Casio RS-232C User Manual

Casio data projector rs-232c control

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You can use the YK-5 serial conversion cable to connect the projector to a computer with a commercially available serial cable
(straight) and control the projector from the computer.

Be sure to read the user’s guide that comes with the projector and the YK-5 User’s Guide before trying to perform any of the
operations provided here.
Keep these instructions in a safe place for future reference.
• The contents of these instructions are subject to change without notice.
• Copying of these instructions, either in part or their entirety, is forbidden. You are allowed to use these instructions for your

own personal use. Any other use is forbidden without the permission of CASIO COMPUTER CO., LTD.

• CASIO COMPUTER CO., LTD. shall not be held liable for any lost profits or claims from third parties arising out of the use of

this product or these instructions.

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.

Important!

Important!

Important!

z

The commands that will be available to you depend on your projector model. Refer to your projector’s User’s Guide
for information about the menu items and button functions supported by your projector.
Example: Some models do not support “Lamp Time Reset”.

Command Send Format

• See the “Command List” for details about command names and settings.
• All commands use ASCII characters and decimal format integers.
• The projector will return a question mark (?) when it is sent a command it cannot recognize.
• Generally, the projector will ignore anything that is not a valid setting. However, in the case of a setting like VOL (volume) that

has a range (defined by minimum and maximum values), sending a value that is outside the specified range will change the
setting to its maximum value.

• If the projector is performing a process initiated by a previously sent command, a projector key operation, or a remote

controller key operation, send of the next command must wait until the projector completes the previous process.

Command List
• Except for the following functions, read and write cannot be performed while the projector is turned off.

• Power on/off: Read
• Power on: Write
• Get lamp time: Read
• Reset lamp time: Write (Only when the lamp reset time exceeds 2100 hours)

• Input of a valid signal must be in progress in order to use a command to turn on blank screen or change the aspect ratio.

R: Read enabled W: Write enabled

CASIO DATA 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 (straight)

Computer

Round connector

Serial port (RS-232C)

YK-5

D-Sub 9-pin (female)

D-Sub 9-pin (male)

Serial port

*

D-Sub 9-pin (female)

( V O L ? )

( 0 - 5 0 , 3 5 )

( V O L 0 )

Function

Command

Name

RW

Settings

Power On/Off: After turning off a model that requires cool down, you

must wait until the projector cools down before turning
power back on again. After power on, wait at least one
minute be turning power off.

PWR

RW

0: Off, 1: On

Input Switching: 0: Switches the input source to the COMPUTER

terminal and changes the COMPUTER terminal
setting to RGB.

1: Switches the input source to COMPUTER terminal

and changes the COMPUTER terminal setting to
component.

2: Switches the input source to Video.
5: Switches the input source to USB. This setting is

supported only when the projector is equipped with
a USB function and the USB application is running.

6: Switches the input source to COMPUTER terminal

and changes the COMPUTER terminal setting to
Auto.

SRC

RW

0: RGB, 1: Component,
2: Video, 5: USB,
6: Auto (RGB/Component),
7: HDMI, 8: Wireless

Blank Screen: Switches the blank screen on or off.

BLK

RW

0: Off, 1: On

Volume: Specifies a value to adjust the volume level. This setting is

applied to the input source signal that is currently being
projected by the projector.

VOL

RW

0 to 50 (or 0 to 30)

*

1

Color Mode: Selects the color mode.

PST

RW

0: Presentation, 1: Graphics,
2: Theater, 3: Standard,
4: Blackboard, 5: Game

Aspect Ratio: Specifies the aspect ratio.

ARZ

RW

0: Normal

*

2

, 1: 16:9,

2: Normal

*

3

, 3: Letter Box,

4: Full, 5: True, 6: 4:3

Optical Zoom Shift: Shifts the optical zoom setting by one step.

OZM

W

0: No change,
1: Shifts one step towards wide,
2: Shifts one step towards tele

Optical Focus Shift: Shifts the optical focus setting by one step.

OFC

W

0: No change,
1: Shifts one step towards near,
2: Shifts one step towards far

Get Lamp Time: Gets the lamp time from the projector.

LMP

R

0- Unit: Hours

Lamp time Reset: Resets the lamp time.
Lamp time can be reset only when it exceeds 2100 hours and projector
power is turned off.

LRT

W

0: Do not reset, 1: Reset

*1 The range depends on the projector.
*2 Input source: RGB or HDMI (PC)
*3 Input source: Video, component or HDMI (DTV)

RJA519687-001

Printed in Japan

MA1208-D

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