BenQ MH856UST Manuel utilisateur

MH856UST/ MW855UST/ MX854UST

Projector RS232 Command Control

Installation Guide

2 
Table of Contents 
Introduction ............................................................................................................................................. 3 
Wire arrangement........................................................................................................................................................3 
RS232 pin assignment..................................................................................................................................................3 
Connections and communication settings......................................................................................... 4 
RS232 serial port with a crossover cable ...............................................................................................................4 
Settings ..................................................................................................................................................................4 
RS232 via LAN..............................................................................................................................................................6 
Settings ..................................................................................................................................................................6 
RS232 via HDBaseT.....................................................................................................................................................6 
Settings ..................................................................................................................................................................6 
Command table....................................................................................................................................... 8 
 
 

Introduction

The document describes how to control your BenQ projector via RS232 from a computer. Follow the

procedures to complete the connection and settings first, and refer to the command table for RS232

commands.

Available functions and commands vary by model. Check the specifications and user manual of the purchased projector for

product functions.

Wire arrangement

Wire Arrangement

Color

Black

Brown

Red

Orange

Yellow

Green

Blue

Purple

Gray

Case

Drain wire

Case

RS232 pin assignment

Description

RXD

TXD

GND

RTS

CTS

Connections and communication settings

Choose one of the connections and set up properly before RS232 control.

RS232 serial port with a crossover cable

Settings

On-screen images in this document are for reference only. The screens may vary depending on your Operating System,

I/O ports used for connection, and the specifications of the connected projector.

1. Determine the COM Port name used for the RS232 communications in Device Manager.

PC or laptop

Communication cable (crossover)

D-Sub 9 pin (female)

D-Sub 9 pin (male) on a projector

2. Choose Serial and the corresponding COM port as the communication port. In this given example,

COM6 is selected.

3. Finish Serial port setup.

Baud rate

9600 / 14400 / 19200 / 38400 / 57600 / 115200 bps

Check the baud rate of the connected projector from its OSD menu.

Data length

8 bit

Parity check

None

Stop bit

1 bit

Flow control

None

RS232 via LAN

Settings

1. Find the Wired LAN IP address of the connected projector from the OSD menu and make sure the

projector and the computer are within the same network.

2. Input 8000 in the TCP port # field.

RS232 via HDBaseT

Settings

1. Determine the COM Port name used for the RS232 communications in Device Manager.

2. Choose Serial and the corresponding COM port as the communication port. In this given example,

COM6 is selected.

PC or laptop

RJ45 port on a projector

LAN cable

PC or laptop

HDBaseT compatible device

D-Sub 9 pin

RJ45

RJ45 port on a projector

LAN cable

D-Sub 9 pin

3. Finish Serial port setup.

Baud rate

9600 / 14400 / 19200 / 38400 / 57600 / 115200 bps

Check the baud rate of the connected projector from its OSD menu.

Data length

8 bit

Parity check

None

Stop bit

1 bit

Flow control

None

Command table

•Available features differ by projector specification, input sources, settings, etc..

•Commands are working if the standby power is 0.5W or a supported baud rate of the projector is set.

•Uppercase, lowercase, and a mixture of both types of characters are accepted for a command.

•If a command format is illegal, it will echo Illegal format.

•If a command with correct format is not valid for the projector model, it will echo Unsupported item.

•If a command with correct format cannot be executed under certain condition, it will echo Block item.

•If RS232 control is performed via LAN, a command works whether it starts and ends with <CR>. All the commands and

behaviors are identical with the control through a serial port.

Function

Type

Operation

ASCII

Support

Power

Write

Power On

Yes

Write

Power off

Yes

Read

Power Status

Yes

Source Selection

Write

COMPUTER/YPbPr

Yes

Write

COMPUTER 2/YPbPr2

Yes

Write

Component

Write

Component2

Write

DVI-A

Write

DVI-D

Write

HDMI

Yes

Write

HDMI 2

Yes

Write

Composite

Yes

Write

S-Video

Yes

Write

Network

<CR>*sour=network#<CR>

Write

USB Display

<CR>*sour=usbdisplay#<CR>

Write

USB Reader

<CR>*sour=usbreader#<CR>

Read

Current source

Yes

Audio Control

Write

Mute On

Yes

Write

Mute Off

Yes

Read

Mute Status

Yes

Write

Volume +

Yes

Write

Volume -

Yes

Read

Volume Status

Yes

Write

Mic.Volume +

<CR>*micvol=+#<CR>

Write

Mic.Volume -

<CR>*micvol=-#<CR>

Read

Mic.Volume Status

<CR>*micvol=?#<CR>

Audio source

select

Write

Audio pass Through off

<CR>*audiosour=off#<CR>

Yes

Write

Audio-Computer1

<CR>*audiosour=RGB#<CR>

Yes

Write

Audio-Computer2

<CR>*audiosour=RGB2#<CR>

Write

Audio-Video/S-Video

<CR>*audiosour=vid#<CR>

Yes

Write

Audio-Component

<CR>*audiosour=ypbr#<CR>

Write

Audio-HDMI

<CR>*audiosour=hdmi#<CR>

Yes

Write

Audio-HDMI2

<CR>*audiosour=hdmi2#<CR>

Read

Audio pass Status

<CR>*audiosour=?#<CR>

Yes

Picture Mode

Write

Dynamic

<CR>*appmod=dynamic#<CR>

Write

Presentation

<CR>*appmod=preset#<CR>

Yes

Write

sRGB

<CR>*appmod=srgb#<CR>

Yes

Write

Bright

<CR>*appmod=bright#<CR>

Yes

Write

Living Room

<CR>*appmod=livingroom#<CR>

Write

Game

<CR>*appmod=game#<CR>

Write

Cinema

<CR>*appmod=cine#<CR>

Yes

Write

Standard

<CR>*appmod=std#<CR>

Write

User1

<CR>*appmod=user1#<CR>

Yes

Write

User2

<CR>*appmod=user2#<CR>

Yes

Write

User3

<CR>*appmod=user3#<CR>

Write

ISF Day

<CR>*appmod=isfday#<CR>

Write

ISF Night

<CR>*appmod=isfnight#<CR>

Write

<CR>*appmod=threed#<CR>

Read

Picture Mode

<CR>*appmod=?#<CR>

Yes

Picture Setting

Write

Contrast +

Yes

Write

Contrast -

Yes

Read

Contrast value

Yes

Write

Brightness +

Yes

Write

Brightness -

Yes

Read

Brightness value

Yes

Write

Color +

<CR>*color=+#<CR>

Yes

Write

Color -

<CR>*color=-#<CR>

Yes

Read

Color value

<CR>*color=?#<CR>

Yes

Write

Sharpness +

<CR>*sharp=+#<CR>

Yes

Write

Sharpness -

<CR>*sharp=-#<CR>

Yes

Read

Sharpness value

<CR>*sharp=?#<CR>

Yes

Write

Color

Temperature-Warmer

<CR>*ct=warmer#<CR>

Write

Color

Temperature-Warm

Yes

Write

Color

<CR>*ct=normal#<CR>

Yes

Temperature-Normal

Write

Color

Temperature-Cool

Yes

Write

Color

Temperature-Cooler

<CR>*ct=cooler#<CR>

Write

Color

Temperature-lamp

native

<CR>*ct=native#<CR>

Yes

Read

Color Temperature

Status

Yes

Write

Aspect 4:3

Yes

Write

Aspect 16:9

Yes

Write

Aspect 16:10

Yes

Write

Aspect Auto

Yes

Write

Aspect Real

Write

Aspect Letterbox

Write

Aspect Wide

Write

Aspect Anamorphic

Read

Aspect Status

Yes

Write

Digital Zoom In

<CR>*zoomI#<CR>

Yes

Write

Digital Zoom out

<CR>*zoomO#<CR>

Yes

Write

Auto

Yes

Write

Brilliant color on

Yes

Write

Brilliant color off

Yes

Read

Brilliant color status

Yes

Operation

Settings

Write

Projector

Position-Front Table

Yes

Write

Projector Position-Rear

Table

Yes

Write

Projector Position-Rear

Ceiling

Yes

Write

Projector

Position-Front Ceiling

Yes

Write

Quick cooling on

<CR>*qcool=on<CR>

Yes

Write

Quick cooling off

<CR>*qcool=off<CR>

Yes

Read

Quick cooling status

<CR>*qcool=?<CR>

Yes

Write

Quick auto search

Yes

Write

Quick auto search

Yes

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