Digital Input as a Counter ... How to do it please help

Hi,

Im new to the LavView programming and i have an NI USB-6008 DAQ.

Can someone please explain me or e-mail me a code how can i use my digital input where i connected the push button as a counter so that every time when i push the push button the number will increment by one.

Please help 

Igor

I only managed to do a single array