HTTP Server

The Ewon gateway can act as an HTTP server. Most commonly, the HTTP clients connecting to the Ewon web server are web browser requesting for the Ewon gateway's web pages.

However, other applications that support HTTP requests can also retrieve data from the Ewon gateway's HTTP server.

By knowing the appropriate URI, you can request any Export Block Descriptor: the source URI for this type of export is /rcgi.bin/ParamForm?AST_Param=XXXXXXXX where XXXXXXXX is a properly formatted Export Block Descriptor.

For example: /rcgi.bin/ParamForm?AST_Param=$dtIV$ftT would be used to retrieve the current values of all the Ewon gateway tags.

You can use user files - $dtUF - with Server Side Includes to export data in a format not natively supported by the Ewon gateway such as XML or JSON.
More info about this in the Report section.

For more information about export block descriptors see the proper section.

For more information about the URIs, how to retrieve information from an Ewon gateway and to send commands to an Ewon gateway, see the Web Reference Guide.