Allen-Bradley 1746-IB32 32-Point DC Input Module

Allen-Bradley 1746-IB32 is a SLC 500 32-point DC input module that provides sinking 24V DC inputs for a backplane-based PLC system. The 32 discrete inputs are organized into four isolated groups of eight channels each, with a dedicated pair of common terminals per group to maintain isolation between groups. Designed to monitor field devices such as pushbuttons, switches, and sensors, the module plugs into a Rockwell Automation SLC backplane and draws a modest current from the DC supply (up to about 85 mA total for the module when all inputs are energized). This 1746-IB32 expands digital input capacity in traditional SLC 500 installations, delivering reliable status signals to the CPU via the standard I/O backplane interface.