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Mitsubishi Electric UD740U User Manual

Controlling the projector using a personal computer.
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MODEL
UD740U
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
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 instruction, the Com port may not function.)
 Adapters may be necessary depending on the PC connected to this projector. Contact your dealer for details.
1. Interface
1.1 Pin assignment of SERIAL terminal (D-SUB 9-pin)
Pin
Description
1
NC
3
TXD
5
GND
7
RTS
9
NC
1.2 Communications format
PROTOCOL
BAUD RATE
DATA LENGTH
PARITY BIT
STOP BIT
FLOW CONTROL
This projector uses RXD, TXD and GND lines for RS-232C control.
Pin
Description
2
RXD
4
NC
6
NC
8
CTS
RS-232C
9600 [bps]
8 [bits]
NONE
1 [bit]
NONE
1

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   Summary of Contents for Mitsubishi Electric UD740U

  • Page 1 MODEL UD740U 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 ...
  • Page 2: Control Command Configuration

    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 ‘30h’ ‘30h’ Function Data ‘3Ah’...
  • Page 3 [Example 1] Turning ON the power. (Values enclosed in quotation marks are ASCII codes.): Status code returned Command sent from the PC Description from the projector ‘30’ ‘30’ ‘21’ ‘0D’ Command for POWER ON ‘30’ ‘30’ ‘21’ ‘0D’ 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.):...
  • Page 4 Send out “00PASS****”. [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 the recommended procedure to use the former command systems, see “Controlling the projector using a personal computer”...
  • Page 5: Command List

    4. Command list 4.1 Operation commands The operation commands are used for the basic operation setting of this projector. They may not be executed while the signals are changed. The operation 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.) Function ITEM...
  • Page 6 Use the following commands to obtain other information. Function ITEM Data (Receive) Character ASCII Model name vMDL 76h 4Dh 44h 4Ch ****************(within 16 characters) Projector status 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)),...
  • Page 7 [Example] When displaying the MENU selection bar. (Values enclosed in quotation marks are ASCII codes.): Status code returned Command sent from the PC, etc. Description from the projector ‘30’ ‘30’ ‘72’ ‘35’ ‘34’ ‘0D’ Command operating the same as 00r54 the MENU button ‘30’...
  • Page 8 Function ITEM Data Character ASCII Audio Input AUDIO 41h 55h 44h 49h 4Fh 0 (Auto), 1 (Audio1), 2 (Audio2), 3 (Audio3), 4 (Mix) Lamp Mode 4Ch 4Dh 0 (Standard), 1 (Low) Standby Mode STBY 53h 54h 42h 59h 0 (LAN), 1 (Low), 2 (Speaker Out), 3 (Monitor Out) Menu Position 4Dh 50h 0 (Upper Left), 1 (Upper Right), 2 (Center),...
  • Page 9: Password Lock Commands

    4.7 Password lock commands The password lock commands control the password lock. The password lock enabling or disabling command is sent with a 4-digit password comprised of any figures 1 to 4 added to the end of the data code. When the password lock is enabled successfully, the projector sends a return command comprising the data code, password.
  • Page 10 5. Execution procedure of RS-232C commands via LAN When the RS-232C command is executed via LAN, 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. ...

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