Controlling the projector by using RS-232C

Conditioning of the Projection Unit can also be done by a computer via the RS-232C, as well as by the remote control.

8

7

Pin No.

Signal

Meaning

6

1

 

RXD

Receiving data

5

 

 

2

 

CTS

Consent to send

3

3

 

DSR

Data set ready

 

4

4

 

GND

Signal ground

 

5

 

RTS

Request to send

2

1

 

6

 

N.C

No connection

Mini DIN 8-pin

 

7

 

TXD

Sending data

(Main Unit)

 

 

 

 

8

 

N.C

No connection

 

 

 

 

Interface format

1

Communication

RS-232C

 

method

9600 bps, No parity, Data length: 8 bit,

 

 

Stop bit: 1 bit

 

 

 

 

 

 

 

 

 

2

Communication

STX (02h)

Command (3Byte)

ETX (03h)

 

format

One command only can be used in one

 

 

communication.

3

Data format

Command shall be composed of

 

 

alphanumeric characters of ASCII

 

 

description. Use only capital letters.

 

 

 

 

 

 

 

4

Return value

Acknowledge

ACK (06h)

 

 

 

 

 

 

 

 

 

 

 

Not Acknowledge

NAK (15h)

 

 

 

 

 

 

 

 

 

 

Note

When commands are transmitted serially, keep more than 100 ms intervals between the commands. However, leave a sufficient time interval for processing which requires time, such as input switching.

Command list

Classification

Command

Meaning

 

Remote control/Key

POF

Power (Off)

 

 

Remote control/Key

PON

Power (On)

 

 

Special

PSD

Power shut down

 

 

Key

IN0

Input (Toggle)

 

 

Remote control/Key

IN1

Input (RGB)

 

 

Remote control/Key

IN2

Input (Reset)

 

 

Remote control

RS0

Zoom (Reset)

 

 

Remote control

RDP

Zoom (Enlarge)

 

 

Remote control

RDW

Zoom (Reduce)

 

 

Remote control

PO1

Zoom position (Upward)

 

 

Remote control

PO2

Zoom position (Downward)

 

 

Remote control

PO3

Zoom position (Leftward)

 

 

Remote control

PO4

Zoom position (Rightward)

 

 

Remote control

FOF

Freeze (Off)

 

 

Remote control

FON

Freeze (On)

 

 

Remote control

MOF

Mute (Off)

 

 

Remote control

MON

Mute (On)

 

 

Remote control

PKA

Auto keystone

 

 

Adjustment

ARG

Adjustment value (Increase)

 

 

Adjustment

ALF

Adjustment value (Decrease)

 

 

Picture adjustment

VCN

Contrast adjustment

 

 

Picture adjustment

VBR

Brightness adjustment

 

 

Picture adjustment

VCL

Color adjustment

 

 

 

Picture adjustment

VTN

Tint adjustment

 

 

 

Picture adjustment

VSH

Sharpness adjustment

 

 

Others

 

 

 

 

 

 

 

 

 

 

 

Continued