The 1769-IQ32T is a high-density 32-point discrete input module for Allen Bradley CompactLogix and MicroLogix 1500 controllers. Designed for maximum I/O density in minimal space, this module interfaces with 24V DC field devices such as proximity sensors, limit switches, and push buttons. Its flexible bipolar design allows for both sink or source wiring, while integrated optical isolation protects the controller backplane from electrical noise and surges, ensuring reliable operation in harsh industrial environments.
| Feature | Specification |
|---|---|
| Catalog Number | 1769-IQ32T |
| Input Channels | 32 digital points (two groups of 16) |
| Voltage Category | 24V DC (Sink/Source) |
| Operating Voltage | 10–30V DC @ 30°C; 10–26.4V DC @ 60°C |
| Max Input Current | 2.0 mA per point @ 24V DC |
| Off-State Voltage | 5V DC maximum |
| Off-State Current | 1.5 mA maximum |
| Digital Filter Time | 8.0 ms (typical) for hardware debounce |
| Backplane Current Draw | 170 mA @ 5.1V DC |
| Power Dissipation | 4.6 Watts maximum |
| Terminal Interface | 1769-RTBN18 or high-density wiring headers |
| Slot Width | 2 slots (high-density form factor) |
| Operating Temperature | 0–60°C (32–140°F) |
High-Density Inputs: 32 points in a compact module to maximize I/O per rack.
Bipolar Wiring: Supports both sink and source configurations for flexible field wiring.
Optical Isolation: Protects the backplane from electrical noise and surges.
Digital Filtering: Onboard 8 ms debounce for reliable signal capture.
Compact Design: Reduces the number of expansion modules needed for I/O-heavy applications.
Semiconductor manufacturing lines
Advanced packaging machinery
Large-scale sorting and conveyor systems
High-density automation projects requiring compact control panels
Q: How does this compare to the 1769-IQ16?
A: The 1769-IQ32T provides double the input capacity within a single module, reducing hardware cost and panel space in I/O-intensive systems.
Q: Can I wire both NPN and PNP sensors?
A: Yes, the module supports sink (NPN) or source (PNP) wiring configurations.
Q: What terminal block is required?
A: Use the 1769-RTBN18 removable terminal block or specialized high-density headers for organized field connections.
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