Password information, Error responses, Error response references – Extron Electronics MLC 104 SIS Programming and Control User Manual

Page 3: Command tables, Using the command/response tables, Preliminar y

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5-3

MLC 104 Series • SIS

Programming and Control

PRELIMINAR

Y

• If the MLC is on, it sends the boot and copyright messages when you first open a

Telnet connection to the MLC. You can see the day of the week, date, and time if
the MLC is connected via Telnet, but not via RS-232. If you are using a Telnet
connection, the copyright message, date, and time are followed by a password
prompt.

C hn

X1

(where

X1

is the input number)

The MLC sends this response when an input is switched.

Password information

The “

Password:” prompt requires a password (administrator level or user level)

followed by a carriage return. The prompt is repeated if the correct password is not
entered.

If the correct password is entered, the unit responds with “

Login

Administrator

” or “

Login User

”, depending on password entered.

If passwords are the same for both administrator and user, the unit will default to
administrator privileges.

Error responses

When the MLC receives a valid SIS command, it executes the command and sends
a response to the host device. If the MLC 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:

E01 – Invalid input channel number (the number is too large)
E12 – Invalid port number
E13 – Invalid value (the number is out of range/too large)
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

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

MLC’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.

Command Tables

Using the command/response tables

The MLC 104 IP can be controlled via either a Telnet (port 23) connection or a Web
browser (port 80) connection. All MLC 104 Series models can be controlled via

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