Allen-Bradley 1769-IA16 16-Channel Digital Input Module

The Allen-Bradley 1769-IA16 is a 16-channel digital input module for CompactLogix systems that monitors 120 V AC signals from field devices such as switches and sensors. Designed for modular PLC control, it accepts 79–132 V AC at 47–63 Hz and transmits channel status to the backplane with channel-to-backplane isolation. The module draws about 120 mA from the backplane at 5.1 V DC and supports DIN rail or panel mounting within a Compact I/O system. It operates reliably across 0 to 60 °C (32 to 140 °F), making it suitable for typical industrial environments. Common applications include conveyor and material handling systems, automated manufacturing equipment, packaging machinery, and motor control centers where AC input signals must be monitored by a PLC. As part of Allen-Bradley’s 1769 Compact I/O family, the 1769-IA16 is frequently used to expand input capability or replace existing modules in PLC control systems, with compatible alternatives including 1769-IQ16, 1769-IB16, and 1769-IA8.