Casio XJ-M150 User Manual - Page 60

Projector RS-232C Control, Connecting the Projector to a Computer

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Projector RS-232C Control You can use a commercially available serial cable (cross) to connect the projector to a computer and control the projector from the computer. Connecting the Projector to a Computer Connect the projector to the computer as shown in the illustration below. Projector Serial port (RS-232C) D-Sub 9-pin (female) Computer D-Sub 9-pin (female) Commercially available serial cable (cross) Serial port* * A D-Sub 9-pin (male) type connector is standard for computer serial ports, but there may be cases where the shape of a particular computer's connector is different. For details about connecting a commercially available serial cable to your computer, see the user documentation that comes with it. Using Control Commands This section explains the commands that are used to control the projector from a computer. Command Send Format Configure your computer's serial port with the following settings. Data Rate 19200bps Communication Protocol Data Bit Parity 8bit None Stop Bit 1bit Flow Control None Send this command when you want information about the current setup of the data projector. Send Format (?) Read Command Receive Format Command Send Example (,) ( V O L ? ) sent from the computer to the projector. 4 ( 0 - 5 0 , 3 5 ) returned from the projector to the computer. Send this command to control the data projector (power on/off, etc.) and to write data to it. Send Format () Write Command Command Send Example ( V O L 0 ) sent from the computer to the projector. 4 Projector volume setting becomes 0 (mute). 60

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You can use a commercially available serial cable (cross) to connect the projector to a computer and
control the projector from the computer.
Connecting the Projector to a Computer
Connect the projector to the computer as shown in the illustration below.
*
A D-Sub 9-pin (male) type connector is standard for computer serial ports, but there may be cases
where the shape of a particular computer’s connector is different. For details about connecting a
commercially available serial cable to your computer, see the user documentation that comes with
it.
Using Control Commands
This section explains the commands that are used to control the projector from a computer.
Command Send Format
Projector RS-232C Control
Communication
Protocol
Configure your computer’s serial port with the following settings.
Data Rate
19200bps
Data Bit
8bit
Parity
None
Stop Bit
1bit
Flow Control
None
Read Command
Send this command when you want information about the current setup of the data
projector.
Send Format
(<command name>?)
Receive Format
(<applicable command setting range>,<current setting>)
Command Send
Example
sent from the computer to the projector.
4
returned from the projector to the computer.
Write Command
Send this command to control the data projector (power on/off, etc.) and to write data to it.
Send Format
(<command name><setting value>)
Command Send
Example
sent from the computer to the projector.
4
Projector volume setting becomes 0 (mute).
Projector
Commercially available serial cable (cross)
Computer
Serial port (RS-232C)
D-Sub 9-pin (female)
Serial port
*
D-Sub 9-pin (female)
( VOL ? )
(0-50,35)
( VOL 0 )