Controlling The Lcd Monitor Via Rs-232C Remote Control - NEC LCD3000 User Manual

Controlling the LCD monitor via RS-232C Remote Control

This LCD monitor can be remote controlled by connecting a computer with RS-232C interface.
The following functions can be controlled by a computer:
• Turn the monitor ON or OFF.
• Changing input signals.
Connection
LCD Monitor + IBM PC or IBM PC compatible
PC or IBM compatible
NOTE: If your PC 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
BAUD RATE
DATA LENGTH
PARITY BIT
STOP BIT
FLOW CONTROL
This LCD monitor uses RXD, TXD and GND lines for RS-232C control.
RS-232C cable should be null modem type.
2) Control command protocol
A command is structured as: address code, function code, data code and end code.
The length of a command is variable, depending on function.
Address code
HEX
30h 30h
ASCII
'0' '0'
[Address code]
[Function code]
[Data code]
[End code]
01_English
RS-232C Cable
RS-232C
9600 [bps]
8 [bits]
NONE
1 [bits]
NONE
Function code Data code
Function Data
Function Data
30h 30h (ASCII code, '0' '0'), fixed.
A defined control code.
A defined value. Not available with all control commands.
0Dh (ASCII code, '
27
to RS-232C terminal
End code
0Dh
'), fixed.
English-27
15/10/02, 12:08 pm