InFocus LP720 Installation instructions

LP720 RS-232 Command Values

Communication Configuration

To control one of the above noted projectors from an RS-232 control system, connect the serial cable or a null modem cable and

the InFocus RS-232 Adapter (SP-CWRS232) and set the control system serial port settings to match the following communication

configuration*:

RS-232 Port Settings

Setting Value

Bits per second 19,200

Data bits 8

Parity None

Stop bits 1

Flow control None

Emulation VT100

RS-232 Connection for LP720

The RS-232/serial connection for these projectors is located on the PC side of the CableWizard II connection hub. Use the serial

cable (IFS part # 210-0107-xx) to connect the CableWizard II to the serial port of the computer source.

Note: CableWizard3(p/n SP-CW3) does not support RS-232. You must Use CableWizard II (p/n SP-CW2) and the InFocus

serial cable.

Command Format

All commands consist of 3 alpha characters 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?) (0-22, 10)

Volume (VOL?) (0-80, 0)

Lamp Hours (LMP?) (0-9999, 421)

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 absolute. 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 (BRT10) Sets the brightness

to 10

Freeze (FRZ1) or

(FRZ8888) Freezes the display

Power (PWR0) Turns power off

Power (PWR1) Turns power on

Error Conditions

Not all commands are supported for all projectors. If an unsupported command is issued, the command will be ignored. If a

command is received that is not understood, a ‘?’ character will be returned indicating the command was not understood.

Limitations

The CLI cannot respond to commands coming in at a high-rate. Therefore, a delay must occur between commands to ensure that

the command gets properly executed. To assure the projector can process a command, wait 3 seconds before entering the next

command.

The following table lists the RS-232 command value ranges for controlling the LP720.

Note: Specified commands and values apply to the LP720 with version 3.04 software or higher. The version number of the

software is the first number listed in the upper right corner of the on-screen menu. Command values for LP720s with earlier

software versions may vary. If your LP720 does not have version 3.04 software or higher, go to the Software/Downloads page to

download and upgrade the projector software.

For absolute command value ranges of 0 - 1, 0 = "Off" and 1-9999 = "On" unless otherwise noted.

Range

Data Source

(Computer) Video Source

Function Command

Min-Max, Initial Value Min-Max, Initial Value

Power (write

only) ("PWR") N/A N/A

Brightness ("BRT") 0-22,11 0-255,129

Tint ("TNT") 0-22,11 0-63,33

Contrast ("CON") 0-22,11 0-127,63

ColorTemp ("TMP") N/A N/A

Saturation ("CLR") N/A 0-63,37

Optimize ("OPT") N/A N/A

VideoFmt ("VSU") N/A 0-4,0

Volume ("VOL") 0-80,40 0-80,40

Balance ("BAL") 0-31,16 0-31,16

Treble ("TRB") 0-14,7 0-14,7

Bass ("BAS") 0-14,7 0-14,7

Fade ("FAD") 0-31,16 0-31,16

Ambiance ("AMB") 0-37,19 0-37,19

Mute ("MTE") 0-1,0 0-1,0

Manual Tracking ("MTS") 0-63,32* N/A

Manual Sync ("MSS") 0-19,10* N/A

Horiz Position ("HPS") 0-63,32* N/A

Vertical Position ("VPS") 0-63,32* N/A

Auto Image ("AIM") 0-1,1 N/A

Resize ("ARZ") 0-1,1 0-1,1

Freeze ("FRZ") 0-1,0 0-1,0

Language ("LAN") 0-3,0 0-3,0

Ceiling ("CEL") 0-1,0 0-1,0

Rear Project ("REA") 0-1,0 0-1,0

Reset ("RST") 0-1,0 0-1,0

Auto Source ("ASC") 0-1,0 0-1,0

Default Source ("DSC") 0-1,0 0-1,0

Blank Screen ("BSC") 0-1,0 0-1,0

Menu Position ("MPS") N/A N/A

Standby Time ("SBT") N/A N/A

Display

Messages ("DMG") N/A N/A

Display Startup

Screen ("DSU") N/A N/A

Standby Mode ("STB") 0-1,0 0-1,0

Source ("SRC") 0-1,0

0 = computer

1 = video

0-1,0

0 = computer

1 = video

Bulb Clock (read

only) ("LMP") 0-9999,0 0-9999,0

*Software dynamically changes range based on the signal received.

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