Symbol Definitions; Error Responses - Extron electronics DMP 128 User Manual

When programming, certain characters are more conveniently represented by their
hexadecimal rather than ASCII values. The table below shows the hexadecimal equivalent
of each ASCII character:
ASCII to HEX Conversion Table
Space
I
Figure 83.
The Command and 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 DMP 128 responses to the host, and a description of the command
function or the results of executing the command.

symbol definitions

]
}
E
notE: For Web encoding only: data is directed to the specified port and must be
encoded (URL encoding) if it is non-alphanumeric. Change any non-alphanumeric
character (%, +, } ) within the data section into the corresponding hexadecimal
equivalent, %xx, where xx represents the two-character hex byte. For example,
a space (hex:
encoded as %2B.

Error responses

When the DMP 128 is unable to execute the command, it returns an error response to the
host. The error response codes and their descriptions are as follows:
E12 - Invalid port number
E11 - Invalid preset
E13 - Invalid parameter (number is out of range)
E14 - Not valid for this configuration
E17 - System timed out
E22 - Busy
l
ASCII to Hex Conversion Table
Carriage return/line feed
=
Carriage return (no line feed)
=
•
Space character
=
|
=
Pipe (can be used interchangeably with the
*
Asterisk character (which is a command character, not a variable)
=
Escape key
=
W
=
can be used interchangeably with the
) would be encoded as %20 and a plus sign (hex: 2B) would be
20
•
}
character)
E
character
E24 - Privilege violation
E25 - Device is not present
E26 - Maximum connections exceeded
E27 - Invalid event number
E28 - Bad filename or file not found
DMP 128 • SIS Programming and Control 133