LabVIEW
count a number of support on a button
The basic idea is shown in the image below.
img
This works by holding the count value in the shift register and only incrementing the value when the button is clicked. The "Select" function will only pass a value through either the "T" or "F" terminals depending on the value of the connected button. So the count value will only increment when the button is clicked.
There's other ways to do this, but this is the simplest and easiest to work into an application. If you are using an Event Structure, that can be used to detect the button click and increment the counter as well.
Let us know if you need more help.
Ed
img
This works by holding the count value in the shift register and only incrementing the value when the button is clicked. The "Select" function will only pass a value through either the "T" or "F" terminals depending on the value of the connected button. So the count value will only increment when the button is clicked.
There's other ways to do this, but this is the simplest and easiest to work into an application. If you are using an Event Structure, that can be used to detect the button click and increment the counter as well.
Let us know if you need more help.
Ed
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.
Make sure the "Mechanical Action" of the button is set to either "Latch when Pressed" or "Latched when released".
(right click on the button and select "Mechanical Action" from the context menu)
The counter will only increment when the button value is "True".
If you need to use one of the "Switch" actions instead of the "Latch" actions so it increments each time there is a state change, you'll need to add an extra bit of logic to detect these changes.
Ed
(right click on the button and select "Mechanical Action" from the context menu)
The counter will only increment when the button value is "True".
If you need to use one of the "Switch" actions instead of the "Latch" actions so it increments each time there is a state change, you'll need to add an extra bit of logic to detect these changes.
Ed
Message Edited by Ed Dickens on 04-26-2006 07:33 AM
