RS-232 Commands

RS-232 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.

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

 

115,200

 

 

 

Data bits

 

8

 

 

 

Parity

 

None

 

 

 

Stop bits

 

1

 

 

 

Flow control

 

None

 

 

 

Emulation

 

VT100

 

 

 

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

AAAdenotes 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)

 

 

 

Volume

(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 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.

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InFocus SP8602 RS-232 Commands, Communication Configuration, RS-232 Port Settings, Command Format, Read Command Examples