SIPLUS S7-300 SM321 16DI/120/230VAC -40...+70°C with conformal coating based on 6ES7321-1FH00-0AA0. Digital input electrically isolated 16DI, AC 120/230V, 1x 20-pin Like the CPU, the digital input 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 reliably recorded.
