--- title: OptoBlog | I/O modules description: I/O modules | --- - [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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[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 ## [Commission 30 I/O points in under 8 minutes](https://blog.opto22.com/optoblog/commission-30-i/o-points-in-under-8-minutes) Posted by [Ben Orchard](https://blog.opto22.com/optoblog/author/ben-orchard) on Apr 9, 2025, 8:56:51 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/TesterBenIOCommissionBlog.png)](https://blog.opto22.com/optoblog/commission-30-i/o-points-in-under-8-minutes) ### Hear first hand how smoothly and powerfully a *groov* EPIC controller lends itself to the commissioning process. Now and then, I get signed up to do something different. Most of us have that clause in our job descriptions: "or any other duties as directed." 😁 In this case, I assembled a cabinet with a [*groov* EPIC](https://www.opto22.com/products/groov-epic-system) on a chassis four rack. The four I/O modules were a mix with a total of 30 channels. Of course, after the wiring was done, a sanity check was in order—or, said another way, a point-by-point check that everything was working as it should have been. Sounds tedious, right? Follow along... [Read More](https://blog.opto22.com/optoblog/commission-30-i/o-points-in-under-8-minutes) 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/commission-30-i/o-points-in-under-8-minutes#comments-listing) Topics: [I/O](https://blog.opto22.com/optoblog/topic/io), [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [technical tips](https://blog.opto22.com/optoblog/topic/technical-tips) ## [Firmware updates for I/O modules](https://blog.opto22.com/optoblog/firmware-updates-for-i/o-modules) Posted by [Ben Orchard](https://blog.opto22.com/optoblog/author/ben-orchard) on Jan 10, 2024, 10:46:00 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/2modulelights.png)](https://blog.opto22.com/optoblog/firmware-updates-for-i/o-modules) ### New features and improved performance are available on *groov* I/O modules with the click of a button. A well-known electric car company is somewhat famous for its ability to add features and fix bugs with over-the-air updates to millions of cars. Of course, they are not the only ones with this feature. Many companies have been updating their hardware with firmware updates for decades, but it really captures the imagination when the hardware is something you drive. Closer to our hearts and minds, Opto 22 has been adding features and squishing bugs on our controllers for more years than most of us can recall (it's our 50th year in 2024!). There are a few SNAP I/O modules that can have their firmware updated via our PAC Manager program—the serial data ones for example—but now with *groov* EPIC and RIO, ALL our modules can have new features and refined performance added at the click of a button. [Read More](https://blog.opto22.com/optoblog/firmware-updates-for-i/o-modules) 2 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/firmware-updates-for-i/o-modules#comments-listing) Topics: [Firmware](https://blog.opto22.com/optoblog/topic/firmware), [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [I/O](https://blog.opto22.com/optoblog/topic/i-o), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio) ## [Two new groov EPIC I/O modules for power monitoring and universal I/O](https://blog.opto22.com/optoblog/two-new-groov-epic-i/o-modules-for-power-monitoring-and-universal-i/o) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Nov 18, 2021, 10:30:00 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/GRV-IVAPM-3_MM1001-10.png)](https://blog.opto22.com/optoblog/two-new-groov-epic-i/o-modules-for-power-monitoring-and-universal-i/o) ### Learn about two new I/O modules just announced for the *groov* EPIC controller. Two highly anticipated *groov* EPIC modules are here: the 3-phase power monitoring module with 64 channels of data (!), and the highly flexible, software-configurable multifunction, multi-signal module. These new modules can take your system to another level of efficiency and another step closer to your digital transformation goals. Are you looking to lower your energy spend, avoid equipment failure, and reduce carbon emissions? These latest I/O offerings allow engineers to bring energy, performance, and machine health data directly from the edge into backend systems, for old and new equipment alike, aiming to reduce complexity, cost, and timelines. Let's take a closer look at these new I/O options:  [Read More](https://blog.opto22.com/optoblog/two-new-groov-epic-i/o-modules-for-power-monitoring-and-universal-i/o) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/two-new-groov-epic-i/o-modules-for-power-monitoring-and-universal-i/o#comments-listing) Topics: [Energy management](https://blog.opto22.com/optoblog/topic/energy-management), [I/O](https://blog.opto22.com/optoblog/topic/io), [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [Edge I/O](https://blog.opto22.com/optoblog/topic/edge-i-o) ## [More I/O options for groov EPIC](https://blog.opto22.com/optoblog/more-i/o-options-for-groov-epic) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Feb 20, 2020, 7:52:21 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/GRV-IVIRMS-10_p_o_1600.png)](https://blog.opto22.com/optoblog/more-i/o-options-for-groov-epic) ### Another *groov* I/O module was just released as the *groov* EPIC system continues to expand. We've just added [GRV-IVIRMS-10](https://www.opto22.com/products/product-container/grv-ivirms-10) to our growing list of I/O options for *groov* EPIC. As the latest addition to the family of analog voltage input modules, **GRV-IVIRMS-10** provides true RMS (root mean square) voltage monitoring for 10 inputs up to 300 VAC/VDC with channel-to-channel isolation and 20-bit resolution. True RMS calculation is critical for non-sinusoidal power monitoring applications such as variable speed drives (VSD), heating controls, computers, HVAC, and solid-state components where typical peak measurement averaging can under- or over-shoot actual voltage by 5 - 40%. [Read More](https://blog.opto22.com/optoblog/more-i/o-options-for-groov-epic) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/more-i/o-options-for-groov-epic#comments-listing) Topics: [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [I/O](https://blog.opto22.com/optoblog/topic/i-o), [analog input module](https://blog.opto22.com/optoblog/topic/analog-input-module) ## [Get your October product news and updates](https://blog.opto22.com/optoblog/get-your-october-product-news-and-updates) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Oct 29, 2019, 8:48:51 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/PressRelease_GRV-3-modules.jpg)](https://blog.opto22.com/optoblog/get-your-october-product-news-and-updates) What's new at Opto 22? We've had plenty to talk about this past month, so here's a recap of product, firmware, and software updates, as well as new *groov* I/O module releases! Learn about new *groov* EPIC system capabilities, and make sure you are using the latest versions of firmware and software to optimize system performance. ##### **New *groov*  I/O modules available now** Three new *groov* I/O modules were released this week as we continue to expand the *groov* EPIC system to support your application requirements. These modules include designs for mixed signal types, signal isolation, channel density, and also meet precise requirements for temperature control.  [Read More](https://blog.opto22.com/optoblog/get-your-october-product-news-and-updates) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/get-your-october-product-news-and-updates#comments-listing) Topics: [Updates](https://blog.opto22.com/optoblog/topic/updates), [PAC Project](https://blog.opto22.com/optoblog/topic/pac-project), [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [CODESYS](https://blog.opto22.com/optoblog/topic/codesys), [groov View](https://blog.opto22.com/optoblog/topic/groov-view), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic) ## [Start EPIC communication to your serial devices](https://blog.opto22.com/optoblog/start-epic-communication-to-your-serial-devices) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Jul 30, 2019, 10:56:51 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/Video_serial_io_ss-1.png)](https://blog.opto22.com/optoblog/start-epic-communication-to-your-serial-devices) #### Learn how to set up, install, and communicate using a *groov* EPIC serial I/O module. Many industrial automation applications require communication between the controller and multiple serial devices. The [GRV-CSERI-4](https://www.opto22.com/products/product-container/grv-cseri-4)module provides four independent and isolated serial ports for this purpose. Each port is software configurable to communicate with RS-232 or RS-485 (half duplex or full duplex) serial devices. [Read More](https://blog.opto22.com/optoblog/start-epic-communication-to-your-serial-devices) 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/start-epic-communication-to-your-serial-devices#comments-listing) Topics: [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [I/O](https://blog.opto22.com/optoblog/topic/i-o), [serial module](https://blog.opto22.com/optoblog/topic/serial-module) ## [I/O module quality indicator LED sheds light on system status](https://blog.opto22.com/optoblog/i/o-module-quality-indicator-led-sheds-light-on-system-status) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Jul 22, 2019, 10:21:08 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/Video_EPIC_ModuleQuality_ss.png)](https://blog.opto22.com/optoblog/i/o-module-quality-indicator-led-sheds-light-on-system-status) #### New video workshop takes a closer look at the LED quality indicator on *groov* EPIC I/O modules. Are you seeing a yellow light on one of your *groov* EPIC I/O modules? This means that one or more of its values is outside of the expected range. Opto 22 applications engineer Ben Orchard explains why this is important and how to use this feature in a video that's just been added to the [*groov* EPIC hardware playlist](https://www.opto22.com/support/resources-tools/videos/playlist-epic-hardware). [Read More](https://blog.opto22.com/optoblog/i/o-module-quality-indicator-led-sheds-light-on-system-status) 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/i/o-module-quality-indicator-led-sheds-light-on-system-status#comments-listing) Topics: [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic) ## [groov I/O module status at a glance...](https://blog.opto22.com/optoblog/i/o-module-status-at-a-glance) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Jun 17, 2019, 9:11:55 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/LEDIndicators_video_ss.png)](https://blog.opto22.com/optoblog/i/o-module-status-at-a-glance) ### New to *groov* EPIC or want to know what those multi-colored LEDs on the *groov* EPIC system indicate? You'll want to watch this short video that explains! [Read More](https://blog.opto22.com/optoblog/i/o-module-status-at-a-glance) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/i/o-module-status-at-a-glance#comments-listing) Topics: [IIoT](https://blog.opto22.com/optoblog/topic/iiot), [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [I/O](https://blog.opto22.com/optoblog/topic/i-o) ## [Product Update: Terminal extender and thermistor input for groov EPIC](https://blog.opto22.com/optoblog/product-update-terminal-extender-and-thermistor-input-for-groov-epic) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on May 29, 2019, 11:03:41 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/GRV-TEX-26F6_P.png)](https://blog.opto22.com/optoblog/product-update-terminal-extender-and-thermistor-input-for-groov-epic) ### The *groov* EPIC system adds a time-saving cable and *groov* I/O thermistor module. [**GRV-TEX-26F6**](https://www.opto22.com/products/product-container/grv-tex-26f6) Would you like to save time and expense when installing or maintaining your field devices?  The new GRV-TEX-26F6 cable reduces the time and effort needed to connect field devices to *groov* I/O modules. [Read More](https://blog.opto22.com/optoblog/product-update-terminal-extender-and-thermistor-input-for-groov-epic) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/product-update-terminal-extender-and-thermistor-input-for-groov-epic#comments-listing) Topics: [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [I/O](https://blog.opto22.com/optoblog/topic/i-o) ## [New I/O modules for the groov EPIC system](https://blog.opto22.com/optoblog/new-i/o-modules-for-the-groov-epic-system) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Mar 1, 2019, 2:01:51 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/GRV-IICTD-12_p_450.png)](https://blog.opto22.com/optoblog/new-i/o-modules-for-the-groov-epic-system) ### Meet our latest line up of modules designed to give you more I/O choices for your *groov* EPIC system. Along with the recent news of including [IEC 61131-3 programming options](https://blog.opto22.com/optoblog/its-time-to-update-your-groov-products) for *groov* EPIC, there are 5 new I/O modules being added to the *groov* EPIC product line. Learn more about each module to see what new capabilities can help with your applications. [Read More](https://blog.opto22.com/optoblog/new-i/o-modules-for-the-groov-epic-system) 4 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/new-i/o-modules-for-the-groov-epic-system#comments-listing) Topics: [I/O modules](https://blog.opto22.com/optoblog/topic/i-o-modules), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [I/O](https://blog.opto22.com/optoblog/topic/i-o) [All posts](https://blog.opto22.com/optoblog/all) [Next](https://blog.opto22.com/optoblog/topic/i-o-modules/page/2) ### Subscribe to Email Updates ### Recent Posts ### Posts by Topic - [groov EPIC (509)](https://blog.opto22.com/optoblog/topic/groov-epic) - [groov RIO (304)](https://blog.opto22.com/optoblog/topic/groov-rio) - [optonews (218)](https://blog.opto22.com/optoblog/topic/optonews) - [IIoT (214)](https://blog.opto22.com/optoblog/topic/iiot) - [groov (192)](https://blog.opto22.com/optoblog/topic/groov) - [IoT (148)](https://blog.opto22.com/optoblog/topic/iot) - [Ignition (132)](https://blog.opto22.com/optoblog/topic/ignition) - 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