What are the main components of a PLC system?
A. CPU, memory, and input/output modules
B. Sensors, actuators, and control valves
C. Motors, gears, and bearings
D. Pneumatics, hydraulics, and electronics
Answer:A
What are the main components of a PLC system?
A. CPU, memory, and input/output modules B. Sensors, actuators, and control valves C. Motors, gears, and bearings D. Pneumatics, hydraulics, and electronics
Explanation: The main components of a PLC system include the central processing unit (CPU), memory, and input/output (I/O) modules. The CPU is the “brain” of the system and is responsible for executing the control program. Memory is used to store the program and data, and I/O modules are used to connect the PLC to sensors and actuators in the industrial process.