We are going to make small applets and also REST APIs to query specific things.
As an example you can go to http://www.dataservices.solar/SolarWeb/SolarTest.aspx to query any Inverter or Gateway.
Just enter your Gateway or Inverter Serial in HEX or LONG and press the button.
how to get the serial of the gateway?
Please have a look at the following FAQ:
http://www.dataservices.solar/?faq=how-do-i-get-the-serialnumber-of-my-enecsys-gateway