Rigol DP832A recorder question - Page 1
Forum section: electronics / testgear

author: drummerdimitri
author_rank: Frequent Contributor
timestamp: August 12, 2019, 10:34:58 am
content: I am confused about the recording function.in the manual, it says I can record up to 614400 points in external memory which I am assuming means a USB flash drive correct?I'd like to record data every second so I set the record period to 1s so does that mean I can record for up to 614400 seconds or around 170 hours?

author: drummerdimitri
author_rank: Frequent Contributor
timestamp: August 13, 2019, 05:34:24 pm
content: BUMP!

author: RoGeorge
author_rank: Super Contributor
timestamp: August 13, 2019, 06:47:15 pm
content: I don't remember what the "Recorder" function was supposed to save on the USB, or for how long, but if you just need to log the values, a few lines in Python can do just that: save the DP832 I, U, & P values on a PC. Does this solves your question?https://github.com/RoGeorge/DP832_charger_loggerDP832_charger_logger - is a program displaying and logging the Voltage, Current and Power of all channels of a DP832 power source, while saving the data in the PC as CSV. The CSV file can be copied and used while the logging is still running, no need to wait until the logging has finished.On short, the program can constantly read the DP832 displayed values and store them on a computer, for as long as you wish, on any operating system that can run Python, using nothing but a LAN cable and a computer. No drivers needed.

author: drummerdimitri
author_rank: Frequent Contributor
timestamp: August 13, 2019, 10:34:41 pm
content: Quote from: RoGeorge on August 13, 2019, 06:47:15 pmThanks for informing me about that script however I have never used python and probably wont if the learning curve is steep.All I need right now is an answer to my above question

author: RoGeorge
author_rank: Super Contributor
timestamp: August 14, 2019, 02:04:06 am
content: Quote from: drummerdimitri on August 12, 2019, 10:34:58 amFound the manual.- Yes, there are USB ports on the backpanel of the DP832 where an external USB flash drive can be plugged. Annoying location and hard to reach for plugging/unplugging USB unless you have access to the back of the workbench, because the unit is deep in size and very heavy to lift.- Yes, your calculations seems correct, but once the recording is started, the other buttons on the front panel won't work any more, so you can not modify any settings unless the recording mode is stopped and the resulting file is saved.About the logger I used, that script doesn't require from the operator to learn Python. It's enough to have the Python interpreter installed, and it will just work when the script is started. Also, it will let you record and operate the DP832 in the same time with the recording.Rigol manuals are pretty well written, didn't found mistakes yet. Weird numbers found inside Rigol manuals can be trusted (like 614400). If you plan to buy one, then DP832 and DP832A have identical hardware inside. If on a budget, buy the cheaper DP832, and unlock the DP832A features later.

author: tdarlic
author_rank: Contributor
timestamp: May 14, 2021, 06:40:59 pm
content: Here's a repo with simple python script to convert DP832 ROF file to CSVhttps://github.com/tdarlic/rigol-rof-to-csv