Extron electronics MLC 226 IP Series, Руководство по установке

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SIS
™
Programming and Control, cont’d
MLC 226 IP Series • SIS Programming and Control
5-4
PRELIMINAR
Y
Commands and Responses
Using the command/response tables
The MLC 226 IP can be controlled via either a Telnet (port 23) or RS-232 connection
using ASCII commands. Or it can be controlled via a Web browser (port 80)
connection using URL-encoded commands. The ASCII and URL commands listed
in the tables starting on page 5-8 perform the same functions, but they are encoded
differently to accommodate the requirements of each port (Telnet or browser).
The ASCII to hexadecimal
(HEX) conversion table shown
at right is for use with the
command/response tables.
The command/response tables list valid ASCII (for Telnet or RS-232) command
codes, the corresponding URL (uniform resource locator) encoded (for Web
browsers) command codes, the MLC 226 IP’s responses to the host, and a
description of the command’s function or the results of executing the command.
• Upper and lower case characters may be used interchangeably in the command
fi eld unless otherwise specifi ed.
• Commands may be sent back-to-back without spaces (for example, 2!65V1Z).
• Numbers can be entered as 1, 2, or 3 digits, e.g., 8V = 08V = 008V.
• There are a few differences in how to enter the commands depending on whether
you are using Telnet or a Web browser.
• When using these commands through a Web browser, the URL reference
is used to shorten the examples. “URL” refers to the full URL of the
control interface and Web page reference including all path information
(e.g.,
http://192.168.100.10/myform.htm ).
• To send any of the commands using a Web browser you must prefi x them
with the full URL followed by
?cmd= .
•
For control via a Web browser, all
non-alphanumeric characters
must be
represented as the hexadecimal equivalent, %xx, where xx represents the
two-character hex byte. A comma (
, ), for example, would be represented
as %2C .
Characters such as % , + , and the space character ( ) must be encoded as
hex bytes, or they will be misinterpreted by the MLC. For example, the
ASCII command
+V must be encoded as %2BV for Web browser use.
• Some characters differ depending on the method you use to send the
commands:
Telnet Web browser
Escape (hex 1B) W [must not be hex encoded]
Carriage return (hex 0D) Pipe character (
|
) [must not be hex encoded]
A S CII to Hex Conversion Table
•
ASCII to Hex conversion table