Serial communication control 37
Serial communication control
Under common working condition, the camera could be controlled through RS232/
RS485 interface (VISCA); 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 go 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.
VISCA protocol list
Camera return command
z = camera address + 8
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.
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.
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