Brief Product Description

Honeywell CC-PAIH02, part number 51405038-375, is Series C high-level analog input IOM module for Honeywell Experion PKS C300 controller. It has 16 channels supporting 4-20mA current and voltage signals with native HART protocol for smart field transmitters. Unlike CC-PAIH01, all 16 channels can be configured either single-ended or differential input. It works with matched IOTA terminal assemblies to provide 24VDC loop power for 2-wire transmitters, converting analog field signals into digital data and transmitting to the C300 controller. It adopts 16-bit high-precision A/D conversion, channel isolation and built-in signal filtering to reduce electromagnetic interference. Per-channel diagnostics detect open circuit, short circuit, loop failure and module hardware faults. Fully tested surplus and refurbished Honeywell CC-PAIH02 (51405038-375) modules are available for legacy Experion PKS system maintenance, spare replacement and plant retrofit projects.

Core Product Functions

• 16-channel high-level HART analog input module for Honeywell Experion PKS C300 Series C I/O system
• Supports 4-20mA current and voltage input, HART communication for intelligent transmitters
• All 16 channels support flexible configuration for single-ended or differential measurement modes
• Interoperates with corresponding IOTA terminal assemblies for field wiring and transmitter loop power supply
• 16-bit high accuracy A/D sampling, built-in filter to suppress field electromagnetic noise
• Per-channel self-diagnosis for wire break, short circuit, loop abnormality and module hardware faults
• Acquire pressure, temperature, flow and level PV values and send to C300 for closed-loop control and trending
• Supports redundant IOTA configuration to enhance reliability of critical measurement loops
• Supports hot-swap operation for online rack maintenance without full system shutdown

Application Scenarios

• Legacy Honeywell Experion PKS C300 DCS Series C I/O measurement system
• Thermal power plant boiler and turbine pressure, temperature, flow and level signal acquisition
• Petrochemical, refinery continuous process parameter monitoring and closed-loop regulation
• Oil & gas, pulp & paper plant HART smart transmitter analog signal collection
• Metallurgy, water treatment industrial process variable monitoring system
• Legacy Experion PKS AI module replacement, maintenance and plant retrofits

FAQ (Frequently Asked Questions)

• Q: Measurement value drift or no reading after installing CC-PAIH02?
  A: Verify IOTA model matches CC-PAIH02, check field transmitter wiring and 24V loop power supply, confirm single-ended/differential channel configuration and HART settings, inspect backplane contact and shielding grounding.
• Q: Does Honeywell CC-PAIH02 support hot-swap replacement?
  A: Yes, hot swap is supported. Risk assessment and LOTO lockout-tagout must be performed before replacement to avoid abnormal process alarms.
• Q: What is the difference between CC-PAIH02 and CC-PAIH01?
  A: CC-PAIH02 supports differential input on all 16 channels; CC-PAIH01 only supports differential mode on channels 13–16. Both are HART high-level AI modules for Experion C300.
• Q: What accessories does it need?
  A: It must be paired with matching IOTA terminal block assemblies for field wiring and transmitter power distribution.
• Q: Is Honeywell CC-PAIH02 (51405038-375) available for new DCS projects?
  A: This legacy Experion Series C I/O module is end-of-life for new installations. Only fully tested surplus and refurbished units are supplied for existing DCS system maintenance and retrofits.