Siemens 6ES7 331-7PF10-0AB0 is the SM331 AI 8xTC analog input module for SIMATIC S7-300, delivering eight thermocouple inputs for temperature measurement. It provides 16-bit resolution with an internal 24-bit representation per Sigma-Delta processing, and supports thermocouple types B, E, J, K, L, N, R, S, and T. The module plugs into the S7-300 backplane to expand analog input capability for temperature sensing in automation and process-control applications.
