LabVIEW
To create RUN Button/Option to run my application
Here's a slightly different approach.
Place an Event structure before your main application loop and connect some data from within the Event structure to your main application loop. Configure the event structure to watch for your custom Run button. The main loop will have to wait until the Event fires from the Run button before it can start.
The attached example shows how to set this up. It's set to Run when Opened from VI Properties>Execution". When you open it, it will be running, but nothing will happen until you click the Start button. Note after you click the Start button, the loop counter starts incrementing.
Using this method basically puts your application to sleep until the Start button is clicked.
Now, take this one step further. Put a While loop around the Event structure and the main application loop. So now when you stop the main application loop, it goes back and waits for the user to press the Start button again.
Ed
Place an Event structure before your main application loop and connect some data from within the Event structure to your main application loop. Configure the event structure to watch for your custom Run button. The main loop will have to wait until the Event fires from the Run button before it can start.
The attached example shows how to set this up. It's set to Run when Opened from VI Properties>Execution". When you open it, it will be running, but nothing will happen until you click the Start button. Note after you click the Start button, the loop counter starts incrementing.
Using this method basically puts your application to sleep until the Start button is clicked.
Now, take this one step further. Put a While loop around the Event structure and the main application loop. So now when you stop the main application loop, it goes back and waits for the user to press the Start button again.
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.
Sorry about that. Slight oversight on my part.
What you'll need to do is have the Event structure watch for the click of the Stop button as well.
To do this, right click on the Event structure and select, "Add Event Case..". In the dialog that opens, select the 'Stop' entry in th elower left section where it lists all the controls/indicators. After that is selected, the lower right section will populate with several selections. Scroll down in this list and select "Value Change". Hit OK and the Event structure will also fire when you click the Stop button so the loop will start, but stop right away since the button was pressed.
This will however cause all the code in the loop to run once. If you don't want that to happen, yo ucould place a Case structure in the loop and control it from your Start button with all your code in the True case. This is a very simple way to handle this. A bit complex, but a lot more flexible would to use a State machine with an Event structure in an 'Idle' case.
Ed
What you'll need to do is have the Event structure watch for the click of the Stop button as well.
To do this, right click on the Event structure and select, "Add Event Case..". In the dialog that opens, select the 'Stop' entry in th elower left section where it lists all the controls/indicators. After that is selected, the lower right section will populate with several selections. Scroll down in this list and select "Value Change". Hit OK and the Event structure will also fire when you click the Stop button so the loop will start, but stop right away since the button was pressed.
This will however cause all the code in the loop to run once. If you don't want that to happen, yo ucould place a Case structure in the loop and control it from your Start button with all your code in the True case. This is a very simple way to handle this. A bit complex, but a lot more flexible would to use a State machine with an Event structure in an 'Idle' case.
Ed
