Avoid the extra cost of an additional controller and effort of maintaining multiple applications. Start with a Digi Z45 Industrial Controller and add I/O by connecting Digi Z1201 expansion modules for a solution tailored to your system.
With support for various I/O combinations — relays, digital, analog, pulse, inputs and outputs — the expandable Digi Z1201 I/O module provides monitoring and controlling for use cases requiring unique I/O combinations.