Description:

The HONEYWELL CC-PAIH02​is an 8-channel,high-performance analog input module designed for Honeywell’s Experion PKS distributed control system(DCS).It serves as a universal,isolated interface for connecting 4-20 mA current loop and voltage-type field transmitters,providing precise signal conditioning and digitization for critical process variables like pressure,temperature,flow,and level.This module is a core component of the C Series I/O family,delivering trusted reliability for continuous process automation.

Application Scenarios:

In a pharmaceutical bioreactor,precise control of pH,dissolved oxygen,temperature,and nutrient feed rates is paramount to cell viability and product yield.A manufacturer experienced data integrity issues and cross-talk between sensor loops in their legacy system,risking batch contamination and regulatory non-compliance.By deploying the CC-PAIH02​modules within their new Experion PKS system,each critical analog sensor was given a dedicated,isolated channel.The module’s high accuracy and built-in diagnostics ensured each parameter was measured without interference.This allowed for tighter closed-loop control,resulting in a 15%increase in batch consistency and providing the validated,audit-ready data trail required by FDA 21 CFR Part 11,all made possible by the signal integrity delivered by the CC-PAIH02.

Parameter:

Main Parameters

Value/Description

Product Model​

CC-PAIH02​

Manufacturer​

Honeywell

Product Category​

Isolated Analog Input Module

System Platform​

Experion PKS(with C300 Controller)

Number of Channels​

8 individually isolated channels

Input Types​

4-20 mA(2-wire transmitter),0-5 Vdc,1-5 Vdc,0-10 Vdc

Isolation​

1500 Vrms channel-to-channel and channel-to-bus

Input Impedance​

250Ωfor current,>1 MΩfor voltage inputs

Accuracy​

±0.05%of span(typical)

Update Rate​

Configurable per channel(e.g.,60 ms)

Diagnostics​

Open wire,over-range,under-range,module health

Connector​

Removable terminal block for easy wiring

Hot Swap​

Supported in redundant configuration

Technical Principles and Innovative Values:

The HONEYWELL CC-PAIH02​embodies Honeywell’s focus on signal integrity,diagnostics,and ease of use in high-availability process environments.Its design ensures that raw field signals are converted into trustworthy digital data for the controller.

Innovation Point 1:True Channel-to-Channel Isolation.​Unlike multiplexed inputs,each of the 8 channels on the CC-PAIH02​features 1500 Vrms electrical isolation.This prevents ground loops,eliminates signal crosstalk,and ensures that a fault on one channel(such as a lightning-induced surge)cannot affect the readings on adjacent channels.This is critical for safety systems and for maintaining process integrity when mixing signals from different power sources or hazardous areas.

Innovation Point 2:Intelligent Diagnostics and HART Pass-Through.​The module performs continuous onboard diagnostics,checking for open circuits,short circuits,and signal validity.Crucially,many variants support HART digital signal pass-through.This allows a control system asset management tool to communicate with HART-enabled smart field devices(transmitters)over the same 4-20 mA wires connected to the CC-PAIH02,enabling remote configuration,calibration verification,and advanced device diagnostics without interrupting the analog signal.

Innovation Point 3:Flexible Configuration and Redundancy Support.​Each channel can be independently configured for current or voltage input via software in the Experion Control Builder,eliminating hardware jumpers.The CC-PAIH02​is designed for high availability;it can be installed in pairs for redundancy.In a redundant pair,if the primary module fails,the secondary seamlessly takes over without loss of data or control,ensuring continuous process operation.

Application Cases and Industry Value:

Case Study:Offshore Oil Production Platform.​An offshore platform needed to upgrade the subsea multiphase flow metering system,which provides critical data for reservoir management and fiscal accounting.The existing analog interfaces were prone to drift and required frequent manual calibration,leading to production allocation uncertainties.

The platform integrated the new metering system with the platform’s Experion PKS using CC-PAIH02​modules.Each flow computer’s analog outputs for oil,gas,and water rates were wired to dedicated,isolated channels.The high accuracy(±0.05%)and stability of the CC-PAIH02​modules ensured the digital values in the DCS precisely matched the flow computer’s scaled output.Furthermore,the integrated diagnostics provided an early warning for any signal degradation.This implementation reduced measurement uncertainty by over 50%,providing more accurate production data that resolved allocation disputes and optimized reservoir management decisions.The platform engineer reported a 90%reduction in time spent troubleshooting meter input signals.

Related Product Combination Solutions:

The CC-PAIH02​is part of a comprehensive I/O and control ecosystem.Key synergistic components include:

CC-PDIL51:​A 16-channel digital input module.Used in the same C Series I/O rack alongside the CC-PAIH02​to monitor pump run status,valve limit switches,and alarms.

CC-PAOH01:​An 8-channel analog output module.Forms a control loop:the CC-PAIH02​reads a process variable(e.g.,level),the C300 controller calculates a response,and the CC-PAOH01​drives the final control element(e.g.,control valve).

CC-TCNT01:​A thermocouple/RTD input module.For direct temperature measurement,whereas the CC-PAIH02​typically interfaces with temperature transmitters.

C300 Controller:​The process controller that houses the I/O modules and executes the control strategies using data from the CC-PAIH02.

Experion Control Builder:​The engineering software used to configure the hardware,define I/O tags,set alarm limits,and program control logic for the CC-PAIH02​and the entire system.

Fieldbus Modules(e.g.,CC-PFBX01):​For modern projects,these modules connect to Foundation Fieldbus or PROFIBUS PA networks,where intelligent field devices communicate digitally,representing an alternative to traditional 4-20mA analog points handled by the CC-PAIH02.

HART Multiplexer(e.g.,HMIP):​A device that can be used to concentrate HART communication from multiple field devices connected to several CC-PAIH02​modules,streamlining asset management.

Installation,Maintenance,and Full-Cycle Support:

Installation of the CC-PAIH02​is designed for serviceability.The module is keyed and slides into a slot in the C Series I/O carrier,which is mounted on a DIN rail.Field wiring is connected to a removable terminal block that plugs into the module’s front.This allows the terminal block to be pre-wired and labeled before installation,and the module itself can be replaced without disturbing field wiring.The carrier provides power and the communication link to the C300 controller.

Routine maintenance is supported by the module’s extensive diagnostic capabilities,which are visible in the Experion operator station.Predictive maintenance is enabled by monitoring the HART device variables from smart transmitters.If a module fault is indicated,the hot-swap capability in a redundant configuration allows for immediate replacement without a process shutdown.In a non-redundant setup,a spare module can be swapped in during a planned outage.Honeywell provides comprehensive global support for the CC-PAIH02,including detailed documentation,firmware updates,training courses,and a worldwide network of service engineers to ensure the longevity and performance of your process automation investment.