What is the purpose of a PLC’s memory?
A. To store the control program
B. To store data from the industrial process
C. To store the PLC’s configuration settings
D. All of the above
Answer:D
What is the purpose of a PLC’s memory?
A. To store the control program B. To store data from the industrial process C. To store the PLC’s configuration settings D. All of the above
Explanation: The memory of a PLC is used to store the control program, data from the industrial process, and the PLC’s configuration settings. This allows the PLC to retain its program and data even during a power failure, and to be configured to meet the specific needs of the industrial process.