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Programmer Guide for the Telnet and Web Browser
Using the Command and Response Table
The following are either Telnet (port 23) or web browser (port 80) commands. There
are some minor differences when implementing these commands via Telnet or via URL
encoding using a web browser. All commands listed below will work using either connection
method, but due to some limitations of the web browser, the encapsulation characters are
modified to make sure that the web browser will properly handle them. All examples in the
Command and Response Table for SIS Commands
proper implementation in a Telnet or web browser session.
NOTE: For web browsers, all non-alphanumeric characters must be represented as their
Telnet
Escape (Hex
Carriage Return (Hex
When using these commands through a web browser, the URL reference is used below to
shorten the examples. This would, in practice, be the full URL of the control interface and
web page reference including all path information (for example,
http://192.168.100.10/myform.htm
To send any of the commands using a web browser, you need to prefix them with the full
URL followed by
NOTE: With Telnet you can use either the
In either method {Data} signifies that data will be directed to a specified port and must be
encoded if it is non-alphanumeric.
The
IPL T CR48 recognizes as valid, the responses that are returned to the host, a description of
the function of each command, and the results of executing the command.
NOTE: Upper and lower case text can be used interchangeably except where noted.
Symbol definitions are shown below. An ASCII to HEX conversion table is also provided in
figure 20.
Space
Figure 20.
hex equivalent such as
%xx
hex byte that needs to be sent (for example, a comma would be represented as
)
1B
)
0D
= (see
URL Encoding
?cmd
carriage return or the pipe character. With the web browser, you are required to use the
character and the pipe character.
W
Command and Response Table for SIS Commands
ASCII to Hex Conversion Table
ASCII-to-HEX Conversion Table
starting on page 27 show the
where
equals the two character representation of the
xx
Web Browser
[must not be encoded]
W
Pipe Character ( | ) [must not be encoded]
).
on page 25).
character or the
<Esc>
•
IPL T CR48 • Communication and Control
%2C
character, and the
<W>
lists the commands that the
).
23
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