Home

Previous

Up

Next

MultiCam Boards Documentation > MultiCam Documentation > MultiCam User Guide > General Topics > Line-Scan Inspection Topics > Triggering a Line-Scan Camera > External Line Triggering

External Line Triggering

This mode is effective when the MultiCam parameter LineRateMode is set to PULSE.

External line triggering

In this mode, the trigger pulse generated by the frame grabber and reaching the camera is a copy of a system trigger pulse applied to the frame grabber trough a dedicated hardware line.

The hardware line used is selected with MultiCam parameter LineTrigLine, and the style of the signal applied to this line can be chosen among a set of variants. The MultiCam parameter LineTrigCtl is used to select the appropriate signal style.

Also the MultiCam parameter LineTrigFilter is used to remove any parasitic electrical noise that could alter the shape of the system trigger pulse.

The system device generating the system trigger pulse should be such that the maximum line frequency is never reached.