Extron Electronics MLC 104 Plus Series - Manual (Page 68)

SIS ™ Programming and Control, cont’d
MLC 104 Plus Series • SIS Programming and Control 4-4
PRELIMINAR
Y
Commands and Reponses
Using the command/response tables
The MLC can be controlled via either a Telnet (port 23, IP models only) or RS-232
connection using ASCII commands. IP models can also 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 4-8 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.
N The non‑IP model
(MLC 104 Plus)
does not support
Telnet or Web
access.
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’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
field unless otherwise specified.
• 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 prefix 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]
N With Telnet you can use either an “Escape” ( E ) command or a “W”
command, and the carriage return or the pipe character. With the Web
browser, you are required to use a “W” command and the pipe character.
ASCII to Hex Conversion Table
•
Space
ASCII to Hex conversion table