A Forum run by Enthusiasts of MidNite Solar

MidNite Solar Monitoring software and hardware => Local App software => Topic started by: Westbranch on May 03, 2015, 12:04:35 AM

Title: live data logging
Post by: Westbranch on May 03, 2015, 12:04:35 AM
Is it normal for the LA data to be plotted with a 20 minute delay??
Title: Re: live data logging
Post by: Resthome on May 03, 2015, 10:17:36 AM
Quote from: Westbranch on May 03, 2015, 12:04:35 AM
Is it normal for the LA data to be plotted with a 20 minute delay??

If you look at the 1/2 hour scale it plots in 2 minute increments. If you are using the line graph the line does not plot until it hit the next two minute increment. So it lags for 2 minutes and then at the moment the PC clock hits the next 2 minute increment the LA will refresh and the line will plot. At that point in time the graph is in sync with the clock on my PC then the graph waits for the next 2 minutes of data to be collected. I suspect although I have not verified this that it is only plotting the data points at those 2 minute increments and nothing in between.

If you seeing 20 minutes check to see if you PC and Classic clocks are the same. I know the LA will tell you if they are more than 10 minutes apart.
Title: Re: live data logging
Post by: atop8918 on May 03, 2015, 10:35:15 AM
Yeah, the logging plots corresponding to the scale you are set up to. You won't see 2-second data at any scale: you'll have to export for that, the graph at that size simply does not have enough real-estate to handle it.
Title: Re: live data logging
Post by: Westbranch on May 03, 2015, 12:42:25 PM
Thanks guys, I could see blips when it was 'reading' but there was no new data seen...

I set the ''Nite Auto Rest Enable\'' last night and this morning it is working as  you described...

Last night I looked for a setting that might help. 

The only thing left  to change was ''Reset net Ah on 100% SoC"... which I turned on this morning.  We shall see tomorrow AM
Title: Re: live data logging
Post by: Westbranch on May 04, 2015, 09:14:11 PM
Well the LA did not falter all night, it did though sometime around 7 AM, which is when the panels would have started making a few amps, voltage starts to ramp up at about 6 AM... the previous 2 days it was dropping connections randomly...  ALL DAY! when left on the graphing 'page', in full size mode not reduced.

Here are the details on the inverter, it's an ST 1500 124 , hardwired model, with bypass switch...
http://www.cotek.com.tw/upload/PDF/ST1500.PDF

The data set should have reset total Ah to zero if I did it correctly, so next weekend I will dig into it again...

Great piece of kit if it would just not drop connection...
Title: Re: live data logging
Post by: Resthome on May 05, 2015, 05:26:17 AM
Quote from: Westbranch on May 04, 2015, 09:14:11 PM
Well the LA did not falter all night, it did though sometime around 7 AM, which is when the panels would have started making a few amps, voltage starts to ramp up at about 6 AM... the previous 2 days it was dropping connections randomly...  ALL DAY! when left on the graphing 'page', in full size mode not reduced.


The data set should have reset total Ah to zero if I did it correctly, so next weekend I will dig into it again...

Great piece of kit if it would just not drop connection...

We have been living with the disconnect issue since the beginning. There have been various posts that Midnite was working to get to the bottom of this and that it was a top priority to resolve. That has been a few months ago. So I'm not holding my breath that it will be resolved any time soon. Even boB admits he has a unit in his lab that is connected with Wi-Fi that drop the connections.

Not sure what you mean by "total AH to zero".  Net AH will reset to 0 when the SOC reaches 100%. This usually happens when it goes from absorb to float. The thing I do not like is if you do a manual Equalize it does not reset when it goes to float when the Equalize completes. This results in a large positive accumulated Net AH so during the night when you are drawing down from the batteries it has to work down from this positive Net AH. So you do not have a true picture of what was removed from your batteries during the night if you did a manual equalize during the day.