DirectLOGIC DL405 Manual page 15

The Response Delay helps you understand how long it will take the Interrupt module
to latch the interrupt signal. The following diagram shows how the Off-to-On delay
affects a signal with Rising edge triggering.
Response Delay Range for Rising Edge Triggering
Rising edge
Input signal
Fast Response
(start of latch)
Slow Response
(start of latch)
For falling edge triggered signals, the On-to-Off delay is more important. This is
because the Interrupt module "waits" for a normally high signal to go low before it
recognizes an interrupt. So in this case, the On-to-Off delay filters out any bounce or
false signals.
Response Delay Range for Falling Edge Triggering
Input signal
Fast Response
(start of latch)
Slow Response
(start of latch)
0.08 - 0.59ms
0.5ms latch
0.88 - 6.47ms
Falling edge
0.15 - 0.89ms
1.64 - 9.81ms
13
0.5ms latch
0.5ms latch
0.5ms latch
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