Originally Posted by
mollusk
Probably not what you wanted, but learning about ladder logic controls might be a good thing.
This stuff was supposed to be obsolete years ago, but still isn't. And most schools don't teach it.
Yeah, I'm pretty decent at that, could use a bit more depth probably though. One of our products has a native ladder logic graphical language so you can directly convert old physical drawings of logic schemes into code for the PLC.