In a PLC programming environment, where is the logic of a selected routine displayed?

The logic of a selected routine is displayed in the routine itself. In a PLC programming environment, a routine represents a specific section of the program where a series of instructions or logical operations are executed. When a user selects a routine, they can view and modify the programming logic which directly affects how the PLC will operate in response to inputs and control outputs accordingly. This makes the routine central to the programming process, as it encapsulates the specific functions and operations that the PLC is designed to perform.

The other options, such as Program Properties, Debug Window, and Network Configuration, serve different purposes. Program Properties typically provide metadata or settings related to the overall program, the Debug Window is used for monitoring and troubleshooting during the runtime of the program, and Network Configuration deals with the setup and management of communication within a PLC network, rather than displaying the logic of a routine.