8. How easyE4 works internally
8.7 Device easyE4 time responses
8.7 Device easyE4 time responses
8.7.1 Time behavior of the inputs and outputs
The reaction time, which is measured from the reading in of a digital input signal to
the setting of the associated output, is determined by the timing characteristics of
the easyE4 inputs and outputs as well as the size and design of the circuit diagram.
Input delay (debounce)
The time required from reading the inputs to switching the contacts (setting the out-
puts) in the circuit diagram can be increased on the easyE4 base device using an
input delay, the so-called I-DEBOUNCE, please refer to → Section "Debounce", page
633
This function is useful, for example, in order to ensure a clean switching signal des-
pite contact bounce.
Fig. 305: easyE4 input assigned a switch
EASY-E4-DC-... devices and EASY-E4-AC-... devices operate with physically different
input voltages and therefore differ in the length and evaluation of debounce times.
easyE402/24 MN050009ENEaton.com
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