The Honeywell 51306731-175 (Rev B), commonly identified by the model CC-PAIH02, is a high-performance HART-enabled Analog Input (AI) module for the Experion® PKS (Process Knowledge System). As a critical component of the C300 controller series, this Input/Output Module (IOM) is designed to interface with 4-20mA field transmitters. It not only captures primary process variables but also extracts secondary diagnostic data via the HART (Highway Addressable Remote Transducer) protocol, enabling advanced asset management and predictive maintenance.

Technical Description & Parameters

The CC-PAIH02 is a 16-channel, high-level analog input module that provides superior signal conditioning and digital integration.

• Part Number: 51306731-175 (Revision B)
• Model Number: CC-PAIH02
• Module Type: High-Level Analog Input with HART
• Channels: 16 Single-Ended Channels
• Input Signal: 4-20 mA DC
• Resolution: 16-bit A/D conversion for high precision
• HART Support: Fully integrated HART v5, v6, and v7 pass-through
• Series: Experion C300 / Series C I/O
• Mounting: Plugs into the specialized Series C I/O Input Output Termination Assembly (IOTA)

 

Product Technical Description

The CC-PAIH02 features a “coated” PCB (conformal coating), as indicated by the “CC” prefix, which protects the circuitry against harsh industrial atmospheres, moisture, and corrosion. This module utilizes a high-speed internal bus to communicate with the C300 controller, ensuring deterministic data updates for control loops. By supporting HART data, it allows the Experion system to monitor transmitter health, range settings, and multi-variable data (such as temperature and pressure from a single device) without additional wiring.

 

Product Datasheet Essentials

This module is designed for “Hot-Swap” capability, allowing for module replacement under power without disturbing the field wiring connected to the IOTA. It includes per-channel current limiting to protect the module from field-side short circuits. The 51306731-175 Rev B revision includes updated internal firmware and component tolerance improvements for better thermal stability in high-density cabinet installations. It features a status LED on the front faceplate to indicate “OK,” “Fault,” or “Active” communication states.

 

Country of Origin

USA / Thailand (Honeywell Process Solutions)

 

Application Fields

The CC-PAIH02 is a staple in modern automated plants:

• Oil & Gas: Interfacing with smart pressure and level transmitters on wellheads and separators.
• Chemical Refining: Monitoring high-precision flow meters and temperature sensors in reactor loops.
• Power Plants: Capturing critical boiler and turbine instrumentation data.
• Pharmaceuticals: Ensuring accurate 4-20mA signal acquisition for validated batch processes.

 

Product Usage Instructions

1. Installation: Align the module with the guides on the Series C IOTA and press firmly until the locking tabs click.
2. IOTA Selection: Ensure you are using the correct IOTA (e.g., CC-TPAIH1 or CC-TPAIH2) that supports the 16-channel HART configuration.
3. Field Wiring: Connect the 4-20mA transmitter loops to the screw terminals on the IOTA. The module provides 24V DC loop power if configured for 2-wire transmitters.
4. Configuration: In the Honeywell Control Builder software, add the IOM to the I/O link and configure the channel types (HART or non-HART).
5. Diagnostics: Use the Experion Station to monitor the HART secondary variables and device status bits provided by the CC-PAIH02.

 

Common Questions & Answers (Q&A)

Q: What is the difference between CC-PAIH02 and CC-PAIX02? A: The CC-PAIH02 specifically supports HART communication, whereas the CC-PAIX02 is a standard High-Level Analog Input module without the HART digital pass-through capability.

Q: Does this module require a separate power supply? A: No, the module receives its logic power and field loop power through the IOTA from the centralized Series C power system.

Q: Can I use this module for 1-5V signals? A: This module is natively designed for 4-20mA current loops. To use 1-5V, a 250-ohm precision resistor must be installed across the input terminals on the IOTA to convert the voltage to a current signal.

 

Explore More Experion C300 Hardware

For technical support and to source the CC-PAIH02 / 51306731-175 along with other Honeywell Series C spare parts, visit our online technical catalog.

 

Recommended Similar Models

1. CC-PAIX02 – Non-HART Analog Input module for standard 4-20mA signals.
2. CC-PAOH01 – HART-enabled Analog Output module (16-channel).
3. CC-PDIL01 – Digital Input Low Voltage module for Series C I/O.
4. CC-PDOB01 – Digital Output Bus module for Series C systems.
5. 8C-PAIH01 – The standard (non-coated) version of the HART AI module.