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FAQ: Difference between revisions
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== How to restore a corrupted log file ==
Full information about all the log files is in the [
Both Cumulus 1 and Cumulus MX create a copy of each of the logs in the backup folder, both at end of day rollover, and when the software is (re-)started. If the corrupted file in 'data' folder is a log holding extremes (not the detailed log created for each month nor 'today.ini'), then the easiest way to remove false extremes recorded recently is to to overwrite the current file with the one from the most recent back-up. Since 'today.ini' is updated very frequently (every time Cumulus interogates your weather station), it is not advised that you overwrite that file, unless you are able to do a rewind as described in [[#On_restarting_Cumulus.2C_it_did_not_successfully_read_all_data_from_when_it_last_ran|earlier]] answer. If you were to use the backup folder copy of the detailed log, you would lose all of the stored values since the backup, so again only do that in a rewind context where all the files from the backup are overwriting those in data folder, and you simply want to copy in what is still in any station logging memory.
== I get error -32710 with Cumulus and my USB Davis station ==
The USB support in the Davis DLL which Cumulus uses doesn't seem to work. You need to use the CP210X USB/serial software which Davis supply, and use the station in serial mode. If you have previously been using your station with Weatherlink in USB mode, you will need to change to serial mode in Weatherlink before you can use the station with Cumulus. You can do this using [http://www.davisnet.com/support/weather/download/CP210X_USB_Serial_Converter_ver2.exe this utility from Davis]. See also this FAQ entry -
== When I start Cumulus, the graphs restart again each time and don't show the earlier data ==
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