These cannot be used on the NXT. The lead tip and width are detected and the results are used to determine the part position similar to p_pattern types 3 and 4. The major difference is that with these p_patterns, the color of the points on the lead at which the lead tip and lead width are detected are opposite.
Type 23: The lead tip appears white, while the lead body appears black. The lead tip half of the outside circumference is black, while the body half is white.
Type 24: The lead tip appears black, while the lead body appears white. The lead tip half of the outside circumference is white, while the body half is black.
These are primarily used for parts with J-leads on one side or two opposing sides.
With parts that have J-leads on two perpendicular sides or more, the lead width direction is only required for determining the positioning, therefore it is recommended to select a different p_pattern (type: 33, 34) that matches the processing conditions.
Example Target Parts
Type 23: Currently no example target part exists.
Type 24: SOJ parts processed with frontlighting with a white background.