Configured for 4-20 mA DC signal processing and digital transmitter diagnostic data transfer in Experion PKS C300 controller systems, the Honeywell 8C-PAIHA1 (8C-PAIHA1 Analog Input Module) provides direct physical/electrical execution.
| Code Suffix | Feature Description | Electrical / Physical Specification |
|---|---|---|
| 8C | Platform Designation | Experion PKS Series 8 hardware form factor |
| PAI | Module Function | High-density Analog Input module |
| H | Communication Feature | Integrated HART protocol pass-through support |
| A1 | Revision / Channel Density | 16-channel hardware configuration (Part Number: 51454470-275) |
| Parameter | Specification |
|---|---|
| Model | 8C-PAIHA1 (Part Number: 51454470-275) |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.8 kg |
| Dimensions | 12.7 x 12.7 x 12.7 cm |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | Standard Series 8 backplane power bus load |
| System Platform | Experion PKS Series 8 |
| Input Capacity | 16 channels |
| Signal Range | 4-20 mA DC |
| Protocol Compatibility | HART 5, HART 6, HART 7 |
| ADC Resolution | 16-bit analog-to-digital converter |
| Galvanic Isolation | 1500 VDC field-to-logic isolation |
| Mounting | Plugs into Series 8 I/O Termination Assembly (IOTA) |
This module features 16-bit analog-to-digital conversion integrated with transparent HART protocol pass-through across all 16 isolated channels. The internal signal conditioning circuit modulates digital frequency-shift keying (FSK) HART signals directly over the primary 4-20 mA DC loop without degrading the primary process variable acquisition. Built-in 1500 VDC galvanic isolation between field-side wiring and internal logic circuits suppresses common-mode voltage spikes, preventing cross-channel electrical interference from corrupting C300 controller memory registers.
Q: Does removing or inserting the module disrupt field wiring on the Series 8 platform?
A: Field wiring connects directly to the underlying Input Output Termination Assembly (IOTA), allowing the electronic module to be installed or replaced without disconnecting field wiring terminals.
Q: How does the module handle HART pass-through data to upper-level asset management systems?
A: The module separates digital FSK HART signals from the primary 4-20 mA current loop on each channel and passes secondary variables and diagnostic status data directly to the C300 controller and Experion Asset Management software.
Q: Can this module be deployed in high-availability redundant configurations?
A: High-availability redundancy requires installing a matching pair of 8C-PAIHA1 modules onto a redundant Series 8 IOTA block, which manages primary and secondary hardware failover automatically.
Align the card pins precisely with the designated slot connectors on the Series 8 IOTA board and apply uniform downward pressure until the locking tabs snap firmly into place. Ensure field wiring shielding grounds at one single point on the IOTA shield bar to prevent ground loop currents from injecting noise into the 16-bit ADC circuits. Maintain separated cable ducting for incoming 4-20 mA instrument field cables away from high-voltage AC power distribution lines to maintain 1500 VDC galvanic isolation integrity.
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