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The 8C-PAOHA is a high-performance Analog Output (AO) module engineered for the Honeywell Experion PKS Series 8. It provides 16 channels of 4–20 mA output signals for precise control of final control elements such as modulating valves, dampers, and motor speed drives. What distinguishes this module is its integrated Highway Addressable Remote Transducer (HART) capability, enabling simultaneous analog control and digital communication with smart field devices over the same wiring.
Designed with the Series 8 vertical architecture, the 8C-PAOHA maximizes cabinet density while improving thermal performance through natural convection. It features high-resolution 16-bit digital-to-analog conversion for accurate signal reproduction in critical control loops. The module also includes comprehensive onboard diagnostics, such as open-circuit detection, high-impedance load monitoring, and output current read-back verification, enhancing system reliability and maintainability in demanding industrial environments.
| Parameter | Specification |
|---|---|
| Model Designation | 8C-PAOHA |
| Module Type | Analog Output with HART Support |
| Hardware Line | Experion PKS Series 8 |
| Output Signal | 4–20 mA Current Loop |
| Digital Communication | Integrated HART Protocol Pass-through |
| Channel Density | 16 Channels |
| Resolution | 16-bit High Precision |
| Isolation Voltage | Galvanic Isolation per Channel |
| Module Height | 26.7 cm |
| Module Width | 5.1 cm |
| Module Depth | 17.8 cm |
| Net Weight | 0.5 kg |
The 8C-PAOHA is widely used in advanced process industries requiring both precise control and asset monitoring, including:
Power generation plants
Oil & gas refineries
Chemical and petrochemical facilities
Typical applications include:
Controlling smart valve positioners with HART diagnostics
Monitoring valve travel, calibration, and device health remotely
Providing continuous analog control while enabling digital device communication
It is particularly valuable in Distributed Control Systems (DCS) where both control precision and asset management are critical.
Q: Does the 8C-PAOHA require a separate HART multiplexer?
A: No. The module includes integrated HART modems on each channel, allowing direct communication between smart field devices and the C300 controller through the Honeywell Experion PKS Series 8 without requiring an external HART multiplexer.