Welcome to the Cumulus Support forum.

Latest Cumulus MX V4 release 4.4.2 (build 4085) - 12 March 2025

Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024

Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)

Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki

If you are posting a new Topic about an error or if you need help PLEASE read this first viewtopic.php?p=164080#p164080

Search found 373 matches

by DaveNZ
Fri 11 Dec 2009 7:22 pm
Forum: Davis VP/VP2/Vue
Topic: Temp/Dewpoint Graph
Replies: 3
Views: 2909

Re: Temp/Dewpoint Graph

steve wrote: I suggest you change to get Cumulus to calculate the dew point and see how that goes.
Alright will do so.
by DaveNZ
Fri 11 Dec 2009 10:14 am
Forum: Davis VP/VP2/Vue
Topic: Temp/Dewpoint Graph
Replies: 3
Views: 2909

Temp/Dewpoint Graph

Hi Steve Sad to say I have got another issue here :( The temperature and dewpoint graph here http://howickweather.orgfree.com/weather/trends.htm Cumulus is mucking up the DP's reported by my VP2 after about 5pm, the dewpoint line should not have dipped down to 14 at all (the dips in the DP line do n...
by DaveNZ
Fri 11 Dec 2009 9:47 am
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

steve wrote: I have no idea why it sends 'error' for 'calm' (or why it doesn't do the same when live) but the fact is that it does, and I'll have to work around it.
Ok cheers hope you can get around it as the wind often drops to calm here in the middle of the night. Good luck :)
by DaveNZ
Fri 11 Dec 2009 1:35 am
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

It accepts the 0 values while the data is feeding to cumulus live from the station. I have attached a small graph from a period overnight, notice the lines drop to zero before 11pm (I closed cumulus around 11.20pm). Seems that once the program is closed, after the next non-zero speed on the logger a...
by DaveNZ
Thu 10 Dec 2009 10:25 pm
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

Yes there's definitely been periods of calm overnight - currently got a nice high pressure system to thank for that. Not many periods of zero wind during the day since I'm only about 2km from coastline ;)
by DaveNZ
Thu 10 Dec 2009 8:15 pm
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

Here's the file in diags after it got the overnight data this morning around 9am (it drew the graphs strange again).
cumulus.008
by DaveNZ
Thu 10 Dec 2009 9:52 am
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

The earliest back-up log was at 12:48pm today, well after the overnight data was already downloaded.
I can attach something here for you tomorrow, when I download the night's data using the new Cumulus version you have supplied me.
by DaveNZ
Thu 10 Dec 2009 8:24 am
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

I just reset the graphs to 24 hours on my page here so you can see it: http://howickweather.orgfree.com/weather/trends.htm Here's the data for the period concerned last night (just copied from Dec09 log). cumulus10declog.txt Regarding the windchill - that anomaly occurred when I had "calculate ...
by DaveNZ
Wed 09 Dec 2009 7:47 pm
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

Hi Steve, well this morning it has done the same thing again, it doesn't seem to be accepting accept the 0 values from the datalogger. In the weatherlink records, it appears as below. weatherlinklog.PNG Also I found out why the temperature scale has dipped to -2 - cumulus seems to be doing something...
by DaveNZ
Wed 09 Dec 2009 10:15 am
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

Ok thanks. Well it's 11.15pm 9 Dec here and currently completely calm - will switch computer off soon and see if I get similar results again tomorrow morning. 1 other thing I just noticed is that for some reason cumulus has recently changed the lowest value on the scale of my temp/dewpoint graph to ...
by DaveNZ
Wed 09 Dec 2009 9:57 am
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

In weatherlink it's showing up as calm (in the records and the graphs):
by DaveNZ
Wed 09 Dec 2009 8:48 am
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Re: Problem with windspeed graph

Just last night so far as I only set it up yesterday. I took a screenshot of it which I will attach. And yes I did read the long thread you are referring to and so I know all about the wind speed discrepancies when Cumulus is closed and then restarted if "10 min average" is selected :) But...
by DaveNZ
Tue 08 Dec 2009 8:05 pm
Forum: Davis VP/VP2/Vue
Topic: Problem with windspeed graph
Replies: 40
Views: 13038

Problem with windspeed graph

Hi, I have just used cumulus to set up a site for my weather data here: http://howickweather.orgfree.com/weather/trends.htm I turn my computer off at night while I sleep since it's rather noisy, and cumulus just downloads all the data from the station datalogger the next morning. When I looked at my...