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$1,145.00 (USA and Canada only)

Availability: In stock
groov RIO model MM2, 8 multi-function signals, 2 Form C relays, expanded memory. Add GROOV-LIC-EDGE8 to your order to include Ignition Edge 8 license.

Production Specification

groov RIO® revolutionizes remote I/O by offering over 200,000 unique, software-configurable I/O combinations in a single, compact, PoE-powered industrial package with web-based configuration, commissioning, flow logic software, and the ability to run control programs written in IEC 61131-3-compliant languages, plus support for multiple OT and IT protocols. groov RIO offers the flexibility to fit into IIoT projects (especially those that require I/O data acquisition or communications) or traditional control systems, or act as a stand-alone control unit.

The GRV-R7-MM2001-10 provides more RAM and storage than its pioneering predecessor (GRV-R7-MM1001-10) to handle the requirements of the included Ignition Edge® version 8 software (a product of Inductive Automation®). You can use Ignition Edge 8 on a trial basis for two hours at a time, and you can restart the trial as often as you want. To fully use Ignition Edge, add an Ignition Edge license, part number GROOV-LIC-EDGE8.

You can use groov RIO in several ways:

  • As an edge I/O unit (I/O for the IIoT), communicating data between field devices and data destinations. You can:
    • Connect directly to sensors, equipment, and systems to acquire data
    • Push data directly to on-premises or cloud apps, databases, or other software, using the included Node-RED or Ignition Edge software
    • Publish data to an MQTT broker
    • Respond to Modbus/TCP requests for data
    • Configure built-in I/O channels with browser-based groov Manage software, as well as configure self-contained PID loops
    • Manage user accounts and permissions from a central location on your LDAP server
  • As traditional remote I/O, configuring I/O through your control program:
    • With a groov EPIC processor running a PAC Control strategy; add a groov RIO module as an I/O unit
    • With a groov EPIC processor running a CODESYS application, add a groov RIO module as an Ethernet device
    • With a custom control program through either RIO's OptoMMP memory map, its REST API, or through secure shell access (requires a free GROOV-LIC-SHELL license), configure I/O in the custom program
  • As a stand-alone control unit running a control program built in any IEC 61131-3 compliant language:

See how groov RIO fits in your system architecture.

The GRV-R7-MM2001-10 is a 10-channel, multi-signal, multifunction remote I/O unit. Its communications processor has two switched Gigabit Ethernet interfaces, one capable of Power over Ethernet (802.3af PoE Class 0) connections, supplying power to both groov RIO and field I/O. It also has:

  • Supply terminals to connect to a 10-32 V DC power supply.
  • A USB host port, which can be used to connect additional devices like a Wi-Fi adapter, a USB memory stick, or a USB-to-serial adapter (none included).
  • Status LEDs to display the status of power, network, and I/O activity.
  • One 26-pin removable field I/O termination connector with spring clamp wire retention.
The first 8 channels offer discrete and analog inputs and outputs; the last 2 channels offer Form C mechanical relays.

To learn more about or experiment with groov RIO, check out the groov RIO Learning Center (GRV-RIO-LC)The groov RIO Learning Center is packed with fully-functioning groov RIO hardware and software. It's also ideal for pilot projects, Proofs of Concept (POCs), demonstrations, or simply having a fully working system on your bench or desk for development.

You can find the Specifications and Wire Assignments further down the page, or click on the links to get to them faster. NOTE: Thermistor/resistor support requires groov RIO firmware 3.0 or higher.


  Signal Type
  Discrete Input:
  • Discrete
  • Switch Input, Powered
Discrete Input:
  • Discrete
  • Switch Input, Powered
Discrete Output:
  • DC Sinking
Discrete Output
(Mechanical Relay):
  • Form C
Analog Input:
  • Voltage
  • ICTD
  • Thermistor
Analog Input:
  • Current
  • Thermocouple
  • Millivolt
Analog Output:
  • Voltage
  • Current
Channels: 0-1 2-7 0-7 8-9 0-7 0-3 4-7
On/off State x x x x      
On/off Latching x            
Counting x            
On/off Totalization x            
Frequency Measurement x            
Period Measurement x            
Pulse Measurement x            
Scaling         x x x
Offset and Gain         x x  
Minimum/Maximum Values         x x  
Average Filter Weight         x x  
Simple Moving Average              
Analog Totalizing         x x  
Output Pulsing / TPO     x        
Ramping             x
Clamping             x
Watchdog Timeout Value     x x     x
Problem Indication         x x x

Return to the top of the page or go to Wire Assignments.


To go directly to the specs for a specific signal type, click on a link:

For the specs that apply to the RIO module (for example, power supply or agency compliance), see Common Specifications.

Specification GRV-R7-MM1001-10, GRV-R7-MM2001-10
Voltage Input (back to signal list)
Available Channels 0–7
Input Range 0–10 V DC
Over-range Limit 0–11 V DC
Resolution 0.5 mV
Accuracy ±0.05% of range (±5 mV)
Gain Temperature Coefficient 30 ppm/°C
Offset Temperature Coefficient 15 ppm/°C
Input Impedance > 425 kOhms
Data Refresh Time 550 ms
50 / 60 Hz rejection > 90 dB
Current Input (back to signal list)
Available Channels 0–3
Input Range 0–20 mA, 4–20 mA
Over-range Limit 0.0–20.8 mA, 2.0–20.8 mA
Recommended Fuse 32–40 mA, Fast Acting (for example, Eaton S500-32-R)
Resolution 1.0 µA
Accuracy ±0.05% ( ±10 µA )
Gain Temperature Coefficient 30 ppm/°C
Offset Temperature Coefficient 15 ppm/°C
Input Voltage Drop (±10%) 0.9 V @ 4 mA, 2.0 V @ 20 mA, 25 °C
Equivalent Input Impedance (±10%) 225 Ohms @ 4 mA, 100 Ohms @ 20 mA, 25 °C
Data Refresh Time 550 ms
50 / 60 Hz rejection > 90 dB
ICTD Input (back to signal list)
Available Channels 0–7
Input Range with ICTD Probe -40 to +100 °C
Resolution 0.04 °C
Accuracy with ICTD Probe ±1.0 °C (1.8 °F)
Gain Temperature Coefficient 30 ppm/°C
Offset Temperature Coefficient 60 ppm/°C
Data Refresh Time 550 ms
50 / 60 Hz rejection > 90 dB
Thermocouple Input (back to signal list)
Available Channels 0–3 *
Nominal Input Range -75 to +75 mV
Full Scale Range -78 to +78 mV
Input Resolution 3 microvolts
Input Impedance > 1 megohm
Data Refresh Time 550 ms all channels
50 / 60 Hz rejection > 90 dB
* Note: To achieve the best thermocouple accuracy when also using current outputs or discrete outputs, always configure thermocouples on the lowest channel numbers and outputs on the highest channel numbers.
Thermocouple ITS90 Types ± Accuracy / Resolution
B:   90 °C to 1,820 °C 7 °C / 0.4 °C
E:  -80 °C to 1,000 °C 2 °C / 0.1 °C
J: -100 °C to 1,200 °C 2 °C / 0.1 °C
K:  -80 °C to 1,372 °C 2 °C / 0.1 °C
N: -100 °C to 1,300 °C 3 °C / 0.1 °C
R:  100 °C to 1,768 °C 7 °C / 0.3 °C
S:  100 °C to 1,768 °C 7 °C / 0.3 °C
T:  -60 °C to   400 °C 3 °C / 0.1 °C
Millivolt Input (back to signal list)
Available Channels 0–3
Input Range ±150 mV, ±75 mV, ±25 mV
Over-range Limits ±165.0 mV, ±78.0 mV, ±27.5 mV
Resolution 10 µV, 3 µV, 2 µV

±0.1% of Full Scale (±150 µV)
±0.1% of Full Scale (±75 µV)
±0.2% of Full Scale (±50 µV)

Input Impedance > 1 MOhms
Data Refresh Time 550 ms
50 / 60 Hz rejection > 90 dB
Thermistor Input (Requires firmware version 3.0.0 or later) (back to signal list)
Available Channels 0–7 *
Input Range (Ohms) 0-400 K
Accuracy (Ohms @ Range)

greater of 3 Ohm or 0.5%@0-25k,
400@25k–50k, 900@50k–75k, 1.5k@75k–100k, 5k@100k–200k, 20k@200k–400k    

Gain Temperature Coefficient 500 ppm/°C
Resolution (Ohms @ Range) 0.5@0–1k, 1@1k–5k, 2@5k–10k, 5@10k–25k, 50@25k–100k, 200@100k–200k, 700@200k–400k
Power dissipation @ Resistance (µW @ Ohms) 375@1k, 950@5k, 1075@10k, 875@25k, 600@50k, 450@75k, 350@100k, 200@200k, 100@400k
* Note: To achieve the best thermistor accuracy when also using current outputs, always configure thermistors on the lowest channel numbers and current outputs on the highest channel numbers.
Predefined Thermistor Curves Accuracy (°C) @ Range (°C)
2252 0.2 °C @ -40 °C to  70 °C
2.5 °C @  70 °C to 150 °C
3K 0.2 °C @ -40 °C to  70 °C
2.5 °C @  70 °C to 150 °C
10k type 2 0.75 °C @ -40 °C to -20 °C
0.2  °C @ -20 °C to 120 °C
0.6  °C @ 120 °C to 150 °C
10k type 3 0.5 °C @ -40 °C to -20 °C
0.3 °C @ -20 °C to 120 °C
0.6 °C @ 120 °C to 150 °C
Custom depends on curve
Data Refresh Time 550 ms all channels
0-400 kOhm Input (Requires firmware version 3.0.0 or later) (back to signal list)
Available Channels 0-7 * 
Input Range (Ohm) 0-400k
Accuracy (Ohm @ Range) greater of 3 Ohm or 0.5%@0-25k,
400@25k–50k, 900@50k–75k, 1.5k@75k–100k, 5k@100k–200k, 20k@200k–400k 
Gain Temperature Coefficient 500 ppm/°C
Resolution (Ohms @ Range) 0.5@0–1k, 1@1k–5k, 2@5k–10k, 5@10k–25k, 50@25k–100k, 200@100k–200k, 700@200k–400k
Power dissipation @ Resistance (µW @ Ohms) 375@1k, 950@5k, 1075@10k, 875@25k, 600@50k, 450@75k, 350@100k, 200@200k, 100@400k
Data Refresh Time 550 ms
* Note: To achieve the best thermistor accuracy when also using current outputs, always configure thermistors on the lowest channel numbers and current outputs on the highest channel numbers.
Discrete DC Input (back to signal list)
Available Channels 0–7
Input Voltage Range 5–30 V DC
Minimum ON Voltage 5.0 V
Maximum OFF Voltage 1.5 V
Input Impedance > 425 KOhms
Max. Input Frequency (50% square wave) 10000 Hz
Switch Input, Powered (back to signal list)
Available Channels 0–7
Open Circuit Voltage (Switch Open) 10.5 V (minimum)
Channel Current Limit 1.1 mA max.
Channel Operating Current 0.63 mA typical
Minimum Off Resistance 3300 Ohms
Maximum On Resistance 1200 Ohms
Minimum ON Voltage 5 V
Maximum OFF Voltage 1.5 V
Maximum Continuous Survivable Input Voltage 32 V
Input Impedance > 425 KOhms
Max. Freq. (50% square wave) 10000 Hz
Discrete Counter Input (back to signal list)
Available Channels 0–1
Input Voltage Range 5–30 V DC
ON Threshold 5 V
OFF Threshold 1.5 V
Input Impedance > 425 KOhms
Max. Frequency (50% square wave): State, Latches, Counter 10000 Hz
Max. Frequency (50% square wave): On/Off pulse width, Period, Frequency 2000 Hz
Max. Frequency (50% square wave): On/Off totalization 750 Hz
Pulse Width Measurement Resolution 100 microseconds
Pulse Width Measurement Error (50% square wave)

0.1%    0 to   20 Hz
  1%   21 to  200 Hz
  5%  201 to 2000 Hz

Period/Frequency Error (50% square wave)

0.05%   0 to   20 Hz
 0.1%  21 to  200 Hz
   1% 201 to 2000 Hz

Discrete DC Sinking Output (back to signal list)
Available Channels 0–7 (4-7 if using any thermocouple inputs)
Line Voltage Range 5–30 V DC
Maximum Continuous Current 1.0 A
Peak Current (< 10 ms) 4.0 A
Recommended Fuse / Circuit Breaker 1 A at 30 V DC
Output Voltage Drop 175 mV at 1 A
Off-State Leakage (per channel) < 80 µA at 24 V, -20 to +70 °C
Peak Blocking Voltage 32 V
TPO Period (min, max, resolution) 0.004, 4294967, 0.001
Turn On / Off Time 20 ms nominal
Form C Relay Output (back to signal list)
Available Channels 8, 9
Line Voltage Range 0–250 V AC or 5–30 V DC
Clamp Voltage 440 V nominal
Current Rating 5 A per channel
Surge Current 6 A peak for 1 second
Recommended Fuse / Circuit Breaker 5 A at 250 V AC / > 30 V DC per channel
Initial Contact Resistance < 100 milliohms
Turn On Time 8 ms
Turn Off Time 4 ms
Operating Life (to specification) Min. 30,000 cycles at max. ratings
Mechanical Life Min. 10,000,000 cycles
Voltage Output (back to signal list)
Available Channels 4–7
Range 0–10 V
Resolution 2.5 mV
Accuracy ±0.3% of range ( ±30 mV )
Gain Temperature Coefficient 50 ppm/°C
Offset Temperature Coefficient 20 ppm/°C
Output Slew Rate > 15 V/ms
Minimum Load Resistance 7.5 kOhms
Output Impedance < 10 Ohms
Short-circuit Current 20 mA
Data Refresh Time Nominal 20 ms. Proportional to I/O scan time.
Current Output (back to signal list)
Available Channels 4–7
Output Range 0–20 mA
Resolution 5 µA
Accuracy ±0.325% of range (±65 µA)
Gain Temperature Coefficient 60 ppm/°C
Output Slew Rate > 10 mA/ms
Maximum Loop Resistance 700 Ohms
Data Refresh Time Nominal 20 ms. Proportional to I/O scan time.
Common Specifications (back to signal list)
Ethernet Two switched Gigabit ports; daisy-chainable; ETH1 with 802.3af PoE powered device (PD)
USB One Port, USB 2.0 HS
Memory GRV-R7-MM1001-10: 1 GB RAM, 4.0 GB user space
GRV-R7-MM2001-10: 2 GB RAM, 7.0 GB user space
Power Supply 802.3af PoE Class 0   or   10–32 V DC
Power Consumption 10 W
Max. Survivable Input (channels 0 - 7) 32 V DC
Isolation (between channels 0 - 7) None
Isolation (between channel 8 or 9 and all others) 3000 V ACrms 1 min.
Isolation (field to Ethernet / power input) 1500 V ACrms 1 min.
Minimum groov RIO Firmware Version GRV-R7-MM1001-10: N/A
GRV-R7-MM2001-10: 3.0.0
Minimum groov EPIC Firmware Version GRV-R7-MM1001-10: 2.0.0 (3.0.0 for Thermistors)
GRV-R7-MM2001-10: 3.0.0
Minimum PAC Project Version GRV-R7-MM1001-10: 10.3000 (10.3003 for Thermistors)
GRV-R7-MM2001-10: 10.3003
Minimum Library Package for CODESYS Version GRV-R7-MM1001-10: ( for Thermistors)
Field Connector Wire Size 28–14 AWG
Torque, field connector screw 2.5 in-lb (0.28 N-m)
Power Connector Wire Size 22–14 AWG
Torque, DC power connector screws 7.0 in-lb (0.79 N-m)
Torque, panel mount tab screw 2.0 in-lb (0.23 N-m)
Temperature (operating) -20 °C to +70 °C
Temperature (storage) -40 °C to +85 °C
Relative Humidity (non-condensing) 5–95%
MTBF (minimum, 25 °C) 1.2 Mhrs
Agency Approvals UL/cUL(Class 1 Div. 2); CE, ATEX(Category 3, Zone 2), RoHS; DFARS; CB Scheme; UKCA
Warranty 30 months

Go to the top of the Specifications table, to the Features table, or to the top of the page.

Wire Assignments

Type - + Range
B Red Gray  +90 °C to +1,820 °C
E Red Purple  -80 °C to +1,000 °C
J Red White -100 °C to +1,200 °C
K Red Yellow  -80 °C to +1,372 °C
N Red Orange -100 °C to +1,300 °C
R,S Red Black  100 °C to +1,768 °C
T Red Blue  -60 °C to   +400 °C

Return to the top of the page, the Specifications table, or the Features table.

groov Products Comparison Chart

This two-page chart compares features of the following groov products:

2317 groov RIO Universal I/O Data Sheet

This data sheet describes Opto 22's groov RIO® Universal I/O modules: Ethernet-based edge I/O for industrial internet of things (IIoT) and automation applications. With a single part number, you get 8 software-configurable analog or discrete inputs or outputs plus 2 electromechanical relays, power over Ethernet, data processing and communications, and more, all in a compact industrial package.

The data sheet covers these RIO Universal I/O part numbers:

groov EPIC System Product Guide

This document lists all the Opto 22 groov EPIC® System part numbers, including groov EPIC processors, power supplies, and chassis; groov I/O modules; and groov RIO® edge I/O modules. It also describes the main features of groov EPIC and groov RIO.

PC-Based I/O Overview

This document shows examples of system architecture for PC-based I/O control systems and lists Opto 22 products that work together for PC-based control. System examples include:

  • Ethernet systems using SoftPAC, a software-based programmable automation controller programmed with PAC Control
  • Ethernet systems using the OptoMMP protocol
  • Direct control of I/O using no I/O processor (no brain)
  • High-speed control using the Pamux protocol
NOTE: Before choosing to use a PC for control, consider groov EPIC.  A groov EPIC processor offers many features similar to a PC, such as a Linux OS with optional secure shell access; cybersecurity features; Ethernet, USB, and HDMI ports; and the ability to run the control program and HMI on the same hardware. In addition, a groov EPIC system offers real-time control using traditional programming languages; guaranteed-for-life I/O on the same chassis; industrial toughness for hazardous locations; and easier integration with company computer networks, manufacturing, business, and facility systems, and cloud-based services & software.

groov RIO Firmware Release Notes

Release notes for the latest update to groov RIO® edge I/O modules, including part numbers GRV-R7-MM1001-10GRV-R7-MM2001-10 and GRV-R7-I1VAPM-3. Includes information on new features, enhancements, and bug fixes; groov Manage, groov View, Node-RED, and Ignition Edge® (GRV-R7-MM2001-10 only).

Note: This document was formerly called a readme. The name was changed to more accurately describe its content.

To get the latest firmware, go to each product's respective firmware download page (click on the product link, then click the Download tab). Follow instructions in the following documents to install the firmware:

Getting Started with MQTT in groov Products

Opto 22’s groov EPIC® edge programmable industrial controller and groov RIO® edge I/O give you many ways to use MQTT data communications—via groov Manage, Node-RED, or Ignition Edge from Inductive Automation®. This guide helps you understand which approach is best for you and helps you get started fast.

groov RIO Quick Start

This Quick Start page comes packed in the box when you purchase a groov RIO edge I/O module, part number GRV-R7-MM1001-10 or GRV-R7-MM2001-10

groov RIO Universal I/O User's Guide

This user's guide shows you how to assemble, initialize, configure, commission, and maintain a groov RIO universal I/O module, part numbers GRV-R7-MM1001-10 and GRV-R7-MM2001-10. It is also helpful for groov RIO Learning Centers (GRV-RIO-LC and GRV-RIO2-LC). The guide explains how to:

  • Connect a power supply and wire field devices
  • Complete the first configuration steps after you turn it on (initialize)
  • Configure it to connect to networks, update network and security configurations, mount USB drives or USB adapters (to serial or WiFi devices), set up centralized user management through LDAP servers, set date and time, and more
  • Select and configure I/O channels and PID loops
  • Keep your RIO up to date by applying firmware updates.

Guide to Networking groov Products

This guide helps you understand the basics of networking over wired Ethernet networks and wireless LANs. It also provides guidelines for setting up communications between your Opto 22 groov products and your systems and equipment. groov products include:

The goal is for you to be able to securely monitor, control, and move data between your automation equipment and computer networks, including the internet.

The guide includes information on IP addresses, gateway routers, MQTT, VPNs and port forwarding, additional resources, and networking terms.

OptoMMP Protocol Guide

This guide is for programmers who are writing custom applications to communicate with Opto 22 memory-mapped devices. These devices include groov EPIC processors; groov RIO modules; SNAP PAC controllers and SNAP PAC EB and SB brains; G4EB2 brains; SNAP Ultimate, SNAP Ethernet, and SNAP Simple I/O; E1 and E2 brain boards, and SNAP-LCE controllers.

The guide describes how to use the IEEE 1394-based OptoMMP memory-mapped protocol for programming. The guide also contains the complete memory map for all Opto 22 memory-mapped devices.

NOTE: This guide replaced previous individual programming guides for SNAP Ultimate I/O (form #1312) and SNAP Ethernet I/O (form #1227). This document was formerly called the "SNAP Ethernet-Based I/O Units Protocols and Programming Guide."

groov RIO Brochure

This brochure explores Opto 22's groov RIO Universal I/O product line. The brochure describes the module's connectivity & configuration options, software capabilities, security features, environmental operating range, and it includes the wiring diagram.

If you want more in-depth information, see the groov RIO Universal I/O Data Sheet (form 2317).

Case Study: Farm Data Systems and Azcal Management

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In drought-prone California, farmers walk a fine line on water use. Water costs, government regulations, and concern for future water availability all affect how crops are watered. 

Monitoring and controlling deep-well pumps used to be a full-time job for Azcal managers, who spent hours driving to pumps to monitor and adjust them. Could there be a cost-effective way to automate these tasks?

Read this case study to see how Farm Data Systems used internet of things technologies to save management time and yield better irrigation control.

Press Release: Opto 22’s groov EPIC and groov RIO version 3.4 features more OPC UA server and MQTT options

The latest firmware updates for groov EPIC and groov RIO offer new data services capabilities plus updated software for security.

Using IEEE Floats in Opto 22 Products

While computers, CPUs, and electronic devices store numbers in binary format, most often they represent real numbers as floating point numbers, or floats. For example, in industrial automation applications, all analog values read from an I/O unit are floats.

This document describes how the IEEE 754 standard for floats is used in Opto 22 products, including groov RIO, groov EPIC, and SNAP PAC systems.

Configuring Email Applications for Opto 22 Products

You can use many Opto 22 products to send email notifications to keep engineers and technicians aware of
important conditions in your system. For example:

  • You can send email through a PAC Control strategy running on a groov EPIC or SNAP PAC controller.
  • Your groov View HMI can send event notifications via email.
  • Your Node-RED flow on groov RIO or groov EPIC can send email.
IMPORTANT: Due to security changes, you will stop receiving emails from your Opto 22 devices unless you
configure your email account with a new application-specific password. This technical note gives you details and steps to configure your account.

UKCA Declaration of Conformity (groov EPIC and groov RIO)

This document is the Manufacturer's Declaration of Conformity for the products listed herein, in accordance with the rules, regulations and standards of the United Kingdom. The models cited have been tested to the essential requirements listed in the Standards section, and fully comply with the legislation as listed in UK Legislation section.

Press Release: Opto 22 introduces new groov EPIC and groov RIO models with Ignition 8 onboard

Opto 22 introduces two new products to run the latest version of Inductive Automation’s Ignition and Ignition Edge. The new groov EPIC® processor, GRV-EPIC-PR2, and groov RIO® edge I/O module, GRV-R7-MM2001-10, both ship with Ignition Edge® 8.1 pre-installed and include expanded memory and storage to support future

Case Study: Automated Concepts, Inc.

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In this short case study, see how Automated Concepts quickly produced a prototype for temperature control with a mobile HMI, using groov RIO (GRV-R7-MM1001-10) and its included IIoT software, Node-RED.

Case Study: Martins Electrical Service provides easy EaaS for OEM

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Equipment-as-a-service (EaaS) involves renting out equipment and collecting payment periodically, rather than selling the equipment outright. OEM Shumaker Industries needed detailed usage data before they could offer EaaS to their customers, but the PLC used in their machines was unable to provide database connections.

In this case study, see how system integrator Martins Electrical Service designed a scalable usage monitoring system for Shumaker without having to worry about vendor lock-in or IT infrastructure maintenance. 

White Paper: Industrial-strength MQTT/Sparkplug B

Are you a system integrator, developer, engineer, or manager wondering if MQTT could help with your industrial internet of things (IIoT) application? If so, this white paper can give you some answers. It explains the fundamentals of the protocol, demonstrates how the Sparkplug B specification adapts MQTT to industrial applications, and shows you how to establish and scale MQTT networks using industrial edge computing.

This approach creates a secure foundation for IIoT networks that scale up smoothly and operate reliably in support of mission-critical applications.

Press Release: Opto 22’s groov RIO® Ethernet edge I/O now ships with PID, SSH, and LDAP support

Version 3.0 firmware enables distributed closed-loop control, central user management, and tens of thousands more I/O combinations.

White Paper: Building Industrial IoT from Edge to Cloud

Sharing process data has long been a goal of industrial automation, but traditional operational technology (OT) architectures are poor at scaling, priced prohibitively, and demand complex configuration and support. So how can we achieve the new, more ambitious goals of the industrial internet of things (IIoT)?

Read this white paper to see how next-generation distributed I/O and control are opening new possibilities for connected infrastructure.

White Paper: I/O for the IIoT

In an era of increasing connectivity and technical capabilities, it seems like simple ideas should be simple to achieve. But industrial internet of things projects, even simple ones, are still expensive, demand special skills, and involve many steps. 

This white paper introduces edge I/O, a new kind of product that simplifies IIoT applications. Opto 22's groov RIO is an example of an edge I/O product. 

ATEX Letter of Conformity for groov EPIC

This ATEX Letter of Conformity is provided to support CE Declaration of Conformity (groov EPIC and groov RIO), form 2261.

La Ciberseguridad y Mejores Prácticas para groov EPIC

Cuando se junta, procesa, y comparte datos de equipos industriales en las instalaciones o en sitios remotos, la ciberseguridad es una gran preocupación. El sistema de groov EPIC® de Opto 22 le puede ayudar a construir un sistema seguro.

Esta nota técnica explica las características de ciberseguridad que están integradas en el groov EPIC y anota las mejores prácticas para armar un sistema seguro. Al usar estas características, le ayudará cumplir con las normas de seguridad indicadas en la especificación de ISA/IEC 62443.

La nota técnica también incluye diagramas de arquitectura para sistemas que enseñan cómo los equipos en campo, PLCs legados, sistemas SCADA, comunicaciones de MQTT, y software y servicios pueden trabajar juntos con groov EPIC y groov RIO para cumplir con sus necesidades para la automatización y IIoT.

groov Products Cybersecurity Design and Best Practices Technical Note

Versión en Español

When you’re gathering, processing, and sharing operational data from industrial equipment on premises or located remotely, cybersecurity is a big worry. Opto 22’s groov EPIC® system can help you build a secure system.

This technical note describes the cybersecurity features built into groov RIO and groov EPIC and lists best practices for setting up a secure system. Using these features can help you comply with security guidelines as outlined in the ISA/IEC 62443 specification.

The tech note also includes system architecture diagrams showing how field devices, legacy PLCs, SCADA systems, MQTT communications, and software and services can work together with groov products to meet your automation and IIoT needs.

Declaration of Conformity (groov EPIC and groov RIO)

This document is the Manufacturer's Declaration of Conformity for the products listed herein, in accordance with European, international, and/or national standards and regulations.

Communication Tools & Protocols for Opto 22 Products Technical Note

This technical note describes the networking tools and protocols that are compatible with Opto 22 products for communication with a wide variety of software and systems.

Simplified IP Addressing

This technical note introduces you to IP addressing on an Ethernet network.

GRV-R7-MM2001-10 Firmware

This download contains current firmware for GRV-R7-MM2001-10. For a list of bug fixes and enhancements included in this firmware, see the groov RIO Firmware Release Notes.

CAD Drawing: groov RIO

This ZIP file includes drawings in various file formats for groov RIO part numbers: GRV-R7-MM1001-10GRV-R7-MM2001-10 and GRV-R7-I1VAPM-3.

CAD Drawings: groov EPIC and groov RIO I/O wiring

This ZIP file contains I/O wiring diagrams for groov EPIC I/O modules and groov RIO models, in DWG format.

groov Find

groov Find is an optional utility program you can use on a Microsoft Windows computer to locate groov RIO units, groov EPIC processors, and groov Boxes on your network. Using groov Find, you can see these products' IP addresses and access them through a web browser.

NOTE: If you are using a Mac, groov Find is available for free in the App Store.

If you can't access your groov RIO, groov EPIC, or groov Box with a web browser, your network may not provide DHCP and DNS services. groov Find can help you locate your groov product, connect to it, and assign it a fixed IP address if necessary.

For more information, see the groov RIO User's Guide (form 2324), the groov EPIC User's Guide (form 2267), or the groov View User's Guide (form 2027).

Security Certificates

Current security certificates are embedded in the firmware for Opto 22 products. If you are using recent firmware or can update your device to current firmware, you do not need any of these certificates. If you cannot update firmware, then you can apply a certificate from this zip file as needed.

Before you download, read the Legal Agreement.

This zip file contains the following certificates:

  • DigiCert High Assurance EV Root CA (DigiCert.der) - Valid from 11/9/2006 to 11/9/2031
  • GeoTrust Primary Certification Authority (GeoTrustPCS.crt) - Valid from 11/26/2006 to 7/16/2036
  • GlobalSign Root CA (GSR1.crt) - Valid from 9/1/1998 to 1/28/2028
  • GTS Root R1 (gtsr1.der) - Valid from 6/21/2016 to 6/21/2036
  • GTS Root R2 (gtsr2.der) - Valid from 6/21/2016 to 6/21/2036
Certificate installation instructions are located here: Background information

A valid security certificate may be required by mail servers to allow you to send emails from your Opto 22 products, for example, through: 
  • a PAC Control strategy running on a groov EPIC or SNAP PAC controller
  • a groov View HMI sending event notifications
  • a Node-RED flow on groov RIO or groov EPIC
Valid security certificates may also be required by other services you may be using via software on your Opto 22 device (for example, using Node-RED to move data in and out of Google Sheets).

All providers of email or other services update their security certificates from time to time. When that happens, your email or other service will stop working until you either install a new certificate or update firmware that contains the new certificate. Make sure you set up error handling procedures or other ways to verify that services are working. 

Opto 22 updates certificates as soon as we know about new ones. If you see a security error (for example, -2104 in PAC Control) or have some other indication of a certificate issue, be sure to check for new firmware or download this zip file. If you need help, contact Opto 22 Product Support.

Video: Introducing groov RIO

Meet groov RIO — I/O for the IIoT. Watch a quick product overview and discover all the RIO possibilities.

Webinar: Introducing groov RIO

Join Benson Hougland for a live presentation and demonstration of Opto 22's new groov RIO — I/O for the IIoT.