BenQ LW855UST, LH856UST Projector RS232 Command Control Installation Guide

BenQ LW855UST, LH856UST Projector RS232 Command Control

Specifications

• Model: LW855UST/ LH856UST Projector
• Control Method: RS232 Command Control
• Connection Options: RS232 serial port, LAN, HDBaseT
• Baud Rate: 115200 bps (default, changeable settings available)
• Data Length : 8 bit
• Parity Check : None
• Stop Bit : 1 bit
• Flow Control : None

Product Usage Instructions

1. RS232 Serial Port Connection
   For connecting via RS232 serial port:

2. Connect D-Sub 9 pin (male) on the projector to a PC or laptop using a communication cable (crossover).

3. Set up the COM Port name in Device Manager and choose the corresponding COM port (e.g., COM6).

4. Adjust Serial port settings including Baud rate, Data length, Parity check, Stop bit, and Flow control based on your requirements.

5. RS232 via LAN
   For connecting via LAN:

6. Connect the RJ45 port on the projector to a PC or laptop using a LAN cable.

7. Ensure both the projector and computer are on the same network.

8. In the OSD menu, find the Wired LAN IP address of the projector and input 8000 in the TCP port # field.

9. RS232 via HDBaseT
   For connecting via HDBaseT:

10. Connect the HDBaseT compatible device to the RJ45 port on the projector using a LAN cable.

11. Set up the COM Port name in Device Manager and choose the corresponding COM port.

12. Adjust Serial port settings including Baud rate, Data length, Parity check, Stop bit, and Flow control based on your requirements.

Frequently Asked Questions (FAQ)

1. Q: What are the available functions for RS232 control?
   A: The available functions include Power On, Power off, Power Status, Source Selection, Audio Control, Mute On/Off, Volume +/-, and more. Refer to the command table in the manual for a detailed list of functions.

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

P1| Color| P2
1| Black| 1
2| Brown| 3
3| Red| 2
4| Orange| 4
5| Yellow| 5
6| Green| 6
7| Blue| 7
8| Purple| 8
9| Gray| 9
Case| Drain wire| Case

RS232 pin assignment

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.
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| 115200 bps (default) Changeable settings in User OSD (9600/14400/19200/38400/57600/115200)
---|---
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.
3. Finish Serial port setup.

Baud rate| 115200 bps (default) Changeable settings in User OSD (9600/14400/19200/38400/57600/115200)
---|---
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 . All the commands and behaviors are identical with the control through a serial port.

customer

| vol=value#| Yes
Read| Volume Status| vol=?#| Yes
Write| Mic. Volume +| micvol=+#| Yes
Write| Mic. Volume –| micvol=-#| Yes
Read| Mic. Volume Status| *micvol=?#| Yes
Audio source select| Write| Audio pass Through

off

| audiosour=off#| Yes
Write| Audio-Computer1| audiosour=RGB#| Yes
Write| Audio-Computer2| audiosour=RGB2#| No
Write| Audio-Video/S-Video| audiosour=vid#| No
Write| Audio-Component| audiosour=ypbr#| No
Write| Audio-HDMI| audiosour=hdmi#| Yes
Write| Audio-HDMI2| audiosour=hdmi2#| Yes
Write| Audio-HDMI3| audiosour=hdmi3#| No
Write| DisplayPort| audiosour=dp#| Yes
Write| HDBaseT| audiosour=hdbaset#| Yes
Write| Microphone| audiosour=microphone#| Yes
Read| Audio pass Status| audiosour=?#| Yes
Picture Mode| Write| Dynamic| appmod=dynamic#| No
Write| Presentation| appmod=preset#| Yes
Write| sRGB| appmod=srgb#| Yes
Write| Bright| appmod=bright#| Yes
Write| Living Room| appmod=livingroom#| No
Write| Game| appmod=game#| No
Write| Cinema(Rec. 709)| appmod=cine#| No
Write| Standard| appmod=std#| No
Write| Football| appmod=football#| No
Write| Football Bright| appmod=footballbt#| No
Write| DICOM| appmod=dicom#| No
Write| THX| appmod=thx#| No
Write| Silence mode| *appmod=silence#| No
Write| DCI-P3

mode(D.Cinema)

| appmod=dci-p3#| No
Write| Vivid| appmod=vivid#| No
Write| Infographic| appmod=infographic#| No
| Write| User1| appmod=user1#| Yes
---|---|---|---|---
Write| User2| appmod=user2#| Yes
Write| User3| appmod=user3#| No
Write| ISF Day| appmod=isfday#| No
Write| ISF Night| appmod=isfnight#| No
Write| 3D| appmod=threed#| Yes
Write| Sport| appmod=sport#| No
Write| HDR10| appmod=hdr10| Yes
Write| HLG| appmod=hlg| Yes
Write| Video| appmod=video| Yes
Read| Picture Mode| appmod=?#| Yes
Picture Setting| Write| Contrast +| con=+#| Yes
Write| Contrast –| con=-#| Yes
Write| Set Contrast value| con=5#| Yes
Read| Contrast value| con=?#| Yes
Write| Brightness +| bri=+#| Yes
Write| Brightness –| bri=-#| Yes
Write| Set Brightness value| bri=5#| Yes
Read| Brightness value| bri=?#| Yes
Write| Color +| color=+#| Yes
Write| Color –| color=-#| Yes
Write| Set Color value| color=5#| Yes
Read| Color value| color=?#| Yes
Write| Sharpness +| sharp=+#| Yes
Write| Sharpness –| sharp=-#| Yes
Write| Set Sharpness value| sharp=5#| Yes
Read| Sharpness value| sharp=?#| Yes
Write| Flesh Tone +| fleshtone=+#| No
Write| Flesh Tone –| fleshtone=-#| No
Write| Set Flesh Tone value| fleshtone=5#| No
Read| Flesh Tone value| fleshtone=?#| No
Write| Color

Temperature-Warmer

| *ct=warmer#| No
Write| Color

Temperature-Warm

| *ct=warm#| Yes
Write| Color

Temperature-Normal

| ct=normal#| Yes
Write| Color| ct=cool#| Yes
| | Temperature-Cool| |
---|---|---|---|---
Write| Color

Temperature-Cooler

| *ct=cooler#| No

Write

| Color

Temperature-lamp

native

|