Installation User guide
5-5
MLC 226 IP Series • SIS Programming and Control
PRELIMINARY
X1@
 =  MLC’s name. The name is a text string of up 
to 24 characters drawn from the alphabet 
(A-Z), digits (0-9), and minus sign/
hyphen (-). No blank or space characters 
are permitted as part of a name. No 
distinction is made between upper and 
lower case. The fi rst character must be 
a letter. The last character must not be a 
minus sign/hyphen.
X1#
 =  Local date and time format
 Set format (MM/DD/YY-HH:MM:SS). 
Example: 01/18/05-10:54:00.
 Read format (day of week, date month year 
HH:MM:SS). Example: Tue, 18 Jan 2005 
18:19:33.
X1$
 =  IP address (xxx.xxx.xxx.xxx). Leading zeros 
in each of four fi elds are optional in 
setting values, and they are suppressed in 
returned values.
MLC’s default address: 192.168.254.254
Default broadcast address: 
255.255.255.255.
X1%
 =  E-mail domain name; for example, extron.com
X1&
 = Time in tens of milliseconds to wait until the 
fi rst response character is received via a 
serial port before terminating the current 
receive operation (Default = 10 = 100 ms, 
max. = 32767.) The response includes 
leading zeros.
N
  For commands that use both 
X1&
 and 
X2)
, both 
variables must be zero or both must be non-zero.  
In the RS (send data) command, 
X1&
 is optional 
as long as 
X2)
 is also missing.
X1*
 =  Hardware (MAC) address (xx-xx-xx-xx-xx-xx) 
(00-05-A6-xx-xx-xx)
X1(
 =  Subnet mask (xxx.xxx.xxx.xxx). Leading 
zeros are optional in setting values in each 
of four fi elds, and they are suppressed in 
returned values. Default = 255.255.0.0.
X2)
 =  Time in tens of milliseconds to wait between 
characters being received via a serial port 
before terminating the current command 
or receive operation. The response 
includes leading zeros.
(Default = 2 = 20 ms, max. = 32767)
N
  For commands that use both 
X1&
 and 
X2)
, both 
variables must be zero or both must be non-zero.  
In the RS (send data) command, 
X1&
 is optional 
as long as 
X2)
 is also missing.
Symbol defi nitions
]
  =  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
|
  =  Pipe (vertical bar) character
E
 =  Escape key (hex 1B) 
(Use W instead of Esc for Web browsers.)
X!
 =  Specifi c port number or relay number (01 – 99)
Relays:
1 = relay 1, 2 = relay 2, 3 = relay 3, 
4 = relay 4, 5 = relay 5, 6 = relay 6
Other ports:
1 = rear host (Confi g/RS-232 port)
2 = front panel Confi g port
3 = slaved switcher (MLS port)
4 = display/projector port 
(Proj RS-232/IR)
5 = IR/Serial port A
6 = IR/Serial port B
7 = IR/Serial port C
X@
  =  Command data section.
N
  For Web encoding only: data is directed to 
the specifi ed port and must be encoded (URL 
encoding) if it is non-alphanumeric. Change 
any non-alphanumeric character (%, +, 
|
, 
}
, etc.) within the data section into the 
corresponding hexadecimal equivalent, %xx, 
where xx represents the two-character hex byte. 
For example, a space (hex: 20) would be encoded 
as %20 (hex: 25 32 30) and a plus sign (hex: 2B) 
would be encoded as %2B or hex 25 32 42.
X#
  =  Greenwich Mean Time (GMT) offset value 
(-12.00 to +14.00) represents the time 
difference in hours and minutes 
(+/-hh:mm) relative to Greenwich, 
England. The leading zero is optional. 
For example, 5:30 = 05:30. Do not use a 
plus (+) sign if the GMT offset is positive.
X%
  =  On/off status
0 = off/disable
1 = on/enable
X*
  =  Volume level (0 – 100 steps). The maximum 
volume level is limited by the max. 
volume range command (
X?
*47#).
Default volume = 25.
X1!
 =  Version (typically listed to two decimal 
places, e.g., x.xx)
N
  With Telnet you can use either an “Escape” (
E
) command or a “W” 
command, and the carriage return or the pipe character. With the Web browser, 
you are required to use a “W” command and the pipe character.
  In either method, {Data} = data that will be directed to a specifi ed port 
and must be hex encoded if non-alphanumeric.
N
  If you make adjustments (changes to volume, etc.), whether via the front panel 
or via RS-232 or IP communication, it will take 1 minute 40 seconds (100 
seconds) for the data in the MLC 226 IP’s RAM to be saved to fl ash memory.










