Product manual

A Network Connections Overview TAC Xenta Server – Gateway, Technical Manual
114 (184) Schneider Electric Buildings AB, June 2011
04-00124-06-en
A.3 Application Server Setting – HTTP
HTTP
The Xenta 913 is an HTTP (Hypertext Transfer Protocol) server. Sev-
eral users can view the web pages at the same time, but they are limited
by the number of HTTP sessions allowed.
• Max. simultaneous HTTP sessions, choose a number from the list.
The default setting is 15. Several users can view files at the same
time.
• HTTP port, define a port number. The default setting is 80. When
port 80 for some reason could not be used it is possible to use
another port. Valid values for the HTTP port are 80 and between
1024 and 65535. If the port is changed, the new port must be spec-
ified in the URL. For example, http://172.20.4.74:8080
• HTTPS port, define a port number. The default setting is 443.
Valid values for the HTTPS port are 443 and between 1024 and
65535.
What is an HTTP Session?
Your web browser is an HTTP client, sending requests to the Xenta 913.
The HTTP server in the Xenta 913 receives the request and, following
any necessary processing, the requested file is returned. An HTTP ses-
sion is the connection that exists during data communication between
the web browser and the Xenta 913. The session ends when all the data
has been received.
Rules of Thumb
Each web page of the status viewer, the alarm viewer and the graphics
viewer, sets up a full HTTP session.
When loading a web page, a number of sessions may be used simulta-
neously, depending on the number of sessions available.