The analog input enables the acquisition and processing of two analog input signals. These include 0-1 V, 0-5 V, 0-10 V, 1-10 V, 0-20 mA, 4-20 mA, 0-1000 Ohm, PT100 in 2-wire technology, PT1000 in 2-wire technology (value range -50.+150 °C in each case), potential-free contact, KT, KTY and user-defined input.