accuracy in electrically noisy industrial environments. This module is the non-HART variant, optimized for applications where advanced field device diagnostics are not required, providing a cost-effective and reliable solution for high-density temperature monitoring.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | Low-Level Analog Input (LLMUX) |
| OEM Part Number | 51308365-175 |
| Supported Sensors | RTD (Pt100, Cu10, etc.) & Thermocouple (J, K, T, E, etc.) |
| HART Protocol | Not Supported (Non-HART Variant) |
| Controller Compatibility | Experion C300 / C200 |
| Bus Interface | C-Bus |
| Operating Temp | 0 °C to +60 °C |
| Storage Temp | -40 °C to +85 °C |
| Humidity | 5% to 95% (non-condensing) |
| Dimensions | Standard PM I/O Form Factor |
Quality Control Process (Engineer’s Perspective)
We don’t just box these and ship them. Here is our actual bench test workflow.
- Incoming Verification: We verify the serial number (51308365-175) against Honeywell’s traceability records. A visual inspection checks for bent pins on the C-Bus connector and ensures the DIN rail clip isn’t cracked.
- Live Functional Test: We mount the unit in a live C300 test rack. We inject calibrated RTD resistance and TC millivolt signals to verify the module’s internal scaling and cold-junction compensation accuracy.
- Electrical Parameter Test: We perform a 500 V Megger test between the field input terminals and the backplane. Insulation resistance must exceed 10 MΩ. Ground continuity is verified.
- Firmware Verification: We read the module’s internal firmware revision via the service port. We photograph the DIP switch settings to ensure they match factory defaults before shipping.
- Final QC & Packaging: The module is sealed in an anti-static bag with silica gel. A QC sticker showing the test date and technician initials is applied to the exterior.
Replacement Pitfall Guide
Field replacements on DCS systems are unforgiving. Watch out for these traps.
- Firmware Mismatch: ❗ Critical. A brand-new might have a newer firmware revision than your existing C300 CPU. The Experion controller will block it with a configuration mismatch fault. Always check your system’s allowed firmware matrix before installing.
- HART vs. Non-HART: ❗ Critical. The CC- is the non-HART version. If your system requires HART diagnostics, you must use the CC-PAIH01 or CC-TAIH01 instead. Installing a non-HART card in a HART-configured slot will cause a configuration fault.
- DIP Switch / Jumper Misconfiguration: This module uses hardware addressing for channel grouping. If you pull the old card and forget to transfer the binary address switches to the new one, the CPU will report missing temperature points.
- Terminal / Cable Incompatibility: Inspect the shielded cabling before connecting. Low-level TC signals are highly susceptible to noise; a broken shield or ground loop will cause erratic temperature readings that mimic sensor failure.
- ESD Damage: Safety modules are highly sensitive to electrostatic discharge. Always wear a grounded wrist strap when handling the bare PCB. I’ve seen modules fail bench testing because they were handled on a dry winter day without protection.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
Compatibility
- Honeywell CC- Rev A → CC- Rev B : Direct Replacement — Verify firmware compatibility with CPU.
- Honeywell CC-PAIX01 → CC- : Direct Replacement — Verify backplane termination requirements.
- Honeywell CC-TAIH01 → CC- : Incompatible — TAIH01 supports HART; does not.
Benchmarks
- Signal Conversion: High-precision low-level D/A (verify exact % tolerance with OEM datasheet)
- Cold-Junction Compensation: Integrated, ±1°C typical accuracy
Need the wiring diagram for the RTD/TC inputs? I can pull up the termination schematic for the 2-wire, 3-wire, and 4-wire RTD configurations and shield grounding points.
