Basler ace acA1920-155, Руководство пользователя, Страница: 306 / 326

Features AW00123404000
296 Basler ace USB 3.0
1. Set the Chunk Mode Active parameter to true.
You can set the Chunk Mode Active parameter value from within your application software by using
the Basler pylon API. The following code snippet illustrates using the API to set the parameter
value:
camera.ChunkModeActive.SetValue(true);
Also note that when you enable ChunkModeActive, the PayloadType for the camera changes from
"Pylon::PayloadType_Image" to "Pylon::PayloadType_ChunkData".
For detailed information about using the pylon API, refer to the Basler pylon Programmer’s Guide
and API Reference.
You can also use the Basler pylon Viewer application to easily set the parameters.

The individual data chunks, e.g. the Gain chunk, can be selected to be
appended to image data regardless of whether Chunk Mode Active is
enabled. However, the selected data chunks will only be appended if Chunk
Mode Active is enabled.

Image data with related supplementary data are counted as chunk 1 (for
more details, see Section 8.18.4 on
page 303 ). Despite this fact, image data
(i.e. the data for chunk 1) can be obtained even when Chunk Mode Active is
disabled. In this case, however, no trailing chunk data will be transmitted to
the PC, even not if individual data chunks are currently selected.
To enable Chunk Mode Active: