What is the function of a PLC’s communication protocol?
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. To ensure that data is transmitted and received correctly
Answer:D
What is the function of a PLC’s communication protocol?
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. To ensure that data is transmitted and received correctly
Explanation: A PLC’s communication protocol is a set of rules that define how data is transmitted and received between the PLC and other devices and systems. It ensures that data is transmitted and received correctly by defining the format, timing, and error-checking of the data. Different communication protocols are used for different types of communication, such as Ethernet, Modbus, Profinet, OPC-UA etc.