|Originally Posted by banana buds hey gray, noticed y’alls picked up a PLC. some fine machines, but you might want to consider looking into something even easier and cleaner to build with – arduino boards. they are extremely easy to deal with, and should be plenty of muscle for your application.that would definitely help cut costs, as the boards themselves are around $30, and there is a ton of auxiliary hardware available to mate directly up to them for various functions. i would imagine that for what you would spend on all the control hardware using an arduino as the heart, you’d probably spend less than what just the PLC costs. and out of curiosity, why solid state relays? nothing like the satisfying clack of a 40 amp contactorif you want more information i’d be happy to help, although i don’t have PM abilities yet so it will have to just be in here on your thread i suppose.