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Feb 24, 2016
Icon_missing_medium ccclapp 8 posts

Topic: Getting Started / Sending Z-Wave Energy (kwh) Data to SEG from an ISY Controller

Thanks for another reply, Sam.

I'd think being able to tie to Total kWh (etc) by Date/Time is the cleanest of all solutions, but appriciate there may be more under the hood, making this not simple to implement.

At this time, here is my plan to send from ISY: (note I send all circuits from GEM/DASH and plugs, and other things from ISY (see below).

- P (W): send every 3-15 minutes depending on device.  It's not worth the ISY resource

overhead to get finer granularity (and I have perfect 20 sec data on circuits directly on GEM or current status on ISY)

- E (Wh): send every hour.  THis seems like a good balance between frequency and resources.  It also makes the Wh calc very easy.  If a transmission is missed, I have 23 more for eash day.  Looking at Wh with > 1hr granularity is pointless, look at P (W) instead.

Sound reasonable to you?

[Note: I send to SEG from GEM/Dash 32 circuits + V + T.  From ISY I send "smart plug" etc data.  For me having the plug data is critical as a few of my circuits feed most of what I want to track, e.g IT, AV, Mechanical.  The combo is perfect.  Also, as you likely know, many other streams could be sent from ISY to SEG, e.g plotting lock opening, motion-detector activity, home/away graphing, etc, etc, etc. Withe the two one could chart energy while home vs while away; irrigation duration vs water usage vs temp, etc.  ISY variables allow some math so the streams are basically up to the imagination. 

 
Feb 24, 2016
Samotage_300_medium samotage 555 posts

Topic: Getting Started / Sending Z-Wave Energy (kwh) Data to SEG from an ISY Controller

Right now, SEG can't, and you have a point.

SEGmeter is designed to continually calculate the interval energy consumption, and will store this up if the internet fails and forward when it returns.

In practice, there is minimal systematic error in this approach and it works very well.

I've been thinking about this, and may do an enhancement to deal with this situation.

Sam, @samotage

 
Feb 24, 2016
Icon_missing_medium ccclapp 8 posts

Topic: Getting Started / Sending Z-Wave Energy (kwh) Data to SEG from an ISY Controller

Sam: I 've on looked on SEG at the E data points sent from GEM/Dash and from ISY.  I've thought about your comment, below.  My question is:

As you state, sending incremental data points means: the total is made from the sum of the parts, which is very susceptible to errors.  For this exact reason, isn't it actually better/error-free to send cumulative data points along with time-stamp (As ISY does). This way:  the total always reconciles to date/time.  In other words, by always sending Total kWh to -date, it never matters if transmissions are lost because actual total is always correct (intermediate intervals might be off, but that's much less inmportant).

samatage said:

"...ound issues, converting W in to Wh as this is dependent on a time period data points and the device can go offline, causing havoc in the calculations!"

For subtractive processing, there are other problems as well."

Am I worong about this?

Can SEG receive data this way?

THanks!!

 

 
Feb 19, 2016
Icon_missing_medium ccclapp 8 posts

Topic: Getting Started / Sending Z-Wave Energy (kwh) Data to SEG from an ISY Controller

Hi Sam

 

THanks so much for your speedy reply!

If I understand correctly, you are saying

 

1) It is NOT feasible to send a duplicate P (w) transmission, even coded with an E, because the strnsmission interval would not be precise.  For the sake of discussion, assuming reliable transmission, what interval or calibration formula would one use?  

2) Sending E (kwh) data isnt viable, because SEG needs to receive "delta" (change) in kwh, not totak kwh. Is that the point?

 

I am not sure if the ISY controller can readilly do calculations to obtain change-in-kwh data for transmission.

Doesn't this issue come up frequently?  Would it be hard to implement a subtractive calculation in SEG?  I imagine so, or your would have done it.

Any more guidance you can suggest?  I have 6500 views on my thread in the ISY forums on my effort to send smart plug date to SEG.

Here is the recent post where I repoer SUCCESS...almost, but for this issue...

http://forum.universal-devices.com/topic/12682-...

 

Thanks!!

 

 

 
Feb 19, 2016
Samotage_300_medium samotage 555 posts

Topic: Getting Started / Sending Z-Wave Energy (kwh) Data to SEG from an ISY Controller

Hi,

There is no specific setting in SEG for this.  Both kinds of functionality were prototyped a long time ago, and found to have issues, particuarly converting W in to Wh as this is dependent on a time period - for which this is not reliably known between data points and the device can go offline, causing havoc in the calculations!

For subtractive processing, there are other problems as well.

The best advice is to calculate the subtraction on site before sending this data to SEG, that way you are in control of the subtraction processing and getting this right.

Hope this helps!

Sam, @samotage

 
Feb 19, 2016
Icon_missing_medium ccclapp 8 posts

Topic: Getting Started / Sending Z-Wave Energy (kwh) Data to SEG from an ISY Controller

I am sending zwave "smart plug" and other energy reporting device info to SEG from an ISY home automation controller.  The zwave devices report current power (watts) and energy (kWh).  I belive the kwh is repported as total to date, meaning it is always a big number, vs the small incremental delta.

My question is: how to deal with this for SEG.  I would think there are two basic options:

1) use SEG settings to deal with the repettive total kwh being sent (but how and what settings?)

2) Only send current W data and have SEG translate into kwh data.  This could be via a single stream or by sending a duplicate stream of the W data with an E in the transmission packet.  Again there would be SEG configuration settings I dont fully understand.

Any advice would be greatly appriciated.  I have asked this in a thread kwh from a GEM, but it may not be relevent to that thread, so I am starting this specific thread.

 

THanks!!!!!!!

 

Thanks! 

 
Jan 20, 2016
Samotage_300_medium samotage 555 posts

Topic: Getting Started / Making Dashboard Tabs Public?

The donut chart is a good one for that, plus combine with a breakdown for the relevant streams to get a percentage of each.

Sam, @samotage

 
Jan 20, 2016
Icon_missing_medium RustyAmps 9 posts

Topic: Getting Started / Making Dashboard Tabs Public?

Cool - that works.

I needed something immediate so a colleague could work out how to split up the power bill, so I made a new group with just the tab that was needed.

 
Jan 20, 2016
Samotage_300_medium samotage 555 posts

Topic: Getting Started / Making Dashboard Tabs Public?

Should be all better now!

Let me know how you get on :)

Sam, @samotage

 

 
Jan 19, 2016
Icon_missing_medium RustyAmps 9 posts

Topic: Getting Started / Making Dashboard Tabs Public?

This still seems to be broken, and is proving to be a bit of a pain.

 
Jan 14, 2016
Samotage_300_medium samotage 555 posts

Topic: Comments and Suggestions / New Features!

Hey All,

Just added a new wizard like thing to make easier calculated streams!

Check it out at:

https://smartenergygroups.com/calculated_streams

Then click the Add Calculated stream

Have fun!

Sam, @samotage

 
Jan 12, 2016
Samotage_300_medium samotage 555 posts

Topic: Getting Started / Making Dashboard Tabs Public?

That sounds like some kind of bug...

If the group is public there should be no problems!

I tested and it works logged in, and as you say when not.

Will look at this tomorrow and fix.  I will post back when done!

Thanks,

Sam, @samotage

 
Jan 12, 2016
Icon_missing_medium RustyAmps 9 posts

Topic: Getting Started / Making Dashboard Tabs Public?

So I have a public dashboard here:

https://smartenergygroups.com/groups/wineyard

But only the first tab seems available to the public, the other two require you to log in. I've trawled through all the settigns I can find, but nothing seems to indicate how you control this.

Any suggestions?

 
Jan 11, 2016
Icon_missing_medium JessicaTreibel 1 post

Topic: Smart Energy - In the home / Increase the consumption from your own photovoltaic plant

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Jan 10, 2016
Samotage_300_medium samotage 555 posts

Topic: Getting Started / GST for out of country accounts

Hi,

I don't think you were denied acces to your account, I have checked and it seems all good.

This issue has been addressed, and your invoices have been re-generated.

Thanks,

Sam.

 
Jan 1, 2016
House2_medium kbtstone 18 posts

Topic: Getting Started / Something is amiss

Everything seems to be ok again, but some data is missing. Perhaps it will fill in.

 
Jan 1, 2016
House2_medium kbtstone 18 posts

Topic: Getting Started / Something is amiss

Did SEG go down around 7 pm EST?

I can't find anything wrong at my end and the API trace was showing seg internal errors.

 
Dec 5, 2015
Samotage_300_medium samotage 555 posts

Topic: SEGmeter / What Data Type?

No reason, I changed the flow rate to L/min.  Makes sense.

You have values of 80 or so coming in?  Send the raw values as 80,000 and you should have win.  You could also set up a 1000 multiplier on the calibration and do a re-calibration of the stream.  That will fix it easy on the SEG side.

Sam, @samotage

 
Dec 4, 2015
Icon_missing_medium RustyAmps 9 posts

Topic: SEGmeter / What Data Type?

Also, chaning my moisture data type from hPa to kPa seems to have broken the graphs - the real time is now a flat line, and the bunch of days won't work at all.

https://smartenergygroups.com/groups/wineyard/dashboards/1639_moisture_sensing?range=0_d

 

 
Dec 4, 2015
Icon_missing_medium RustyAmps 9 posts

Topic: SEGmeter / What Data Type?

Thanks for that. Any particular reason for litres per second rather than per mintue?

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