High-Speed Capture

Some motion control applications require that you execute a move and record the locations where external triggers happen. To accomplish this, you must use the high-speed capture functionality of NI motion controllers.

The implementation for high-speed capture is divided into the buffered (NI 7350 controllers only) and non-buffered high-speed capture methods.

High-Speed Capture Algorithm

The following figure shows the basic algorithm for high-speed captures applicable to both C/C++ and LabVIEW code.