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Appendix 3: RS-485 Command Set
The texts of Data 0, 1 is in ASCII code format (Normal Command)
Command OP_code Data 0,1
Note
Channel select “01” ~ ”0G” Channel 1~16
Right “MR”
Screen mode select
Left “ML”
Detail setting must
reference User’s manual
Sequence “S1” ~ ”S3” Sequence 1~3
Up key “DU”
Down key “DD”
Left key “DL”
Right key “DR”
Zoom/Enter “DZ”
Play key “KV”
Freeze/Pause “KA”
Set “KS”
ESC “KE”
List “KL”
Date/Time “SD”
Title “ST”
Menu “SP”
Key Lock “SK” Lock/ Un_Locked
Goto “SR”
Fast Rewind “RW” x1,x2,x4,x8
Fast Forward “FF” x1,x2,x4,x8
Universal End
A0H
“UE”
Goto Time1 BDH Data1, Data0 Year & Month
Goto Time2 BEH Data1, Data0 Day & Hour
Goto Time3 BFH Data1, Data0 Minute & “G”
PS: Goto Time1: Year=00~99 (it means 2000~2099); Month=01~12
Goto Time2: Day=01~31; Hour=00~23
Goto Time3: Minute=00~59; “G” ASCII=47H
Example:
If the Keyboard ID is 00H, the DVR-16/IP ID is E0H.
If you want to select camera 0 on the main monitor, you can use ‘01’ command.
(The ASCII Code of ‘01’ is 30H & 31H.)
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6
Receiver ID
Transmitter
ID
OP Code Data0 Data1 Checksum
E0H 00H A0H 30H 31H 41H
NOTE:
1. The time interval between byte and byte must be shorter than 2ms, and the time interval
between 2 commands (6 bytes/command) must be longer than 2ms.
2. Checksum = Byte1 .xor. Byte2 .xor. Byte3 .xor. Byte4 .xor. Byte5