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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
PC
IN
OUT
(Out)
RS-232C Cable
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.
* In order to function, the RS-232C OUT terminal can only be connected to another monitor of the same model.
Do not connect to other types of equipment.
The following control sequence is used for a single LCD6520L/LCD6520P. To control multiple LCD6520L/LCD6520P monitors
that are daisy-chained together please use the extended control command. Instructions for the extended control command
can be found on the CD included with the display. The file is called "External_control.pdf". When using the following control
commands, all of the daisy-chained monitors can be controlled at the same time from one monitor. Reply and status
commands, however, will only pertain to the primary monitor, not secondary monitors.
1) Interface
PROTOCOL
RS-232C
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.
Address code
HEX
30h 30h
ASCII
'0' '0'
[Address code]
[Function code]
[Data code]
[End code]
MultiSync
RS-232C (IN)
Function code
Data code
Function
Data
Function
Data
30h 30h (ASCII code, '0' '0'), fixed.
A code of each fixed control move.
A code of each fixed control data (number) and not always indicated.
0Dh (In ASCII code, '
English-37
RS-232C (OUT)
RS-232C Cable
End code
0Dh
') fixed.
MultiSync
RS-232C (IN)
RS-232C (OUT)
MultiSync
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