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Product Introduction
The Honeywell 8C-PDILA1 (51454471-175) is a high-density, industrial-grade digital input module designed for use within Honeywell’s Experion PKS (Process Knowledge System) and C300 Controller platform. As part of the renowned Series 8 family, the 8C-PDILA1 is engineered to meet the demands of process automation in critical applications across energy, chemical, oil & gas, and manufacturing sectors.
This module supports 32 digital input channels, accepting 24 VDC logic-level signals. It features per-channel isolation to prevent signal interference and ensure robust fault protection. Engineered for reliability and operational efficiency, the 8C-PDILA1 offers advanced diagnostics including open-wire detection and input status indication, which simplify commissioning and maintenance activities. Its modular and compact architecture also allows for hot-swap replacement, making it a valuable asset for minimizing downtime in continuous process environments.
Technical Specifications
| Parameter | Details |
|---|---|
| Model Number | 8C-PDILA1 |
| Part Number | 51454471-175 |
| Product Type | Digital Input Module |
| System Compatibility | Honeywell C300, Experion PKS |
| Input Voltage | 24 VDC nominal |
| Number of Input Channels | 32 (Logic-level) |
| Input Signal Type | Sourcing field device or dry contact |
| Input Current (Typical) | 8 mA |
| Channel-to-Channel Isolation | 500 V RMS |
| Input Filter Time | Configurable (typical: 1–100 ms) |
| Status Indicators | Per-channel LED status |
| Hot Swap Capability | Yes (supported with proper system redundancy) |
| Fault Detection | Open wire, short circuit, stuck-at detection |
| Power Supply | Via backplane |
| Power Consumption | Approx. 6.5 W |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5% to 95% RH, non-condensing |
| Mounting Type | Rack/DIN rail (via universal mounting base) |
| Dimensions (W × H × D) | 60 x 155 x 145 mm |
| Weight | 0.3 kg |
| Certifications | CE, UL, CSA, SIL2, ATEX, GOST |
| Compliance | RoHS, WEEE compliant |
Product Applications
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Oil & Gas Processing Plants: Interfaces with emergency stop circuits, compressor trip signals, and valve interlocks.
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Chemical and Petrochemical Facilities: Suitable for input from limit switches, position sensors, and contactors.
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Power Generation: Captures digital states from turbine control systems, switchgear status, and fault alarm panels.
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Manufacturing Automation: Used for feedback from machine sensors, limit switches, and control buttons.
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Water Treatment Systems: Reads digital signals from motor controllers, level switches, and fault indicators.
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Mining and Metals Processing: For rugged environments needing isolated digital inputs from protective relays and field switches.
Product Advantages
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High-Density Input Capacity: 32 isolated channels in a compact footprint, reducing control panel space.
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Advanced Fault Diagnostics: Detects open wire, stuck-at faults, and wiring issues to enhance system safety and maintenance efficiency.
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Electrical Isolation: 500 V isolation minimizes interference and protects both equipment and personnel.
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Hot-Swappable Design: Enables quick replacement during runtime, supporting continuous plant operation.
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Real-Time Status Monitoring: Individual channel LEDs provide immediate feedback on signal state and health.
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Rugged Design: Built for harsh industrial environments with extended temperature and humidity tolerances.
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Easy Integration: Seamlessly fits into existing Honeywell Experion and C300 controller environments.
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Reduced Downtime: Diagnostic features and modular design contribute to faster fault localization and system restoration.
Frequently Asked Questions (FAQ)
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What is the input voltage range supported by the 8C-PDILA1?
The module is designed for 24 VDC logic-level inputs, typically ranging between 18–30 VDC. -
How many inputs does this module provide?
It offers 32 individually isolated digital input channels. -
Is hot-swapping possible with this module?
Yes, it supports hot-swapping in redundant and fault-tolerant configurations. -
Does this module support diagnostic feedback?
Yes, it includes diagnostics for open wires, short circuits, and signal integrity. -
Can I monitor the status of each input directly on the module?
Yes, each input channel has a corresponding LED indicator for status display. -
Is the module suitable for safety-related applications?
Yes, it is SIL2 certified and can be used in safety instrumented systems when properly configured. -
What happens if a connected input wire breaks?
The module will detect the open-wire condition and report it via diagnostics. -
How does this module differ from 8C-PDIL51?
The 8C-PDILA1 includes advanced diagnostics and may support intrinsically safe (IS) wiring options, depending on configuration. -
What type of field devices can be connected to this module?
It supports dry contact switches, sourcing outputs, and most 24 VDC discrete sensors. -
What environments is the module certified for?
It carries CE, UL, CSA, ATEX, GOST, and SIL2 certifications, making it suitable for global industrial applications.
Related or Same Series Models
| Model Number | Description | Type | Channels | Certifications |
|---|---|---|---|---|
| 8C-PDIL51 51454359-175 | Standard Digital Input Module | Digital Input | 32 | SIL2, CE, UL |
| 8C-PDODA1 51454472-175 | Digital Output Module | Digital Output | 32 | CE, ATEX, CSA |
| 8C-PAIH51 51454352-175 | Analog Input Module | Analog Input | 16 | SIL2, CE, UL |
| 8C-PAOHA1 51454469-175 | Analog Output Module | Analog Output | 16 | CE, CSA, RoHS |
| 8C-TAOXA1 51307022-175 | IS Analog Output Module | Analog Output (Ex) | 8 | ATEX Zone 1 Certified |
| 8C-TAID61 51307177-175 | Temperature Input Module | Thermocouple Input | 16 | CE, UL, SIL2 |
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