Getting meter real time data in a web services call
sdg.marinusvz
2013-07-03 20:37
Hi Marinus
Just want to confirm that currently your system cant give us the data in a structured format from a web services call. But you will change the system so that the realtime data can be access by our system through a web services call and the result will be (structured) XML data that we can import into our system / database and use as we please.
Let me know if my understanding is correct.
thanks
sdg.marinusvz
2013-07-03 20:38
Try:
https://www.pnpscada.com/realtime.jsp?snumber=351458501425&key1=351458501425&LOGIN=xxx&PWD=xxx
(with LOGIN and PWD filled in correctly)
That should give you what you require:
e.g.
sdg.marinusvz
2013-07-03 20:39
E1 and E2 are Active Energy Totals: import and export (forwards and reverse)
So, your normal kWh reading on a meter is equivalent to E1.
F1-F4 are Reactive Energy for the 4 Quadrants. Normal forward lagging reactive energy is F1. Forward leading reactive energy would be F4. It is measured in kvarh. These are also totals.
You won't use the above for the calculation of kVA. You'll use the phasor values.
The rest are phasor values:
V is voltage, 1-3 are red, white, blue.
I is current, 1-3 are red, white, blue.
Each of the above has an angle, which is typically between 0-360 degrees.
The way to calculate the kVA from the above is beyond the scope of this email? You should be able to pick it up on wikipedia or an electricity handbook, perhaps from en electrical engineer or technician?