Allen-Bradley 1746-IA16 C01 Analog Input Module

The Allen-Bradley 1746-IA16 C01 is a 16-channel AC digital input module for the SLC 500 family. It accepts 85–132 VAC signals (47–63 Hz) from field devices and reports each channel’s ON/OFF status to the CPU via the SLC backplane, using a common terminal for all inputs. Designed for industrial automation, it plugs into a 1746 I/O rack and is controlled by compatible Allen-Bradley processors through the backplane interface. The C01 revision denotes the engineering change level, and the module provides 16 discrete input points that map to 16 input addresses in the controller’s image table. Typical use cases include monitoring start/stop buttons, limit switches, safety interlocks, and other 120V-class sensors in legacy SLC 500 installations. Pairing this module with a matching 1746 power supply and a compatible CPU enables reliable, centralized discrete input monitoring across machinery or process lines.