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Product Description

The 8C-PAOHA1 (P/N: 51454469-275) is a specialized analog output module for the Honeywell Experion PKS Series 8 platform. It provides 16 channels of 4–20 mA current output, each supporting HART protocol pass-through, enabling bidirectional communication with smart field devices.

This module allows the C300 controller to transmit both primary analog signals and secondary diagnostic/asset data, supporting proactive maintenance and improved process reliability. Its slimline, high-density design maximizes I/O count per linear inch of DIN rail, making it ideal for cabinet-optimized installations in high-performance industrial environments.


Technical Specifications

Item Specification
Model Number 8C-PAOHA1
Part Number 51454469-275
Platform Compatibility Series 8 / C300 Controller
Output Signal 4–20 mA DC
Protocol Support HART (Transparent Pass-through)
Channel Count 16
Mounting Series 8 Termination Assembly (IOTA)
Dimensions (W×H×D) 5.1 × 26.7 × 17.8 cm
Weight 0.5 kg
Environmental Tolerance Continuous industrial duty cycles
Redundancy Support Compatible with redundant IOTA configurations

Application Scenarios

The 8C-PAOHA1 is ideal for mission-critical control of field actuators and valves in industries such as:

  • Oil & gas

  • Power generation

  • Chemical processing

By leveraging HART communication, operators can remotely monitor valve friction, travel time, and overall device health, reducing the need for manual field inspections.


Frequently Asked Questions

Q: How does the 8C-PAOHA1 handle hardware failures?
A: When paired in a redundant IOTA configuration, if the primary module fails, the secondary module seamlessly takes over control of the 4–20 mA loops, ensuring uninterrupted operation.

Q: What is the difference between this and a non-HART version?
A: The 8C-PAOHA1 enables digital communication with smart instruments, allowing remote calibration and detailed asset management, which standard analog output modules cannot support.

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