Technical Specifications Breakdown
Key parameters for the CC-PAIH51 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Honeywell |
| Product Type | Analog Input with HART |
| Input / Output Model | CC-PAIH51 - High-Level Analog Input with HART |
| IOTA Models | CC-TAIX51 (Non Redundant - 6"), CC-TAIX61 (Redundant - 12") |
| Input Type | Current (2-wire or self-powered transmitters) |
| Input Channels | 16 Channels (ALL Single Ended) |
| Common Mode Rejection Ratio, dc to 60 Hz (500 Ω source imbalance) | 70 dB |
| Common Mode Voltage, dc to 60 Hz | -6 to +5 V peak |
| A/D Converter Resolution | 16 bits |
| Input Range | 4-20 mA only (through 200 Ω) |
| Normal Mode Rejection Ratio, at 60 Hz | 19 dB |
| Normal Mode Filter Response | Single-pole RC, -3 dB @ 6.5 Hz |
| Maximum Normal Mode Input | ± 30 Volts |
| Crosstalk, dc to 60 Hz (channel-to-channel) | -60 dB |
| Input Scan Rate | 50 ms |
| Hardware Accuracy (@ CMV = 0 V) | ± 0.075% of full-scale (23.5°± 2°C); ± 0.15% of full-scale (0 to 60°C) |
| Transmitter Field Power Conditioning | Individually Protected Current Limiting Circuits for Class 1, Div 2 non-incendive interfacing. No fusing required |
Industry Applications
In a chemical plant, it can monitor multiple pressure or flow transmitters, providing 4-20 mA signals to the DCS. The 16-channel density reduces cabinet space and wiring costs. In oil and gas facilities, the Class 1, Div 2 non-incendive interface allows safe connection to field devices in hazardous areas. The high common mode rejection ratio (70 dB) ensures accurate readings even with ground potential differences.

Installation & Setup Guidance
Before installation, verify that the IOTA model matches your redundancy requirement: CC-TAIX51 for non-redundant 6-inch, CC-TAIX61 for redundant 12-inch. Ensure the module is properly seated in the IOTA. Connect field wiring to the appropriate terminals, observing polarity for 2-wire transmitters. For self-powered transmitters, ensure the loop is properly terminated with 200 Ω. Do not exceed the maximum normal mode input of ±30 V. After power-up, configure the module in the Experion control software, setting input ranges to 4-20 mA and enabling HART as needed.
Maintenance & Reliability
Periodically inspect the module for dust accumulation and ensure proper ventilation. Check that all field wiring connections are tight and free from corrosion. Verify that the module's firmware is up to date. For redundant configurations, test the redundancy switchover to ensure seamless operation. Avoid exposing the module to temperatures outside the specified accuracy range (0 to 60°C) for optimal performance.
Honeywell CC-PAIH51 High-Level Analog Input with HART
Industrial processes demand precise and reliable signal acquisition. The Honeywell CC-PAIH51 is a high-level analog input module designed for the Experion Series-C I/O system. It provides 16 single-ended channels for current inputs from 2-wire or self-powered transmitters. This module is engineered to deliver accurate data to your control system, supporting critical monitoring and control functions.

Compatibility & Integration
The CC-PAIH51 is designed for the Honeywell Experion Series-C I/O system. It works with the CC-TAIX51 (non-redundant) and CC-TAIX61 (redundant) IOTA bases. The module supports HART protocol, enabling digital communication with smart transmitters while maintaining analog 4-20 mA signals. It is compatible with Honeywell's Experion PKS distributed control system.
Selection Guide & Purchasing Advice
When selecting the CC-PAIH51, consider your channel count and redundancy needs. If you require high availability, choose the redundant IOTA (CC-TAIX61). For standard applications, the non-redundant version (CC-TAIX51) is cost-effective. Ensure your transmitters support HART if you intend to use that feature. AutoDCSTech offers genuine Honeywell CC-PAIH51 modules with expert support. Contact us to verify availability and lifecycle status before ordering.
Troubleshooting & Common Issues
If the module shows no input, check the transmitter power supply and loop wiring. Verify that the input current is within 4-20 mA. If readings are noisy, inspect the common mode voltage and ensure it is within -6 to +5 V peak. Use a multimeter to measure the loop resistance; it should be 200 Ω. If HART communication fails, confirm that the HART filter is not attenuating the signal. For persistent issues, replace the module with a known-good unit to isolate the problem.
Availability & Condition at AutoDCSTech
| Part Number | CC-PAIH51 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
