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Direct digital control systems &Software

Direct digital control systems &Software. Introduction DDC Structure The position algorithm The velocity algorithm. Analog process. Direct digital control. DDC. Centralized User Interface ·Dynamic, Precise Facility Control ·Coordination of Facility Systems Operation

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Direct digital control systems &Software

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  1. Direct digital control systems&Software Introduction DDC Structure The position algorithm The velocity algorithm

  2. Analog process

  3. Direct digital control

  4. DDC • Centralized User Interface • ·Dynamic, Precise Facility Control • ·Coordination of Facility Systems Operation • ·Speed and Reliability from Computational Power • ·Optimizing Facility Diversity • ·Durability and Flexibility • ·Troubleshooting/Easing of maintenance • ·Trending and History Data Logging • ·Customized Energy Reporting

  5. DDC for chemical reactor

  6. DDC structure

  7. The Position algorithm

  8. `

  9. The Velocity Algorithm

  10. Two-Position Control

  11. Two measure problems inVelocity algorithm • CONTROLLER DRIFT • Integral over shoot

  12. Effect of set point band in Velocity algorithm

  13. Benefits of DDC • Improved Effectiveness Improved Operational Efficiency increased Energy Efficiency

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