Extron Electronics IPCP 505 User Guide - Manual (Page 58)

IPCP 505 • SIS Programming and Control 52
The ASCII to hexadecimal (HEX) conversion table shown here is for use with the
command/response tables.
The command/response tables
list valid ASCII command
codes, the corresponding
URL (uniform resource
locator) encoded (for web
browsers) command codes,
the responses of the IPCP to
the host, and a description of the
command’s function or the results
of executing the command.
Entering SIS Commands: Helpful Tips
• 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, for example, 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 (such as
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 IPCP. For example, the ASCII command +V
must be encoded as %2BV for web browser use.
Character Type Examples
Alphanumerics 0-9 a-z A-Z
Special characters $ _ . + ! * ( ) ,
Reserved characters ‘ / ? : @ = &
When used for
their reserved
purposes, these
characters do not
require encoding
within a URL.
Reserved Characters
(for web encoding purposes)
Character Hex Dec
$ dollar 24 36
& ampersand 26 38
+ plus 2B 43
, comma 2C 44
/ forward slash/virgule 2F 47
: colon 3A 58
; semicolon 3B 59
= equal 3D 61
? question mark 3F 63
@ “at” symbol 40 64
• 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]
NOTE: 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
Figure 41. ASCII to Hex Conversion Table