The Programmed Move function allows the stage to be automatically positioned using a series of memorized coordinates. These positions are programmed into the controller’s computer, then executed in sequence. This function is particularly useful for statistical quality assurance runs on large numbers of identical samples, and as a basic inspection aid.
To access this option, select Stage > Programmed Move from the menu bar in the Navigate View. This opens the Programmed Move panel in the Navigate window:
Once a program sequence has been taught to the computer, the program can be run from the Programmed Move panel. The stage will move to each position in the same order it was taught, relative to the current origin point. At each program position, the sample will be scanned for 1.5 frames, captured, then indexed to the next position. Captured data from each position is stored on the hard disk; there should be sufficient memory to record 100 frames at 256 samples each.
Programmed Move positions are memorized relative to the current origin at the time of programming. If the origin has been shifted from its original position since the time of programming, it will be necessary to reestablish the original origin point to locate the same positions on the sample. When generating maps of programmed moves, always indicate the origin point. This is done in the Set Reference panel.
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