Benq PL490, PL552, PL553, PH5501, PH5502 RS232 & LAN Protocol Installation Guide

PL490/PL552/PL553/PH5501/PH5502 RS232 & LAN Protocol Installation Guide

Table of Contents

Introduction ....................................................................................................................................................... 3

Wire arrangement ...................................................................................................................................... 3

Communication setting ........................................................................................................................ 4

Command message reference .............................................................................................................. 4

Connections and communication settings ......................................................................................................... 4

RS232 serial port connection ...................................................................................................................... 4

RS232 via LAN ............................................................................................................................................. 5

RS232 via HDBaseT ..................................................................................................................................... 5

Protocol Command Description ......................................................................................................................... 5

Set-function listing ...................................................................................................................................... 6

Set-function description ............................................................................................................................. 6

Set-function format ............................................................................................................................. 6

Set-function table ................................................................................................................................ 8

Get-function listing ................................................................................................................................... 13

Get-function description ........................................................................................................................... 13

Get-function format .......................................................................................................................... 13

PC Get-function command ................................................................................................................ 15

Introduction

In this document, "PC" represents all the control units that can send or receive the RS232 protocol command.

D-sub-9

Signal Direction

Signal Name

x Protective Ground

DTE-to-DCE

Transmitted Data

DCE-to-DTE

Received Data

DTE-to-DCE

Request To Send

DCE-to-DTE

Clear To Send

DCE-to-DTE

Data Set Ready

Signal Ground

DCE-to-DTE

Received Line Signal Detector (Carrier Detect)

DTE-to-DCE

Data Terminal Ready

DCE-to-DTE

Ring Indicator

Date: 2019/03/22

This document describes the hardware interface spec and software protocols of RS232 interface communication between Commercial Display and PC or other control unit with RS232 protocol.

This set protocol allow users to assign the ID in the command to control the specify ID monitor. The set protocol contains two sections command: Set-Function and Get-Function

Wire arrangement

RS232 In/Out: 2.5mm phone jack and support below cable

DB-9 connector pin assignment (P1):

Communication setting

Baud rate select: 9600bps (fixed)/ Data bits: 8 bits (fixed)

Parity: None (fixed)/ Stop Bits: 1(fixed)

Command message reference

PC sends to Monitor command packet followed by "CR". Every time PC sends control command to the Monitor, the Monitor shall response as follows:

1. If the message is received correctly, it will send "+" (02Bh) followed by "CR" (00Dh).

2. If the message is received incorrectly, it will send "-" (02Dh) followed by "CR" (00Dh).

Connections and communication settings

Choose one of the connections and set up properly before RS232 control.

RS232 serial port connection

RS232 via LAN

Find the Wired LAN IP address of the connected display from the OSD menu and make sure the display and the computer are within the same network.

Item

Description

Length

Total Bytes of Message excluding "CR"

Display ID

Identification for each display

Display ID is “01” for LAN control & RS232 control

Command Type

Identify command type,

"s" (0x73h): Set Command

"g" (0x67h): Get Command "r"

(0x72h): Reply Command

"+" (0x2Bh): Valid command Reply "-" (0x2Dh): Invalid command Reply

Command

Function command code: One byte ASCII code

D-Sub 9 pin

PC or laptop

LAN cable

RJ45 port on a display

HDBaseT compatible device

D-Sub 9 pin

RJ45

RJ45 port on a display

LAN cable

PC or laptop

IP Protocol Port: 4660

RS232 via HDBaseT

Protocol Command Description

Value [1~3]

Three bytes ASCII that defines the value

0x0D

Set-function listing

Item

Description

Length

Total Bytes of Message excluding "CR"

Display ID

Identification for each display

Display ID is “01” for LAN control & RS232 control

Command Type

Identify command type, "s"

(0x73h): Set Command

Command

Function command code: One byte ASCII code

Value [1~3]

Three bytes ASCII that defines the value

0x0D

Name

Length

Command type

Command

Value1

Value2

Value3

Byte count

1 Byte

2 Byte

1 Byte

Bytes order

2~3 4 5 6 7 8 9

Name

Length

Command type

Byte count

1 Byte

2 Byte

1 Byte

Bytes order

2~3 4 5

Name

Length

Command type

Command

Value1

Value2

Value3

Hex

0x38

0x30 0x31

0x73

0x24

0x30

0x37

0x36

0x0D

Name

Length

Command type

Hex

0x34

0x30 0x31

0x2B

0x0D

The PC can control the LCD Monitor for specific actions. The Set-Function command allows you to control the LCD monitor behavior in a remote sit through the RS232 port. The Set-Function packet format consists of 11 bytes.

Set-function description

Set-function format

Send: (Command Type="s")

Reply: (Command Type="+" or "-")

Example 1: Set Brightness as 76 and this command is valid.

Send (Hex Format)

Reply (Hex Format)

Example 2: Set Brightness as 176 and this command is NOT valid.

Name

Length

Command type

Command

Value1

Value2

Value3

Hex

0x38

0x30 0x31

0x73

0x24

0x31

0x37

0x36

0x0D

Name

Length

Command type

Hex

0x34

0x30 0x31

0x2D

0x0D

Name

Length

Command type

Command

Value1

Value2

Value3

Hex

0x38

0x30 0x31

0x73

0x39

0x30

0x35

0x30

0x0D

Name

Length

Command type

Hex

0x34

0x30 0x31

0x2D

0x0D

Name

Length

Command type

Command

Value1

Value2

Value3

Hex

0x38

0x30 0x31

0x73

0x39

0x31

0x35

0x0D

Name

Length

Command type

Hex

0x34

0x30 0x31

0x2D

0x0D

Send (Hex Format)

Reply (Hex Format)

Example 3: Set Balance as 50 this command is valid.

Send (Hex Format)

Reply (Hex Format)

Example 4: Set Balance as 115 this command is Not valid.

Send (Hex Format)

Reply (Hex Format)

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