Siemens Simatic S7-300 Analogue input module, 8 channels, 16bitProduct Overview SIMATIC S7 300 Analog Input SM 331, Isolated, 8 AI; 5 10V, 1 5V, 20mA, 0 4 to 20mA, 16 bit (55ms), Single rooting (50V COM.), 1x 40 pole This high performance analog input module is designed for SIMATIC S7 300 automation systems, providing eight optically isolated analog input channels with 16 bit resolution. The module supports both voltage and current measurement types with programmable ranges per channel group, making it ideal for