Opto 22

Temecula, CA 92590-3614


About Opto 22

Opto 22 advances the edge of automation. Opto 22 designs and manufactures industrial control and IIoT products, like groov EPIC® and groov RIO™, that bridge the gap between IT and OT, following a core philosophy of open, standards-based technology. 

Product Summary

Opto 22 manufactures reliable, easy-to-use SSRs, I/O, controllers, & software for automation and IIoT applications.


43044 Business Park Drive
Temecula, CA 92590-3614

More Info on Opto 22

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For 50 years, OEMs, machine builders, system integrators, and IT and operations personnel have looked to Opto 22 for innovative automation products at an affordable price.

Opto 22’s groov® family of industrial edge controllers and I/O is designed from the ground up with integrated control, connectivity, and cybersecurity tools to help you connect automation, enterprise, and cloud data.

  • Securely access, monitor, and maintain your systems at remote locations or customer sites
  •  Collect, process, and publish operational and energy data backed by fault-tolerant storage and store-and-forward capability
  •  Develop real-time control programs in a language you know: ladder logic, function block diagram, flowcharts, Python, C/C++, and more
  • Build dynamic operator HMI screens for embedded or external touchscreens, mobile devices, and browsers
  • Replace costly, high-maintenance Windows PCs for HMI, OPC, and data processing with Linux-based industrial processors
  • Secure existing PLCs, traditional I/O, and standalone equipment, then integrate it with databases, business systems, and cloud services

Built on decades of field-proven experience, groov products offer lifetime guarantees on solid-state I/O, UL Hazardous Locations approval, ATEX compliance, and a wide -20 to 70 °C operating temperature range.

Count on free pre-sales engineering help and product support, too. All Opto 22 products are developed, manufactured, and supported in the U.S.A.
With nearly 50 years as a trusted automation manufacturer, we understand your projects and speak your protocols.

Products & Press Releases


groov RIO Firmware Update

Feb. 7, 2024
Firmware version 3.5 for the groov RIO edge I/O includes the Codesys runtime engine, allowing the groov RIO to function as a real-time controller coupled with software-configurable...
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Edge-Enabled I/O Module

Jan. 23, 2021
Discover Opto 22's new version 3.0 firmware update to groov RIO, introducing proportional-integral-derivative control, thermistor support, and centralized user management.
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Edge Programmable Industrial Controller Update

Dec. 3, 2020
Opto 22 has released Version 3.0 of the groov EPIC platform with multiple new features, including centralized user management via LDAP.
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I/O for the IIoT

April 30, 2020
groov RIO from Opto 22 is an intelligent, Ethernet-based input/output unit that combines multi-signal, multifunction sensing with PoE-powered edge data processing for instant ...
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Supplier News

Opto 22 announces groov RIO—I/O for the IIoT

Feb. 4, 2020
The groov RIO is an intelligent, Ethernet-based I/O unit that combines multi-signal, multifunction sensing with Power over Ethernet edge data processing for instant Industrial...
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I/O modules for the groov EPIC Platform

Feb. 3, 2020
Two new modules from Opto 22 support CAN bus integration and high-density temperature sensing.
Today’s Digital Transformation Reality

Today’s Digital Transformation Reality

Dana Inc. and Streamline Innovations show how digital transformations can start today in the discrete and process industries using Ignition to overcome legacy infrastructure’s...
Benson Hougland, Vice president of marketing and product strategy, Opto 22

5 Essential Security Features for Control, Edge, and IIoT Systems

Aug. 16, 2019
Regardless of the connected automation device you’re looking to install, key security features to look for include network interfaces, firewalls, data communication options, encryption...
Assessing Open Source Software for Industrial Use

Assessing Open Source Software for Industrial Use

The “Automation World Gets Your Questions Answered” podcast gets insights from Benson Hougland and Terry Orchard of Opto 22 about the practical realities of using open source ...
The Future of Industrial Networking

The Future of Industrial Networking

May 22, 2019
During the Automation World Conference & Expo, a panel of technology experts discussed how advanced networking technologies will lead to open, standards-based communication from...

Articles & News

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How Industrial Companies are Using the Cloud to Modernize

The ability to aggregate and analyze operations and IT data in the cloud provides next-level insights set to elevate asset performance, boost product quality, and ensure proactive...
Benson Hougland Opto22

Getting to the Edge with Industrial Communications

Nov. 1, 2022
A look back at the key technology developments that delivered Industry 4.0 gives us a good indication of where industry is headed.
Benson Hougland Opto22

Case Study: Launching a Nationwide Equipment Network

July 26, 2022
A look at how Alta Refrigeration achieves faster, easier product development and servicing with groov EPIC and MQTT.
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Supplier News

Opto 22’s groov EPIC and groov RIO Version 3.4 Features More OPC UA Server and MQTT Options

June 29, 2022
Latest firmware updates offer new data services capabilities plus updated software for security.
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Flexible, Low-Cost Water Monitoring with Edge I/O

March 21, 2022
Remote I/O over MQTT helps Rust Automation deploy affordable remote monitoring in a challenging environment.
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Tales From the Edge

Modern edge environments pack a compute, storage, and connectivity punch to fuel data-driven insights and smart automation.
Supplier News

New groov RIO EMU (energy monitoring unit)

March 14, 2022
The GRV-R7-I1VAPM-3 is a groov RIO energy management unit (EMU) designed as an intelligent, distributed energy monitoring module. With built-in web-based configuration, commissioning...
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Why the MQTT Protocol is So Popular

This first installment in a four-part series on key industrial network technologies explains how an ultra lightweight data transfer protocol became a widely used data gathering...
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Supplier News

Opto 22 Releases Groov RIO EMU Distributed Energy Monitoring Unit

Feb. 8, 2022
GRV-R7-I1VAPM-3 offers three-phase industrial AC monitoring in a standalone edge I/O module.

Videos & Resources

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Take Five

Can We Automate from the Cloud?

Sept. 24, 2021
Factory automation and cloud applications combine to optimize plant processes. Watch this Take Five video for the full story.
Remote Access
Take Five

Why Remote Access is Popular in Continuous Processing

Find out in this Take Five video why the use of remote access tends to be higher in the processing industries than in discrete manufacturing and where processing companies tend...
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Technology Matters: Open Source SCADA, HMI Upgrades, and Wearable Sensors

A review of automation technology developments we’ve recently covered to help you stay on top of what’s happening in the world of industrial automation.
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RS Components Now Distributing Opto 22 Products

Dec. 14, 2015
Opto 22 distributor RS Components explains its introduction of Opto 22 products in the Asia-Pacific area and Europe—in particular Opto 22's groov mobile HMI for burgeoning global...
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New Opto 22 video

Dec. 9, 2014
What is Industrial Automation?
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Bringing HMIs to Your Mobile Device

Opto 22's Gerhard Kreiling explains how the company's groov product can be used to take your industrial HMI applications mobile. From native Opto 22 drivers to OPC UA and Modbus...
Packaging Machinery Trends: Communications and Mobile

Packaging Machinery Trends: Communications and Mobile

As a non-exhibiting automation supplier at PackExpo, Opto 22’s Benson Hougland came to observe, learn, and see where today’s technology trends could be heading.
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New Design Software Tools Extend HMI’s Reach to Mobile Devices.

Gerhard Kreiling with Opto 22 showcases the company’s groov HMI design system to create interfaces that extend HMI visibility and functionality to mobile devices.
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Video Podcast - Industrial HMI Trends: From Design Optimization to Mobility

Aug. 16, 2013
This video podcast explores whether or not HMI optimization is practical for all manufacturers; how the core concepts behind what constitutes an effective HMI have changed over...
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The Automation Conference 2013: Opto 22

May 28, 2013
Opto 22 Shows How to Take Mobility to HMIs | In its display at The Automation Conference 2013, Opto 22’s Benson Hougland showed groov, which provides secure access to automation...


Benson Hougland

Vice President, Marketing and Product Strategy

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All content from Opto 22

To bridge the IT/OT divide, OT personnel will need to become more familiar with IT methodologies, and IT personnel will need to spend more time familiarizing themselves with the nuts and bolts of OT.

Solving the Industrial Skills Gap

Jan. 25, 2022
While the skills gap facing industry has been well publicized, overcoming the challenges it presents requires a targeted approach that considers the nuances of the problem.
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Determining which type of controller to use in an automated system can lead to some difficult choices. Focusing on the application and specific capabilities of each controller...
Josh Eastburn, Director of Technical Marketing, Opto 22

Building Secure Wastewater Management in the Cloud

Nov. 4, 2021
System integrator Perceptive Controls helps one community make the leap into a MQTT Sparkplug-based SCADA infrastructure.
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Business Intelligence

Evaluating Technology Support For The Internet of Things

Oct. 19, 2021
As manufacturers digitally transform their operations, finding the right technologies can be an overwhelming process. Don’t overlook your supplier’s ability to provide the right...
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IIoT Retrofits for Legacy Equipment

If you’re like most manufacturers, you’re not operating a greenfield site with the latest internet-ready equipment. However, you’re likely facing numerous digitalization initiatives...
Don Pearson, vice president of sales and marketing at Inductive Automation.

How the Ignition Partner Ecosystem Helps Deliver Digital Transformation

Advantech, Bedrock Automation, Cognex, Hilscher, Opto 22, and Stratus Technologies—among others—demonstrate how their products work with Inductive Automation’s Ignition platform...

The State of Cloud-Based Automation Today

Sept. 14, 2021
A look at how digitalization and the need for scalability are driving more interest and investment in cloud-based industrial applications and how automation technology suppliers...
Business Intelligence

Automation Spending Trends Diverge in Continuous Processing

Research shows that digital transformation is the primary driver of automation technology spending across the discrete, batch, and continuous process industries. But which technologies...
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How Automation is Helping Industry Adapt to Today’s Workforce Reality

Though it represents one of the greater job skill challenges for new entrants, technology is increasingly viewed as a key attractor for the next-generation industrial workforce...