Error Response References; Command And Responses; Using The Command And Response Tables - Extron electronics DVS 304 Series User Manual

Error Response References

Command and Responses

Using the Command and Response Tables

The following are either Telnet (port 23) or Web browser (port 80) commands. There are
some minor differences when you are 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 tables show proper implementation in a Telnet or Web browser session.
NOTE: Web browsers: all non-alphanumeric characters must be represented as their
Telnet
Escape (Hex 1B)
Carriage Return (Hex 0D)
When SIS commands are used 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://192.168.254.254/index.html
To send any of the commands using a Web browser you need to prefix them with the full
URL followed by ?cmd= (see the
this chapter).
NOTE: With Telnet you can use either the Escape commands or the W commands,
In either method {Data} = data that is directed to a specified port and must be encoded if
non-alphanumeric.
The Command and Response table for SIS commands later in this chapter lists the
commands that the DVS 304 scaler recognizes as valid, the responses that are returned
to the host, a description of the function or the results of executing the command, and an
example of each command in ASCII (Telnet) and URL Encoded (Web).
NOTE: Upper and lower case text can be used interchangeably except where noted.
= Commands that give an E14 (invalid command for this configuration) error if sent
14
to a product whose current configuration does not support the command
= Commands that give an E24 (privilege violation) error if not administrator level
24
= Commands that may give an E27 (invalid event number) error
27
= Commands that may give an E28 (file not found) error
28
hex equivalent, such as %xx where xx equals the two character representation of
the hex byte that needs to be sent (for example, a comma would be represented as
%2C).
and the carriage return or the pipe (
required to use the W commands and the pipe character.
Web Browser
W [must not be encoded]
Pipe Character ( ) [must not be encoded]
URL Encoding section of the SIS Commands, later in
) character. With the Web browser you are
DVS 304 Series • SIS Communication and Control 32