SMA Sunny Data Control V.5.0 - Manual (Page 114)

Transferring Data to the Internet SMA Technologie AG
116 SDC-TEN081450 Technical Description
12. 8 The Java Applet
The Java applet is responsible for the actual graphic presentation of the PV plant on the web pages.
Applets run on the web clients in the Internet, i.e. on the Internet surfers' computers.
An HTML page can contain one or more applets, as desired. However, the number per page should
be kept as low as possible, as each applet establishes its own TCP connection to the web server, or
to the SDC agent.
There are several different display types for the PV plants' measured values. In order to keep the
number of required TCP connections as low as possible, one applet can show several display types
simultaneously.
The configuration of applets occurs by means of applet parameters which are transferred to the
applet in the HTML code of the respective page.
Integration
Integration of the applet into the HTML document takes place by means of the APPLET tag. At the
desired location in the HTML page, the applet is introduced by the code word "“, and
closed with "“.
ARCHIVE = "SunnyViewer.jar“
CODEBASE = ".“
CODE = "de.sma.SunnyViewer.SunnyApplet.class“
WIDTH = 900
HEIGHT = 400>
. . .
The parameter "ARCHIVE" describes the file (Java archive) which contains the applet. Here, please
type "SunnyViewer.jar". "CODEBASE“ stipulates the directory in which the Java archive resides. A
"." (period) indicates that the archive is situated in the same directory as the HTML page.
The amount of space which the applet occupies on the page is specified by "WIDTH" and "HEIGHT"
(given in pixels). The actual applet for execution is specified by the "CODE" parameter, and should
always be "de.sma.SunnyViewer.SunnyApplet.class“ (case-sensitive!).
In the sequence between "“ and "“, a series of PARAM tags are passed to the
applet as parameters. These parameters are used for the actual configuration of the applet. The
commands have the following syntax:
...
The quotation marks are only necessary if the parameter value contains empty spaces. Four different
parameter types are used: