Quantum Composers AF910 - Manual (Page 27)

AF910 Manual Version 1.4 Page 27
If a control command is received while the device is in the midst of executing a previous
command, and the commands are mutually exclusive (cannot be executed in parallel),
then the previous command is aborted and the new one executed. It is up to the host
controller (the PC) to poll the device and make sure the previous command is finished, if
that is the needed.
Query Commands
Query commands return a value to the PC as soon as the command is parsed and
executed. The value returned will depend on the command. The response is always
terminated with a . If a query command is not recognized by the device, then a "?0"
is returned.
Common Commands
All devices are required to support some common commands as part of their command
set. Those commands are:
Command Description
VN Return firmware version number
RS Reset, return to power-up defaults.
Global Commands
By using a special prefix (the * character), it is possible to send a command to all the
devices at once. When a global command is sent, no device will send a response.
Command Description
*RS Reset, return to power-up defaults. All
devices
Auto Focus Command Set
AE #
Autofocus Enable. Enables or disables the auto focus process. A
“1” enables auto focus (not the motor) and a “0” disables it. A “?”
will return the current state.
AM #, AM?
Auto Motor Enable. Enables or disables the automatic movement
of the motor to find the focus. A “1” enables it (default) and a “0”
disables it. A “?” will return the current state.
AS ####, AS?
Analog Scalar. This parameter will effectively scale the amplitude
of the ±10V analog output when inside of the docking range. The
default scalar is 1. The higher the number, the steeper the slope
will be. Values are from 0x0001 to 0x000A. A “?” will return the
current value. This is an objective specific parameter.