Which statement is true regarding the ladder program execution in PLC Run mode?

In PLC Run mode, the program is continuously scanned to execute the logic defined within the ladder logic diagram. This scanning process involves the PLC reading the status of the inputs, processing the logic, and then updating the outputs based on the current state of the inputs and the defined program logic.

Continuous scanning allows the PLC to respond dynamically to changing input conditions in real-time, ensuring that the control processes are executed as intended. This function is essential for maintaining the efficiency and reliability of the automation system, as it ensures that the outputs are always reflecting the most current input conditions.

The other options do not accurately describe the nature of PLC operation in Run mode. For instance, logic functions being disabled or the user only being able to view the program do not correspond to how a PLC operates in this mode. The ability to monitor outputs is a part of the system’s function, but it doesn’t encapsulate the comprehensive active scanning and processing that defines the Run mode.