PSSu E S 2AI U 312440 PSSu, electronic module, standard, analogue inputs and outputs, 2inputs, 3 configurable voltage ranges, 0 – 10 V, single-pole, referenced toearth, – 10/0 – 10 V, dual-pole, differential input, resolution 12 Bit. PSSuniversal – PLC Controller PSSu, head module with increased performance, control system PSSu PLC, failsafe and standard, PL e, SIL CL 3, 2 RJ45