What is the function of a PLC’s communication module?
A. To connect the PLC to other devices and systems
B. To transfer data between the PLC and other devices
C. To send and receive signals from other devices
D. All of the above
Answer:D
What is the function of a PLC’s communication module?
A. To connect the PLC to other devices and systems B. To transfer data between the PLC and other devices C. To send and receive signals from other devices D. All of the above
Explanation: The communication module of a PLC is responsible for connecting the PLC to other devices and systems, transferring data between the PLC and other devices, and sending and receiving signals from other devices. This allows the PLC to communicate with other devices in the industrial process, such as sensors, actuators, and other PLCs, as well as other systems like SCADA, DCS, MES and ERP systems.