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Chapter 6 Appendix
The camera could be controlled through RS232/RS485 interface; RS232C serial parameter are as follows:
Baud rate: 2400/4800/9600/115200 bits / sec; Start bit: 1; data bits: 8; Stop bit: 1; Parity: None.
After power on, the camera first goes left, then back to the middle position. Self-test is finished after the zoom
moved to the farthest and then back to the nearest position. If the camera saved 0 preset before, it will be back
to that position after initialization. At this point, the user can control the camera by the serial commands.
6.1 VISCA Protocol List
6.1.1 Camera Return Command
Ack/Completion Message
Command packet
Note
ACK
z0 41 FF
Returned when the command is accepted.
Completion
z0 51 FF
Returned when the command has been executed.
z = camera a 8
Error Messages
Command packet
Note
Syntax Error
z0 60 02 FF
Returned when the command format is different or when a
command with illegal command parameters is accepted
Command Not Executable
z0 61 41 FF
Returned when a command cannot be executed due to current
conditions. For example, when commands controlling the focus
manually are received during auto focus.
6.1.2 Camera Control Command
Command
Function
Command packet
Note
AddressSet
Broadcast
88 30 0p FF
p
：
Address setting
IF_Clear
Broadcast
88 01 00 01 FF
I/F Clear
CommandCancel
8x 21 FF
CAM_Power
On
8x 01 04 00 02 FF
Power ON/OFF
Off
8x 01 04 00 03 FF
CAM_Zoom
Stop
8x 01 04 07 00 FF
Tele(Standard)
8x 01 04 07 02 FF
Wide(Standard)
8x 01 04 07 03 FF
Tele(Variable)
8x 01 04 07 2p FF
p = 0(low) - F(high)
Wide(Variable)
8x 01 04 07 3p FF
Direct
8x 01 04 47 0p 0q 0r 0s FF
pqrs: Zoom Position
CAM _Focus
Stop
8x 01 04 08 00 FF
Far(Standard)
8x 01 04 08 02 FF
Near(Standard)
8x 01 04 08 03 FF
Far(Variable)
8x 01 04 08 2p FF
p = 0(low) - F(high)
