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User Manual
DLP
Projector
EX320U/EW330U/EX320U-ST/EX321U-ST/EW331U-ST
Controlling the projector using a personal computer
This projector can be controll ed by connecting a pe rsonal 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
RS-232C
terminal
Important:
•
Connect the computer with the projector on a one-to-one basis.
•
Make sure that your computer and projector are turned o 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.
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.
RS-232C cable
D-SUB 9-pin
Pin
Description
2
RXD
4
NC
6
NC
8
CTS
RS-232C
9600 [bps]
8 [bits]
NONE
1 [bit]
NONE
D-SUB 9-pin
1
2
6
1
SERIAL
3
4
5
7
8
9
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Summary of Contents for Mitsubishi Electric DLP EX320U
- Page 1 Projector EX320U/EW330U/EX320U-ST/EX321U-ST/EW331U-ST Controlling the projector using a personal computer This projector can be controll ed by connecting a pe rsonal 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 •...
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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 com- mand 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 au to positioning (Values enclosed in quotation marks are ASCII codes.):...
- Page 4 [RS-232C control flowchart] START Sending out command No response for No NAK returned 1 second 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.
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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. Function ITEM Note Character ASCII POWER ON This command is invalid during cooling after the power is turned off. -
Page 6: Function Commands
4.3 Remote commands (Not executable in stand-by mode.) The remote commands allow the computer to control the projector in the same way as by the remote control. (Some operations cannot be controlled.) The remote commands have no data codes. Function Button’s name on remote Character ASCII...