I can see in Database there is a button to output to xml or CSV, and I can cope with doing that, and importing into Excel or something.
Is there somewhere I can get a description of what the columns mean?
See some notes in the other thread:- http://www.navitron.org.uk/forum/index.php/topic,16202.msg188716.html#msg188716
Being able to export the entire myLogData.sdf as csv rather than just one day is an issue that I have raised as there was a button in a previous version to do that. However, once you get to know Masterlog, you will see that you can do most anything with an individual graph from its own database.
Regarding the headings in the database pane: U and I pv are the dc voltages of the panels.
Upv is graphed by default as it's useful to detect shading issues. http://www.navitron.org.uk/forum/index.php/topic,15992.msg182849.html#msg182849
Fac is frequency to 2 decimal places.
Uac, Iac and Pact are the ac values of the inverter.
Etot is the total kWh from the inverter and Eday is the daily in Wh
Temp is the inverter heat sink temperature.
H_on is inverter running hours in seconds
E_int is the Wh since your last reading.
Clicking a menu heading will sort that column up or down.
There is a right click menu on any of the graphs to save an image for you to copy to your clipboard or 'save as' and then email.
Left click and drawing a box enables you to select any particular portion of a graph and zoom in. (If you have done that, the unzoom in the right click menu will not be greyed).
Leave the programme running in status, rather than database or history and be aware that you might lose logging if your computer is set to hibernate rather than screensaver.
There is a quirk in history recovery, but this method works fine:-Click history then day or month at the top.
Click on a past day via the calendar arrows.
Then click day in the left menu pane and it should open that day.
If you then click month and it will show all the days in a past month, similarly year will show all the past months.
To get back to the current day, just click history again.