This data sheet describes Opto 22's groov RIO® Energy Monitoring Unit (EMU), an edge energy monitoring module for industrial internet of things (IIoT) and automation applications. With a single part number (GRV-R7-I1VAPM-3), you can monitor AC voltage, current, power, and energy usage on wye or delta circuits up to UL 61010-3 measurement category III; power over Ethernet; and mounting without the need for a rack or chassis—in a compact industrial package. It can monitor three-phase AC current using 0.333 V, 1 V, or 5 A current transformers (CT). The module includes built-in processing and communication through web-based configuration, flow logic software, efficient data communication methods, centralized user management, and support for multiple operations technology (OT) and information technology (IT) protocols to simplify any IIoT or automation application.

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