What are the practical considerations in digital controller implementation?

Digital implementation considerations include: sampling rate selection (10-20x bandwidth minimum, faster for stability-critical), anti-aliasing filter design (attenuate frequencies above Nyquist), quantization effects (ADC/DAC resolution, coefficient word length), computational latency (affects phase margin), fixed vs floating point (precision vs speed tradeoffs), numerical stability of algorithm (avoid difference of large numbers), overflow protection, and bumpless transfer between manual and automatic modes. Real-time operating system requirements and deterministic execution are critical for control applications.