---
title: groov RIO Energy Monitoring Unit
description: Monitor machine health with precise power data with Opto 22's new groov RIO EMU (energy monitoring unit).
image: https://info.opto22.com/hubfs/groovRIO-EMU_Wires_800.png
---

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# Monitor Machine Health with Precise Power Data

### Introducing *groov* RIO EMU (Energy Monitoring Unit) 

[![groovRIO-EMU_Wiring_groov-logo](https://info.opto22.com/hs-fs/hubfs/groovRIO-EMU_Wiring_groov-logo.png?width=600&name=groovRIO-EMU_Wiring_groov-logo.png)](https://www.opto22.com/products/product-container/grv-r7-i1vapm-3)

#### GRV-R7-I1VAPM-3

#### Edge I/O for Power

The *groov* RIO series from Opto 22 brings you a new kind of I/O product—edge I/O. It doesn't require a PLC, PAC, or IPC to communicate data to other systems. Instead, this intelligent, distributed I/O includes security, data processing, and networking to meet the needs of IIoT projects independently.

The new *groov* RIO energy monitoring unit ([GRV-R7-I1VAPM-3](https://www.opto22.com/products/product-container/grv-r7-i1vapm-3)) brings the same level of connectivity to projects that require energy data acquisition and communication.

Look what you can do with RIO EMU:

- Monitor category III 3-phase AC power up to 600 V in Delta or Wye configurations
- Capture 18 data values per phase—voltage, current, true power, power factor, and frequency—plus 10 3-phase totals
- Measure power and energy at the point of use to detect downtime predictors like high power consumption
- Easily share real-time data with analytics software, databases, and dashboards using the built-in MQTT/Sparkplug client, OPC UA server, or Modbus TCP.
- Secure the system and data with user accounts, configurable firewall, TLS certificates, HTTPS, and VPN client
- Quickly power for standalone operation with 802.3af PoE Class 0 switches or use 10-32 VDC line power

![groovRIO-EMU_Wiring (1)](https://info.opto22.com/hs-fs/hubfs/groovRIO-EMU_Wiring%20(1).png?width=803&name=groovRIO-EMU_Wiring%20(1).png)

![groovRIO-EMU_PowerEnergy-Data](https://info.opto22.com/hs-fs/hubfs/groovRIO-EMU_PowerEnergy-Data.png?width=800&name=groovRIO-EMU_PowerEnergy-Data.png)  
And, you can use *groov* RIO EMU in two ways:

- **As an edge energy monitoring unit**, communicating data between loads and data destinations. You can: 
    - Push data directly to on-premises or cloud apps, databases, or other software, typically using the included Node-RED
    - Publish data to an MQTT broker
    - Respond to Modbus/TCP requests for data
    - Configure with browser-based *groov* Manage software
    - Manage local user accounts and permissions, or from a central location through an LDAP server
- **As a traditional energy monitoring unit**, configuring channels through your control program: 
    - With a *groov* EPIC processor running a PAC Control strategy; add a *groov* RIO EMU as an I/O unit
    - With a groov EPIC processor running a CODESYS application, download and install the [Opto 22 CODESYS Library Package](https://www.opto22.com/support/resources-tools/downloads/opto-22-library-package-for-codesys-development-sy) to the CODESYS Development System, then add a *groov* RIO EMU as an Ethernet device
    - With a custom control program through either *groov* RIO's OptoMMP memory map, its REST API, or through secure shell access (requires free [GROOV-LIC-SHELL](https://www.opto22.com/products/product-container/groov-lic-shell) license)

*Complete the form on this page to contact an Opto 22 engineer and discuss what energy monitoring tools can help with your machines and applications.*

 

### Discuss your application with an engineer:

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