Download the updated MQTT technical guide (form 2350) to better understand using MQTT in groov EPIC and groov RIO.

If you've been a long-time OptoBlog subscriber or have used Opto 22 groov products, you've heard about the MQTT technology included in groov EPIC and RIO.  We've even created a section of the website dedicated to MQTT Resources like white papers, videos, and technical articles to give you a better understanding of this popular protocol.

One of the resources worth referencing is the Getting Started with MQTT in groov Products technical guide.  This comprehensive, structured user's guide helps you make an educated decision about which of the MQTT clients and options in groov products are best suited for your application. The guide explains the features, differences, and configuration procedures of each. Plus, you'll find some additional resources to help you build out your MQTT network or make a pitch for using MQTT.

Just recently, the guide has been updated to include changes made to the groov Manage menu. You'll notice configuration for both MQTT and OPC UA have been moved to a new menu button called "Data Service." The guide features illustrations and more details about these recent updates.

Topics: MQTT, groov EPIC, groov Manage, groov RIO

It's easy to access wiring diagrams directly through the groov Manage home page on groov EPIC or RIO.

Have you ever been wiring up one of the I/O modules on your groov EPIC and you can't remember which port that wire goes into? Good news....you can quickly find the answer by viewing the wiring diagram through your browser or the groov EPIC processor's touchscreen.

Here are some scenarios where you can use groov Manage to see some handy specs and wiring diagrams.

Topics: groov EPIC, groov Manage, groov RIO

Next up in the Node-RED videos series is a tutorial about using Swagger to help set up API calls.

In under 20 minutes, this new developer video from Terry Orchard will take you through all the steps you need to get a solid understanding of using Swagger UI pages to create API calls you can bring into Node-RED. Using them together, you can control all sorts of APIs from your groov device, both getting and posting data, using simple Node-RED.

Topics: Videos, Node-RED, groov Manage, developer

Next up in the Node-RED developer video series, this tutorial makes it easy to create your own HMI or dashboard.

When we first introduced the Node-RED developer video series a few months ago, we started off with how to "Set up groov I/O nodes." Once you've installed and configured them, it's time to do something interesting with your data.

This new video does just that. Next up in the Node-RED video series is the Basic Node-RED Dashboard UI Tutorial.

Topics: Videos, Node-RED, groov Manage, developer, groov RIO

Get an overview of exciting new features just added to groov EPIC and see why you'll want to update. (Hint: LDAP)

Everyone here at Opto 22 is very excited to announce the groov EPIC firmware 3.0 release. In fact, there is so much cool stuff in this release, I am a little lost knowing in what order to list them, so let's just jump right in and see what's in store…

Topics: Updates, Firmware, Node-RED, MQTT, groov EPIC, groov Manage, Ignition, LDAP

Welcome two more integration companies with groov EPIC and RIO expertise to the OptoPartner program.

It's always exciting to see how Opto 22 products are used in field applications and our growing list of OptoPartners gives customers even more options for finding their ideal product solution. OptoPartners are experienced and skilled in using our industrial control products and are qualified to help with integrating, installing, and maintaining Opto 22 systems.

Topics: Integrators, groov EPIC, groov Manage, system integrator, OptoPartner, groov RIO

Waiting to dip your toe into the MQTT pool? Jump into this new user guide, and get started with MQTT and Sparkplug B on your Opto 22 groov products.

If you're already an OptoBlog subscriber, chances are you've become familiar with the MQTT protocol. We understand it can be a little daunting to take the leap into a new approach, though, so we expanded and revised our popular four-part MQTT blog series to create a complete guidebook for lightning fast MQTT publication on Opto 22's groov EPIC and RIO.

Topics: IIoT, Node-RED, MQTT, Ignition Edge, groov EPIC, groov Manage, groov RIO

Get an up-to-date overview of the groov EPIC system in only two minutes with this new video.

Since its release in 2018, groov EPIC has continued to evolve, with new features that make it an even stronger choice for your IIoT and automation applications.

Topics: Videos, Node-RED, CODESYS, groov View, groov EPIC, groov Manage, Ignition

Take advantage of a new section of Opto 22's website devoted to groov RIO resources and tools.

As an OptoBlog subscriber, you've heard us talking about our latest edge I/O offering, groov RIO (GRV-R7-MM1001-10). It's I/O for the IIoT™. We've previously shared a press release, video, webinar, and a white paper resource for this exciting new product. And now there is one place to go for all your groov RIO questions...

Topics: IIoT, Node-RED, MQTT, groov Manage, groov RIO, Edge I/O

Our MQTT series continues with a deep dive into groov EPIC’s (and now groov RIO’s) features for high-reliability MQTT networks.

At its heart, MQTT was designed for unreliable networks. Back in the ’90s, ConocoPhillips (now Phillips 66) was looking for a way to improve telemetry reporting over its low-bandwidth dial-up and costly VSAT (small satellite dish) SCADA network. IBM partnered with system integrator Arcom Control Systems (now Cirrus Link Solutions) to develop a minimalist communication protocol that could gracefully handle intermittent network outages and high latency among many distributed devices over TCP/IP. 

Topics: Node-RED, MQTT, Ignition Edge, groov EPIC, groov Manage, Sparkplug, MQTT implementation, groov RIO