Time based events

[gdmac1]

Hi there,

I'm new to LabView and I am unable to find a solution to the problem below.

I have a VI which takes a number from a control, when the number control changes, the voltage on the appropriate channel changes and it works fine however. it is for an experiment which needs the voltage to change at irregular intervals, any idea how I could automate this? My own thoughts were to read 2 columns off a spreadsheet, one containing the seconds into execution, the other containing the voltage to change to when that time elapses. Below is a simple example of data. There could also be any number rows, not just 4. 

Example:

Seconds| Voltage

5           | 7

7           | 6

11         | 8

406       | 4

A steer in the right direction would be much appreciated. 

Thanks

[jcarmody]

I like using the Elapsed Time Express VI for this.  The For Loop iterates through each time/voltage level and the While Loop keeps track of time.

[gdmac1]

Thanks very much for that. That is exactly what I had in mind. I am having difficulty implementing it, even with the picture above. Would you be willing to send me that VI in an e-mail?

Thanks again.

[jcarmody]

That image is actually a VI Snippet.  Here's the VI saved back to 8.6.