Allen-Bradley 1746-IA16 is a 16-channel digital input module designed for the SLC 500 PLC system. It accepts 100/120 V AC input signals (50/60 Hz) across all channels, providing 16 discrete inputs that feed the SLC backplane. This module is intended for connecting field devices such as pushbuttons, limit switches, and sensors operating on line AC voltage, enabling straightforward expansion of industrial automation I/O with a single 16-point AC input block.
