Can anyone help me out with this problem? i wanna install a photo beam on site A
If a vehicle stop at site A i want my timer card to do ...something like
If Object block the photo beam it will activate the timer card and if the time timeout at 60sec it will trigger my siren if before 60 sec the odject unblock my photo beam the timer card will reset the 60second countdown .. any idea how to built this card?
If a vehicle stop at site A i want my timer card to do ...something like
If Object block the photo beam it will activate the timer card and if the time timeout at 60sec it will trigger my siren if before 60 sec the odject unblock my photo beam the timer card will reset the 60second countdown .. any idea how to built this card?