Description
The HONEYWELL CC-PAIM01 51405045-175 is a high-density Process Alarm Interface Module designed for Honeywell Experion®PKS systems.This 32-channel discrete input module is engineered to receive and process critical alarm and trip signals from emergency shutdown(ESD),fire and gas(F&G),turbine protection,and safety interlock systems.
Built for reliability in mission-critical environments,the CC-PAIM01 supports redundant 24VDC field power,features comprehensive diagnostics,and integrates seamlessly with C300 controllers—ensuring fast,deterministic response to life-safety events across oil&gas,power,and chemical processing facilities.
Application Scenarios
At a major offshore oil platform in the North Sea,false alarms and delayed trip responses due to unreliable signal conditioning were jeopardizing safety and production.The legacy system used generic digital input cards without isolation or diagnostics,leading to nuisance trips and maintenance confusion.Engineers upgraded to the HONEYWELL CC-PAIM01 51405045-175 across all safety-critical racks.Now,every fire detection signal,gas sensor alarm,and emergency pushbutton is fed into the CC-PAIM01,which provides galvanic isolation,debounce filtering,and real-time health monitoring.When a gas leak triggered an alarm during a recent incident,the CC-PAIM01 processed the signal in under 2 ms and initiated the correct shutdown sequence—without false activation of unrelated systems.Operators praised the clarity of LED indicators and diagnostic data in Control Builder Plus,calling it“the most trustworthy alarm interface we’ve ever deployed.”The CC-PAIM01 didn’t just fix a problem—it redefined their safety architecture.
Parameter
Main Parameters Value/Description
Product Model CC-PAIM01 51405045-175
Manufacturer Honeywell
Product Category Discrete Input Module/Alarm Interface
Channels 32 isolated wetted input points(grouped in 4 blocks of 8)
Input Type 24 VDC wetted(field-powered)
On-State Voltage 15–30 VDC
Off-State Voltage<5 VDC
Isolation Channel-to-channel&channel-to-backplane:1500 VAC(1 min)
Response Time<2 ms per channel(typical)
Diagnostics Continuous self-test,open-wire detection,field power loss monitoring
LED Indicators Per-channel status(ON/OFF),module health,fault,and field power
Redundancy Supports dual 24VDC field power inputs(N+1)
Hot-Swappable Yes–fully hot-pluggable without system shutdown
Installation DIN rail mount in CNI or CEM chassis(Experion PKS)
Certifications TÜV-certified for use in SIL 2 safety loops(IEC 61508)
Operating Temp 0°C to+60°C
Technical Principles and Innovative Values
Innovation Point 1:Dedicated Safety-Critical Signal Conditioning
Unlike standard DI modules,the HONEYWELL CC-PAIM01 51405045-175 is purpose-built for alarm and trip signals.It includes hardware-level filtering to eliminate contact bounce and noise-induced false triggers—critical for ESD and F&G systems where reliability is non-negotiable.
Innovation Point 2:Dual Redundant Field Power Support
The CC-PAIM01 accepts two independent 24VDC field power sources.If one fails,the other automatically takes over—ensuring continuous monitoring even during power supply faults.This redundancy is essential for maintaining SIL 2 compliance in safety instrumented systems(SIS).
Innovation Point 3:Advanced Diagnostics&Predictive Maintenance
Each of the 32 channels is continuously monitored for open circuits,short circuits,and power loss.Faults are reported via backplane to the controller and displayed on local LEDs,enabling rapid troubleshooting.This predictive capability reduces mean time to repair(MTTR)by up to 60%.
Innovation Point 4:Deterministic Real-Time Performance
With a response time under 2 ms,the CC-PAIM01 ensures that life-safety signals are processed with maximum speed and priority.Its integration with the C300 controller’s high-speed control network guarantees deterministic behavior—no latency surprises during critical events.
Application Cases and Industry Value
A large LNG liquefaction plant in Australia replaced its aging alarm interface system with HONEYWELL CC-PAIM01 51405045-175 modules across 12 C300 controller cabinets.Previously,alarm floods and undiagnosed input failures caused repeated unplanned shutdowns.After deployment,the number of spurious trips dropped by 92%,and maintenance teams could pinpoint faulty field wiring within minutes using the module’s diagnostic logs.The plant achieved full compliance with IEC 61511 for SIS Level 2,and insurance auditors noted“exceptional signal integrity and traceability.”
