Mitsubishi Electric UL7400U Manuale utente

LCD Projector

UL7400U

Controlling the projector via RS-232C connection

Contents

1. Introduction ............................................................................................................ 2

1.1 Connection............................................................................................................................... 2

1.2 Interface ................................................................................................................................... 2

1.2.1 Pin assignment of SERIAL terminal (D-SUB 9-pin).............................................................................. 2

1.2.2 Communications format ...................................................................................................................... 2

2. Control command conﬁguration ............................................................................ 3

3. Control sequence ................................................................................................... 3

4. Execution procedure of RS-232C commands via LAN.......................................... 6

5. Command list ......................................................................................................... 7

5.1 General control commands...................................................................................................... 7

5.2 Reading commands................................................................................................................. 7

5.2.1 Status read commands........................................................................................................................ 7

5.2.2 Read commands for items in INFORMATION menu............................................................................ 7

5.2.3 Read commands for other information................................................................................................ 8

5.3 Remote control key commands............................................................................................... 9

5.4 Direct commands................................................................................................................... 10

5.5 Function commands .............................................................................................................. 10

5.6 Menu setting commands ....................................................................................................... 11

5.6.1 IMAGE menu...................................................................................................................................... 11

5.6.2 INSTALLATION menu......................................................................................................................... 11

5.6.3 FEATURE menu.................................................................................................................................. 12

5.6.4 SIGNAL menu .................................................................................................................................... 12

5.6.5 NETWORK menu ............................................................................................................................... 13

5.7 Password lock commands..................................................................................................... 14

1. Introduction

This projector is controllable by 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

[Compatibility with the former models]

To use the RS-232C commands designed for the former models of Mitsubishi projector, by inputting

“00COMMAND0”, the projector responds in the same way as the former models. (No NAK is returned. For NAK

response, see page 4.)

(For the recommended procedure to use the former command systems, see “Controlling the projector using a

personal computer” for FL7000U.)

ITEM Function Data

Character ASCII code

Changing the RS-232C

command system

COMMAND

43h 4Fh 4Dh 4Dh 41h 4Eh 44h

0 (Former command system), 1 (New

command system)

1.1 Connection

Important:

• Make sure to connect one computer to one projector.

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

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

(If you do not follow this instruction, the COM port may not function.)

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

RS-232C crossover cable

D-SUB 9-pin

To SERIAL

terminal

To RS-232C terminal

D-SUB 9-pin

1.2 Interface

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

Pin No. Name I/O

1 OPEN

2 RXD IN

3 TXD OUT

4 OPEN

5 GND

6 OPEN

7 OPEN

8 OPEN

9 OPEN

1.2.2 Communications format

PROTOCOL RS-232C

BAUD RATE 9600 [bps]

DATA LENGTH 8 [bits]

PARITY BIT NONE

STOP BIT 1 [bit]

FLOW CONTROL NONE

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

For RS-232C cable, the supplied cable (crossover cable) should be used.

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 Function code Data code ACK/NAK End code

ASCII code ‘30h’ ‘30h’ Function Data ‘3Ah’ ‘4Eh’ ‘0Dh’

Character 00 Function Data :N

[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’ ‘4Eh’ in the ASCII code. Not added to ACK.)

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

3. Control sequence

Computer Projector

Sequence Note

1Send the command from the

personal computer to the projector.

After receiving the end code,

the projector sends the return

command.

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.

When the received command cannot be executed,

NAK is returned (as described below).

The personal computer checks the

return command and conﬁrms if the

sent command has been received or

not.

Use the check command to see

if the projector has executed the

command.

This projector sends various codes including

the return code. During the control sequence

by RS-232C, reject other codes on the personal

computer.

• 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.

(3) The signal length of the command is 48 bytes or longer.

• 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.

After the power is turned on, no command is received until the image is displayed. (Usually, it takes about

20 seconds. However, when the lamp illumination takes time, more time will be required accordingly.) In

this case, the projector returns the received command with NAK added.

• The return command is sent out within 1 second. In some cases, the response time takes longer (about 3

seconds).

• 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, refer to “4. Execution procedure of RS-232C commands via LAN”.

• When the NAK isn’t returned, check the RS-232C command system (00COMMAND).

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

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)

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

ASCII codes.):

Command sent from the PC Status code returned

from the projector Description

30’ ‘30’ ‘5F’ ‘76’ ‘31’ ‘0D’

00_v1

(During auto positioning)

Command for selecting VIDEO as the

input signal is sent out.

‘

30’ ‘30’ ‘5F’ ‘76’ ‘31’ ‘3A’ ‘4E’ ‘0D’

00_v1:N

The command is received by the

projector but cannot be executed.

(NAK return)

• The owchart on the next page shows the recommended operating sequence for your reference to create a

program.

Projector error

Send out “00vER” to check error details.

Recover from error state.

0–3

To normal operation 4

Enter password.

Send out “00PASS****.”

Projector is functioning.

Use “00FNCOFF” to cancel the current function.

Sending “00vST”

Checking response to “00vST”

[Method of checking state of projector]

Sending out command

Awaiting response

from projector

Checking execution of

command (sending out

check command)

No response for

3 seconds or longer

END

NAK returned

Command is sent successfully.

Command execution fails.

Command is sent successfully.

Command is executed successfully.

Command sending fails.

No NAK returned

[RS-232C control ﬂowchart]

START

Check the following.

•Check that the function code is

correct.

•Check that the data code is correct.

•Check that the projector is able to

issue the return command.

→Check the projector’s operation

using the 00vST command.

Note: In the following cases, NAK is

returned even when the

projector is in normal condition.

•

Immediately after the power is

turned on

(For status read commands)

approximately for 20 seconds

(For other commands) approxi-

mately for 1 minute

• During input switching

• During auto positioning

• During password lock

Check the following.

• Check that the command begins

with “00”.

• The projector is not supplied with

AC power.

→Check that AC power cord is

connected.

→Turn on the power. (Turn on the

circuit breaker.)

• Not connected with the projector.

→Check that the RS-232C cable is

connected.

→Check the RS-232C cable for

electrical discontinuity.

4. Execution procedure of RS-232C commands via LAN

• When you use the LAN function, set the STANDBY MODE to STANDARD or LAN.

• When you execute RS-232C commands via LAN, check that the CONTROL SYSTEM in the NETWORK menu is

set to STANDARD.

• You can change the certiﬁcation password using the NETWORK PASSWORD in the NETWORK menu. The default

password is “admin.”

• You can skip the certication process by setting the NETWORK CERTIFICATION in the NETWORK menu to OFF.

When you skip the certiﬁcation process, Steps 2 to 4 described below can be skipped and you can send RS-232C

commands without adding a certiﬁcation data.

Example:

Sending the PON command (00!) while the NETWORK CERTIFICATION is set to OFF

00!

For the procedure to set the menu, refer to the User Manual supplied with the projector.

To execute the RS-232C command via LAN while the NETWORK CERTIFICATION is set to ON, a 32-byte connection

certiﬁcation data must be added before the RS-232C command.

To create a 32-byte certiﬁcation data, following information and procedure are required.

• Random character string for creating the certication data that is acquired from the projector (8 characters)

• Network password of the projector (1 to 32 characters)

• MD5 hash calculation

• Based on the above, the execution procedures to connect to the projector and send the RS-232C commands

while the NETWORK CERTIFICATION is set to ON are described below.

1. Connect to Port 63007 of the projector from the PC as a TCP/IP client.

2. After completing the connection, send the acquisition request for the certiﬁcation data (“

$AK

”) (ASCII

code: 24 41 4B 0D) from the PC to the projector.

3. Acquire “

$AK********

” on the PC as the response of the request sent in Step 2. (********: Random character

string for creating the certiﬁcation data)

4. Create the certiﬁcation data on the PC.

• Create the key of the certication data by linking the data acquired in Step 3 with the network charac-

ter string.

For example, when the random character string is 12345678 and the password is ABCD, the key of the

certiﬁcation data is 12345678ABCD (character string in ASCII code).

• Run MD5 hash on the key of the certication data.

• Create the certication data by converting the hash-calculated 16-byte data into the ASCII code char-

acter string.

Example:

Calculation result: [4f][3c][5d][a1][7b][4f][b5][ed][2c][99][4e][bb][f6][57][67][54] (hexadecimal numeral)

Certiﬁcation data: 4f 3c 5d a1 7b 4f b5 ed 2c 99 4e bb f6 57 67 54 (character string in ASCII code)

5. Send the RS-232C command with the certiﬁcation data from the PC to the projector.

Example:

To send the PON command (00! ) using the certiﬁcation data created in Step 4:

4f3c5da17b4fb5ed2c994ebbf657675400!

6. Receive the response from the projector on the PC.

Response data has the following patterns.

Normal:

00!

(Parameter is added depending on the command.)

Error in the certiﬁcation data:

PRV=ERRA

Command error:

00!:N

PC Projector

1. Connection

2. Acquisition request of the certification data

3. Receiving of the certification data

4. Creation of the certification data

5. Sending of the RS-232C command

6. Receiving of the response data

5. Command list

5.1 General control commands

The general control commands are used for the basic operation setting of this projector. They may not be exe-

cuted while the signals are changed. The general control commands have no data codes. (When the commands

for input select are sent while the splash screen is being displayed, the splash screen is only canceled.)

ITEM Function Note

Character

ASCII code

POWER ON

21h

This command is invalid for 150 seconds after the power is turned off.

POWER OFF

22h

This command is invalid for 1 minute after the power is turned on.

INPUT COMPUTER 1

_r1

5Fh 72h 31h