The 8C-PAOH51 (P/N: 51454355-175) is a high-performance analog output module designed for the Honeywell C300 controller and Experion PKS Series 8 platform. It provides 16 channels of precision current output, enabling accurate control of final control elements such as valves, actuators, and variable-speed drives.
Supporting HART protocol pass-through, the module allows digital diagnostics from smart field devices to be transmitted back to the control system. This facilitates proactive maintenance, improves process uptime, and enhances safety. Its slim Series 8 form factor is optimized for vertical mounting, reducing cabinet footprint while maintaining robust thermal performance.
| Item | Specification |
|---|---|
| Model Designation | 8C-PAOH51 |
| Part Number | 51454355-175 |
| System Series | Series 8 / C300 Controller |
| Output Type | Analog Output with HART Communication |
| Channel Count | 16 |
| Signal Range | 4–20 mA DC |
| Digital Communication | HART 5 / 6 / 7 transparent pass-through |
| Dimensions (W×H×D) | 5.1 × 26.7 × 17.8 cm |
| Unit Weight | 0.5 kg |
| Mounting | Series 8 I/O Termination Assembly (IOTA) |
| Redundancy | Supported with appropriate IOTA |
The 8C-PAOH51 is widely used in process industries, including:
Chemical refining
Pharmaceutical production
It is typically deployed to drive control valves, providing both position control and HART-based diagnostic feedback to maintain safety and process efficiency.
Q: Does the 8C-PAOH51 support redundant configurations?
A: Yes. When installed on a redundant I/O Termination Assembly (IOTA), two 8C-PAOH51 modules can operate as a redundant pair, ensuring continuous control loop operation in case of a single module failure.
Q: Can this module be used for 0–10 V output signals?
A: No. The 8C-PAOH51 is specifically designed for 4–20 mA current loops. Voltage output applications require a different module variant.
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