Regular Line Acquisition Avoiding Overtriggering - Basler Racer User Manual

AW00118508000
ExLSTrig
Signal
Exposure
Fig. 25: Extension of Exposure N+1 After the Illegal Attempt of Ending It Too Early; Applies to Trigger Width
Exposure Mode Only
6.2.1.2

Regular Line Acquisition Avoiding Overtriggering

As mentioned above, you can avoid overtriggering by applying an acquisition-related trigger only
when the camera is waiting for it.
You can achieve this goal by
making use of acquisition monitoring tools, i.e. monitoring the camera's acquisition status and

triggering only when the camera indicates that it is in the "waiting status" for the trigger or by
strictly obeying timing limits for exposure and triggering.

Using Acquisition Monitoring Tools
To get informed whether the camera is waiting for a trigger you can use the acquisition monitoring
tools described in Section 6.3 on
By applying an ExLSTrig signal as soon as the camera indicates that it is waiting for an ExLSTrig
signal you can operate the camera in "overlapped mode" without overtriggering.
As an example, and in the context of overlapped exposure, the use of the line trigger wait signal is
described in Section 6.3.3 on
trigger width exposure mode are considered.
Basler racer Camera Link
Line Acquisition N
Readout
Time
page 80.
page 82 for proper triggering with the line start trigger. Both timed and
The ExLSTrg Signal goes low too early because
readout of the previous acquisition is not yet
finished. An overtrigger will be reported.
The exposure is ended with the next valid
attempt to end it.
Line Acquisition N+1
Exposure
Acquisition Control
Readout
75