三星 SMARTDOME CAMERA 协议
1. PROTOCOL
Data Communication : RS485, Start-Stop Synchronized serial interface(TD+ TD-)
Protocol : 8bit data ,1 Stop bit, None Parity
Transmission speed : 4800, 9600, 19200, 38400 bps
2. Data Format
9 Byte Fixed
Data Byte
Type
Contents
Remarks
Byte 1
Start Code
A0H
Data Packet Starting
Point
Byte 2
Sender Addr
Sender address
*Samsung WebTX: FEH
Byte 3
Target Addr
Target address
Byte 4
*Camera Adjustment:
00H
(Factory Use Only)
Pan/Tilt Command: 01H
System Command: 03H
Byte 5
Byte 6
Byte 7
Byte 8
Command
Byte 9
Check Sum
LSB* of (FFFFH - ( Sum from Byte2 to Byte8))
格式如下：
Start Code
A0H(1)
Sender
Addr(1)
Target
Addr(1)
Command (5)
Check
sum
(1)
Byte1 Byte2 Byte3 Byte 4 ~ 8 Byte 9
LSB : Less Significant Byte
