Bending Beam Closed-Loop Control With Higher Bit Depth

The patent applies parameter changes by increasing the bit depth of the programmable logic circuit from standard 16-bit to 32-bit or higher. This parameter change allows the circuit to handle the full range of control error values without overflow, eliminating transient disruptions during mode transitions while maintaining automation. The higher bit depth provides sufficient precision to represent control errors and manipulated variables accurately throughout the transition process.

The patent implements parameter changes by transitioning from standard 16-bit processing to 32-bit or higher bit depth processing in the programmable logic circuit. This change in parameter (bit depth) significantly improves control precision during mode transitions, allowing accurate representation of control errors and manipulated variables without requiring a complete redesign of the control architecture.

The patent applies preliminary action by performing data reduction only after all calculations and control operations are completed. The full-range 32-bit or higher precision values are maintained throughout the control error processing, calculation of manipulated variables, and mode transition operations. Data reduction to the original bit depth is performed only in the final output stage, ensuring that precision is preserved throughout the entire control process and preventing unintended contact with the sample.