User`s manual

Standard Features AW00089316000
260 Basler ace GigE
10.7.3 Free Selection Sequence Advance Mode
When the free selection sequence advance mode is selected the advance form one sequence set
to the next as frame start triggers are received does not adhere to a specific preset sequence: The
sequence sets can be selected at will using the states of input line 1: The states of the input line set
the sequence set addresses. These correspond to the sequence set index numbers and
accordingly, the related sequence set is selected. For details about selecting sequence sets via the
sequence set address, see the "Selecting Sequence Sets" section.
The Sequence Set Total Number parameter specifies the total number of sequence sets that are
available. The maximum number is 2.
10.7.3.1 Operation
Operating the Sequencer
The following use case (see also Figure 97) illustrates the operation of the sequencer in free
selection sequence advance mode.
In this use case, the Sequence Set Total Number parameter was set to two. Accordingly, the
available sequence set index numbers are 0 and 1. Input line 1 sets bit 0 of the sequence set
address. The input line is not set for invert. The frame start trigger is set for rising edge triggering.
Assuming that the camera is in the process of continuously capturing images, the sequencer
feature operates as follows:
 When the sequencer feature becomes enabled and a frame start trigger was received, the
camera checks the state of input line 1. Input line 1 is found to be low. This corresponds to the
address of sequence set 0. Accordingly, sequence set 0 is selected. Its parameter values are
loaded into the active set and are used for the image acquisition.
 When the next frame start trigger was received, the camera checks the state of input line 1.
Because the state has not changed 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 state of input line 1.
Because the state has not changed 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 state of input line 1.
Input line 1 is found to be high. This corresponds to the address of sequence set 1.
Accordingly, sequence set 1 is selected. Its parameter values are loaded into the active set
and are used for the image acquisition.
Note that the state of input line 1 went high well ahead of the frame start trigger.