Extron Electronics IPL 250 Reference Manual - Manual (Page 83)

5-3 IPL 250 • Special Applications
SSI command types and syntax
Host vs. remote commands
SIS commands for IPLs and other IP Link-enabled devices fall into two categories:
host or remote.
• Host commands instruct the IPL 250, itself, to act or respond.
• Remote commands send data to an external control port on the IPL 250.
Command syntax
Basic syntax for server side includes is as follows:
<!--#directive parameter=x parameter=x --> where
• “directive” is an instruction to the server such as include file (to include/
insert the content of one document into another file) or echo var (to display
a particular HTTP variable)
• the variable ( x) is one or more SIS commands enclosed in quotation marks
(“x“)
For IP Link-enabled devices including the IPL 250, see the following examples of
the basic SSI command format.
Server Side Include (SSI) Syntax for a Host SIS Command
<!--#echo var=" "-->
<!--#echo var="N"--> <!--#echo var="3I"-->
<!--#echo var="W CT |"-->
SIS command to be
executed by the IPL
(must be typed without spaces)
Request unit’s part number. Request system
memory usage.
View date
and time.
W is the Web-encoded
substitute for the
E key.
Examples:
Quotation marks are delimiters.
The results of the echo
command are displayed in
the IPL’s Web page(s) or
in the event-triggered
e-mail.
HTML echo
command
N Do not use spaces between SIS commands. Do use Web encoding. See
“Entering SIS commands: helpful tips “ in chapter 4 for details about how to
encode SIS commands for Web use.