SIPLUS S7-400 SM 421 32DE based on 6ES7421-1BL01-0AA0 with conformal coating, -25.+60°C, 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.
