Hi folks,
I have uploaded the latest schematics for JP15 connections to my CombiMill.
The limit and home switches as standard in this machine have common +24VDC and used up 9 inputs in original CPU. Due to very hard work I decided to keep the original cables and made one relayboard to take care of my limits and home switches suitable to use for JP15 opto inputs. As I have a bunch of small HQ relays with 12VDC I have one resistor in series with the coil. These have max 26VDC capability but wanted to be on the safe side. Relays are NAIS DR12 miniature relays.

One more step accomplished

Cheers Bengt