SIPLUS S7-300 SM 322-20-pol. based on 6ES7322-8BF00-0AB0 with conformal coating, -25.+60°C, Like the CPU, the digital output modules are also protected against extreme environmental conditions. Thanks to the 100% conformal coating, they can withstand biological, chemical and mechanically active substances, condensation, frost and harmful gases. No matter what the conditions - your digital signals are output reliably.