The Allen-Bradley 1746-IB16 is a SLC 500 16-channel DC digital input module that provides sinking 10–30 V DC inputs for the SLC 500 backplane. All 16 inputs share a common and draw about 85 mA from the backplane at 5 V. With an input response around 8 ms, it is designed for general-purpose digital inputs such as pushbuttons and limit switches in 24 V DC field circuits. This module plugs into an SLC 500 chassis via the 1746 backplane and delivers 16 discrete input points for straightforward binary signaling in industrial control applications.
