The Allen-Bradley 1756-IA16 is a 16-point digital input module for ControlLogix that accepts 79–132 V AC signals on each of its inputs. It uses a 20-pin removable terminal block for wiring and slides into a 1756 I/O chassis, communicating with the controller via the ControlLogix backplane. This 16-channel AC input module is well-suited for converting AC-powered sensors and switches—such as pushbuttons and limit switches—into digital inputs for a Rockwell Automation PLC system. Key details include 16 input points, AC input range 79–132 VAC, and compatibility with the 1756 I/O ecosystem and Rockwell software tools for configuration and diagnostics.
