A-B 1769-IQ32 Digital Input Module

Allen-Bradley 1769-IQ32 Digital Input Module (CompactLogix)

 

 

The Allen-Bradley 1769-IQ32 is a 32-point 24V DC digital input module used in CompactLogix and MicroLogix 1500 systems. It is designed to collect ON/OFF signals from field devices such as sensors, pushbuttons, switches, and relay contacts, and send them to the PLC controller for processing.

Key Specifications

• Model: 1769-IQ32
• Brand: Allen-Bradley (Rockwell Automation)
• Series: Compact I/O (1769)
• Product Type: Digital Input Module
• Input Channels: 32 points
• Input Voltage:
  • 10–30 VDC (24V DC nominal)
• Input Type:
  • Sinking / sourcing compatible
• Channel Groups:
  • 4 groups × 8 inputs
• Input Delay:
  • ~8 ms typical
• Isolation:
  • Up to 1200V AC / 1697V DC isolation
• Mounting:
  • DIN rail / panel mount in 1769 system

What it does (simple explanation)

Field Devices (switches, sensors)
↓
1769-IQ32 Input Module
↓
PLC Controller (e.g., 1769-L33ER)
↓
Control logic / HMI / SCADA

It simply reads 32 ON/OFF signals from machines and sends the status to the PLC.

Main Functions

• Reads digital ON/OFF signals
• Interfaces with sensors and pushbuttons
• Provides machine status feedback
• Sends input data to PLC logic program
• Supports industrial control monitoring

Key Features

• High-density 32-channel input design
• 24V DC industrial standard compatibility
• Grouped inputs for easy wiring (8 per group)
• LED indicators for each channel status
• Stable response time (~8 ms)
• Strong electrical isolation for industrial safety
• Compact DIN-rail modular design

Applications

• Factory automation systems
• Conveyor systems
• Packaging machines
• Assembly lines
• Industrial sensor monitoring
• Machine safety and interlock systems