Quote Originally Posted by Sooty View Post
I have converted a few denford machines (in the easy way) but the triac will be a different beastie with the atc. i will probably need to use an ethernet controller with all the inputs that will be required for the ATC, my normal breakout boards dont have nearly enough. Have wanted to get one for a while but cant justify the spend at the moment.
The ATC isn't that much of a problem. At the basic level, it's just 4 inputs and 3 outputs.
The far bigger problem are the home sensors, as for most controllers you need to change them to newer NPN/PNP type, but I'm sure if you know a bit electronics, you could make up an interface board to convert the NAMUR signal to something more usable.
Plus you need a controller capable of handling the 24V logic, unless you want to drop all the controls to 5V (I really wouldn't recommend that option!).
And just for good measure the carousel index sensor is 5V (I swapped mine to a 24V version).