Before going to the trouble of installing the app, I want to make sure it will give me what I need: I want to be able to track cumulative power generated as a function of time. Does the app do this?
Quote from: leeelson on May 20, 2014, 05:05:02 PM
Before going to the trouble of installing the app, I want to make sure it will give me what I need: I want to be able to track cumulative power generated as a function of time. Does the app do this?
Only if the App is connected and running will it record kWh generated for a day every couple seconds. It resets to zero every day at 23:59.
The Offline data only stores the highest kW for the day and will store 380 days without the app running or connected.
Example of LA data while app is connected and running.
Quote from: Resthome on May 20, 2014, 05:20:24 PM
Only if the App is connected and running will it record kWh generated for a day every couple seconds. It resets to zero every day at 23:59.
The Offline data only stores the highest kW for the day and will store 380 days without the app running or connected.
Example of LA data while app is connected and running.
Actually, what I'm looking for is cumulative power over days, e.g. power generated over a month found by subtracting cumulative power at the beginning of the month from that at the end. It seems like the Classic stores enough data (daily power generation) to make this possible. Its a question of whether the local app computes this.
The web blurb suggests it will do this:
"Plots up to 12 values from the classic : Battery Voltage, kWh, Total kWh, FET Temperature, Input Voltage, Watts, Total Amp Hours, PCB Temp, Battery Current, Input Current, Battery Temp, Charge Stage."
Does "Plots" mean Total kWh versus time in days?
Quote from: leeelson on May 20, 2014, 05:56:22 PM
Quote from: Resthome on May 20, 2014, 05:20:24 PM
Only if the App is connected and running will it record kWh generated for a day every couple seconds. It resets to zero every day at 23:59.
The Offline data only stores the highest kW for the day and will store 380 days without the app running or connected.
Example of LA data while app is connected and running.
Actually, what I'm looking for is cumulative power over days, e.g. power generated over a month found by subtracting cumulative power at the beginning of the month from that at the end. It seems like the Classic stores enough data (daily power generation) to make this possible. Its a question of whether the local app computes this.
The web blurb suggests it will do this:
"Plots up to 12 values from the classic : Battery Voltage, kWh, Total kWh, FET Temperature, Input Voltage, Watts, Total Amp Hours, PCB Temp, Battery Current, Input Current, Battery Temp, Charge Stage."
Does "Plots" mean Total kWh versus time in days?
You can get a graph displayed in the LA (ie Plot), but the data is daily. You can get weekly and monthly graphs but the kWh resets to zero every night. You get the total kWh for one day. If you want it cumulative over a month you would have to do that calculation yourself.
Quote from: Resthome on May 20, 2014, 06:22:42 PM
You can get a graph displayed in the LA (ie Plot), but the data is daily. You can get weekly and monthly graphs but the kWh resets to zero every night. You get the total kWh for one day. If you want it cumulative over a month you would have to do that calculation yourself.
Does the LA have an export capability, such as .csv files?
The Local App has an Offline Data tab and this will download from the Classic several data points. One of these is KWHs per day and then you can export that as a csv file
Ryan
Quote from: leeelson on May 20, 2014, 06:37:43 PM
Quote from: Resthome on May 20, 2014, 06:22:42 PM
You can get a graph displayed in the LA (ie Plot), but the data is daily. You can get weekly and monthly graphs but the kWh resets to zero every night. You get the total kWh for one day. If you want it cumulative over a month you would have to do that calculation yourself.
Does the LA have an export capability, such as .csv files?
Yes there is an export function, that is how I created the excel file. It has an error in the date/time conversion formula that is easy to fix . It's off by one cell.
Quote from: Halfcrazy on May 20, 2014, 07:12:53 PM
The Local App has an Offline Data tab and this will download from the Classic several data points. One of these is KWHs per day and then you can export that as a csv file
Ryan
Ryan is correct after looking at the Offline data export again it does have kWh totals for each day that export to a csv file. You could the just added that column up for a month.