Honeywell CC-PAOH01 51405039-176 HART Analog Output Module

The Honeywell CC-PAOH01 (Part Number: 51405039-176) is an 8-channel HART-enabled analog output module belonging to Honeywell’s C Series I/O portfolio, primarily designed to integrate with industrial control systems like the Experion PKS Distributed Control System (DCS) and C300 Controller. Its core function is to convert digital control signals from the controller into stable, precise 4–20 mA industrial standard current signals across 8 independently configurable channels—these signals directly drive critical field actuators such as control valves, variable frequency drives (VFDs), and electropneumatic (EP) positioners to regulate key process parameters (e.g., flow, pressure, level, and motor speed). Additionally, it supports native HART 7 protocol, enabling dual-mode communication over a single wire pair: transmitting the primary 4–20 mA analog control signal while simultaneously exchanging digital data for remote configuration of HART-enabled field devices (e.g., adjusting valve stroke time or VFD speed limits) and real-time diagnostics (e.g., monitoring actuator wear, cable shorts, or device overloads). It also features 2500 VDC galvanic isolation (channel-to-channel and channel-to-backplane) to prevent fault propagation and signal distortion in harsh industrial environments, 16-bit resolution and ±0.1% full-scale accuracy for tight process control, and comprehensive channel/module-level diagnostics (e.g., open circuits, overvoltage) that feed alerts to the control system for proactive maintenance—all while seamlessly integrating with Honeywell’s ecosystem for high-speed data transmission and optional hot-swap capability to minimize downtime.

Notable Features

□Extensive self diagnostics                      □Safe-state (FAILOPT) behaviors configurable on a per channel                                                                                                basis

□Optional redundancy                              □Output read-back and alarm on discrepancy

□HART-capable, multivariable                □Non-incendive output

instruments

□Multiple modems for fast collection 

of control variables

FAILOPT 

Series C AO module supports the FAILOPT parameter on a per channel basis. The user can configure 

each channel to either HOLD LAST VALUE, or SHED to a SAFE VALUE. The Output will always go to 

zero, the safe state, if the IOM device electronics fails.