The HMIZMDIO connector provides the physical interface between a Harmony GTU HMI base unit and a DIO (digital I/O) expansion module. It carries signal and power between the two units, allowing the HMI to read discrete inputs and drive outputs without a separate I/O rack. The 5-piece set covers a typical multi-module installation.
Applications
Harmony GTU connectors like the HMIZMDIO are used in machine-level HMI applications where the operator panel also handles local I/O — packaging lines, material handling stations, and small process skids. The connector keeps the DIO module mechanically and electrically coupled to the HMI base, saving panel space and wiring.