SIPLUS S7-300 SM 331 20-pole based on 6ES7331-7KF02-0AB0 with conformal coating – -25ÔǪ+70 -¦C – analog input isolated 8 AI – resolution 9/12/14 bits – U/I/thermocouple/resistor – alarm – diagnostics – 1x 20-pole removing/inserting with active backplane bus