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”isaninstructiontotheserversuchasinclude file (to include/
insert the content of one document into another file) or echo var (to display
a particular HTTP variable)
•thevariable(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.