My ET6 arrived yesterday and I'm in the middle of doing a brain transplant on my control box. Wasn't easy removing the IP/M - who builds a DIN rail fitting box without access to the latch underneath? Anti-theft device? I had to remove the DIN rail to take the thing out. I have built a new mounting for the ET6 as it is a bare board rather than boxed item, but it looks as if the current wiring that went to the IP/M is going to fit the ET6 without major work. Shall report back when it's all working.

Now, there's confidence...