***spare part*** SIPLUS S7-1200 SM 1222 16RLY based on 6ES7222-1HH30-0XB0 with conformal coating, -25…+70 °C, digital output 16 DQ, relay 2 A Just like the CPU, the digital 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 output.