Honeywell CC-PAIM01 51405045-175 Low-Level Analog Mux Module
Warranty: 1 year
Condition : brand new in factory sealed box
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Detail
- Product NameHoneywell CC-PAIM01 51405045-175 Low-Level Analog Mux Module
- Item NO.3537538
- Weight0.2800 kg = 0.6173 lb = 9.8767 oz
- CategoryDCS
- BrandHoneywell
- Creation Time2026-02-06
- Honeywell Low-Level Analog Mux Module
CC-PAIM01
Key Information
CC-PAIM01 (Part No. 51405045-175) is a low-level analog input multiplexer module from Honeywell's Experion PKS Series C I/O family. It is specifically designed for high-accuracy temperature measurement, supporting thermocouple (TC) and RTD inputs across up to 64 fully isolated channels (in 16-channel increments).
The module functions as a Low-Level Multiplexer (LLMUX) I/O Processor, interfacing with Honeywell PMIO LLMUX FTAs (Field Termination Assemblies). Each FTA supports 16 channels of either TC/mV or RTD inputs, allowing flexible configuration to match the specific sensor mix required by the application.
The CC-PAIM01 is a critical component for process monitoring in industries such as refining, chemical processing, power generation, and pharmaceuticals, where precise temperature data is essential for safety and product quality.
- 64 isolated low-level input channels
- Supports TC, RTD, and mV signals
- 1 second scan rate (up to 64 channels/sec)
- ±0.05% gain error
- Requires CC-TAIM01 or compatible IOTA
Functions
Signal acquisition & processing
- Low-level signal multiplexing — Acquires and conditions millivolt-level signals from thermocouples and RTDs, providing precise temperature data to the Experion PKS control system.
- Cold junction compensation — Provides integrated cold junction reference (CJR) with ±1.0°C accuracy (0–50°C) to ensure accurate thermocouple measurements.
- Open thermocouple detection (OTD) — Each conversion is qualified; guaranteed no-trip at ≤1000 Ω and guaranteed trip at ≥1500 Ω, enabling rapid fault identification.
Diagnostics & configuration
- High channel isolation — Features channel-to-channel, channel-to-PM, and channel-to-power supply common isolation, eliminating ground loops and cross-channel interference.
- Line frequency rejection — Fixed 50 Hz or 60 Hz line frequency integration with 60 dB min NMRR to filter out power line noise.
- Remote cold junction capability — Supports remote CJR for applications requiring extended temperature monitoring.
Specifications
Electrical & performance
| Manufacturer | Honeywell Process Solutions |
| Model | CC-PAIM01 |
| Part Number | 51405045-175 |
| Product type | Low-Level Analog Input Module / LLMUX IOP |
| Input channels | 64 fully isolated (in 16-channel increments) |
| Input types | Thermocouple (TC), RTD, millivolt (mV) |
| Nominal TC range | -20 to +100 mV |
| Gain error (TC range) | 0.050% full scale max |
| Input impedance (TC only) | 1 MΩ at DC |
| CMRR (50/60 Hz) | 120 dB min (1000 Ω source max) |
| NMRR at 50/60 Hz | 60 dB min |
| RTD excitation current | 1 mA |
| Scan rate | 1 second (fixed by IOM) |
Physical & environmental
| Mounting | Series C I/O rack with IOTA (CC-TAIM01) |
| Operating temperature | 0°C to +60°C |
| Storage temperature | -40°C to +85°C |
| Relative humidity | 5% – 95% RH (non-condensing) |
| CMV rating | ±250 VDC or VAC RMS |
| Surge protection | EN 61000-4-5 (1kV line-line, 2kV line-ground) |
| Isolation | Channel-to-channel, channel-to-PM, channel-to-power |
| Max cable distance | 1000 ft (16 gauge, twisted pair) |
Installation
Proper installation of the CC-PAIM01 module ensures reliable low-level signal acquisition and system stability.
Mounting & wiring guidelines
| Mounting position | Series C I/O rack with CC-TAIM01 or compatible IOTA |
| FTA connection | PMIO LLMUX FTA (MU-TAMR04, TAMT04, TAMT14) |
| Field wiring | Shielded twisted-pair cable with single-point grounding |
| Max cable distance | 1000 feet (16 AWG, two twisted pairs per FTA) |
| Grounding | Single-point ground for shield to avoid ground loops |
| ESD handling | Required due to sensitive low-level signal circuitry |
| Cold junction sensor | Must be correctly installed for TC accuracy |
- Install the CC-PAIM01 in a clean, ventilated control cabinet (IP20) with ambient temperature within the specified operating range (0°C to +60°C).
- The module handles millivolt-level signals; ensure proper cable shielding and single-point grounding to prevent EMI interference.
- When using TC inputs, the cold junction sensor must be correctly placed and thermally coupled to the terminal block for accurate reference compensation.
- For RTD inputs, use 2-wire, 3-wire, or 4-wire configurations as supported by the FTA. Observe the 15 Ω max lead resistance specification.
- If an OTD fault is tripped, verify sensor continuity before replacing the module.
Lifecycle
Discontinued / Legacy no longer in active production — limited availability
Product status: According to multiple sources, the CC-PAIM01 (51405045-175) has been discontinued by Honeywell. Only new surplus or tested refurbished units remain available through third‑party suppliers. The Series-C modular architecture is transitioning to newer universal I/O platforms.
Spare parts & support: Replacement units are limited to existing stock. Support is available through Honeywell's legacy support channels and authorized distributors, but long‑term availability is not guaranteed.
Replacement & migration:
- Current Series-C universal I/O modules integrate low-level multiplex functionality, but full sensor harness re-termination and Control Builder temperature logic revalidation is mandatory.
- Multiplex scan timing and cold-junction compensation logic do not match for unmodified direct swap.
-
When migrating, plan for complete system revalidation including:
- Sensor termination changes
- Control Builder temperature logic verification
- Cold junction compensation testing
- For new installations, Honeywell recommends the current universal I/O modules or newer platforms offering LLMUX functionality.
Recommendation: For existing systems using CC-PAIM01, we recommend procuring spare units while available. For new installations, evaluate current Honeywell universal I/O platforms for LLMUX capability.
