Layer error threshold

The layer at which the workpiece is placed is automatically determined based on information of the found size and height corresponding to the reference layer taught in advance. The calculated layer may have a margin of error depending on the found size. Enter layer error threshold in text box with value between 1% and 50% as permissible calculation error.
For example, assume that a value of 20% is specified. When the height of the workpiece calculated from the found size is within a range between 20% of the reference height for the layer, the layer is determined.
If the height is outside the range, an alarm is issued because the layer cannot be determined.