What do PL levels 1 through 8 define?

• A. Distance tolerance in millimeters from the taught point.
• B. Motor current limit.
• C. Instruction priority.
• D. Program version.

Answer: (A)

PL levels 1 through 8 define how close the robot must be to a taught point, measured in millimeters, for the position to be considered valid. When you teach a point, the controller stores the target pose, and the PL level sets the allowable deviation from that pose during operation. A smaller tolerance (tighter PL level) yields higher precision but can be more sensitive to small errors like mechanical backlash or sensor noise; a larger tolerance (looser PL level) accommodates more variation and can improve robustness and speed. This concept is specifically about positional accuracy around the taught point, not motor current, instruction priority, or program version.