Schweitzer Engineering Laboratories SEL-2890, Instruction Manual

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SEL-2890 Instruction Manual Date Code 20210715
HTML Code C.6
MAXLENGTH determines the maximum length of the value of a NAME-VALUE pair
sent to the web server. The relay.cgi program is designed to use NAME-VALUE pairs
in the form of command-[VALUE] where [VALUE] is entered in the text box by the
user. The HTML code in
Figure C.2 fills in the text box with a default value of
METER. When a NAME-VALUE pair is submitted, the SEL-2890 HTTP server may
return data to the client. These data will appear in the HTTP form designated by the
TARGET option. The BASE TARGET=_blank option shown in
Figure C.2 specifies
that the target location be a new, blank window.
Application Programs
The SEL-2890 allows two different application programs to be downloaded. File
names for the programs are app1.zip and app2.zip. Use of the file structure and
associated file names is required. However, it is possible to download a Java applet or
other file into any file (i.e., image1.gif). Care must be taken when doing this. The
browser must be able to recognize the file by header information rather than by file
name. Therefore, if you want to download more than two application files to the
SEL-2890 extension, you will have to save the files as something other than app1.zip or
app2.zip.
Review the web files located under the SEL folder with Microsoft
®
Notepad or other
web authoring software. This will provide a better understanding of how the SEL-2890
web server works.
The web setting option, SEL, enables the default HTTP that ships with the transceiver
and is designed to work on an SEL relay.