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MITSUBISHI ELECTRIC MDT321S User Manual

Page 30

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English-28

Controlling the LCD monitor via RS-232C Remote Control

This LCD monitor can be controlled by connecting a personal computer with a RS-232C terminal.

Functions that can be controlled by a personal computer are:

Power ON or OFF

Switching between input signals

Connection

LCD Monitor + PC

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.

* RS-232 OUT terminal can connect to MDT321S only. Do not connect to other equipment.

1) Interface

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.

[Address code]

30h 30h (ASCII code, '0' '0'), fixed.

[Function code]

A code of each fixed control move.

[Data code]

A code of each fixed control data (number) and not always indicated.

[End code]

0Dh (In ASCII code, '

') fixed.

PROTOCOL

RS-232C

BAUD RATE

9600 [bps]

DATA LENGTH

8 [bits]

PARITY BIT

NONE

STOP BIT

1 [bits]

FLOW CONTROL

NONE

Address code

Function code

Data code

End code

HEX

30h 30h

Function

Data

0Dh

ASCII

'0' '0'

Function

Data

RS-232C Cable