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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 SMD101 responses to the host, and a description of the command function or
the results of executing the command.
Symbol definitions
]
=
CR/LF (carriage return/line feed) (hex 0D 0A)
}
=
Carriage return (no line feed, hex 0D)
(for URL-encoded commands, use the pipe
character,
|
, instead)
•
=
Space character (%20 for web browser)
|
=
Pipe (vertical bar) character
*
=
Asterisk character (which is a command character,
not a variable)
E
=
Escape key (hex 1B)
(use W instead of Esc for Web browsers)
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: 20) is encoded as %20, and a plus sign (hex: 2B) is encoded as %2B.
Error Responses
When the SMD101 is unable to execute the command, it returns an error response to the
host. The error response codes and their descriptions are as follows:
E10
Unrecognized command
E24
Privilege violation
E12
Invalid port number
E25
Device is not present
E13
Invalid parameter (number is out of
range)
E26
Maximum connections
exceeded
E14
Not valid for this configuration
E28
Bad filename or file not found
E17
System timed out
E30
Hardware failure
E22
Busy
E31
Attempt to break port pass-
through when not set
62SMD101 • Remote Communication and Control