| Possible reason: | 
The following are possible symptoms of camera connection abnormalities:
 1)System delay 
2)Camera Error 
3)USB Port abnormal in IPC 
4)J1-J3 Cable abnormal 
5)J3-J4 Cable abnormal 
6)J4~IO module  Cable abnormal 
7)Robot Cable abnormal 
8)IPC internal USB connection abnormal  | 
Common error code
 0x00020000 
0x00020007  |