I want to change setpoint value by automatic

[Jairak]

I want to change Numeric Control (my setpoint)

can you see my picture

[smercurio_fc]

It seems that you want to use a setpoint value based on your current time index. Are you keeping track of your time, or have a way of getting it? If so, you just need a simple lookup table, which you can implement as a VI. Input is time and output is setpoint value.

[Dennis_Knutson]

Here's a basic example that shows one way with a couple of arrays. One is the setpoint values and the other is the dwell time.