Reading EZ as marketing instead of architecture. EZ means zone controllers and transducers on every zone and a real Aux I/O question to answer. Miss it at design and you find the missing Aux I/O at commissioning, a panel modification at the worst possible time. And the mirror image: assuming a sorter or a transfer can accumulate. It can't. If product has to queue before it, the accumulation lives on a separate conveyor upstream.