I've been trying for a couple of days to create a program using one signal to detect front edges and the times between them. I would like the times to be added to an accumulated output on the user interface if the time is above 2 minutes and 30 seconds. If the time between edges is less than 2 minutes and 30 seconds then the time is not added to the accumulated value and the timer resets. Attached are 2 time accumulator VIs I've created, but neither are outputting values.
Only 1 sensor shining on a reflector is to be used to accomplish goal.
Starting point:
When sensors beam is broken (rising edge) by unit 1, a timer starts
Scenario 1:
When the 2 nd unit passes through and breaks the beam (2nd rising edge) and the time between units was
less than 2 minutes and 30 seconds then the timer resets and starts counting the time between the 2 nd
and 3 rd units. This process will continue to repeat for hundreds of units.
Scenario 2:
When the 2nd unit passes through and breaks the beam (2nd rising edge) and the time between units
was greater than 2 minutes and 30 seconds then the timer will start collecting the time and adding it to
an accumulated value until the 3rd unit passes through and then scenario 1 or 2 will occur again.
Example incorporating scenario 1 and scenario 2
Unit 1 passes. Unit 2 passes two minutes later. Result = no time is accumulated. Scenario 1
Unit 3 passes three minutes later. Result = cumulative time of thirty seconds. Scenario 2
Unit 4 passes four minutes later. Result = cumulative time of two minutes. Scenario 2
Unit 5 passes one minute later. Result = cumulative time of two minutes. Scenario 1
So on and so forth. This will occur for hundreds of units.
