OptoBlog

Norma Rodriguez

Norma is the Director of Training and has enjoyed helping customers solve their problems or learn about Opto 22 products for over 30 years. She enjoys exercising, gardening, and reading.

Recent Posts

Improving Your PAC Project System’s Performance

Posted by Norma Rodriguez on Feb 17, 2026 1:51:06 PM

Tips when using PAC Project with groov View, MQTT, Node-RED, RESTful API, and more

Are you wondering what else you can do to improve your PAC Project system’s performance? Did you optimize your SNAP PAC system and apply the same techniques to your groov EPIC system? There may be some other options you might not think of, like these:

-Moving groov View or MQTT to an alternate host task
-Enabling only essential tags as "Public" for Ignition or MQTT
-Scanning only PAC Control variables and tables if you’re using Node-RED

Whether you’re running an edge device like groov EPIC or a classic SNAP PAC system, performance optimization is a balance among logic, I/O communication, and HMI responsiveness. You might find some time savers in the Optimizing PAC Project System Performance technical note.

Here are a few highlights from the tech note.

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Topics: PAC Project, Node-RED, MQTT, groov EPIC, snap pac, technical tips

groov View HMI: New lessons, free online training

Posted by Norma Rodriguez on Dec 10, 2025 10:05:11 AM

Learn step-by-step how to build your browser-based operator interface and securely access it with any mobile device or from a remote location.

Do you need secure, mobile access to a process?

Maybe you want to see live video, confirm alarms, or verify what happened during an event. Or you just want your team to monitor a process without being tied to a control room. Now you can learn an easy way to create your HMI—for free.

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Topics: Training, groov View, groov EPIC, OptoU

Get help writing a CODESYS project

Posted by Norma Rodriguez on Apr 16, 2025 6:05:25 AM

Learn how to leverage your PLC programming skills on groov EPIC with CODESYS.

Are you ready to write a control program for your groov EPIC, but unsure where to begin?

Good news: your PLC programming background gives you a head start—especially if you choose to work with CODESYS, one of the three control programming options available on groov EPIC.

Find out how to use the PC-based CODESYS Development System to create and compile IEC 61131-3 programs that you might already be familiar with.

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Topics: Training, CODESYS, IEC 61131-3, groov EPIC, OptoU, groov RIO

Get your online training Certificate of Completion

Posted by Norma Rodriguez on Nov 20, 2024 11:21:12 AM

Complete the groov EPIC online courses, get your certificate, and post it to LinkedIn.

As the end of the year is in sight, is there anything you'd like to check off your to do list? Perhaps complete more educational training for PLCs or add another certification to your professional profile or resume?

Knowledge is power, and learning more about how to use groov EPIC edge controllers for your applications is FREE at training.opto22.com. Once you’ve completed all of the courses, you can get your groov EPIC Online Training Certificate of Completion. If you'd like, you can easily post your certificate to your LinkedIn profile.

Work at your own pace as you go through the online exercises and quizzes. Most of the lessons are based on the hands-on material in the groov EPIC training course taught at Opto 22 headquarters. 

Follow these simple steps to earn your certificate.

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Topics: Training, groov EPIC, certificate, OptoU, groov RIO

Get Your Online Training Certificate of Completion

Posted by Norma Rodriguez on Sep 16, 2024 12:57:37 PM

Complete the groov EPIC online courses, get your certificate, and post it to LinkedIn.

Knowledge is power, and learning more about how to use groov EPIC edge controllers for your applications is FREE at training.opto22.com. Once you’ve completed all of the courses, you can get your groov EPIC Online Training Certificate of Completion. If you'd like, you can easily post your certificate to your LinkedIn profile.

Work at your own pace as you go through the online exercises and quizzes. Most of the lessons are based on the hands-on material in the groov EPIC training course taught at Opto 22. 

Follow these simple steps to earn your certificate.

Read More

Topics: Training, groov EPIC, certificate, OptoU, groov RIO

Add your training experience to LinkedIn

Posted by Norma Rodriguez on Aug 28, 2024 12:06:45 PM

See how easy it is to post your groov EPIC Premium Factory Training certificate online.

If you’re thinking of coming to groov EPIC Premium Factory Training, or have already been to the training class, now you have the option to add a Certificate of Completion to your LinkedIn profile.

Follow these simple steps.

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Topics: Training, groov EPIC, Factory Training

Now Serving: PAC Control and Memory Mapped Data with OPC UA Server

Posted by Norma Rodriguez on Jul 6, 2022 7:30:00 AM

groov EPIC OPC UA Server makes it easy to access your data; lessons on OptoU show you how

Do you need access to your PAC Control strategy variables and I/O, or data from the memory map area on your groov EPIC? Do you want to connect to OPC UA client applications such as SCADA, MES, or enterprise software?

groov EPIC is now serving up this data securely and reliably with its built-in groov EPIC OPC UA Server. Publish the data where you need it.

In this post, we’ll go over exactly what data is accessible from the server, the basics of configuring the server, and some examples of how you can use it. And when you’re ready to work with the OPC UA server, you can find step-by-step instructions in the groov EPIC OPC UA courses on OptoU.

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Topics: Training, Node-RED, Ignition Edge, groov View, OptoU, OPC UA

Programming with CODESYS and need a Modbus master?

Posted by Norma Rodriguez on May 16, 2022 7:30:00 AM

groov EPIC becomes a Modbus master/client with a few easy lessons.

With Modbus continuing to be a popular protocol for industrial devices, the chances are pretty good you will need to write a program to communicate with Modbus slave/server devices more than a few times. The groov EPIC controller offers several Modbus communication options, and CODESYS, an IEC 61131-3 compliant development environment, is one of them.

With your PLC programming experience and the Using groov EPIC as a Modbus Master in CODESYS course on OptoU, creating a CODESYS project with Modbus master functions will be a breeze.

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Topics: Training, Modbus, CODESYS, groov EPIC, OptoU

New cybersecurity video en Español

Posted by Norma Rodriguez on Feb 28, 2022 7:30:00 AM

Ver y aprender que significa tener un sistema de control industrial seguro.

Hace tiempo que se sabe que la automatización industrial viene con vulnerabilidades en la tecnología y en práctica. Los PLCs de antes no fueron diseñados para las conexiones de redes LAN no confiables o para el internet. Y la contraseña escrita en una nota ya no es suficiente para la política de seguridad de hoy en día. Así es que, ¿cuál es la solución?

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Topics: groov EPIC, cybersecurity, Ciberseguridad

Ready to write a CODESYS project?

Posted by Norma Rodriguez on Jan 11, 2022 9:02:12 AM

Use your PLC programming experience to program groov EPIC.

Ready to write a control program for your groov EPIC, but not sure how to get started? With three options to write your control program–PAC Control, the easy-to-learn flowchart language, the Linux-based Secure Shell (SSH) to run your custom program, and CODESYS, an IEC-61131-3 compliant language–which do you choose?

Read More

Topics: Training, CODESYS, groov EPIC, groov EPIC Learning Center, PLC programming

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