--- title: OptoBlog | groov rio emu (2) description: groov rio emu | (2) --- - [Log in](https://www.opto22.com/logon?returnurl=%2f) - [Register](https://www.opto22.com/Special-Pages/Logon.aspx) - [Your Cart](https://www.opto22.com/Checkout/Shopping-Cart) - [Contact Us](https://www.opto22.com/support/contact-us) [![Opto 22 Logo](https://blog.opto22.com/hubfs/opto22_lightsilvergradient_800px.png "Opto 22 Logo")](https://www.opto22.com) - [Products](https://www.opto22.com/products) - [What Do You Want to Do?](https://www.opto22.com/products/what-do-you-want-to-do) - [groov RIO](https://www.opto22.com/products/groov-rio) - [groov EPIC System](https://www.opto22.com/products/groov-epic-system) - [Case Studies](https://www.opto22.com/products/groov-case-studies) - [Product Selector](https://www.opto22.com/products/product-selector) - [Product Families](https://www.opto22.com/products/product-families) - [IIoT System Architecture](https://www.opto22.com/support/resources-tools/demos/groov-epic-groov-rio-architecture) - 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[Privacy Policy](https://www.opto22.com/support/privacy) - [About Us](https://www.opto22.com/about-us) - [History](https://www.opto22.com/about-us/history) - [Location](https://www.opto22.com/about-us/directions) - [Corporate Contacts](https://www.opto22.com/about-us/corporate-contacts) - [Opto 22 Product Philosophy](https://www.opto22.com/about-us/opto-22-product-philosophy) - [Customer Quotes/Testimonials](https://www.opto22.com/about-us/customer-quotes-testimonials) - [Virtual Tour](https://www.opto22.com/about-us/virtual-tour) - [Pressroom](https://www.opto22.com/about-us/pressroom) - [Distributors](https://www.opto22.com/about-us/distributors) - [International](https://www.opto22.com/about-us/international) - [Sustainability](https://www.opto22.com/about-us/sustainability) - [Careers](https://www.opto22.com/about-us/careers) - [Community](https://www.opto22.com/community) - [OptoPartners](https://www.opto22.com/community/opto-partners) - [Technology Partners](https://www.opto22.com/community/technology-partners) - [Education Partnerships](https://info.opto22.com/partnering-in-education) - [Opto Blog](https://blog.opto22.com/) - [Opto Forums](http://forums.opto22.com/) - [Events](https://www.opto22.com/community/events) - [Articles](https://www.opto22.com/articles) - [Log In](https://www.opto22.com/logon) - [Register](https://www.opto22.com/Special-Pages/Logon.aspx) - [Your Cart](https://www.opto22.com/Checkout/Shopping-Cart) - [Contact Us](https://www.opto22.com/support/contact-us)   # OptoBlog # OptoBlog ## [How to use the groov RIO EMU](https://blog.opto22.com/optoblog/how-to-use-the-groov-rio-emu) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Apr 8, 2024, 9:58:51 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/groovRIO-EMU_Wiring_groov-logo.png)](https://blog.opto22.com/optoblog/how-to-use-the-groov-rio-emu) ### Learn more about how this energy monitoring unit works with the newly published *groov* RIO EMU user's guide. When introduced in 2020, the *groov* RIO series introduced a new kind of I/O product: edge I/O. Communicating data to other systems doesn't require a PLC, PAC, or IPC. Instead, this intelligent, distributed I/O includes security, data processing, and networking to meet the needs of IIoT projects independently. Then we introduced the *groov* RIO energy monitoring unit ([GRV-R7-I1VAPM-3](https://www.opto22.com/products/product-container/grv-r7-i1vapm-3)), or RIO EMU for short, to bring the same level of connectivity to projects that require power and energy data acquisition and communication. Whether you're already using groov RIO for energy monitoring or still researching your options, the new [groov RIO EMU User's Guide](https://documents.opto22.com/2372_groov_RIO_EMU_Users_Guide.pdf) can help you understand its full capabilities and features. [Read More](https://blog.opto22.com/optoblog/how-to-use-the-groov-rio-emu) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/how-to-use-the-groov-rio-emu#comments-listing) Topics: [groov rio emu](https://blog.opto22.com/optoblog/topic/groov-rio-emu), [energy monitoring](https://blog.opto22.com/optoblog/topic/energy-monitoring) ## [Power monitoring is your gateway to operational efficiency](https://blog.opto22.com/optoblog/power-monitoring-is-your-gateway-to-operational-efficiency) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Mar 26, 2024, 12:00:27 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/ILRecordingPowerMonitoringMar2024.png)](https://blog.opto22.com/optoblog/power-monitoring-is-your-gateway-to-operational-efficiency) ### Watch a recording of this month's IntegrateLive! Workshop and learn how to quickly start monitoring energy for meaningful insights. Did you miss episode 16 of IntegrateLive! last week? No problem—the recording is now available to catch up on what you missed or to view it again. Benson Hougland and Ben Orchard from Opto 22, along with Alex Marcy from Corso Systems, join IL hosts Jeff Knepper and Allen Ray for an 80-minute session devoted to power monitoring. Whether you are trying to enhance your sustainability profile, reduce operational costs, or empower your maintenance team with actionable insights, this workshop provides the knowledge and tools you need to get started. Watch: [Not Just Green - Power monitoring is your gateway to operational efficiency](https://youtu.be/QSgnhq9g0IM?si=DBt9yByGHaAo_-Tq) [Read More](https://blog.opto22.com/optoblog/power-monitoring-is-your-gateway-to-operational-efficiency) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/power-monitoring-is-your-gateway-to-operational-efficiency#comments-listing) Topics: [Webinars](https://blog.opto22.com/optoblog/topic/webinars), [power monitoring](https://blog.opto22.com/optoblog/topic/power-monitoring), [groov rio emu](https://blog.opto22.com/optoblog/topic/groov-rio-emu), [IntegrateLive!](https://blog.opto22.com/optoblog/topic/integratelive), [energy monitoring](https://blog.opto22.com/optoblog/topic/energy-monitoring) ## [IntegrateLive! Virtual Workshop: Power Monitoring](https://blog.opto22.com/optoblog/integratelive-virtual-workshop-power-monitoring) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Feb 27, 2024, 12:03:49 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/social-suggested-images/storage.googleapis.comstreamyard-apppubliconaircloudStorageItem_E6k1QyS9mE1rDBsw.png)](https://blog.opto22.com/optoblog/integratelive-virtual-workshop-power-monitoring) ### Take a deep dive into the transformative potential of monitoring your power consumption. Join us for the first IntegrateLive! episode of 2024! OptoPartner [Corso Systems](https://www.opto22.com/community/opto-partners/corso-systems)will help us present a live demo virtual workshop showing the capabilities of the [*groov* RIO EMU](https://www.opto22.com/products/product-container/grv-r7-i1vapm-3) (energy monitoring unit) along with Ignition software. Go beyond the sustainability and ESG data collection to understand how monitoring your energy and power usage offers several benefits that could revolutionize the way you manage and optimize your operations. Register to attend:  **[Not Just Green - Power monitoring is your gateway to operational efficiency](https://streamyard.com/watch/9t8axkBtHuA7)**     [Read More](https://blog.opto22.com/optoblog/integratelive-virtual-workshop-power-monitoring) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/integratelive-virtual-workshop-power-monitoring#comments-listing) Topics: [Webinars](https://blog.opto22.com/optoblog/topic/webinars), [Ignition](https://blog.opto22.com/optoblog/topic/ignition), [power monitoring](https://blog.opto22.com/optoblog/topic/power-monitoring), [groov rio emu](https://blog.opto22.com/optoblog/topic/groov-rio-emu) ## [Understanding Your Industrial Electricity Bill](https://blog.opto22.com/optoblog/understanding-your-industrial-electricity-bill) Posted by [Arun Sinha](https://blog.opto22.com/optoblog/author/arun-sinha) on Dec 6, 2023, 7:00:00 AM - [Tweet](https://twitter.com/share) [![](https://lh7-us.googleusercontent.com/zgK05IMcbR6GRIZZT3E-S1EagOI0WZAqDn398EtBf4a3MVryxRjhOkjpN_OnM_AWPLEKDa3cHSiqkMhFAPkbazyCF4YG9nrznXqUxFf2YfwNjGM_ivlLFFUqqjNb74faQpLMAYBpZoIko8euPO1pSx8)](https://blog.opto22.com/optoblog/understanding-your-industrial-electricity-bill) ### The first step toward reducing your energy spend is to analyze your utility bill. In my previous blog post, “[Why Consider Energy Monitoring](https://blog.opto22.com/optoblog/why-consider-energy-monitoring)” I proposed that acquiring data was essential to any project targeted at reducing an organization's energy spend. I also touched on how the electric utility bill for industrial users can be complex. If you are considering monitoring your energy and power, a good first step would be to get a hold of and understand that bill. I thought I would analyze and share my thoughts on Opto 22’s bill, as it is probably very similar to the one for your industrial or commercial facility. [Read More](https://blog.opto22.com/optoblog/understanding-your-industrial-electricity-bill) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/understanding-your-industrial-electricity-bill#comments-listing) Topics: [Energy management](https://blog.opto22.com/optoblog/topic/energy-management), [IIoT](https://blog.opto22.com/optoblog/topic/iiot), [Data acquisition](https://blog.opto22.com/optoblog/topic/data-acquisition), [digital transformation](https://blog.opto22.com/optoblog/topic/digital-transformation), [power monitoring](https://blog.opto22.com/optoblog/topic/power-monitoring), [groov rio emu](https://blog.opto22.com/optoblog/topic/groov-rio-emu), [energy monitoring](https://blog.opto22.com/optoblog/topic/energy-monitoring) ## [Selecting and sizing a current transformer](https://blog.opto22.com/optoblog/selecting-and-sizing-a-current-transformer) Posted by [Ben Orchard](https://blog.opto22.com/optoblog/author/ben-orchard) on Jun 14, 2023, 10:12:45 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/CTs_part1.jpg)](https://blog.opto22.com/optoblog/selecting-and-sizing-a-current-transformer) What looks like a donut, but you can't eat it, yet it still gives energy? Clearly, I’m not very good at riddles, so I’ll cut straight to the answer: a current transformer, or CT. CTs are a critical part of any electrical load monitoring system, so let's take a look at how they work, the different types, how to size them, and lastly, two important aspects of installing them. [Read More](https://blog.opto22.com/optoblog/selecting-and-sizing-a-current-transformer) 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/selecting-and-sizing-a-current-transformer#comments-listing) Topics: [Energy management](https://blog.opto22.com/optoblog/topic/energy-management), [groov rio emu](https://blog.opto22.com/optoblog/topic/groov-rio-emu), [current transformers](https://blog.opto22.com/optoblog/topic/current-transformers), [energy monitoring](https://blog.opto22.com/optoblog/topic/energy-monitoring) ## [Time to update: groov RIO 3.4 with OPC UA server](https://blog.opto22.com/optoblog/time-to-update-groov-rio-3.4-with-opc-ua-server) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Jul 13, 2022, 10:00:00 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/RIOwOPCUA.jpg)](https://blog.opto22.com/optoblog/time-to-update-groov-rio-3.4-with-opc-ua-server) ### Following the recent *groov* EPIC 3.4 firmware update, *groov* RIO offers similar updates in its 3.4 release. Here are some exciting additions in the latest *groov* RIO 3.4 package. All these new features are available in all *groov* RIO models: [MM1](https://www.opto22.com/support/resources-tools/downloads/grv-r7-mm1001-10-firmware), [MM2](https://www.opto22.com/support/resources-tools/downloads/grv-r7-mm2001-10-firmware) and [RIO EMU](https://www.opto22.com/support/resources-tools/downloads/grv-r7-i1vapm-3-firmware). The biggest news is the embedded OPC UA server. This is a first of its kind: a fully functioning OPC UA server option for a remote, Ethernet-based input/output module. [Read More](https://blog.opto22.com/optoblog/time-to-update-groov-rio-3.4-with-opc-ua-server) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/time-to-update-groov-rio-3.4-with-opc-ua-server#comments-listing) Topics: [Updates](https://blog.opto22.com/optoblog/topic/updates), [MQTT](https://blog.opto22.com/optoblog/topic/mqtt), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [OPC UA](https://blog.opto22.com/optoblog/topic/opc-ua), [groov rio emu](https://blog.opto22.com/optoblog/topic/groov-rio-emu), [Version 3.4 update](https://blog.opto22.com/optoblog/topic/version-3-4-update) ## [Learn the benefits of power and energy monitoring](https://blog.opto22.com/optoblog/learn-the-benefits-of-power-and-energy-monitoring) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on May 26, 2022, 11:43:03 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/Arun-WhyEnergyPower-20220517-3-thumb.png)](https://blog.opto22.com/optoblog/learn-the-benefits-of-power-and-energy-monitoring) ### Better machine health, lower energy costs: see the financial and operational advantages in this new video. Why isn't energy accounted for the same as other major business expenditures? It's time to change that. Opto 22's Director of Business Development, Arun Sinha, shows what you gain when you implement a plan to monitor and manage energy consumption and power usage. [Read More](https://blog.opto22.com/optoblog/learn-the-benefits-of-power-and-energy-monitoring) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/learn-the-benefits-of-power-and-energy-monitoring#comments-listing) Topics: [Energy management](https://blog.opto22.com/optoblog/topic/energy-management), [Videos](https://blog.opto22.com/optoblog/topic/videos), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [power monitoring](https://blog.opto22.com/optoblog/topic/power-monitoring), [groov rio emu](https://blog.opto22.com/optoblog/topic/groov-rio-emu) ## [Power and energy monitoring with Modbus TCP](https://blog.opto22.com/optoblog/power-and-energy-monitoring-with-modbus) Posted by [Ben Orchard](https://blog.opto22.com/optoblog/author/ben-orchard) on May 23, 2022, 1:00:00 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/RIO-EMU_Modbus_1600.png)](https://blog.opto22.com/optoblog/power-and-energy-monitoring-with-modbus) ### Get some tips on using the *groov* RIO EMU with other Modbus TCP devices. The Modbus protocol has been around since the late 1970’s. This is both amazing and cool. Amazing as some reading this have been using it since then (how time flies!). Cool because it's been around so long, and well established and widely used. Opto 22 products have been supporting Modbus TCP since way-back-when. Out of the box, our devices are Modbus TCP slaves (now called "servers") and can be polled for data on specific register addresses. The [*groov* RIO EMU](https://www.opto22.com/products/product-container/grv-r7-i1vapm-3) (Energy Monitoring Unit), one of our newest products, is no different. [Read More](https://blog.opto22.com/optoblog/power-and-energy-monitoring-with-modbus) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/power-and-energy-monitoring-with-modbus#comments-listing) Topics: [Energy management](https://blog.opto22.com/optoblog/topic/energy-management), [Modbus](https://blog.opto22.com/optoblog/topic/modbus), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [OptoForum](https://blog.opto22.com/optoblog/topic/optoforum), [power monitoring](https://blog.opto22.com/optoblog/topic/power-monitoring), [groov rio emu](https://blog.opto22.com/optoblog/topic/groov-rio-emu) [Previous](https://blog.opto22.com/optoblog/topic/groov-rio-emu/page/1) [All posts](https://blog.opto22.com/optoblog/all) ### Subscribe to Email Updates ### Recent Posts ### Posts by Topic - [groov EPIC (512)](https://blog.opto22.com/optoblog/topic/groov-epic) - [groov RIO (306)](https://blog.opto22.com/optoblog/topic/groov-rio) - [optonews (218)](https://blog.opto22.com/optoblog/topic/optonews) - 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