SIPLUS S7-400 SM 431 16AE based on 6ES7431-0HH00-0AB0 with Conformal Coating, 0 to 60 °C. Like the CPU, the analog input modules are also protected against extreme environmental conditions. Thanks to the 100% Conformal Coating, they resist biological, chemical, and mechanically active substances, condensation, frost, and harmful gases. No matter the conditions, your analog signals will be reliably captured.