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Mitsubishi Electric UL7400U Manual

Controlling the projector via rs-232c connection
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LCD Projector

UL7400U
Controlling the projector via RS-232C connection
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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  • Page 1: Table Of Contents

    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.

  • Page 2: Introduction

    • 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.)

  • Page 3: 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 code ‘30h’ ‘30h’ Function Data ‘3Ah’...
  • Page 4 • 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.
  • Page 5 [RS-232C control flowchart] START Sending out command No response for No NAK returned 3 seconds or longer Awaiting response from projector NAK returned Command is sent successfully. Command is sent successfully. Command sending fails. Command is executed successfully. Command execution fails. Check the following.

  • Page 6: Execution Procedure Of Rs-232C Commands Via Lan

    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.

  • Page 7: Command List

    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.) Function ITEM...

  • Page 8: Read Commands For Other Information

    5.2.3 Read commands for other information Use the following commands to obtain other information. Function ITEM 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...

  • Page 9: Remote Control Key Commands

    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.

  • Page 10: Direct Commands

    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.

  • Page 11: Menu Setting Commands

    5.6 Menu setting commands (Not executable in stand-by mode except some commands. Possible only to read during BLANK except some commands.) The menu setting commands are used for the menu setting of this projector. If the personal computer sends the command without attaching the data code, the projector attaches to the received command its current setting value as the data code and send it back to the PC.

  • Page 12: Feature Menu

    5.6.3 FEATURE menu Function ITEM Data Character ASCII code ASPECT 53h 43h 0 (NORMAL), 1 (16:9), 2 (REAL), 3 (FULL) ASPECT-16:9-MODE 53h 43h 4Dh 0 (ALL SIGNALS), 1 (VIDEO ONLY) SCREEN 53h 43h 52h 0 (16:10), 1 (16:9) PROJECTOR ID 50h 49h 44h 00 (ALL), 01 to 63 PASSWORD FUNCTION...

  • Page 13: Network Menu

    5.6.5 NETWORK menu Function ITEM Data Character ASCII code PROJECTOR NAME NAME 4Eh 41h 4Dh 45h Up to 15 single-byte alphanumeric characters NETWORK RESTART NRCN 4Eh 52h 43h 4Eh • Some commands are not executed depending on the input signal. The operational restrictions same as those on the menu setting are applied.

  • Page 14: Password Lock Commands

    5.7 Password lock commands The password lock commands control the password lock. The password lock enabling or disabling command is sent with a 4 to 8-digit password comprised of any figures 1 to 4 added to the end of the data code. When the password lock is enabled or disabled successfully, the projector sends a return command comprising the data code, password, and “1”...

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