Version¶

The execution of an image processing job can be triggered by the following events:

External triggering of a Station, for example by a PLC
Manual image acquisition
Loading saved images

Depending on the start event, the relevant jobs are started within the active type, which in turn select and start their toolgroup-items. These pull in the images from their image-sources as needed and run the image processing procedure.

External triggering¶

In case of an external trigger, for example by a PLC, the following sequence is executed:

selection of the ToolGroup Item to be executed
Pulling in images from associated image-sources.
Apply stored calibration data
Reading data and setting toolgroup-input.
Running the ToolGroup
Forward result data to configured hardware.
Display of images and graphics
saving-images and Input and result data.

Manual image acquisition¶

Viper.NET offers the possibility to execute evaluations manually either one by one or continuously repeated. The prerequisite is that the job only uses image-sources with software-trigger.

Pressing the Execute BV button in the Job-Display Toolbar of a vision job triggers one image acquisition of each of the assigned image sources. This is followed by an evaluation with the currently loaded ToolGroup.

Warning

If in the global-settings the checkbox Save on trigger only is set, the recording will not be saved.

Hint

No results are written to the connected controller / hardware by the manual image acquisition. This only occurs in the event of a trigger by the controller.

With Run BV continuously in the Job-Display Toolbar manual image acquisition and evaluation are executed continuously. Pressing the button again deactivates the mode.

Warning

If in the global-settings the checkbox Save only on triggers is not set, a lot of image data may be saved.

Loading saved images¶

For error analysis, it can be helpful to run evaluations that have already been executed again. The following options are available for this purpose:

Re-execute with the last loaded image data: as long as these are displayed in the job display, the display images are re-evaluated when the button in the Job-Display Toolbar is pressed.
Run with saved image data from a directory: The RunFromDirectory Button allows running the toolgroup on one or more directory images (see RunFromDir).
Run on temporarily stored images of the image strip by double-clicking a thumbnail.