I think I tried this and it worked when I had an L73 in my shop about 6 months ago. The EIP protocol should continue to be the same whether it's an L6 or L7 series processor. I'll find out for sure in about 3 weeks because one of my projects will be replacing a PanelView with AdvancedHMI that works with an L71 processor.
As for the safety version, I'm not sure about that one.