Effortless integration with compact I/O and powerful edge computing.

It’s compact, it’s powerful, it’s essential — meet Opto 22’s groov RIO: the ultimate Remote I/O module for edge data processing and distributed control.
OVERVIEW

What is groov RIO? Smart, Secure, and Scalable Edge I/O

groov RIO is a powerful edge I/O module that simplifies industrial automation, IIoT connectivity, and remote monitoring. Designed for flexibility, security, and efficiency, groov RIO integrates I/O, networking, and processing into a single compact device—reducing hardware costs and deployment time. The RIO MM1 offers versatile, multi-signal universal I/O; the MM2 expands capacity with higher point density for complex deployments; while the RIO EMU provides virtual I/O for simulation, testing, and software-defined architectures.
Benefits

5 Key Benefits of Groov RIO

All-in-One I/O, Networking & Edge Processing

Eliminates the need for separate I/O modules, PLCs, and gateways by combining everything into one device.

Universal I/O for Maximum Flexibility

Each unit offers 8-10 software-configurable channels that support analog, digital, relay, and temperature inputs/outputs—reducing the need for multiple I/O modules.

Secure & Reliable Industrial Connectivity

Supports TLS encryption, VPN access, and user authentication to keep data secure and protected from cyber threats.

Easy Integration with IIoT & SCADA Systems

Works with MQTT, OPC UA, REST API, and Modbus/TCP, making it easy to send data to cloud platforms, databases, and industrial controllers.

Cost-Effective & Scalable

PoE-powered (Power over Ethernet) or DC-powered, groov RIO simplifies installation and scales easily across large industrial sites with minimal infrastructure.

Features

Groov RIO Features

Universal I/O (8-10 Channels)

Software-configurable for analog, digital, temperature, and relay I/O.

Fanless, Rugged Design

Solid-state construction with no moving parts ensures reliability and longevity.

Edge Computing with Node-RED & Python

Runs local logic, data processing, and automation workflows without a PLC.

Wide Operating Temperature Range

Designed to perform in harsh industrial environments, from -20 to 70 °C.

Dual Ethernet Ports for Network Flexibility

Supports daisy-chaining, separate control/data networks, and easy expansion.

Cloud & SCADA Connectivity

Easily connects to AWS, Azure, Google Cloud, Ignition, and SCADA systems.

Why groov Rio?

See the groov RIO In Action

A logistics company operating a rented truck wash facility lacked real-time operational visibility. By integrating groov RIO with the system’s I/O channels, they enabled secure transmission of live data to the cloud, automated status alerts via text and email, and monthly reporting. A mobile-accessible HMI further provided remote monitoring and control, improving efficiency and accountability.
Case Studies

How Paloma Irrigation and Drainage District (PIDD) Annually Save

By Using Edge I/O Technology
$ 0
Connectivity & Power

groov RIO's Connectivity & Power

Power That Connects. Connectivity That Lasts

Power groov RIO via POE (Power Over Ethernet)

Simplify your setup by powering groov RIO through its Ethernet port using a standard POE switch. Perfect for streamlined wiring in IT or OT environments using star topology.

Chain groov RIOs together using their dual Ethernet ports and a 10–32 VDC power supply. Ideal for scalable installations where space or cabling is limited.

Configure secure VPN access over Eth1 for encrypted remote monitoring, troubleshooting, and data transfer—critical for distributed and unmanned sites.

Use an approved USB WiFi adapter to integrate groov RIO into your wireless network. Perfect for mobile, temporary, or cable-restricted applications.

Plug in a USB memory stick (up to 32 GB) for local logging, backup, or transfer of configuration and runtime data—no PC required.

Connect Modbus RTU and other serial devices directly via USB. groov RIO bridges your legacy systems into modern networked infrastructure seamlessly.

Software

groov RIO Software

Smarter Software. Simple, Scalable Control.

groov Manage on RIO: Secure Setup, Diagnostics, and Data Services

Built into groov RIO, groov Manage provides browser-based access to secure configuration, user management, I/O diagnostics, and built-in data services. With native support for REST APIs, OPC UA, and MQTT, it’s your all-in-one interface for connecting field I/O to SCADA, MES, and cloud platforms—no external software required.

groov RIO gives you the flexibility to program the way you prefer. Use CODESYS for IEC 61131-3 logic development or leverage secure shell access to run custom scripts in Python, Java, or C/C++. Whether you’re writing structured text or building full-code automation, groov RIO adapts to your engineering needs.

Link multiple groov RIO units using their dual Ethernet ports for efficient network expansion. Each device is powered independently via 10–32 VDC, while Ethernet connectivity is passed between units—minimising switch port usage and simplifying field deployment.

Ignition Edge transforms groov RIO into a powerful edge gateway. With tag providers, protocol drivers for Allen-Bradley, Siemens, and more, and native support for MQTT Sparkplug B, it’s built to publish structured data securely to your SCADA or cloud systems—bringing full visibility from plant floor to enterprise.

Security

Cybersecure, Just Like the groov EPIC

User Account Management

groov RIO requires secure admin setup and supports user-specific permissions and LDAP integration for centralized control.

Encrypted Communications

All data is secured with HTTPS and TLS, protecting communications between groov RIO, clients, and cloud services.

Built-in Firewall

Runs local logic, data processing, and automation workflows without a PLC.

Custom Security Certificates

Upload trusted SSL certificates to ensure secure, authenticated communication within your network.

VPN Access via OpenVPN

groov RIO acts as an OpenVPN client, enabling encrypted remote access for secure off-site monitoring.

Secure MQTT Communication

With outbound-only MQTT connections, groov RIO avoids open inbound ports, greatly reducing network vulnerabilities.

COMPARE

Compare the groov RIO

groov RIO MM1

Edge processor optimized for IIoT applications.

groov RIO MM2

Enhanced edge processor for data-intensive applications.

groov RIO Emu

High-performance edge processor dedicated to power and energy monitoring.

2GB RAM

4GB RAM

2GB RAM

4GB industrial-grade SSD, suitable for standard data logging and system configurations.

16GB industrial-grade SSD, designed for larger-scale data handling and more complex applications.

8GB industrial-grade SSD, optimized for storing energy data, system configurations, and application data for energy monitoring.

8 configurable multifunction I/O channels, ideal for mixed-signal input and output operations.

8 configurable multifunction I/O channels, ideal for mixed-signal input and output operations.

Dedicated 3-phase power and energy monitoring with 18 data values per phase and 10 summation values.

Dual Ethernet ports for secure and independent network connections.

Dual Ethernet ports, plus additional support for Wi-Fi connectivity.

Single Ethernet port with dedicated energy data transmission capability.

Supports Ignition Edge, Node-RED, and MQTT for comprehensive IIoT deployments.

Enhanced compatibility with Ignition Edge, advanced MQTT/Sparkplug, and more expansive Node-RED functionality.

Pre-configured for power and energy monitoring applications, with Ignition and MQTT integration.

Requires external power supply, supporting a range of industrial power inputs.

Same as M1, with additional options for PoE (Power over Ethernet).

Direct integration with power monitoring systems for automated data collection without external power dependency.

Built-in firewall and TLS encryption for secure data transmission.

Enhanced security features, including user authentication and encryption.

TLS encryption and secure data management focused on energy data.

Ideal for small to medium IIoT applications with a balance of I/O versatility and processing power.

Suitable for large-scale industrial deployments with high data loads and complex processing needs.

Designed for power and energy monitoring in industrial environments, providing precise energy analytics.

Size and Weight

Height

123 mm (4.84 inches)

Height

123 mm (4.84 inches)

Height

123 mm (4.84 inches)

Width

148 mm (5.83 inches)

Width

148 mm (5.83 inches)

Width

148 mm (5.83 inches)

Depth

66 mm (2.60 inches)

Depth

66 mm (2.60 inches)

Depth

66 mm (2.60 inches)

Weight

680 grams (1.50 pounds)

Weight

720 grams (1.59 pounds)

Weight

720 grams (1.59 pounds)

RESOURCES

groov RIO Resources

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groov RIO Videos

FAQ

groov RIO Frequently Asked Questions

What is groov RIO used for?

groov RIO is an edge I/O module designed for industrial automation, IIoT applications, and secure remote monitoring—combining I/O, networking, and processing in a single compact device.

No, groov RIO does not require a PLC or PAC to operate. It supports onboard processing, flow-based logic with Node-RED, and secure integration through RESTful APIs—but if needed, you can also integrate it with a PLC, PAC, or SCADA system as part of a larger control architecture.

groov RIO offers universal, software-configurable I/O, allowing each of its channels to be individually set as analog input or output, digital input or output, thermocouple input, frequency input, and more. This flexibility eliminates the need for selecting and stocking multiple I/O module types, simplifies panel design, and enables fast reconfiguration to suit changing application needs—all within a single compact device.

You can access groov RIO’s built-in interface through any modern web browser, use Node-RED for flow-based programming, or integrate with external systems using REST, MQTT, Modbus/TCP, or OptoMMP protocols. Integration options include Ignition Edge with the Cirrus Link MQTT Transmission Module, or Node-RED on groov EPIC using appropriate custom nodes for MQTT and other protocols.

Yes. groov RIO includes strong cybersecurity features: user authentication, a built-in firewall, VPN client support, encrypted protocols, and secure certificate management.

Yes. groov RIO can publish and subscribe to MQTT brokers and integrate directly with cloud platforms like AWS, Azure, and others.

Take The Next Step

Get Quote for groov RIO

Request a Quote for groov RIO and unlock scalable Edge automation designed to meet your exact industrial needs.

Get Engineering Support With Miltek

Need expert guidance on implementation? Get engineering support with Miltek, our trusted engineering partner for customised automation and integration solutions.

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