436-0100-01-10, Rev. 200  Duo User Guide 
Information on this page is subject to change without notice 
 
 
 
CRC1  / Reserved :  Reserved  field. In CSP-UART applications,  for CRC check  (from  the  beginning  of  the  code,  the checksum  is  calculated using  the CRC16-
CCITT standard in bytes 1 to 6 ); this field can be ignored in CSP-TCP applications           
message body: see the next chapter         
CRC2  / Reserved :  Reserved  field. In CSP-UART applications,  a CRC check  (identification  code  from  the  beginning,  in  bytes .  1  ~ N  + .  8 ) using CRC16-
CCITT standard checksum calculation ); in CSP-TCP applications can ignore this field           
 
[Comment]: CRC16 polynomial = x 
16 
+ x 
12 
+ x 
5 
+1   
 
 
Status Code  
The instruction number is incorrect 
The file could not be found 
The device is busy and can not respond 
6000 , TCP short connection for camera control and parameter configuration, and 
other messages 
6002 , TCP long connection for camera event notification 
【Note】: 
              Equipment as a server, network communication are used TCP request - response mode.