Image Acquisition Control AW0009760300066 Basler aviator GigE7.3 The Acquisition Start TriggerWhen reading this section, it is helpful to refer to Figure 20 on page 61.The acquisition start trigger is used in conjunction with the frame start trigger to control theacquisition of frames. In essence, the acquisition start trigger is used as an enabler for the framestart trigger. Acquisition start trigger signals can be generated within the camera or may be appliedexternally as software or hardware acquisition start trigger signals.When the acquisition start trigger is enabled, the camera’s initial acquisition status is "waiting foracquisition start trigger". When the camera is in this acquisition status, it will ignore any frame starttrigger signals it receives. If 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. In this acquisition status, the camera can react to frame start trigger signals andwill begin to expose a frame each time a proper frame start trigger signal is applied.A primary feature of the acquisition start trigger is that after an acquisition start trigger signal hasbeen applied to the camera and the camera has entered the "waiting for frame start trigger"acquisition status, the camera will return to the "waiting for acquisition start trigger" acquisitionstatus once a specified number of frame start triggers has been received. Before more frames canbe acquired, a new acquisition start trigger signal must be applied to the camera to exit it from"waiting for acquisition start trigger" status. Note that this feature only applies when the TriggerMode parameter for the acquisition start trigger is set to on. This feature is explained in greaterdetail in the following sections.7.3.1 Acquisition Start Trigger ModeThe main parameter associated with the acquisition start trigger is the Trigger Mode parameter. TheTrigger Mode parameter for the acquisition start trigger has two available settings: off and on.7.3.1.1 Acquisition Start Trigger Mode = OffWhen the Trigger Mode parameter for the acquisition start trigger is set to off, the camera willgenerate all required acquisition start trigger signals internally, and you do not need to applyacquisition start trigger signals to the camera.7.3.1.2 Acquisition Start Trigger Mode = OnWhen the Trigger Mode parameter for the acquisition start trigger is set to on, the camera will initiallybe in a "waiting for acquisition start trigger" acquisition status and cannot react to frame start triggersignals. You must apply an acquisition start trigger signal to the camera to exit the camera from the"waiting for acquisition start trigger" acquisition status and enter the "waiting for frame start trigger"acquisition status. The camera can then react to frame start trigger signals and will continue to doso until the number of frame start trigger signals it has received is equal to the current Acquisition
