Benq RM5501K, RM6501K, RM7501K, RM8601K RS232/LAN Protocol Installation Guide
RM5501K/RM6501K/RM7501K/RM8601K
RS232/LAN Protocol Installation Guide
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Table of Contents
Introduction ........................................................................................................................... 3
Wire arrangement ......................................................................................................................................................... 3
RS232 pin assignment ................................................................................................................................................... 3
Communication setting ...................................................................................................................................... 4
Command message reference ............................................................................................................................ 4
Connections and communication settings .............................................................................. 4
RS232 serial port with a straight cable ..................................................................................................................... 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 ...................................................................................................................................................... 10
Get-function description ............................................................................................................................................ 10
Get-function format ........................................................................................................................................ 10
PC Get-function command to LCD Monitor ................................................................................................. 15
Date: 2019/03/20
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Introduction
In this document, "PC" represents all the control units that can send or receive the RS232 protocol command.
Wire Arrangement
P1
Color
P2 1 Black
1 2 Brown
3
3
Red
2 4 Orange
4 5 Yellow
5
6
Green
6
7
Blue
7 8 Purple
8
9
Gray
9
Case
Drain wire
Case
Pin
Description
Pin
Description
1
NC
2
RXD
3
TXD
4
NC
5
GND
6
NC
7
RTS
8
CTS
9
NC
Use of crossover (null modem) cable requires use with PC.
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 pin assignment
3
Communication setting
PC or laptop
D-Sub port (male or female)
on a display
D-Sub 9 pin
(female)
D-Sub 9 pin
(male)
Communication cable (straight)
D-Sub 9 pin
Baud rate select: 38400bps (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 with a straight cable
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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"
TV ID
Identification for each of TV
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
Value [1~3]
Three bytes ASCII that defines the value
CR
0x0D
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
D-Sub 9 pin
PC or laptop
IP Procotol Port: 4660
RS232 via HDBaseT
Protocol Command Description
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Set-function listing
Item
Description
Length
Total Bytes of Message excluding "CR"
TV ID
Identification for each of TV
TV ID is “01” for LAN 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
CR
0x0D
Name
Length
ID
Command
type
Command
Value1
Value2
Value3
CR
Byte count
1 Byte
2 Byte
1 Byte
1 Byte
1 Byte
1 Byte
1 Byte
1 Byte
Bytes
order
1
2~3 4 5 6 7 8 9
Name
Length
ID
Command
type
CR
Byte count
1 Byte
2 Byte
1 Byte
1 Byte
Bytes
order
1
2~3 4 5
Name
Length
ID
Command
type
Command
Value1
Value2
Value3
CR
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 for TV-02 and this command is valid.
Send (Hex Format)
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