Extron electronic IPL 250

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

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Space

ASCII to Hex conversion table