Acquiring Images By Applying A Series Of Hardware Trigger Transitions - Basler Pioneer User Manual

For more information about the pylon Viewer, see Section 2.2 on
page 40.
For more information about the Trigger Ready signal, see Section 10.6 on
For more information about the camera's exposure time parameter, see Section 10.4 on
10.3.4 Acquiring Images by Applying a Series of
Hardware Trigger Transitions
You can set the camera so that it will react to a continuous series of external hardware trigger
(ExTrig) transitions and then you can cycle the ExTrig signal as desired to begin image acquisition.
When you are using an ExTrig signal to start image acquisition, you should monitor the camera's
trigger ready (TrigRdy) output signal and you should base the use of your ExTrig signal on the state
of the trigger ready signal.
To set the camera to react continuously to ExTrig signal transitions, follow the sequence below. The
sequence assumes that you have set the camera for rising edge triggering and for the timed
exposure mode.
1. Access the camera's API and set the exposure time parameters for your desired exposure
time.
2. Set the value of the camera's Acquisition Mode parameter to Continuous.
3. Execute an Acquisition Start command. This prepares the camera to react to the trigger
signals.
4. Check the state of the camera's Trigger Ready signal:
a. If the TrigRdy signal is high, you can transition the ExTrig signal when desired.
b. If the TrigRdy signal is low, wait until TrigRdy goes high and then transition the ExTrig signal
when desired.
5. When the ExTrig signal transitions from low to high, image acquisition will start. Exposure will
continue for the length of time you specified in step 1.
6. At the end of the specified exposure time, readout and transmission of the acquired image will
take place.
7. Repeat steps 4 and 5 each time you want to start another image acquisition.
8. Execute an Acquisition Stop command. The camera will no longer react to hardware triggers.
If you are acquiring images using a series of hardware trigger transitions, you must avoid acquiring
images at a rate that exceeds the maximum allowed with the current camera settings. You can
avoid triggering image acquistion at too high a rate by using the trigger ready signal as described
above.
Basler pioneer
Image Acquisition Control
page 20 and Section 2.4 on
page 132.
page 127.
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