No. I said put Active Plot BEFORE the Plot Name.
Look at the modified VI I attached.
There are couple things you need to note.
1. I set up the waveform chart to have 5 samples of NaN at the very beginning before creating plot names. That way it has 5 plots before you start changing the name. Otherwise, you'll get an error for a plot that doesn't exist yet because it had not received data.
2. No need to keep changing/overwriting the plot names every iteration.
3. Don't add +1 to i for active plot. The first plot is index 0.
4. You don't need Array Size wired to N. The auto-indexing tunnel already controls how many times the loop runs, once fore each element in the array.
5. You create 5 random numbers, but wire them to the chart one at a time. The chart treats that as a single plot, with 5 data points in a row. Not 5 plots each with 1 data point. So I had to do some array manipulation for the chart to understand the datapoints have different plots.
6. Generating the plot name could be simplified (I didn't pay attention to that until now) with a Format into String with a format string of "Name of value %d" That will combine the concatenate strings and format decimal number into string into a single node.
Work with the VI I attached earlier.
