Groov EPIC and groov RIO version 3.4 of Opto 22 offer more OPC UA and MQTT server options


Groov EPIC and groov RIO version 3.4 of Opto 22 offer more OPC UA and MQTT server options

Opto 22 announces the latest firmware version 3.4 for the Opto 22 groov EPIC edge programmable industrial controller, as well as the firmware version

3.4 for the edge groov RIO I/O module. Both are available as a free download for all existing groov EPIC and groov RIO users, adding even greater capabilities for sharing OT data with SCADA systems, databases, HMIs and historians, as well as with other functions such as Quality and Process.

New data democratization capabilities include an additional integrated OPC UA server and much more flexibility in MQTT services. The release also adds support for SNMP and the Scratch Pad memory card area.

New embedded OPC UA server.

Opto 22 was instrumental in the development of the original OPC specification and in the creation of the OPC Foundation. With the new PAC Control and I/O OPC UA server now integrated, groov EPIC and RIO offer that familiar, platform-independent way to exchange data between devices and software within your OT network. For example, you can easily integrate your control and I/O systems into SCADA software using OPC UA, no special drivers are required.

  • For groov EPIC, the new OPC UA server option complements three other OPC UA server options previously available on board: Ignition/Ignition Edge, CODESYS and Node-RED.
  • For groov RIO, the new OPC UA server is the first of its kind: a fully functional OPC UA server option for an Ethernet-based remote input/output module.

More MQTT options.

This release also includes expanded menu options for MQTT and Sparkplug configurations. You can now configure multiple MQTT brokers (servers) and choose JSON and Sparkplug payload formats to simultaneously publish operational data to multiple MQTT servers. For example, you can configure MQTT to send messages in Sparkplug format to one server and MQTT JSON strings to another server. With these new data service features, you can simultaneously communicate operational data via OPC UA and MQTT protocols. The proven OPC UA is client/server based and since it requires an open inbound port, it is best used in a secure OT network such as your internal network. MQTT is a more secure publish/subscribe method, offering a simpler architecture that does not require opening inbound firewall ports, which is ideal for sharing data with remote servers over standard IP networks, including including cellular and public internet.

Other notable updates.

End users and system integrators will appreciate the new firmware support for SNMP for integration with network management systems. The ability to share EPIC and RIO Scratch Pad data via MQTT and OPC UA has also been added. This feature is especially useful for groov RIO users as non-I/O data can be shared via the Scratch Pad area.

Other new features in this release include enhancements to the integrated, web-based and mobile-ready groov View HMI, including new rules and layout guides for creating responsive HMI screens. Updates to the integrated EPIC and RIO web-based management tool, groov Manage, provides a new groov View management interface (similar to the existing Node-RED management page) and a new I/O diagnostics page .

For improved security and performance, firmware version 3.4 includes several built-in software upgrades: Ignition 8, Ignition Edge 8 and their modules are updated to version 8.1.17. Ignition Edge 7 is now 7.9.20 and Node-RED is updated to 2.2.2. Root store certificates are also updated, and a number of Linux kernel packages and libraries are updated and running the latest security updates and patches. For complete information on new features and bug fixes, see the Groov EPIC Release Notes or the Groov RIO Patch Notes.


groov EPIC firmware 3.4 is now available for free download at Full upgrade instructions are available in the GroovEPIC User Guide. For new customers, all EPIC groovs now ship with this latest firmware release. Note that due to supply chain related hardware changes, firmware version 3.4.0 will be the minimum installable version for new EPICs.

The groov RIO 3.4 firmware is scheduled to be released in July 2022 and will be available as a free download on Opto 22. Each of the three groov RIO models will have product specific 3.4 firmware updates: GRV-R7-MM1001-10, GRV-R7-MM2001-10and GRV-R7-I1VAPM-3.

About Groov EPIC

groov EPIC is an advanced Industrial Programmable Controller (EPIC). More than a PLC, PAC or PC, it’s a Linux-based processor in a compact industrial package, with local and remote I/O and numerous programming and communication options. In addition to real-time control, groov EPIC provides the connectivity that many of today’s projects need: it connects to field sensors and devices, legacy PLC systems, software applications, remote equipment, and cloud services for everything, from weather conditions to big data analysis. and predictive maintenance.

About groov RIO

groov RIO is a flexible edge I/O module that quickly connects traditional wired switches and sensors directly to Ethernet networks, software applications, and cloud platforms without intervening control or communication hardware, such as PLCs, PACs or PCs. Two groov RIO models consist of a single reference providing 8 multi-function I/O channels (input or output, analog or discrete). One model is specially designed for power and energy monitoring. All groov RIO models include built-in tools for connectivity and control that integrate I/O data seamlessly with commercial and automation systems. With Power over Ethernet and industrial-grade hardware, groov RIO deploys quickly wherever your equipment lives.

About Opto 22

Opto 22 designs and manufactures industrial control products and Internet of Things platforms that bridge the gap between information technology (IT) and operations technology (OT). Based on a core design philosophy of leveraging open, standards-based technology, Opto 22 products are deployed worldwide in industrial automation, process control, process automation, buildings, industrial refrigeration, remote monitoring and data acquisition. Designed and manufactured in the USA, Opto 22 products are renowned worldwide for their ease of use, innovation, quality and reliability. For more than 40 years, OEMs, machine builders, automation end users, and information technology and operations personnel have and continue to trust Opto 22 to deliver high quality products with superior reliability. The company was founded in 1974 and is privately held in Temecula, California, USA. Opto 22 products are available through a worldwide network of distributors and system integrators. For more information, contact Opto 22 Corporate Headquarters at +1-951-695-3000 or visit follow us on instagram, Twitter, Facebook, LinkedIn, Youtube.

Share the article on social networks or by e-mail:


Comments are closed.