SIPLUS S7-300 SM 322-20-pin. based on 6ES7322-1BH01-0AA0 with conformal coating, -25.+70°C, digital output isolated 16DO, DC 24V, 0.5A, total current 4A/group (8A/module) Like the CPU, the digital output modules are also protected against extreme environmental conditions. Thanks to the 100% conformal coating, they withstand biological, chemical and mechanically active substances, condensation, frost and harmful gases. No matter what the conditions - your digital signals are output reliably.