Philips BDH4222V/00 ユーザーズマニュアル

This monitor is equipped with an RS-232 serial terminal for using the 
monitor with computer controls. The RS-232 serial terminal conforms 
to the RS-232C interface specification. The computer requires a 
software application (such as programming language software) which 
allows the computer to send and receive control data that supports the 
communications parameters listed below.

These parameters are required to setup communications with the 
monitor.

The RS-232C terminal pin layout are as follows:

In order to transmit data from the computer to the monitor, the data 
must be sent in 1-byte-hex format.

The command code (see page 25) must first be sent to the monitor, 
followed by the desired value setting in hexadecimal format. 
The steps below show an example of how the monitor input can be 
changed to RGB:

1

Send 1-byte for command 91 (input select) to the monitor in hex 
format 0x91.

2

Send 1-byte for the value of the RGB input. In this example, send 
0x06.

3

The monitor will then respond back to the PC with a 1-byte value to 
confirm the setting.

●

To connect a PC to the monitor's RS-232 port, you must use a 
"straight-thru" RS-232 cable where pins 2 (RX) and 3 (TX) are not 
reversed at one end.

●

If there are no data to be sent, then the parameter signal does not 
need to be sent.

Specification

RS-232C

Sync Method

Synchronous

Baud Rate

9600 bps

Parity

None

Character Length

8 Bits

Stop Bit

1 Bits

Pin 1

Received Line Signal Detector (Data Carrier Detect)

Pin 2

Received Data (RXD)

Pin 3

Transmit Data (TXD)

Pin 4

Data Terminal Ready (DTR)

Pin 5

Signal Ground

Pin 6

Data Set Ready (DSR)

Pin 7

Request To Send (RTS)

Pin 8

Clear To Send (CTS)

Pin 9

Ring Indicator