Allen-Bradley 1769-IQ16 16-Point 24V DC Input Module

The Allen-Bradley 1769-IQ16 is a 16-point 24 VDC digital input module designed for CompactLogix and MicroLogix 1500 control systems. It provides sixteen discrete 24V DC input channels for monitoring sensors and switches in machine control panels across packaging lines, conveyors, motor control centers, and process equipment, with group isolation to protect the backplane. Key specifications include a 10–30V DC input range, sinking/sourcing compatibility, and a nominal 6 mA input current at 24V, while the backplane draws 120 mA at 5V DC. Mounting supports DIN rail or panel configurations within a Compact I/O system, and it operates from 0°C to 60°C. This module is commonly used for input expansion, panel retrofits, and replacement of failed digital input modules in automation projects. Common replacements include Allen-Bradley 1769-IQ16F, 1769-IA16, and 1734-IB8, reflecting its role within CompactLogix and related 1769 I/O platforms.