Rockwell / Allen-Bradley 1769-IQ32 CompactLogix 24V DC 32-Point Sink/Source Input Module

The Rockwell Automation 1769-IQ32 is a 32-point digital input module for CompactLogix and MicroLogix 1500 PACs, delivering high-density I/O in a compact 1.5-inch slot width. Operating at 24V DC with selectable sink/source configuration, the module accepts input signals across 10–30V DC (@ 30°C) or 10–26.4V DC (@ 60°C), with 8 ms response time on both rising and falling edges. The module organizes 32 channels into four independent groups of eight inputs each, with individual status LEDs and optical isolation rated at 75V DC working voltage (1200V AC / 1697V DC dielectric test).

Removable terminal blocks accommodate 22–14 AWG solid or 22–16 AWG stranded copper wire, torqued to 0.68 N·m. Input impedance measures 5.2 kΩ @ 24V DC and 6.1 kΩ @ 30V DC, with maximum inrush current of 250 mA. The module draws 130 mA from the backplane at 5V DC and dissipates 4.6 W maximum.

Rated for 0°C to +60°C operation and DIN rail or panel mounting, the 1769-IQ32 integrates directly with RSLogix 5000 or Studio 5000 programming environments.

Technical Specifications

• Inputs: 32-point, organized as 4 groups of 8


• Input Type: 24V DC sink/source selectable


• Operating Voltage: 10–30V DC @ 30°C; 10–26.4V DC @ 60°C


• Input Thresholds: On-state minimum 10V DC / 2 mA; off-state maximum 5V DC / 1.5 mA


• Response Time: 8 ms on / 8 ms off


• Input Impedance: 5.2 kΩ @ 24V DC; 6.1 kΩ @ 30V DC


• Maximum Inrush Current: 250 mA


• Backplane Current Draw: 130 mA @ 5V DC


• Power Dissipation: 4.6 W maximum


• Isolation Voltage: 75V DC working; 1200V AC / 1697V DC dielectric tested


• Module Width: 1.5 inches (1 slot)


• Dimensions: 118 × 52.5 × 87 mm (4.65 × 2.07 × 3.43 inches)


• Weight: 440 g (0.97 lbs)


• Operating Temperature: 0°C to +60°C


• Storage Temperature: −40°C to +85°C


• Operating Humidity: 5% to 95% non-condensing


• Wire Size: 22–14 AWG solid; 22–16 AWG stranded (copper, 90°C rated)


• Terminal Screw Torque: 0.68 N·m (6 lb·in)

Key Features

• Selectable sink/source input configuration


• Individual channel status LEDs for diagnostics


• Four independently isolated input groups


• Optical isolation protecting logic circuitry


• Removable terminal blocks for tool-free wiring


• DIN rail and panel mount capability

Typical Applications

• Industrial process control and automation


• Discrete sensor integration (limit switches, proximity sensors)


• Multi-zone machine safety circuits


• Distributed I/O in space-constrained control cabinets

Compatibility & Integration Direct integration with CompactLogix 1769 series and MicroLogix 1500 PACs. Full support in RSLogix 5000 and Studio 5000 programming software.