The SIPLUS S7-300 SM 331 8AI (6AG1331-7NF00-2AB0) is an analog input module from Siemens, designed for \nSIMATIC S7-300 systems. It features 8 analog inputs (AI) supporting signal types ±5/10 V, 1-5 V, ±20 mA, and 0/4...20 mA, \nwith 16-bit resolution and a 55 ms measurement time, along with a common contact (50 V com.) and potential isolation. \nThe module connects via a 1x 40-pin front connector. Equipped with conformal coating \nand capable of operating in a temperature range of -25 to +70 °C, it is ideal for harsh industrial environments. \nDIN rail mounting and a compact design ensure easy installation in control cabinets while saving space. \nIt is used in industrial automation systems, particularly for precise measurement and control of analog signals.