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Module: Control System Architecture
Control System Architecture

Control loops, implemented with proportional, integral, or derivative control circuitry and simpler on/off system control points, are utilized within one of three architectures. PLCs, or Programmable Logic Controllers, are used in smaller and simpler applications. They are the oldest of the three technologies and are often programmed with ladder-logic, relay-based tools. DCSs, or Distributed Control Systems, can be used to control an entire, large scale production facility, such as a power plant or refinery. DCSs can control separate PLC systems and have other branches they simultaneously control. SCADA, or Supervisory Control and Data Acquisition, systems are used to control even larger applications, such as a series of power plants connected to a grid or multiple refineries all supplying multiple pipelines.

This module takes 30 minutes to complete. At the end of this module, you must obtain an 80% or higher on the Test Your Knowledge for it to be marked as complete. You have unlimited attempts and the highest attempt is recorded.