HOW TO USE EXTERNAL CONTROL
(contOd)
7HOW TO USE THE RS-232C TERMINAL
You can control the monitor from your PC via the RS-232C terminal.
5
For details on operating the monitor from the PC, consult your dealer or service centre for details.49
38
7
1. Cable26
Prepare a straight cable with a D-sub connector (9-pin, female) and a D-sub1
connector (9-pin, male).
Pin No.Signal
2. Communications Specifications
1DCD (Data Carrier Detect)
Baud Rate: 4800/9600/19200 (factory pre-set; 4800)
Data Bits: 8 bits2RD (Receive Data)
Parity: No parity3TD (Transmit Data)
Stop Bits: 1
Flow Control : Hardware (RTS/CTS)4DTR (Data Terminal Ready)
5GND (Ground)
3. Commands
6DSR (Data Set Ready)
Format
7RTS (Request To Send)
HeaderIDCommandDataCR8CTS (Clear To Send)
9RI (Ring Indication)
Header
!Control from the PC to the monitor
? Reference from the PC to the monitor
@ Answer from the monitor to the PC
ID + Command + Data
BBasic commandCharacters00, 01 or No data
DCommand for adjusting the picture size00 ~ 08�20 ~ +20 or �31 ~ +31
SCommand for adjusting the picture quality00 ~ 05�20 ~ +20
MCommand for selecting the menu item00 ~ 0E00, 01, 10, 11
FCommand for selecting the menu item00 ~ 0A00, 01
WCommand for adjusting the white balance00 ~ 05�256 ~ +255
CCommand for inquiring for the monitorOs status000 ~ 655
During Communication from the PC to the Monitor
The monitor receives the data when DSR remains ON (high) and CTS is set to ON.
During Communication from the Monitor to the PC
The monitor sends the data when both DSR and DCD are set to ON and RTS is set to ON.
Communication Procedures
The following is the communication procedures.
1. Starting the communication
Receives the connection command (!BCN1Cr) from the PC Sends the monitorOs status (@BOKCr) to the PC
2. Performing the external control
Receives the control command (!XXXXCr) from the PC Sends the monitorOs status (@BOKCr) to the PC
* The monitor repeats these receiving and sending if necessary.
3. Terminating the communication
Receives the termination command (!BCN0Cr) Sends the monitorOs status (@BOKCr) to the PC
* After sending the data to the monitor, the PC must first receive the data from the monitor and then send the next command
because the communication is performed in a hand-shake system. If the PC does not receive the status from the monitor after
sending the command, re-send the command.
22
LCT1464-001A_EN_22-27-62203.9.19, 14:45 |