1. General Information

• Manufacturer: Honeywell
• Model: 8C-PDILA1
• Part Number: 51454471-175
• Module Type: Digital Input Module (DI)
• System Compatibility: Honeywell Series 8 / Experion PKS I/O
• Coating: Conformal coated version (industrial environment protection)

2. Input Specifications

• Number of Input Channels: 32 channels
• Input Type: 24 VDC digital inputs
• Input Voltage Rating: 24 VDC
• Field Power Voltage Range: 18–30 VDC
• ON Sense Voltage / Current:
  • ≥ 13 VDC or ≥ 3 mA
• OFF Sense Voltage / Current:
  • ≤ 5 VDC or ≤ 1.2 mA
• Input Impedance: 4.2 kΩ
• Input Delay / Filter Time: approx. 5 ms ±20%

3. Electrical Characteristics

• Module Current Consumption: approx. 95 mA
• Isolation Type: Optical isolation
• Isolation Rating:
  • 1000 VAC RMS or ±1500 VDC system-to-field isolation

4. Environmental Specifications

• Operating Temperature:
  • −20°C to +55°C (typical industrial rating)
• Storage Temperature:
  • −40°C to +70°C
• Humidity: 5–95% (non-condensing)
• Altitude: up to 2000 m
• Shock Resistance: ~30 g
• Vibration Resistance: ~5 g

5. Physical Specifications

• Dimensions: approx. 100 × 22.5 × 106 mm
• Weight: approx. 0.3 kg

6. Functional Features

• 32-channel discrete signal acquisition
• Built-in diagnostics and status monitoring
• Galvanic isolation between field and system
• Supports module insertion/removal under power (hot swap)
• Supports redundant I/O architecture with compatible IOTA modules

✅ Typical Applications

• Oil & gas plants
• Chemical and petrochemical plants
• Power generation systems
• General industrial automation
• Monitoring switches, relays, and digital sensors