4. Command list

4.1 Operation commands

The operation commands are used for the basic operation setting of this projector. They may not be executed while the signals are changed. The operation commands have no data codes.

ITEM

Function

Note

 

 

Character

ASCII

 

 

 

 

 

 

POWER ON

!

21h

This command is invalid during cooling after the power is turned off.

 

 

 

 

POWER OFF

"

22h

This command is invalid during splash screen displaying after the power is turned on.

 

 

 

 

INPUT COMPUTER 1

_r1

5Fh 72h 31h

This command will not be executed in Stand-by mode.

 

 

 

 

INPUT COMPUTER 2

_r2

5Fh 72h 32h

This command will not be executed in Stand-by mode.

 

 

 

 

INPUT VIDEO

_v1

5Fh 76h 31h

This command will not be executed in Stand-by mode.

 

 

 

 

INPUT S-VIDEO

_v2

5Fh 76h 32h

This command will not be executed in Stand-by mode.

 

 

 

 

INPUT HDMI

_d1

5Fh 64h 31h

This command will not be executed in Stand-by mode.

 

 

 

 

[Example] When setting the input signal to COMPUTER 1. (Values enclosed in quotation marks are ASCII codes.):

Command sent from the PC, etc.

Status code returned

Description

from the projector

 

 

 

 

 

‘30’ ‘30’ ‘5F’ ‘72’ ‘31’ ‘0D’

 

Command for setting the input signal to

00_r1

 

COMPUTER 1

 

 

 

 

‘30’ ‘30’ ‘5F’ ‘72’ ‘31’ ‘0D’

Command receipt confirmation

 

00_r1

(Command echo back)

4.2 Reading command diagram

The projectors operating status, such as POWER-ON/OFF and the currently selected input terminal, etc. can be monitored. Input terminal is not available during no signal.

ITEM

Character

 

ASCII

 

 

 

 

Function

Data (Receive)

Function

Data (Receive)

 

 

 

 

 

 

POWER ON

vP

1

76h 50h

31h

 

 

 

 

 

POWER OFF

vP

0

76h 50h

30h

 

 

 

 

 

INPUT COMPUTER 1

vI

r1

76h 49h

72h 31h

 

 

 

 

 

INPUT COMPUTER 2

vI

r2

76h 49h

72h 32h

 

 

 

 

 

INPUT VIDEO

vI

v1

76h 49h

76h 31h

 

 

 

 

 

INPUT S-VIDEO

vI

v2

76h 49h

76h 32h

 

 

 

 

 

INPUT HDMI

vI

d1

76h 49h

64h 31h

 

 

 

 

 

Use the following commands to obtain the values of the lamp time.

ITEM

 

Function

Data (Receive)

 

 

Character

ASCII

 

 

 

 

 

 

LAMP TIME (LOW)

vLE

76h 4Ch 45

hhhhhmm

 

 

 

 

“hhhh” and “mm” represent hours and minutes respectively.

Use the following commands to obtain other information.

ITEM

 

Function

Data (Receive)

 

 

Character

ASCII

 

 

 

 

 

 

VOLUME

VL

56h 4Ch

00-10

 

 

 

 

The PC sends the command without attaching the data code to it. On the other hand, the projector attaches to the received command its current operating status as the data code and send it back to the PC.

[Example]

When checking the currently selected input terminal (when the INPUT VIDEO is being selected).

 

(Values enclosed in quotation marks are ASCII codes.):

 

 

 

 

 

Command sent from the PC, etc.

Status code returned

Description

from the projector

 

 

 

 

 

 

‘30’ ‘30’ ‘76’ ‘49’ ‘0D’

 

Command for checking the input

00vl

 

 

terminal

 

 

 

 

 

 

‘30’ ‘30’ ‘76’ ‘49’ ‘76’ ‘31’ ‘0D’

Check result (VIDEO)

 

 

00vlv1

 

 

 

 

 

5

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Mitsubishi Electronics EW331U-ST, EX321U-ST manual Command list Operation commands, Reading command diagram
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EW331U-ST, EX321U-ST specifications

Mitsubishi Electronics has solidified its reputation in the field of projectors with offerings like the EW331U-ST and EX321U-ST. These two models stand out for their remarkable features, advanced technologies, and user-friendly characteristics, making them an excellent choice for educational institutions and corporate environments.

The EW331U-ST is designed with a WUXGA resolution of 1920 x 1200 pixels, providing stunningly clear and sharp images. This model boasts a brightness level of up to 3,300 lumens, which ensures vibrant and visible presentations even in well-lit rooms. Its short-throw lens allows users to project large images from a short distance, making it ideal for smaller spaces where installation constraints may be a factor.

In addition to its impressive display capabilities, the EW331U-ST utilizes fantastic color reproduction technologies. Mitsubishi’s Color Adjustment feature enables users to adjust color settings for optimal presentation quality. This ensures that images remain true to their source, thus enhancing the overall viewing experience.

On the other hand, the EX321U-ST model, while similar in many aspects, focuses more on the versatility offered by its extensive connectivity options. Equipped with HDMI, USB, and VGA inputs, the EX321U-ST supports a variety of media sources, allowing users to connect easily to laptops, tablets, and even smartphones. This diversity is particularly beneficial for collaborative settings, where multiple devices may need to be connected simultaneously.

Both models leverage leading-edge DLP technology, renowned for producing crisp images and providing extended lamp life. They are engineered to consume less power while delivering maximum performance, contributing to lower operational costs and promoting energy efficiency.

Additionally, Mitsubishi Electronics integrates smart features such as automatic keystone correction and a built-in speaker, which simplify setup and enhance usability. An intuitive user interface allows quick adjustments, making these projectors accessible even to those who may not be tech-savvy.

In summary, Mitsubishi Electronics’ EW331U-ST and EX321U-ST projectors offer excellent performance coupled with user-friendly features. Their superior image quality, robust connectivity options, and energy-efficient design make them a compelling choice for anyone seeking reliable and powerful projection solutions.
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