What is the primary purpose of a PLC?
A. To control machinery on factory assembly lines
B. To control building management systems
C. To control industrial processes
D. All of the above
Answer:D
What is the primary purpose of a PLC?
A. To control machinery on factory assembly lines B. To control building management systems C. To control industrial processes D. All of the above
Explanation: PLCs are widely used in industrial automation to control machinery on factory assembly lines, building management systems, and industrial processes. They are used to replace traditional hardwired control systems and provide a more flexible and efficient control solution.