Allen-Bradley 1746-IB16-C Digital Input Module

The Allen-Bradley 1746-IB16-C is a 16-channel digital input module for the SLC 500 family that reads 24V DC signals from field devices using sinking inputs, making it ideal for monitoring pushbuttons, switches, and sensors on the shop floor. It accepts a 10–30V DC input range and mounts in a 1746 backplane within an SLC 500 chassis, drawing about 85 mA of backplane current at 5V to power its circuitry; the Series C suffix identifies the Series C revision of this part. Each of the 16 inputs provides a discrete digital signal to the connected PLC, enabling straightforward wiring and reliable state capture across industrial environments and integrated diagnostics within Rockwell Automation programming ecosystems.