9. easyE4 inside9.4 Time behavior of the inputs and outputs9.4 Time behavior of the inputs and outputsThe reaction time, which is measured from the reading in of a digital input signal to thesetting of the associated output, is determined by the timing characteristics of thedevice inputs and outputs as well as the size and design of the circuit diagram.Input delay (debounce)The time required to switch the inputs and outputs in the circuit diagram can beincreased on the easyE4 base device using an input delay, the so-called DEBOUNCE→Section "Debounce", page 469This function is useful, for example, in order to ensure a clean switching signal despitecontact bounce.Figure 238: easyE4 input assigned a switchEASY-E4-DC-... devices and EASY-E4-AC-... devices operate with physically differentinput voltages and therefore differ in the length and evaluation of debounce times.506 easyE4 11/18 MN050009 EN www.eaton.com
