Attached are 2 images of sub.vis buried deep within a program I am making - the goal was to make a giant "turn everything off" button that would work at any time during the main program's excecution.
The program shown in attachment "Block 2" is one section of what is basically the 'heartbeat' of my program, and it is called in the .vi shown in "Block 1" with the label "1 second read, hereby renamed to 2 second read".
The main program calls the front panel of the 2 second read program, so that the boolean button "Emergency Stop" (shown on "Block 2") can be pressed at any time.
When the 'Emergency Stop' is false, the case structure doesn't execute and the program continues on its merry way. If 'Emergency Stop' is true, the case structure shown in "Block 2" should execute, shut off the power to my signal generators, and send itself into an infinite loop until someone tells it to stop.
The mechanical action is set to "switch when pressed" so it should not reset once the state is read, however, for some reason the state of the button just resets after pressing it (usually with a 1-2 second delay), the case structure to turn everything off is never executed, and the program just keeps on running.
I have tried both with and without the shift registers shown in "Block 1".
The only thing left I can see that I haven't tried is to move the button itself up a level so that it is the front panel of "Block 1" that is called, rather than "Block 2", that I use for the button.
Any advice would be greatly appreciated. If something isn't clear, let me know and I will be happy to try and elaborate.
