Is now hooked up to the point motor control board. Took some working out with some boolean logic and luck. I now need to mount it on something, so that the whole shooting match can be detached from the layout. The feed from the control panel and the outputs to the motors will probably be added on site.

I'm looking forward to getting back to modelling!

Did anyone spot the deliberate mistake? I wired the second row of chips input into the output of the first row! Duh!