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Using Distributed Control System Diagrams

Learning objectives

  • Identify basic logic symbols used in logic diagrams
  • List the parts of a drawing title block
  • Explain the purpose of a drawing legend
  • Discuss permissives and interlocks associated with control systems
  • Describe how a control loop maintains a parameter at its control setpoint
  • Discuss the use of trip setpoints
  • Describe how the feedback function in a control loop helps keep processes stable
  • Describe trim and bias control logic features
  • Discuss general troubleshooting steps and techniques

Course overview

When you complete this lesson, you will be able to describe the basic symbols and parts of a logic diagram. You will also be able to explain how to use a DCS logic diagram as a troubleshooting tool.

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