Allen-Bradley 1756-IB32/B Input Module | 32-Point

Allen-Bradley 1756-IB32/B ControlLogix Input Module – 32-Point High-Density DC Sinking for Industrial Control

Technical Specifications

• Brand: Allen-Bradley | Model: 1756-IB32/B
• Input Voltage: 10-31.2V DC
• Point Density: 32 inputs (2×16 groups)
• Response Speed:
  • OFF→ON: 380µs + filter time
  • ON→OFF: 420µs + filter time
• Current Draw: 120mA @5.1V, 2mA @24V
• Filter Settings: 0/1/2ms (ON), 0/1/2/9/18ms (OFF)
• Power Dissipation: 6.2W max
• Thermal Output: 21.1 BTU/hr

Installation & Configuration

• Single-slot ControlLogix mounting
• RTB options: 1756-TBCH or 1756-TBSH
• Electronic keying for safety
• Configurable RPI (1-750ms)
• Drop-in replacement for legacy systems

Diagnostics & Reliability

• Real-time channel status monitoring
• Self-diagnosis for major/minor faults
• Backplane communication health checks
• Noise immunity: 50/60Hz rejection
• 250mA inrush current protection

Certifications & Support

• UL, CE, RoHS compliant
• 12-month performance warranty
• Global express shipping: FedEx/UPS/DHL
• Operating temp: 0-60°C (32-140°F)

Professional FAQs

• Q: Maximum wire length for sensors?
  A: 100m (328ft) with 18AWG cable
• Q: Can I mix NPN/PNP sensors?
  A: Designed for sinking (NPN) sensors only
• Q: Minimum ON voltage threshold?
  A: 10V DC guaranteed activation
• Q: Compatible with CompactLogix?
  A: ControlLogix chassis only
• Q: LED indicator per channel?
  A: Yes – visual status for all 32 points

Download Installation Manual

Get full technical details: ControlLogix I/O Modules Specifications (PDF)