Extron Electronics IPL 250 Reference Manual - Manual (Page 59)

4-3 IPL 250 • SIS Programming and Control
Error responses
When the IPL 250 receives a valid SIS command, it executes the command and
sends a response to the host device. If the IPL is unable to execute the command
because the command is invalid or it contains invalid parameters, it returns an
error response to the host.
The error response codes and their descriptions are as follows:
E10 – Invalid command
E12 – Invalid port number
E13 – Invalid value (the number is out of range/too large) or parameter
E14 – Not valid for this configuration
E17 – System timed out
E22 – Busy
E24 – Privilege violation
E25 – Device is not present
E26 – Maximum number of connections has been exceeded
E27 – Invalid event number
E28 – Bad filename or file not found
E31 – Attempt to break port pass-through when not set (A user or software
attempted to disable the port redirect feature when it wasn’t already set or active.)
Error response references
The following superscripted numbers are used within the command descriptions
on the following pages to identify commands that may respond as shown:
14 = Commands that give an E14 (not valid for this configuration) response if the
unit’s current configuration doesn’t support that command.
22 = Commands that yield an E22 (busy) response.
24 = Commands that give an E24 (privilege violation) response if you are not logged
in at the administrator level.
27 = Commands that may yield an E27 (invalid event number) response.
28 = Commands that may give an E28 (file not found) response.
Commands and Reponses
Using the command/response tables
The IPL 250 can be controlled via a Telnet (port 23) connection using ASCII commands,
or 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.
ASCII to Hex Conversion Table
•
Space
ASCII to Hex conversion table