What does "modular programming" in PLC systems refer to?

Modular programming in PLC systems refers to a method that organizes tasks into manageable modules or blocks of code. This approach allows for the development of programs that can be broken down into smaller, reusable components, making it easier to design, debug, and maintain complex systems. Each module can handle a specific function or task, which can be independently modified or replaced without affecting the overall program. This modularity improves efficiency and facilitates collaboration among multiple programmers, as different parts of the project can be worked on simultaneously.

The importance of this approach is underscored by its advantages in scalability and maintainability. By organizing software into modules, developers can adapt to changes more easily and enhance the program incrementally. Additionally, this structure fosters clearer documentation and understanding of the system's functions.

The other options do not accurately capture the essence of modular programming. While condensing software, coding languages, or hardware integration are relevant concepts in their own right, they do not specifically address the organizational strategy that modular programming embodies within PLC systems.