***spare part*** SIPLUS S7-1200 SM 1223 16DE/ 16DQ based on 6ES7223-1BL30-0XB0 with conformal coating, 0…+55 °C, digital input/output 16 DI/16 DQ, 16 DI 24 V DC, sink/source, 16 DQ, transistor 0.5 A Just like the CPU, the digital input and output modules are also protected against extreme ambient conditions. Due to the 100% conformal coating they can withstand biologically, chemically and physically active substances, condensation, frost, and corrosive gases. Regardless of the conditions, your digital signals are reliably recorded.