O Control; Configuring Input Lines And Signals; Using The Input Line For Frame Start Triggering; Input Line Debouncers - Basler DART BCON SERIES User Manual

I/O Control
8 I/O Control
8.1

Configuring Input Lines and Signals

8.1.1

Using the Input Line for Frame Start Triggering

The camera is equipped with one input line built into the BCON interface. This line is designated as
CC0 as specified in Section 4.2.1 on
On the camera side, you can select this input to act as the source signal for the frame start trigger
(also known as "hardware triggering").
Whenever a proper electrical signal is applied to the selected line, the camera will recognize the
signal as signal for the frame start trigger.
The electrical signal must be appropriately timed.
For more information, see Section 9.2 on
8.1.2

Input Line Debouncers

The Debouncer feature aids in discriminating between valid and invalid input signals and only lets
valid signals pass to the camera. The debouncer value specifies the minimum time that an input
signal must remain high or remain low in order to be considered a valid input signal.
We recommend setting the debouncer value so that it is slightly greater than the
longest expected duration of an invalid signal.
Setting the debouncer to a value that is
too short will result in accepting invalid signals.

too long will result in rejecting valid signals.

The debouncer delays a valid signal between its arrival at the camera and its transfer. The duration
of the delay will be determined by the debouncer value.
Figure 23 illustrates how the debouncer filters out invalid input signals, i.e. signals that are shorter
than the debouncer value. The diagram also illustrates how the debouncer delays a valid signal.
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Basler dart BCON