Mitsubishi Electric MDT42IS Manual Del Usuario página 39

Controlling the LCD monitor via RS-232C/RS-485 Remote Control
This LCD monitor can be controlled by a personal computer connected with an RS-232C cable or a CAT5 cable via the CAT5 Tx
BOX (option) and CAT5 Rx BOX (option).
Functions that can be controlled by the personal computer are:
• Power ON or OFF
• Switching between input signals
Connection
Connection by RS-232C (For RS-232C cable, the reverse type cable should be used.)
PC
RS-232C cable
Connection by CAT5 RS-485 (For CAT5 cable, the straight type cable should be used)
Type A
USB cable
To RS-232C
PC
RS-232C cable
This connection isn't necessary when the USB COM port is used.
NOTE:
If your PC (IBM or IBM compatible) is equipped only with a 25-pin serial port connector, a 25-pin serial port adapter is required.
Contact your dealer for details.
1) Interface
PROTOCOL RS-232C/RS-485 (CAT5)
BAUD RATE 9600 [bps]
DATA LENGTH 8 [bits]
PARITY BIT NONE
STOP BIT 1 [bits]
FLOW CONTROL NONE
This LCD monitor uses RXD, TXD and GND lines for RS-232C control.
2) Control command diagram
The command is structured by the address code, function code, data code and end code. The length of the command is
different for each function.
NOTE:
The example below shows basic commands used for the confi guration consisting of one computer and one monitor (one-to-
one connection). For commands to control multi-connected monitors, contact your dealer in advance.
Address code
HEX
30h 30h
ASCII
'0' '0'
[Address code] 30h 30h (In ASCII code, '0' '0') fi xed.
[Function code] A code of each fi xed control move.
[Data code] A code of each fi xed control data (number) and not always indicated.
[End code] 0Dh (In ASCII code, '
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Monitor
To RS-232C IN To RS-232C OUT
CAT5 Tx BOX
Type B
(option)
To CAT5
IN OUT
CAT5 cable
Function code Data code
Function Data
Function Data
' ) fi xed.
English-35
Monitor
To RS-232C IN
RS-232C cable
Monitor with CAT5 Monitor with CAT5
Rx BOX (option)
To CAT5 To CAT5 To CAT5
RGB5 IN OUT RGB5 IN
CAT5 cable
End code
0Dh
To RS-232C OUT
Rx BOX (option)
To CAT5
OUT