A software trigger is activated by a software command.
A hardware trigger is activated by an external trigger signal input through the camera’s external I/O connector.
(For USB3 Vision and GigE Vision cameras, the external I/O connector is a 6-pin connector.)

How to set triggers in StViewer:

1. Stop image acquisition.
   Go to RemoteDevice -> AcquisitionControl -> TriggerMode and set it to ON.
2. In RemoteDevice -> AcquisitionControl -> TriggerSource, select:
   “Software” for software trigger
   “LineN” (N = 0, 1, or 2) for hardware trigger

Note:
When LineN is selected, the camera operates with hardware trigger input from the corresponding external I/O connector pin.