Summary
In this chapter, we have explored many types of variables such as GVLs, enums, constants, structs, and more. In traditional PLC programming, concepts such as these are rarely used. However, as technology advances, these concepts are going to become more ingrained into the development of automation equipment. The concepts we have explored in this chapter will allow you to better organize your code. They will also serve as a way to better encapsulate data.
As we continue our journey in PLC programming, variables will play a vital role. In the next chapter, we are going to explore functions. As such, understanding variables will be pivotal in the exploration of function arguments.
