Infocus QR80421 ユーザーズマニュアル

Command Control

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

Value

Bits per second

19,200

Data bits

Parity

None

Stop bits

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 Telnet packet structure.

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

Read Command Examples

Function

Command

Response

Brightness

(BRT?)

(96-160,128)

Volume

(VOL?)

(0-32,16)

Lamp Hours

(LMP?)

(0-32766, 42)

A read command returns the range and the current setting, for example:

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 enter-

ing the next command.