Basler scout GigE User Manual

Image Acquisition Control AW00011916000
106 Basler scout GigE
Acquisition Start and Stop Commands and the Acquisition Mode
The Acquisition Start command prepares the camera to acquire frames. The camera cannot acquire
frames unless an Acquisition Start command has first been executed.
A parameter called the Acquisition Mode has a direct bearing on how the Acquisition Start
command operates.
If the Acquisition Mode parameter is set to "single frame", you can only acquire one frame after
executing an Acquisition Start command. When one frame has been acquired, the Acquisition Start
command will expire. Before attempting to acquire another frame, you must execute a new
Acquisition Start command.
If the Acquisition Mode parameter is set to "continuous frame", an Acquisition Start command does
not expire after a single frame is captured. Once an Acquisition Start command has been executed,
you can acquire as many frames as you like. The Acquisition Start command will remain in effect
until you execute an Acquisition Stop command. Once an Acquisition Stop command has been
executed, the camera will not be able to acquire frames until a new Acquisition Start command is
executed.
Acquisition Start Trigger
The acquisition start trigger is essentially an enabler for the frame start trigger.
The acquisition start trigger has two modes of operation: off and on.
If the Trigger Mode parameter for the acquisition start trigger is set to off, the camera will generate
all required acquisition start trigger signals internally, and you do not need to apply acquisition start
trigger signals to the camera.
If the Trigger Mode parameter for the acquisition start trigger is set to on, the initial acquisition status
of the camera will be "waiting for acquisition start trigger" (see Figure 46 on page 107). When the
camera is in this acquisition status, it cannot react to frame start trigger signals. When an acquisition
start trigger signal is applied to the camera, the camera will exit the "waiting for acquisition start
trigger" acquisition status and enter a "waiting for frame start trigger" acquisition status. The camera
can then react to frame start trigger signals. The camera will continue to react to frame start trigger
signals until the number of frame start trigger signals it has received is equal to an integer parameter
setting called the Acquisition Frame Count. At that point, the camera will return to the "waiting for
acquisition start trigger" acquisition status and will remain in that status until a new acquisition start
trigger signal is applied.
As an example, assume that the Trigger Mode parameter is set to on, the Acquisition Frame Count
parameter is set to three, and the camera is in a "waiting for acquisition start trigger" acquisition
status. When an acquisition start trigger signal is applied to the camera, it will exit the "waiting for
acquisition start trigger" acquisition status and enter the "waiting for frame start trigger" acquisition
status. Once the camera has received three frame start trigger signals, it will return to the "waiting
for acquisition start trigger" acquisition status. At that point, you must apply a new acquisition start
trigger signal to the camera to make it exit "waiting for acquisition start trigger".
Frame Start Trigger
Assuming that an acquisition start trigger signal has just been applied to the camera, the camera
will exit from the "waiting for acquisition start trigger" acquisition status and enter a "waiting for
frame start trigger" acquisition status. Applying a frame start trigger signal to the camera at this point
will exit the camera from the "waiting for frame start trigger" acquisition status and will begin the

Basler scout GigE Specifications

General

Brand	Basler
Model	scout GigE
Category	IP Camera
Language	English