AW00118508000 Acquisition Control
Basler racer Camera Link 57
6.1.2 Line Start with TriggerMode = On
When the trigger mode is set to On, you must select a source signal for the line start trigger.
TriggerSource specifies the source signal. The available selections for TriggerSource are:
Software - When the line start trigger source is set to software, the user triggers line start by
issuing a TriggerSoftware command to the camera from the host computer. Each time a
TriggerSoftware command is received by the camera, the line start trigger will become valid. It
will become invalid during line acquisition and will become valid again when the next
TriggerSoftware command is received and when the camera is ready again for a new line
acquisition.
CC1 - When the source signal is set to CC1, CC2, CC3, or CC4, you apply a line start trigger
signal to the camera by injecting an externally generated electrical signal (a "hardware trigger")
into CC1, CC2, CC3, or CC4 in the Camera Link interface.
If TriggerSource is set to CC1, CC2, CC 3, or CC4, the user must also set the TriggerActivation
parameter. The available settings for the TriggerActivation parameter are:
RisingEdge - specifies that a rising edge of the source signal will start a line acquisition.
FallingEdge - specifies that a falling edge of the source signal will start a line acquisition.
For more information about using a software trigger to control line acquisition start, see
Section 6.1.4 on page 60.
For more information about using a hardware trigger to control line acquisition start, see
Section 6.1.5 on page 64.
Typically, a frame grabber is used to supply an electrical line start signal to CC1,
CC2, CC3, or CC4.
By default, CC1 is selected as the source signal for the line start trigger.
If the TriggerSource parameter is set to CC1, CC2, CC 3, or CC4, the externally
generated electrical signal applied to the selected input line must be held high for
a minimum period for the camera to detect a transition from low to high and must
be held low for a minimum period for the camera to detect a transition from high
to low:
The minimum period is 100 ns if the debouncer is not used.
The minimum period is equal to or larger than the debouncer value if the
debouncer is used.
In all cases, the exposure time for each line must be within the minimum and the
maximum stated in Table 11 on page 65. This is true regardless of the method
used to control exposure.
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