The Honeywell 8C-PDILA1 (51454471-175) is a 32-channel 24VDC Digital Input module designed for the Honeywell Series 8 I/O family. This module is conformal coated, providing robust protection against moisture, dust, chemicals, and extreme temperatures in demanding industrial environments. It provides high-density input monitoring in a compact form factor, utilizing an Input/Output Termination Assembly (IOTA) for both module mounting and field wiring terminations.
| Parameter | Specification |
|---|---|
| Model Number | 8C-PDILA1 (51454471-175) |
| Input Channels | 32 |
| Voltage Rating | 24 VDC |
| Input Voltage Range | 18 to 30 VDC |
| Input Impedance | 4.2 KΩ |
| ON Sense Threshold | 13 VDC (min) / 3 mA (min) |
| OFF Sense Threshold | 5 VDC (max) / 1.2 mA (max) |
| Galvanic Isolation | 1000 VAC RMS or ±1500 VDC (System) |
| Current Rating | 95 mA |
| Field Wire Capacity | Up to 12 AWG / 2.5 mm² |
The 8C-PDILA1 is the active electronic I/O module, while the 8C-TDILA1 is the passive Input/Output Termination Assembly (IOTA) that provides the physical base for mounting and field wiring connections.
No, the module requires an external, user-supplied 24V DC power source for field excitation, which is routed through the IOTA.
The module supports optional redundancy. Redundancy is achieved by installing a second IOM onto a compatible redundant-capable IOTA, requiring no external redundancy control hardware.
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