LABVIEW software communicates with oscilloscope via USB

I used the TBS 2104X four-channel oscilloscope to communicate with the software Labview(software version Labview2020, software examples can also be downloaded from Tektronix official website) through the oscilloscope USB interface to read the amplitude and frequency of sine wave signals.

The first channel can read the amplitude and frequency of the waveform; At this time, I read the amplitude and frequency of the second channel and change the channel number to Channel2. When Labview software is running, the second channel on the oscilloscope display panel will be automatically closed, and only the first channel can be displayed. Is the command setting error caused, trouble guidance, thank you very much.

Hi Mr Zhou,

<a href="https://www.tek.com.cn/manual/oscilloscope/tbs2000b-series-oscilloscopes-tbs2000">TBS2000B Series Programmer Manual | Tektronix</a><br> <br> So how did you change the channel to channel2? Did you update the code to open and select channel2?&#160;<br> <br> Please refer to the Page 245 for the channel selection.<br> <br> Just a reminder, the LabVIEW demo is just for reference, it could not do everything what you want.<br> &#160;you need to do the coding yourself.