ISL28022EV1Z Evaluation Kit Part 3 – Saving Data

Added on July 12, 2014
Intersil Applications Engineer demonstrates how to save your performance data using the ISL28022 digital power monitor.

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Video Transcript

The last software feature I would like to demonstrate today on the ISL28022 Demo Software is the ability to save data using the DPM Evaluation Board.

The user would choose a file to start the process of saving data. But prior to saving that data you want to check on the day that you want to save. For every Vbus measurement that is checked, the software will save data from that channel. It would save Vbus Channel:1, Channel:2, all the way through 4, but would not generate a save file for Vbus 7 and 8.

There would be a separate file for Vshunt as well, and again it works in a similar fashion. Data would be saved for Channel:1 through 4, but not 7 and 8. Nothing would be saved for "Current" for Channel:1, but for Channel:2 there would be.

The software allows you to uniquely name each Channel. For this one, I'll just say a "Separate Voltage". And for this one I'll say "Resistor Divider". I'm going to shut off Channel:3, 4, and 5 from collecting any data. Now I'm going to choose "File…" Okay, everything is shut off except from Channel:1 and 2. I'm going to choose "Save data".
At this time, it will ask you where to save the data, and what the filename is. This will be your base name for all the files to be saved.

What would happen is that since Vbus is activated. It'll be "ISL Demo", "Vbus data set", "Vshunt data set". Each file will have the suffix of what you're measuring. The dialog box then follows, asking how many points you want to save consecutively. I'm going to choose 100. The data collection will start once I press "Okay".

Once the files are generated you will stop seeing the numbers flicker for the measurements that you are generating. The other thing is that "Start data collection" will resume, the button, it won't say "Stop data". And now what I'm going to show you is that since I have put it on my desktop, I'm going to show you the files it has generated.

Since we had only Channel:2 selected to make "Current" measurements, you'll see a file that says "isl28022Demo_current_dataset". We'll double click on this. It's a .csv file.

In Excel you can see that it will tell you the 100 points. As you can see the whole data set is here. 100 points have been recorded. The time for each time the measurement was taken is recorded; 0.3, 0.6, etc. And then the "Resister Divider," remember the name we gave a site to, the "Resister Divider,” this tells you what the readings are.

The one last Excel sheet I want to show you, let's look at the Vbus. Vbus was chosen on Site 1 and Site 2 to be measured and in one Excel file you see…the points again, trust me it goes from 0 to 99, the time for Site 1, when it was measured, and the Voltage it measured at that time. You can see it for Site 2 Resister Divider separately.

This concludes our demonstration on the ISL28022.