Summary
In this chapter, we have explored libraries. We have learned what they are, how to use them, what third parties are, basic development principles, and so on. You should now be able to use libraries from external sources or create your own. What you will find is that by using libraries, you can now truly port code to different projects and cut down on your overall development time and effort.
There is a lot more to libraries, such as namespaces and so on, that was not explored in this chapter. A whole book could be dedicated to this subject. It is recommended that you explore libraries more on your own, as this chapter was just a crash course to get you familiar with the concept and consumption of libraries.
After covering many of the foundational elements of developing PLC software, we need to start exploring the software development life cycle so we can better manage the development of not only libraries but also entire codebases.