The Allen-Bradley 1746-FIO4I is a fast analog I/O module from the SLC 500 series, designed for high-speed signal acquisition and control in industrial automation systems. This 1746-FIO4I module features two differential analog input channels supporting 0–20 mA and 0–10 VDC signals, as well as two 0–20 mA current output channels. It provides 12-bit resolution for inputs using a successive approximation converter with an input conversion time of 7.5 µs per 512 µs, and 14-bit resolution for outputs using an R–2R ladder. This single-slot module is compatible.