Installation User guide
SIS
™
 Programming and Control, cont’d
MLC 226 IP Series • SIS Programming and Control
5-6
PRELIMINARY
in March and ends the fi rst Sunday in 
November. DST should be turned off in 
Hawaii, American Samoa, Guam, Puerto 
Rico, the Virgin Islands, the eastern time 
zone portion of the state of Indiana, and 
the state of Arizona (excluding the Navajo 
Nation).
2 = Europe on – begins on the last Sunday 
in March, ends on the last Sunday in 
October. DST should be turned off for 
Iceland.
X3%
 = Event number, range = 0 - 99 
(valid only while events are running)
X4)
 =  I/O mode
0 = input
1 = output (digital I/O on 9-pin D 
connector only)
2 = input and pull-up resistor 
(digital I/O on 9-pin D connector only)
3 = output and pull-up resistor (digital 
I/O on 9-pin D connector only)
8 = power sensor digital input 
X4!
 =  Password to display on screen (response to 
password query or set). When the MLC 
connects to a host device via RS-232, the 
password (
X3#
), itself, is the response. 
When the connection is via IP, 
X4!
 is 4 
asterisks (****) if a password has been 
assigned, or it is an empty fi eld ( ) if a 
password hasn’t been assigned.
X4#
 =  I/O state 
0 = off
1 = on
X4%
 = E-mail event number or mailbox (1 - 64). The 
response is two digits with a leading zero.
X4^
 = E-mail recipient’s address (e.g., 
JDoe@extron.com) for the person to whom 
messages will be sent. The e-mail address 
has a 31 character maximum.
X4&
 =  Name (numeral) of e-mail fi le to be sent
X4(
 =  Default name: a combination of the model 
name and the last 3 pairs of the MLC’s 
MAC address (e.g., MLC-226-IP-00-02-3D)
X5@
 =  Connection’s security level
11 = user
12 = administrator
X5&
 =  IR playback fi le number (0 to 99) (no 
extension) The response includes leading 
zeros.
X5*
 =  IR playback function number (1 to 137) The 
response includes leading zeros. IR 
function numbers 0 and 127 or higher can 
return information only.
0 = return all data
129 = manufacturer
130 = model
131 = class
132 = remote
133 = creation date
134 = comments
137 = user fi le name (a descriptive name 
the user/installer gave the fi le).
X5(
 =  IR playback mode
0 = play once
1 = play continuously
X2!
 =  Parameter (#L or #D) to set either the Length 
of message to receive or the Delimiter 
value. # = byte count (for L) or 
# = a single ASCII character expressed in 
decimal form (for D). 
The parameter is case sensitive; you must 
use capital D or capital L.
Byte count # can be from 0 to 32767, 
default = 0.
The ASCII decimal # can be from 0 to 
00255, default = 00000L.
  Examples: 
A 3-byte length = 3L. 
A delimiter of ASCII 0A = 10D.
The response from the MLC includes 
leading zeros.
X2@
 =  Verbose/response mode status:
0 = clear/none, default for Telnet 
connections; responses are not echoed to 
the host
1 = verbose mode is on, default for RS-232 
host control; responses are echoed to the 
host and displayed to the user
2 = send tagged responses for queries
3 = verbose mode is on and tagged 
responses are sent for queries
N
  If tagged responses are enabled, all read 
commands return the constant string + data, 
the same as for setting a value. For example, 
for 
E
 CN 
}
, the response is Ipn•
X1@ ]
rather than just the data.
X2#
 =  Priority status for receiving timeouts:
0 = use send data string command 
parameters (0 = default)
1 = use confi gure receive timeout command 
parameters
X2%
 =  Baud rate: 300, 600, 1200, 1800, 2400, 3600, 
4800, 7200, 9600, 14400, 19200, 28800, 
38400, 57600, or 115200
X2^
 =  Parity (only the fi rst letter is needed): 
Odd
Even
None (default)
Mark
Space 
X2&
 =  Data bits: 7, 8 (default = 8)
X2*
 =  Stop bits: 1, 2 (default = 1)
X3#
 =  Password (minimum length = 4 characters, 
maximum length = 12 characters, 
no special characters are allowed)
N
  A user password cannot be assigned if no 
administrator password exists; the E14 error 
code will be returned. If the administrator 
password is cleared, then the user password is 
also removed. 
X3$
 =  Daylight saving time (DST) is a region-
specifi c 1-hour offset that begins in spring 
and ends in fall.
0 = off/ignore
1 = USA on – traditionally starts on the 
fi rst Sunday of April at 2 am and ends at 
2 am on the last Sunday of October. For 
example, time in California is GMT -8:00 
from April to October and GMT -7:00 
from November to March. However, in 
2007 DST starts on the second Sunday 










