Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 360)

Publication 1760-UM002B-EN-P - March 2005
8-6 Inside Pico GFX-70
The same debounce delay (C) applies when the signal drops out from 1 to 0.
If the debounce is switched off, Pico GFX-70 responds to an input signal after
just 0.25 ms.
Figure 8.4 Switching behavior with input debounce disabled
Typical delay times with the debounce delay disabled are:
• On-delay for
– I1 to I4: 0.025 ms
– I5 to I12: 0.25 ms
• Off-delay for
– I1 to I4: 0.025 ms
– I5, I6 and I9 to I10: 0.4 ms
– I7, I8, I11 and I12: 0.2 ms
IMPORTANT
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.
IMPORTANT
Ensure that input signals are noise-free if the input
debounce is disabled. Pico GFX-70 will even react to very
short signals.
1
0
1
0
S1
B
A C
B