OptoBlog

Power and energy monitoring with Modbus TCP

Posted by Ben Orchard on May 23, 2022 1:00:00 PM

Get some tips on using the groov RIO EMU with other Modbus TCP devices.

The Modbus protocol has been around since the late 1970’s. This is both amazing and cool. Amazing as some reading this have been using it since then (how time flies!). Cool because it's been around so long, and well established and widely used.

Opto 22 products have been supporting Modbus TCP since way-back-when. Out of the box, our devices are Modbus TCP slaves (now called "servers") and can be polled for data on specific register addresses. The groov RIO EMU (Energy Monitoring Unit), one of our newest products, is no different.

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Topics: Energy management, Modbus, groov RIO, OptoForum, power monitoring, groov rio emu

OptoForums Top 5 for 2021

Posted by Ben Orchard on Dec 7, 2021 10:00:00 AM

Get a recap of the most searched topics and popular OptoForum posts of the year.

Let’s take a look back at 2021 through the eyes of the OptoForums. You remember last year's top 5, right?

For starters, we had almost 200 more people sign up this year over last. (Y-Axis below is the number of daily sign-ups).

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Topics: Node-RED, MQTT, groov EPIC, groov RIO, OPC UA, OptoForum

TPO on groov RIO

Posted by Ben Orchard on Jul 28, 2021 9:38:49 AM

Learn more about Time Proportional Output (TPO) and how you can use it on the groov RIO edge I/O module.

Do you need to control a digital output from an analog input?

If so, perhaps TPO is the solution you seek. Did you know that a groov RIO has 8 built-in TPO controllers and each can be configured for a different time period? We just need a little setup assistance in the form of a Node-RED flow. Before we get into that, let's talk more about just what TPO is.

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Topics: Node-RED, groov EPIC, groov RIO, OptoForum, time proportional output

OptoForums Top 5 for 2020

Posted by Ben Orchard on Jan 20, 2021 2:30:33 PM

See what Opto users were talking about as we look back at last year's Top 5 posts on the OptoForums.

There is no question that the Opto 22 forums are very much alive and kicking. The past 9 months of COVID lockdown did not even make the slightest dent in the activity level.

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Topics: Firmware, Node-RED, groov View, groov EPIC, groov RIO, OptoForum

Opto 22: Reconfigured and ready

Posted by Janice Colmer on Aug 11, 2020 10:56:13 AM

Our sales and engineering teams have implemented new online strategies to help with your automation projects.

Even before the onset of COVID-19, Opto 22 had begun reconfiguring its sales operations to better serve you. With today's business world relying on remote and online capabilities, we've now adapted to provide even more flexible, integrated support. 

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Topics: OptoU, COVID-19 Update, OptoChat, OptoForum

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