User`s manual

Features AW00098504000
170 Basler ace Camera Link
10.5 Sequencer
Overview
During operation, the camera is controlled by a set of configuration parameters that reside in the
camera’s volatile memory. This set of parameters is known as the "active set". When you use the
pylon API or direct register access to make a change to a camera parameter such as the Gain, you
are making a change to the active set. And since the active set controls camera operation, you will
see a change in camera operation when you change a parameter in the active set. For more
information about the active set, see the "Configuration Sets" section.
From the point of view of the sequencer feature, the parameters in the active set can be divided into
two types: "non-sequence" and "sequence" parameters (as shown in Figure 50 on page 170). The
non-sequence parameters are those that cannot be changed using the sequencer feature and the
sequence parameters are those that can be changed using the sequencer feature.
With the sequencer feature, you can define up to four different "sequence sets". Each sequence set
includes a set of values for all of the sequence parameters. As you are acquiring images, you can
replace the values for the sequence parameters in the active set with the values from any one of
the sequence sets at will. So, for example, you could define four sequence sets, with each one
being appropriate for a different type of lighting conditions. As you are operating your system and
the lighting conditions change, you could replace the values for the sequence parameters in the
active set with the values from any one of the sequence sets at will. One of the main advantages of
the sequence sets is that because they reside in the camera’s FPGA, you can replace the values
in the active set with values from one of the sequence sets almost instantaneously.
Active Set
Non-sequence
Parameters
Sequence
Parameters
Sequence
Enable
Sequence Set 0
Sequence Set 1
Sequence Set 2
Sequence Set 3
Set ID
Control A
Control B
Load / Store
pylon API /
Register Access
Fig. 50: Sequence Feature Block Diagram