Debouncing on input to digital pins?

8 years 4 months ago #29527273 by houshun.poh
Hi,

I am trying to use a normally open, press to close, turn to reset switch to activate an estop or safety stop on my SDC2150. I am curious, the usual configuration requires either a pull-up or pull-down resistor depending whether it is set for active high, or active low. However, is there a need for a debouncing circuit for the input to prevent the controller from reading multiple presses?

Thank you very much.

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8 years 4 months ago #29527275 by roboteq
Replied by roboteq on topic Re:Debouncing on input to digital pins?
THere is no need for debounce because it doesnt matter for emergency stop whether the switch bounced.

Once the first contact detected, the controller will enter emergency stop mode. If the contact goes of and one, the emergency stop will remain.

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