Philips BDH5011-74B User Manual

Page 20

7.6 RS-232 Remote Control
Connections

RS-232 Serial Terminal Overview

This display is equipped with an RS-232 serial
terminal for using the display with computer
controls.The RS-232 serial terminal conforms to
the RS-232C interface specification.The
computer will require software application (such
as programming language software) which allows
the computer to send and receive control data
that can support the communications parameter
listed below.

Communications Parameters

These parameters are required to setup
communications with the display.
Specification:

RS-232C

Sync Method:

Synchronous

Baud Rate:

9600 bps

Parity:

None

Character:

Length 8 Bits

Stop Bit:

1 Bits

Pin Layout for RS-232 Terminal
The RS-232C terminal pin layout are as follows:
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

Basic Format for Command Parameters
In order to transmit data from the computer to
the display, the data must be sent in 1-byte-hex
format.
The command code (see table below) must first
be sent to the display, followed by the desired
value setting in hexadecimal format.
The following is an example of a sequence to
change the displays input to RGB:
Step 1: Send 1-byte for command 91 (input

select) to the display in hex format 0x91

Step 2: Send 1-byte for the value of the RGB

input. In this example, send 0x06.

Step 3: The display will then respond back to

the PC with a 1-byte value to confirm
the setting.

RS-232

User Manual BDH5011