rsdoran
Lifetime Supporting Member
Maybe someone has a different term to express this concept. It applies to a situation where a sensor has activated but has to deactivate before the next step activates.
In the attached pdf is a Versa Pro program for an L-Sealer. This is a device that takes packages from an incoming conveyor then pushes then into packaging film then an arm comes down to cut and seal the package. It is then transported into an oven.
In my case I had a ZERO budget and only a few weeks to modify 3 machines. I did have numerous GE 90-30's (system pulls) and other used parts. They did allow the lead man in that dept. to do much of the work as I had to perform regular duties first and that when not too busy. It actually succeeded fair beyond what we expected, so much so that they eliminated a shift and went with 2-10 hr a day shifts with make up rarely needing more then 1 extra shift to come in on Friday.
Anyway in the pdf rungs 8 is the PACKAGE WAS DETECTED BIT. In this situation the sensor detected the package as present then set a bit to show it WAS DETECTED, after X amount of time after NOT being DETECTED to allow package to be in position, it then pushed it into the film wrap; rung 9.
This is just to get the ball rolling, I hope, and others will provide possibly better examples or explanation of this simple but elusive concept.
In the attached pdf is a Versa Pro program for an L-Sealer. This is a device that takes packages from an incoming conveyor then pushes then into packaging film then an arm comes down to cut and seal the package. It is then transported into an oven.
In my case I had a ZERO budget and only a few weeks to modify 3 machines. I did have numerous GE 90-30's (system pulls) and other used parts. They did allow the lead man in that dept. to do much of the work as I had to perform regular duties first and that when not too busy. It actually succeeded fair beyond what we expected, so much so that they eliminated a shift and went with 2-10 hr a day shifts with make up rarely needing more then 1 extra shift to come in on Friday.
Anyway in the pdf rungs 8 is the PACKAGE WAS DETECTED BIT. In this situation the sensor detected the package as present then set a bit to show it WAS DETECTED, after X amount of time after NOT being DETECTED to allow package to be in position, it then pushed it into the film wrap; rung 9.
This is just to get the ball rolling, I hope, and others will provide possibly better examples or explanation of this simple but elusive concept.