User Manual

Delay times for inputs and
outputs
293
08/04 AWB2528-1423GB
Delay times with easy-DC basic units
The delay time for DC signals is 20 ms.
Figure 126: Delay times for easy-DC
An input signal S1 must therefore be 15 V or 8 V for at least
20 ms on the input terminal before the switch contact will
change from 0 to 1 (A). If applicable, this time must also
include the cycle time (B) since easy does not detect the
signal until the start of a cycle.
The same debounce delay (C) applies when the signal drops
out from 1 to 0.
If the debounce is switched off, easy responds to an input
signal after just 0.25 ms.
Figure 127: Switching behaviour with input debounce disabled
1
0
1
0
S1
B
A
B
C
h
If you use high-speed counter function blocks, the
debounce delay time for the inputs is 0.025 ms. Otherwise
it is not possible to count high-speed signals.
1
0
1
0
S1
B
A
C
B