The SIMATIC S7-1200 SM 1231 TC (model number: 6ES7231-5QD32-0XB0) is a specialized analog input module manufactured by Siemens, designed for the SIMATIC S7-1200 series of programmable logic controllers (PLCs). This module is specifically engineered to directly receive and convert thermocouple signals into digital values, making it ideal for industrial applications requiring high-precision temperature measurement. The module features 4 analog input channels, enabling simultaneous data acquisition from multiple thermocouples. It provides a reliable solution for automating temperature monitoring and control in industrial processes. The module has a net weight of 0.160 kg and packaging dimensions of 8.80 x 10.90 x 5.70 cm.\n