Programs are usually put in the appendix, because some programs are too long and look bad.

For your paper, you use a ladder diagram, which is easy to understand, but it looks clear at a glance. However, personal suggestions are best converted into a list of instructions (file-export-save, open with notepad). Just put it in the appendix. The ladder diagram takes up too much space. If the program is too long, you can set a column! More economical. I hope it helps you!