Multiple waveform wire in Single chart

[rioriorio]

Hi everybody, 

I have a problem displaying multiple waveform wire into a single chart. It seems only one waveform is displayed.
Could you kindly point out which one I did wrong?

Thanks

[GerdW · Accepted solution]

Hi rio³,

replace that MergeSignal by an ordinary BuildArray function!

(Why do you think you need an ExpressVI here?)

[Bob_Schor]

Did you look at the LabVIEW Help for Waveform Charts?

Waveform Data Type

The waveform data type carries the data, start time, and delta t of a waveform. You can create a waveform using the Build Waveform function. Many of the VIs and functions you use to acquire or analyze waveforms accept and return waveform data by default. When you wire waveform data to a waveform graph or chart, the graph or chart automatically plots a waveform based on the data, start time, and delta x of the waveform. When you wire an array of waveform data to a waveform graph or chart, the graph or chart automatically plots all waveforms.

Read the last sentence again.

Bob Schor