Hi intern_vt,
LabVIEW has a Random Number VI in the Numeric Palette, which generates a random number between 0 and 1. You can multiply this generated number by 50 to get random values between 0 and 50. You can simulate a "sleep" function between generations by putting the Random Number VI inside a loop with a "Wait" function (Time and Dialog palette). If you have further questions in this area, you should start a new thread in the LabVIEW forum.
Thanks,
Lesley Y.