InFocus IN5533 - Page 54

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Control commands
IMPORTANT: When formatting commands sent from a control system or computer, enclose
commands in parentheses “(“ and “)”. When entering custom commands into Scheduled Tasks
in the projector’s web interface, enclose commands in less than/greater than symbols “<” and
“>” instead.
Serial Communication Configuration
Visit our website for additional RS-232 settings and
information.
To control this projector via RS-232, connect a null modem cable
and set the control system
serial port settings to match the following communication configuration
:
RS-232 Port Settings
Setting Valu e
Bits per second 115,200
Data bits 8
Parity None
Stop bits 1
Flow control None
Emulation VT100
Network Communication Configuration
For network control, you can
access the projector through Port 23 (Telnet).
We use the same control codes on serial as we do over the network. InFocus network control
uses the T
elnet packet structure.
Command Format
All commands consist of 3 alpha char
acters followed by a request, all enclosed in parentheses.
The request can be a read request (indicated by a "?") or a write request (indicated by 1 to 4
ASCII digits).
A read request example:
(AAA?) where
(starts the command
AAA denotes the command
? denotes the read request
) ends the command
A read command returns the range and the
current setting, for example:
Read Command Examples
Function Command Response
Brightness (BRT?) (0-100, 50)
Vo l u m e (VOL?) (0-100, 50)
Lamp Hours (LMP?) (0-32766, 42)
A write request example:
(AAA####) where
(starts the command
AAA denotes the command
#### denotes the value to be written
(leading zeros not necessary)
) ends the command
Some commands have ranges, while others are a
bsolute. If a number greater than the
maximum range is received, it is automatically set to the maximum number for that function.
If a command is received that is not understood, a "?" is returned. With absolute settings, "0"
is off, 1-9999 is on. The one exception is the Power command, where 0 is off and 1 is on.
To assure the projector can process a command,
wait 3 seconds before entering the next
command.
Write Command Examples
Function Command Response
Brightness (BRT100) Sets the brightness to
100
Power (PWR0) Turns power off
Power (PWR1) Turns power on