The Allen-Bradley 1756-IA32 is a ControlLogix digital AC input module manufactured by Rockwell Automation.
It provides thirty-two (32) input channels organized into two groups of sixteen (16) channels each.
The module accepts AC input signals within a voltage range of 74–132 V AC at 47–63 Hz, making it suitable for a wide range of industrial AC sensing applications.
The 1756-IA32 can be installed in any local or distributed ControlLogix chassis and connects to field devices that operate on standard 120 V AC logic levels.
It is ideal for monitoring AC limit switches, sensors, and contactor feedback signals in process and machine control systems.