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Data

Discussion and questions about Cumulus weather station software version 1. This section is the main place to get help with Cumulus 1 software developed by Steve Loft that ceased development in November 2014.
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ebbsi
Posts: 16
Joined: Sun 04 Sep 2011 12:50 pm
Weather Station: wh1081
Operating System: windows xp
Location: uk

Data

Post by ebbsi »

I hace a WH1081 model weather station using the cumulus software

The memory on the station has a finite capacity. Does cumulus continue to hold historical data as I assume I will have to clear the data held on the weather station. Where does cumulis hold the data and how can I access it

Thanks
AllyCat
Posts: 1132
Joined: Sat 26 Feb 2011 1:58 pm
Weather Station: Fine Offset 1080/1 & 3080
Operating System: Windows XP SP3
Location: SE London

Re: Data

Post by AllyCat »

Hi,

You don't need to clear the station log, the memory "wraps around". Just ensure that you download the data (i.e. run Cumulus) before it starts to overwrite the old data, which is something over two weeks if using 5 minute logging (or 3 months with the default 30 mins).

The data files should be stored in the path c:Cumulus/data with an explanation of their contents in the FAQ or Wiki . :)

Cheers, Alan.
ebbsi
Posts: 16
Joined: Sun 04 Sep 2011 12:50 pm
Weather Station: wh1081
Operating System: windows xp
Location: uk

Re: Data

Post by ebbsi »

Thanks Alan

So if I cleared the data on the station log when cumulus is running then I will not lose data?

I may want to do that if I go away and shut my pc down ?

Eddie
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steve
Cumulus Author
Posts: 26672
Joined: Mon 02 Jun 2008 6:49 pm
Weather Station: None
Operating System: None
Location: Vienne, France
Contact:

Re: Data

Post by steve »

If you clear the logger while Cumulus is running, you may well get odd effects - the 'live' data also comes from the logger memory. If you really have to clear the memory for some reason (I can't think of one) the best time to do it is immediately after closing Cumulus.
Steve
ebbsi
Posts: 16
Joined: Sun 04 Sep 2011 12:50 pm
Weather Station: wh1081
Operating System: windows xp
Location: uk

Re: Data

Post by ebbsi »

Well maybe I am making the wrong assumptions but here goes:

When the logger memory becomes full - if cumulus is running on my PC then I guess the date feeds directly into the software.

However if the memory is full on the logger and cumulus is not running on the PC or the PC is shut down then does the data still collect or because the memory is full it will not collect. So when I turn cumulus on again is there a gap in the data?

Eddie
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beteljuice
Posts: 3292
Joined: Tue 09 Dec 2008 1:37 pm
Weather Station: None !
Operating System: W10 - Threadripper 16core, etc
Location: Dudley, West Midlands, UK

Re: Data

Post by beteljuice »

ebbsi wrote:Well maybe I am making the wrong assumptions ...

When the logger memory becomes full ...
... because the memory is full it will not collect...
AlleyCat wrote:You don't need to clear the station log, the memory "wraps around" ...
Image
......................Imagine, what you will KNOW tomorrow !
AllyCat
Posts: 1132
Joined: Sat 26 Feb 2011 1:58 pm
Weather Station: Fine Offset 1080/1 & 3080
Operating System: Windows XP SP3
Location: SE London

Re: Data

Post by AllyCat »

Hi Eddie,

No the logger memory NEVER "fills", it just over-writes the oldest data entries (i.e it "wraps around"). Cumulus is clever enough to read backwards through all the logger entries until it finds the last time that data was downloaded.

So you should only ever "lose" any data if you don't connect the logger and run Cumulus for a period longer than the TOTAL logger memory (i.e. more than 2 weeks - 3 months, depending on the logging interval).

Cheers, Alan.
ebbsi
Posts: 16
Joined: Sun 04 Sep 2011 12:50 pm
Weather Station: wh1081
Operating System: windows xp
Location: uk

Re: Data

Post by ebbsi »

Got it thanks
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