Rs232 Command Table - ViewSonic CDE6501LED User Manual

Other Information

RS232 Command Table

1. Introduction
This document describes the hardware interface spec and software protocols of RS232 interface
communication between Viewsonic LED Display and PC or other control unit with RS232 protocol.
The protocol divide into three sections:
• Set-Function
• Get-Function
• Remote control pass-through mode
※ In below document, "PC" will represents all the control units that can sent or receive the RS232
protocol command.
2. Description
Hardware specification
Viewsonic LCD communication port in the rear side
(1) Connector type: 3.5 Mini Jack
(2) Pin Assignment
Pin # Signal
1 GND
2 R
3 L
*Use of crossover (null modem) cable required for use with PC
Communication Setting
- Baud Rate Select:
- Data bits:
- Parity:
- Stop Bits:
Command Message Reference
PC sends to Display command packet followed by "CR". Every time PC sends control command to
the Display, the Display shall response as follows:
1. If the message is receives correctly it will send "+" (02Bh) followed by "CR" (00Dh)
2. If the message is receives incorrectly it will send "-" (02Dh) followed by "CR" (00Dh)
(Continued)
Remark
Ground
Input to LCD Display
Output from LCD Display
9600bps (fixed)
8bits (fixed)
None (fixed)
1(fixed)
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