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Weather Display => WD Questions => Topic started by: Weerstation on April 08, 2018, 11:15:07 AM

Title: Solar Current % reading says Nan%
Post by: Weerstation on April 08, 2018, 11:15:07 AM
Sunrise 07:02
Latests WD 10.37S69

(http://www.westland-depoel.nl/solarnan2.jpg)

I noticed that since March 25, my solar current % reading is displaying Nan% for about 60 to 90 minutes from Sunrise on.
Then suddenly the solar value jumps fast to a higher value from 0.
It is not gradually fading in.
Here is from my April vantagelog file.

1  4 2018  8 27 0.00 0.0 0.0 255.0 100.000
1  4 2018  8 28 9.62 0.0 0.0 255.0 100.000

2  4 2018  8 25 0.00 0.0 0.0 255.0 100.000
2  4 2018  8 26 48.94 0.0 0.0 255.0 100.000

3  4 2018  8 22 0.00 0.0 0.5 255.0 100.000
3  4 2018  8 23 42.77 0.0 0.5 255.0 100.000

4  4 2018  8 20 0.00 0.0 0.0 255.0 100.000
4  4 2018  8 21 85.93 0.0 0.0 255.0 100.000

5  4 2018  8 18 0.00 0.0 0.0 255.0 100.000
5  4 2018  8 19 25.51 0.0 0.0 255.0 100.000

6  4 2018  8 15 0.00 0.0 0.0 255.0 100.000
6  4 2018  8 16 178.05 0.0 0.0 255.0 100.000

7  4 2018  8 13 0.00 0.0 0.0 255.0 100.000
7  4 2018  8 14 110.88 0.0 0.0 255.0 100.000

8  4 2018  8 11 0.00 0.0 0.0 255.0 100.000
8  4 2018  8 12 41.77 0.0 0.0 255.0 100.000

Graphs for solar March 25 and 26

(http://www.westland-depoel.nl/vantagevue/ws/24uurgif/20180325.gif)

(http://www.westland-depoel.nl/vantagevue/ws/24uurgif/20180326.gif)

What could be causing this Nan%.
The solar sensor does output 13.4 mV
Title: Re: Solar Current % reading says Nan%
Post by: niko on April 08, 2018, 01:37:37 PM
Try setting the latitude and longitude to the correct values for your location.
Title: Re: Solar Current % reading says Nan%
Post by: Weerstation on April 08, 2018, 02:38:11 PM
These are correct.
Title: Re: Solar Current % reading says Nan%
Post by: niko on April 08, 2018, 02:47:06 PM
Really, you've moved to latitude 1 minute North = the equator?
Title: Re: Solar Current % reading says Nan%
Post by: Weather Display on April 08, 2018, 08:17:54 PM
your screen shot shows no value for the degrees.only values for the minutes?
Title: Re: Solar Current % reading says Nan%
Post by: Weerstation on April 08, 2018, 09:42:39 PM
My settings for longitude and latitude are correct.
They have been for the past 7 years.
Title: Re: Solar Current % reading says Nan%
Post by: Weather Display on April 08, 2018, 10:11:59 PM
they are not correct according to the screen shot
Title: Re: Solar Current % reading says Nan%
Post by: Martyn on April 08, 2018, 10:14:52 PM
Probably photoshopped out by the OP to avoid giving away his location?
Title: Re: Solar Current % reading says Nan%
Post by: Weather Display on April 08, 2018, 11:03:19 PM
goodness me
does make it hard to help then

maybe he has ticked to use high latitude in the sun moon rise/setup?
Title: Re: Solar Current % reading says Nan%
Post by: Weerstation on April 09, 2018, 10:37:49 AM


maybe he has ticked to use high latitude in the sun moon rise/setup?

he has not ticked to use high latitude in the sun moon rise/setup
Title: Re: Solar Current % reading says Nan%
Post by: Martyn on April 09, 2018, 10:44:13 AM
Hi,
If you have not changed anything or updated WD on March 25 the only other thing it may possibly be related to is the clocks going forward to daylight savings time on that date.
Title: Re: Solar Current % reading says Nan%
Post by: Weerstation on April 09, 2018, 03:59:13 PM
Thanks for replying, Martyn.
You might be right about March 25 and Daylight Saving.
I did edit settings.
I had asked about it in another thread.
I may have misunderstood or the info was incorrect, I don't know.

I usually am on GMT+1 and I am east of gmt.(negativ)
At the timezone I have -1.

With Daylight Saving I am on gmt+2
At the timezone I have -2.

These settings may be causing the problem.(See image)
I have "Daylight Saving in use (does auto set) ticked.
Does this mean I don't have to add another hour to the timezone, it stays -1,
with the setting "Do not auto set time zone" ticked.
Title: Re: Solar Current % reading says Nan%
Post by: Martyn on April 09, 2018, 04:12:26 PM

Does this mean I don't have to add another hour to the timezone, it stays -1,
with the setting "Do not auto set time zone" ticked.

That box has always been ticked in my setup and I never manually change the hour in the timezone box, but I don't know how it works for timezones away from GMT (0).
Title: Re: Solar Current % reading says Nan%
Post by: Weather Display on April 09, 2018, 08:37:00 PM
@Weerstation
what weather station type?
and what type of solar sensor?

also do you actually see the word Nan?
Title: Re: Solar Current % reading says Nan%
Post by: Weerstation on April 10, 2018, 05:02:45 AM
Davis Vantage Vue
Hobbyboards
(http://www.westland-depoel.nl/vantagevue/ws/images/hobbyboardssolar1.jpg)

Yes
Title: Re: Solar Current % reading says Nan%
Post by: Weather Display on April 10, 2018, 09:41:41 AM
ah
you are using 1 wire solar then?

not sure where the word nan is coming from
Title: Re: Solar Current % reading says Nan%
Post by: Martyn on April 10, 2018, 10:07:12 AM
Usually means "not a number" - maybe due to division by zero?
Title: Re: Solar Current % reading says Nan%
Post by: Weather Display on April 11, 2018, 05:09:51 AM
how often is the nan value showing up, and when?
Title: Re: Solar Current % reading says Nan%
Post by: niko on April 11, 2018, 03:47:04 PM
That box has always been ticked in my setup and I never manually change the hour in the timezone box, but I don't know how it works for timezones away from GMT (0).

The timezone doesn't change, daylight saving is an adjustment to that value.
Title: Re: Solar Current % reading says Nan%
Post by: Weerstation on April 11, 2018, 04:03:33 PM
The setting Do not auto set timezone is ticked.
Will it then still add an hour to the timezone, making it -2.
Title: Re: Solar Current % reading says Nan%
Post by: niko on April 11, 2018, 04:23:52 PM
Yes, that's how it should work.

Auto setting the timezone would mean WD gets the timezone from the OS, not use the value entered in the box. Daylight saving is an adjustment, not a change of timezone.

My timezone is "(UTC-08:00) Pacific Time (US & Canada)", that doesn't change, but since we are in daylight saving the actual adjustment today is -7.

Title: Re: Solar Current % reading says Nan%
Post by: Weerstation on April 11, 2018, 05:18:49 PM
Ok
I am on gmt+1
East of gmt

So I should enter -1 in the box, not -2
Title: Re: Solar Current % reading says Nan%
Post by: niko on April 11, 2018, 05:22:48 PM
Yes.
Title: Re: Solar Current % reading says Nan%
Post by: niko on April 11, 2018, 05:25:22 PM
If making that change doesn't resolve the issue you should check that your PC time zone and daylight saving settings are correct.
Title: Re: Solar Current % reading says Nan%
Post by: Weather Display on April 11, 2018, 06:05:33 PM
'The computer says No"
Title: Re: Solar Current % reading says Nan%
Post by: niko on April 11, 2018, 06:33:55 PM
No what?
Title: Re: Solar Current % reading says Nan%
Post by: Weather Display on April 11, 2018, 07:16:23 PM
you might have missed the skit by "Little Britain" then
Title: Re: Solar Current % reading says Nan%
Post by: niko on April 11, 2018, 07:29:43 PM
Had to google that, we don't get it here  :(
Title: Re: Solar Current % reading says Nan%
Post by: Weather Display on April 11, 2018, 07:44:26 PM
https://www.youtube.com/watch?v=AJQ3TM-p2QI