theoreticales

visilogic has a shift left and a shift right function block

I actually found the fishing analogy very useful, I think I will ponder this a while longer and report what I have concluded.

generally speaking, I don't specifically know how to use a vector to array for addressing purposes. I think this could be a useful tool, theoretically speaking of course. I would like to know more and will hopefully have some extra minutes to specifically figure it out and then I'll move on to understanding the way unitronics does it's math. Ironically enough, I started using arbitrary addressing descriptors and that seems to work well unless I need to describe a register for a specific function or action. I think your advice was useful.

Good day, I have been racking my brain for over a fort-night and I can't specifically understand how to choose memory bit locations. In theory I should be able to just use any arbitraury value and use that. I can't say one way or the other what is specifically the best way to choose a memory bit address. Does anyone have any theories on the best way to proceed. ( I am trying understand Ladder Logic, so please forgive me if I'm not using the correct nomenclatre)