Mitsubishi DLP XD550U, DLP XD560U, DLP WD570U, XD360U-EST, WD380U-EST Control Manual

1

DLP Projector

XD550U/XD560U/WD570U/XD360U-EST/WD380U-EST

Controlling the projector using a personal computer

This projector can be controlled by connecting a personal computer with RS-232C terminal.

PC-controllable functions:

• Turning the power ON or OFF

• Changing input signals

• Inputting commands by pressing the buttons on the control panel and remote control

• Menu setting

Connection

MODEL

Important:

• Connect the computer with the projector on a one-to-one basis.

• Make sure that your computer and projector are turned off before connection.

• Boot up the computer first, and then plug the power cord of the projector.

(If you do not follow this instruct

ion, the Com port may not function.)

• Adapters may be necessary depending on the PC connected to this projector. Contact your dealer for details.

1.2 Communications format

This projector uses RXD, TXD and GND lines for RS-232C control.

PROTOCOL RS-232C

BAUD RATE 9600 [bps]

DATA LENGTH 8 [bits]

PARITY BIT NONE

STOP BIT 1 [bit]

FLOW CONTROL NONE

RS-232C
terminal

D-SUB 9-pin

D-SUB 9-pin

RS-232C cable

SERIAL

TM

1. Interface

1.1 Pin assignment of SERIAL terminal (D-SUB 9-pin)

Pin

Description Pin

Description

1

NC 2

RXD

4

NC

6

NC

8

CTS

3

TXD

5

GND

7

RTS

9

NC

1

2

3

4

5

6

7

8

9

(This illustration is XD550U/XD560U/WD570U.)

AUDIO OUT

AUDIO IN-3R

VIDEO

MONITOR OUT

IN-2

USB-B

USB-A

IN-1

COMPUTER / COMPONENT VIDEO

SERIAL

S-VIDEO

AUDIO IN-3L

AUDIO

IN-2

AUDIO

IN-1

2

2. Control command configuration

The command consists of the address code, function code, data code, ACK/NAK, and end code. The length of the com­mand varies among the functions.

[Address code] Fixed to 00. (‘30h’ ‘30h’ in the ASCII code)
[Function code] Code unique to each control operation.
[Data code] Data (value) unique to each control operation (Not always indicated.)
[ACK/NAK] Code indicating the NAK return as described below

Fixed to :N (‘3Ah’ ‘3Eh’ in the ASCII code. Not added to ACK.)

[End code] Fixed to .(‘0Dh’ in the ASCII code)

3. Control sequence

• NAK return
In the following cases, the projector returns the command with “:N” added.
(1) Though the command sent from the computer is received by the projector successfully, it cannot be executed

because the projector is in the operation prohibition state.

(2) The data length of the sent command is incorrect or the command is invalid.

• When a command is sent out during the following operations, it may not be executed.
(1) During signal switching
(2) In the process of the auto position
(3) After the power is turned on.

The projector receives no commands for about 20 seconds (or for 2 minutes at the longest if the lamp does not
light up promptly as the life is expiring). In this case, the projector returns the received command with NAK
added.

• The return command is sent out within 1 second at the latest.

• When sending commands successively, wait to receive the return command of the current command before sending
a next command.

• The projector may not receive a command when the splash screen is being displayed immediately after turning on
the power. Use command “00r10” to cancel the splash screen.

• While using the LAN terminals, the LAN functions take precedence.

• For the LAN terminals, the same commands as those for connecting with the TCP/IP (port number 63007) are avail­able. Note, however, that the response becomes slightly slower than when using the RS-232C terminals. For the use
of LAN terminals, see page 11.

Address code Function code Data code ACK/NAK End code
ASCII ‘30h’ ‘30h’ Function Data ‘3Ah’ ‘4Eh’ ‘0Dh’
Character 00 Function Data :N

Computer Projector Sequence Note

1

Send the command from the personal computer
to the projector.

2

The projector will send a return command after it
receives an end code.

If the projector does not receive commands
normally, that is, if the projector is not connected
physically or unable to receive commands, it
does not send out a return command.
The projector sends out a return command within
one second at the latest.
When the received command cannot be
executed, NAK is returned (as described below).

3

The personal computer checks the command
and confirms if the sent command has been
received or not.

4

Use the check command to see if the projector
has executed the command.

This projector sends various codes other than
the return code. When having a control
sequence by RS-232C, reject other codes from
the personal computer.

1

2

3

4

3

[Example 1] Turning ON the power. (Values enclosed in quotation marks are ASCII codes.):

[Example 2] Selecting VIDEO as the input signal during auto positioning (Values enclosed in quotation marks are

ASCII codes.):

• The flowchart on the next page shows the recommended operating sequence for your reference to create a pro­gram.

Command sent from the PC

Status code returned

from the projector

Description

‘30’ ‘30’ ‘21’ ‘0D’
00!

Command for POWER ON

‘30’ ‘30’ ‘21’ ‘0D’
00!

Command receipt confirmation (Command
echo back)

Command sent from the PC

Status code returned

from the projector

Description

‘30’ ‘30’ ‘5F’ ‘76’ ‘31’
00_V1

(During auto positioning)
Command for selecting VIDEO as the
input signal is sent out.

‘30’ ‘30’ ‘5F’ ‘76’ ‘31’ ‘3A’ ‘4E’
00_v1:N

The command is received by the projector
but cannot be executed. (NAK return)