Your system. Your data. Your way.

💡 Automate a standalone machine—or a complete plant

Design, control, and scale industrial systems—whether you’re a machine designer or engineer for an entire facility—without rethinking your control architecture. One flexible platform supports OEMs, pilot projects, and full-scale operations.

🌍 Connect remote assets to central intelligence

Manage remote water systems, oil & gas sites, or distributed OEM installations. Keep everything unified and connected with cybersecure remote access and built-in outbound IIoT-ready protocols.

📈 Turn equipment into insight engines

Surface real-time data from legacy systems, add context at the edge, and publish insights to any destination using open standard protocols like MQTT Sparkplug, OPC UA, REST APIs with support for Modbus/TCP, and RS232/422/485 serial.

🔁 Build repeatable, portable control systems

Standardize control logic and edge data collection across sites or customers in any programming language—Python, Javascript, C++, IEC61131-3, Ladder Logic, Function Block Diagram, Scripted Text. Replicate proven setups quickly and cost effectively.

🧠 Create operator interfaces that make sense

Build intuitive, secure HMIs that work onsite or offsite, on any device, using built-in packages or third-party SCADA software. Simplify your users’ experience. 

50+ Years in Business

In 1974, Opto 22 introduced a complete line of optically isolated solid-state relays (SSRs) for the Component OEM market. The manufacturing technique, developed by Opto 22, used liquid epoxy fill and greatly increased the reliability and reduced the cost of volume production. Opto 22 quickly became, and remains today, the world’s leading manufacturer of SSRs.

Opto 22’s dedicated customer case studies section, showcasing real-world examples of how their industrial automation, remote monitoring, and IIoT products and solutions (such as groov EPIC, groov RIO, and related edge I/O technologies) help customers address challenges across various industries.

It features a collection of detailed case studies covering applications like water management, oil & gas automation, mining, refrigeration, brewing, irrigation, environmental services, and more, often highlighting benefits such as improved connectivity, edge computing, MQTT integration, cost savings, remote access, and system modernization.

Opto 22 Product Philosophy: Here Today, Here Tomorrow

In 1974, engineer Bob Engman started Opto 22 with just 22 products: optically isolated solid-state relays (SSRs) manufactured for better reliability using a new potting process he helped invent. 

Today, more than 50 years later, the company still sells and supports all 22 of those original SSRs—plus hundreds of other reliable products for control, monitoring, data acquisition, and industrial internet of things (IIoT) applications.

Founded in 1974 by engineers in California, Opto 22 has a long history of innovation in solid-state relays (SSRs), industrial I/O modules, and automation control.

It revolutionized industrial automation with color-coded I/O modules (1978), Optomux (1982), and early flowchart-based control, evolving into Ethernet-based I/O (1998), PACs (2007), and the groov EPIC Edge Industrial Controller (2018)

Your Machines. Your Brand. Your Platform.

• Stand out: give your customers more value
• Reduce initial costs
• Reduce ongoing costs

Your branded design gives customers the features they need, without waste.

MQTT is an open source publish-subscribe communications protocol. It is lightweight and flexible, was designed for use by resource-constrained edge devices, and has become the most popular IoT-specific communications protocol.

Together with the Sparkplug B specification, MQTT can form the backbone of industrial IoT infrastructure. For example, netDNA uses MQTT to provide automation and data communication for trailer-based pumping units in the oil and gas industry.

Your groov EPIC system and your groov RIO module can both communicate using the OT standard OPC UA.

These groov products offer the following OPC UA Server options. Each server is independent, provided by software running on the EPIC or RIO. You can use multiple servers at the same time to meet your project requirements.

It’s a PLC!

It’s a PC!

It’s a smartphone!

No, it’s the industrial controls system you’ve been waiting for: Opto 22’s groov EPIC—the world’s first Edge Programmable Industrial Controller.

Get OT data to on-premises and cloud applications—no PLC or PC needed.

• Universal I/O: Thousands of unique field I/O combinations: analog, discrete, switches, relays
• Power and energy monitoring: Predict downtime, save energy costs with 64 field measurements and calculated values—in one module.
• Goes anywhere: -20 to 70 °C operation
  – UL Hazardous Locations approved
  – ATEX compliant
  – Compact unit ready for DIN-rail or panel mounting

Build simple flows to move data to and from databases, cloud applications, and APIs.

Included in groov EPIC and groov RIO is Node-RED, an open-source software program you can use to wire together devices, databases, cloud applications, and APIs (application program interfaces) with simple logic flows.

Many people use Node-RED for Internet of Things (IoT) applications. Node-RED provides engineers with an easy way to connect edge computing systems, such as industrial automation controllers and edge I/O, to cloud services such as Amazon Web Services™ (AWS) IoT, IBM Watson IoT™, and Microsoft^® Azure^®.

Program your groov product for industrial control and monitoring using any familiar IEC 61131-3 compliant language and the CODESYS Development System.

The IEC 61131-3 standard includes several languages, some of which you may already know. groov EPIC and groov RIO (with firmware 3.5.0 and higher) support all IEC 61131-3 compliant languages, including:

• Function Block Diagram (FBD)
• Structured Text (ST)
• Sequential Function Charts (SFC)
• Ladder Diagram (LD)

Are you working on machine health initiatives and predictive maintenance?
Do you want to track (and reduce) operating costs?

groov products offer a simple, flexible, industrial way to monitor power and energy where it’s used and securely send that data where it’s needed for analysis and decision-making.

Demo: groov EPIC, groov RIO Architecture

Here’s a complete view of an IIoT Architecture that provides MQTT messaging, zoning, conduits, VPN access, and much more.

A central hub to explore a wide variety of free support materials, including:

• Technical documents and manuals
• Downloads (software, firmware, utilities)
• KnowledgeBase articles and blogs
• Videos and demos
• Other tools built by Opto 22

Curious what the Opto 22 factory and headquarters looks like?

Now, you can take a virtual tour of Opto 22 Headquarters campus in Temecula, California, U.S.A., right from your desktop or mobile device!

What OPTO 22 customers are saying…

Technical articles and application notes to guide engineers in fields like power electronics, renewable energy, battery testing, and EV development.

These resources detail energy-efficient features—such as regenerative loads (e.g., IT8200 and IT8300 series) that return up to ~90% of absorbed power to the grid—bidirectional capabilities (e.g., IT2700 and IT6600C series), SiC-based high-power-density designs, grid simulation, modular testing, and practical methods for data logging and energy recovery, helping users optimize sustainable, cost-effective testing in R&D, production, and lab settings.

Earthquake Early Warning System

Every second counts. The Earthquake Early Warning System (EEWS) developed by Sanlien can detect earthquakes before they arrive. The advance warning allows people to take action to escape from disasters.

Building Structural Health Monitoring (SHM) is a vital discipline in civil engineering, focusing on assessing and monitoring the safety, condition, and performance of structures like buildings and bridges. SHM uses real-time data, including factors like vibrations and strains, to detect issues, predict problems, and inform maintenance decisions for these structures, ensuring their longevity and safety in an ever-advancing technological landscape.

Enhancing Foundation and Deep Excavation Monitoring for Safer Infrastructure

Geotechnical monitoring is vital for slope and landslide safety, and the integration of Narrowband Internet of Things (NB-IoT) technology has transformed this field. NB-IoT enables efficient real-time data collection and analysis, ensuring early detection and rapid response to geotechnical challenges. Explore the significance of NB-IoT in safeguarding communities and infrastructure from natural terrain instability threats.

Introduction to Vibration Control Curve in Industrial Plants

The Vibration Control (VC) curve is a vital tool used in the analysis of vibration-sensitive instruments, particularly in industrial settings. It represents the vibration response of instruments or machinery across different frequencies. By plotting vibration amplitude against frequency, engineers and researchers can understand how different components within a system respond to varying frequencies of vibration. This information is critical for ensuring the proper functioning and longevity of sensitive equipment.

In summary, the VC curve and the broader practice of monitoring industrial plant vibrations are indispensable for maintaining efficient, safe, and reliable operations. Through continuous monitoring and analysis, industries can prevent disruptions, enhance productivity, save costs, and ensure the safety of both equipment and personnel.

Ideal for use in any industrial, network or medical environment

Protects sensitive equipment from EMI/RFI line noise and surges

Automatically shuts down all outlets in case of overload

Offers complete isolation from input AC mains power

Eaton TrippLite Medical Grade Inverter Chargers for Mobile Systems.

Providing safe, reliable AC power to mobile medical equipment, such as hospital carts (e.g., for computers, monitors, infusion pumps, or diagnostic devices), ambulances, and other portable or rolling medical setups.

Reliable battery backup, surge protection, and clean power to critical medical equipment where power interruptions could have serious consequences.

These UPS systems are built to protect devices like ventilators, defibrillators, infusion pumps, anesthesia machines, cardiac monitors, MRI scanners, surgical lights, and other sensitive electronics in settings such as operating rooms, ICUs, diagnostic imaging areas, pharmacies, laboratories, nursing stations, and patient rooms.

Digi’s 2026 Product Launches to date:

Network Resilience

• Opengear CM8000 Series
• Opengear OM1300 Series

Retail and Operations

• SmartSense ONE
• Digi Ventus™ Managed Connectivity Solutions

Edge Computing and IoT

• Digi ConnectCore® 95
• Digi XBee Hive™ Gateway

AI and Software

• One Digi AI Discovery Engine
• Digi MCP Server 

Digi International is advancing industrial IoT with innovative solutions like the AI-powered One Digi AI Discovery Engine, Digi Connect Sensor XRT-M, and Digi Ventus Managed Connectivity, addressing edge AI, remote monitoring, and resilient infrastructure needs.

Find the right solutions from Digi, Opengear, Particle and SmartSense