Lyndon, that's the diagram I'm working from, you already posted a link to it further up the thread.
I'm asking you to help clarify it for me, for as far as I can tell, I have my devices wired up in the same configuration but it's not working.
My wiring is consistent with this diagram, is it not? Am I not understanding something about Pin14 and 15 on the Master?
I really need help with this and have been trying to get assistance from the online support since last November, with no luck.