Change your Not Equal to 0 to Is Equal to 0.
I would use the elapsed time function to determine when 6 minutes is up. It makes more sense than tying your time to an iteration count for a while loop. Suppose later you change the pace of data? Then the number of iterations needed for 6 minutes will be a different number.
PS. You don't need two index Arrays to index out element 0 and element 1 of the same array. Just use one and drag the bottom of the function down 1 step. It will give you two outputs, element 0 and 1 automatically without needing to wire in any index constants.
