Mitsubishi Electric UL7400U User manual

1
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

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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.

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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
1
2
3
4
Sequence Note
1Send the command from the
personal computer to the projector.
2
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).
3
The personal computer checks the
return 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 including
the return code. During the control sequence
by RS-232C, reject other codes on the personal
computer.

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• 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.

5
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.
65
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)
OK
NG
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.

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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

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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 This command is not received during stand-by and BLANK.
INPUT COMPUTER 2 _r2 5Fh 72h 32h This command is not received during stand-by and BLANK.
INPUT HDMI _d1 5Fh 64h 31h This command is not received during stand-by and BLANK.
INPUT DVI _d2 5Fh 64h 32h This command is not received during stand-by and BLANK.
INPUT VIDEO _v1 5Fh 76h 31h This command is not received during stand-by and BLANK.
INPUT S-VIDEO _v2 5Fh 76h 32h This command is not received during stand-by and BLANK.
[Example] When setting the input signal to COMPUTER 1. (Values enclosed in quotation marks are ASCII
codes.):
Command sent from the PC, etc. Status code returned
from the projector Description
‘30’ ‘30’ ‘5F’ ‘72’ ‘31’ ‘0D’
00_r1
Command for setting the input signal
to COMPUTER 1
‘30’ ‘30’ ‘5F’ ‘72’ ‘31’ ‘0D’
00_r1
Command receipt confirmation
(Command echo back)
5.2 Reading commands
5.2.1 Status read commands
The projector’s operating status, such as POWER-ON/OFF and the currently selected input terminal, etc. can be monitored.
ITEM Function Data (Receive) Status
Character ASCII Character ASCII
POWER vP 76h 50h 1 31h POWER ON
0 30h POWER OFF
INPUT vI 76h 49h r1 72h 31h INPUT COMPUTER 1
r2 72h 32h INPUT COMPUTER 2
d1 64h 31h INPUT HDMI
d2 64h 32h INPUT DVI
v1 76h 31h INPUT VIDEO
v2 76h 32h INPUT S-VIDEO
P-ON/OFF
ENABLED/DISABLED
vPK 76h 50h 4Bh 0 30h POWER ON/OFF
DISABLED
1 31h POWER ON/OFF
ENABLED
SIGNAL INPUT vSM 76h 53h 4Dh 0 30h NO SIGNAL SUPPLIED
1 31h SIGNAL SUPPLIED
5.2.2 Read commands for items in INFORMATION menu
Use the following commands to obtain the values of the items in the INFORMATION menu.
ITEM Function Data (Receive)
Character ASCII code
LAMP TIME (LOW) vLE 76h 4Ch 45h hhhhmm
SERIAL NUMBER vS/N 76h 53h 2Fh 4Eh ******* (within 7 characters)
RESOLUTION vRESO 76h 52h 45h 53h 4Fh HHHHxVVVV
VERTICAL FREQUENCY vVFREQ 76h 56h 46h 52h 45h 51h ***.**
HORIZONTAL FREQUENCY vHFREQ 76h 48h 46h 52h 45h 51h ***.**
SYNC. TYPE vSYNCT 76h 53h 59h 4Eh 43h 54h 0 (NO SIGNAL), 1 (Invalid), 3 (3wire),
4 (4wire), 5 (5wire), 6 (SCART)
“hhhh” and “mm” represent hours and minutes respectively.
“HHHH” and “VVVV” represent the horizontal and vertical resolutions respectively.
“***.**” represents the vertical frequency (in Hz) or the horizontal frequency (in kHz).

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5.2.3 Read commands for other information
Use the following commands to obtain other information.
ITEM Function Data (Receive)
Character ASCII code
Model name vMDL 76h 4Dh 44h 4Ch **************** (within 16 characters)
Input source vSOUCE 76h 53h 4Fh 55h 43h 45h r1 r2 v1 v2 d1 d2
Number of remaining filters vFLTS 76h 46h 4Ch 54h 53h 00 to 09
Reading of filter usage time vFLTT 76h 46h 4Ch 54h 54h 0000 to 9999
Projector status vST 76h 53h 54h 0 (Stand-by mode),
1 (Within 1 minute after POWER-ON (warm-up
mode)),
2 (POWER-ON mode (including state of warning)),
3 (Cooling mode),
4 (Abnormal state (including shutdown due to an
error)),
5 (State of functioning (menu display, dialog display,
BLANK, SPLIT, FREEZE, etc.)),
6 (Awaiting password entry)
Error status vER 76h 45h 52h Reading of the error status data (3 digits,
hexadecimal numbers, total 9 bits)
(MSB) xb1, xb2... xb8, xb9, 0, 0, 0 (LSB)
xb1(800): Fan error
xb2(400): Lamp error (The lamp goes out or does not
light.)
xb3(200): Lamp warning 1 (The lamp life has
expired.)
xb4(100): Lamp warning 2 (The lamp life is expiring.)
xb5(080): Temperature error
xb6(040): The temperature warning is being
indicated.
xb7(020): Lamp cover open error
xb8(010): Filter/filter cover open error
xb9(008): States of other component abnormality
When only one error occurs, value shown in
parentheses is returned.
When multiple errors occur at the same time, the
bits of all the occurred error are set.
Example)
C00: When fan error and lamp error occur at the
same time
180: When lamp warning 2 and temperature error
occur at the same time
The PC sends the command without attaching the data code to it. On the other hand, the projector attaches to
the received command its current operating status as the data code and send it back to the PC.
[Example] When checking the currently selected input terminal (when the INPUT VIDEO is being selected).
(Values enclosed in quotation marks are ASCII codes.):
Command sent from the PC, etc. Status code returned
from the projector Description
‘30’ ‘30’ ‘76’ ‘49’ ‘0D’
00vl
Command for checking the input
terminal
‘30’ ‘30’ ‘76’ ‘49’ ‘76’ ‘31’ ‘0D’
00vlv1
Check result (VIDEO)

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5.3 Remote control key commands (Not executable in stand-by mode. When the remote control key com-
mands are sent while the splash screen is being displayed, the splash screen is only canceled.)
The remote control key commands allow the computer to control the projector in the same way as by the remote control.
(Some operations cannot be controlled.) The remote control key commands have no data codes.
Button’s name on remote
control
Function
Character ASCII code
+/VOLUME r06 72h 30h 36h
-/VOLUME r07 72h 30h 37h
ZOOM/FOCUS r0f 72h 30h 66h
LENS SHIFT r47 72h 34h 37h
GEOMETRY r43 72h 34h 33h
PinP/SPLIT (SPLIT only) r04 72h 30h 34h
BLANK ra6 72h 61h 36h
r53 72h 35h 33h
r2b 72h 32h 62h
r4f 72h 34h 66h
r59 72h 35h 39h
MENU r54 72h 35h 34h
ENTER r10 72h 31h 30h
AUTO POSITION r09 72h 30h 39h
FREEZE ra4 72h 61h 34h
ASPECT re2 72h 65h 32h
CE re7 72h 65h 37h
TEST PATTERN r50 72h 35h 30h
SUPER RESOLUTION r96 72h 39h 36h
1 (numeric keypad) r49 72h 34h 39h
2 (numeric keypad) r4a 72h 34h 61h
3 (numeric keypad) r4b 72h 34h 62h
4 (numeric keypad) r4c 72h 34h 63h
5 (numeric keypad) r4d 72h 34h 64h
6 (numeric keypad) r4e 72h 34h 65h
7 (numeric keypad) r88 72h 38h 38h
8 (numeric keypad) r58 72h 35h 38h
9 (numeric keypad) r89 72h 38h 39h
0 (numeric keypad) r48 72h 34h 38h
[Example] When displaying the MENU selection bar. (Values enclosed in quotation marks are ASCII codes.):
Command sent from the PC, etc. Status code returned
from the projector Description
‘30’ ‘30’ ‘72’ ‘35’ ‘34’ ‘0D’
00r54
Command operating the same as the
MENU button
‘30’ ‘30’ ‘72’ ‘35’ ‘34’ ‘0D’
00r54
Command receipt confirmation
(Command echo back)

10
5.4 Direct commands (Not executable in stand-by mode. Possible only to read during BLANK.)
The direct commands are used to numerically adjust the geometrical correction and volume.
When the computer sends the command without adding the setting value, the projector returns the received
command with the current setting value added as a data code.
ITEM Function Data
Character ASCII code
KEYSTONE (vertical) KS 4Bh 53h ±40
With CURVED-adjustment : ±10
KEYSTONE (horizontal) KSH 4Bh 53h 48H ±25
With CURVED-adjustment : ±10
KEYSTONE reset KSRST 4Bh 53h 52h 53h 54h
CORNERSTONE LOWER RIGHT
(vertical)
CNLRV 43h 4Eh 4Ch 52h 56h ±99
CORNERSTONE LOWER RIGHT
(horizontal)
CNLRH 43h 4Eh 4Ch 52h 48h ±99
CORNERSTONE LOWER LEFT
(vertical)
CNLLV 43h 4Eh 4Ch 4Ch 56h ±99
CORNERSTONE LOWER LEFT
(horizontal)
CNLLH 43h 4Eh 4Ch 4Ch 48h ±99
CORNERSTONE UPPER RIGHT
(vertical)
CNURV 43h 4Eh 55h 52h 56h ±99
CORNERSTONE UPPER RIGHT
(horizontal)
CNURH 43h 4Eh 55h 52h 48h ±99
CORNERSTONE UPPER LEFT
(vertical)
CNULV 43h 4Eh 55h 4Ch 56h ±99
CORNERSTONE UPPER LEFT
(horizontal)
CNULH 43h 4Eh 55h 4Ch 48h ±99
CORNERSTONE reset CKSRST 43h 4Bh 53h 52h 53h 54h
HORIZ. CURVED ARC CVAH 43h 56h 41h 48h ±50
With KEYSTONE-adjustment
: ±15
VERT. CURVED ARC CVAV 43h 56h 41h 56h ±50
With KEYSTONE-adjustment
: ±15
HORIZ. CURVED ORIGIN (vertical) CVHOV 43h 56h 48h 4Fh 56h ±10
HORIZ. CURVED ORIGIN
(horizontal)
CVHOH 43h 56h 48h 4Fh 48h ±10
VERT. CURVED ORIGIN (vertical) CVVOV 43h 56h 56h 4Fh 56h ±10
VERT. CURVED ORIGIN (horizontal) CVVOH 43h 56h 56h 4Fh 48h ±10
CURVED reset CVRST 43h 56h 52h 53h 54h
VOLUME VL 56h 4Ch 00 to 31
How to set the value
Use the character or ASCII code as shown below to set the value.
Character + - 0 1 2 3 4 5 6 7 8 9
ASCII code ‘2Bh’ ‘2Dh’ ‘30h’ ‘31h’ ‘32h’ ‘33h’ ‘34h’ ‘35h’ ‘36h’ ‘37h’ ‘38h’ ‘39h’
5.5 Function commands (Not executable in stand-by mode. When these commands are sent while the splash
screen is being displayed, the splash screen is canceled.)
ITEM Function Data
Character ASCII code
BLANK MUTE 4Dh 55h 54h 45h 0 (OFF), 1 (ON)
SPLIT SPLT 53h 50h 4Ch 54h 0 (OFF), 1 (ON)
FREEZE FRZ 46h 52h 5Ah 0 (OFF), 1 (ON)
Function canceling FNCOFF 46h 4Eh 43h 4Fh 46h 46h