AW00011916000 Standard Features
Basler scout GigE 259
Line 1 was selected as the sequence control source for controlling sequence set advance. In
addition, Line 2 was selected as the source for controlling sequence cycle restart. Both input lines
are not set for invert.
Assuming that the camera is in the process of continuously capturing images, the sequencer
feature operates as follows:
When the sequencer feature becomes enabled, the sequence set cycle starts: The parameter
values of the sequence set with sequence set index number 0 are loaded into the active set
modifying the active set.
When a frame start trigger was received, the camera checks the states of input lines 2 and 1.
Input line 2 is found to be low and therefore the sequence cycle is not restarted. Input line 1 is
found to be low and therefore no new sequence parameter values are loaded into the active set.
The parameter values of sequence set 0 are used for the image acquisition.
When the next frame start trigger was received, the camera checks the states of input lines 2
and 1. Input line 2 is found to be low and therefore the sequence cycle is not restarted. Input
line 1 is found to be high and therefore the parameter values of the next sequence set are
loaded into the active set. The parameter values of sequence set 1 are used for the image
acquisition.
When the next frame start trigger was received, the camera checks the states of input lines 2
and 1. Input line 2 is found to be low and therefore the sequence cycle is not restarted. Input
line 1 is found to be high and therefore the parameter values of the next sequence set are
loaded into the active set. The parameter values of sequence set 2 are used for the image
acquisition.
When the next frame start trigger was received, the camera checks the states of input lines 2
and 1. Input line 2 is found to be high and therefore the sequence cycle is restarted. Input line
1 is found to be low but this has no significance: Synchronous restart has priority over the
sequence set advance control. The parameter values of sequence set 0 are used for the
image acquisition.
Another sequence set cycle has started.
Note that the state of input line 2 went high well ahead of the frame start trigger.
Note also that the camera briefly exits the "waiting for frame start trigger" status while an input
line changes its state. This happened, for example, when input line 2 changed its state before
the fourth frame start trigger was received (see also Figure 78).
To ensure reliable selection of a sequence set, allow the elapse of at least one
microsecond between setting the states of the input lines and the rise of the
frame start trigger signal.
Also, maintain the states of the input lines at least for one microsecond after
the frame start trigger signal has risen.
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