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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

Commission 30 I/O points in under 8 minutes

Posted by Ben Orchard on Apr 9, 2025 8:56:51 AM

Hear first hand how smoothly and powerfully a groov EPIC controller lends itself to the commissioning process.

Now and then, I get signed up to do something different. Most of us have that clause in our job descriptions: "or any other duties as directed." 😁

In this case, I assembled a cabinet with a groov EPIC on a chassis four rack. The four I/O modules were a mix with a total of 30 channels.

Of course, after the wiring was done, a sanity check was in order—or, said another way, a point-by-point check that everything was working as it should have been. Sounds tedious, right? Follow along...

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Topics: I/O, I/O modules, groov EPIC, technical tips

Variables vs. Literals

Posted by Ben Orchard on May 1, 2024 12:57:26 PM

Understanding different data types in your PAC Control programming.

You don’t need to have the title "software engineer" on your business card before you code up your first automation process. In fact, I suspect that many industrial automation folks are like me—self-taught and come from the school of hard knocks.

This blog post is more of a musing out loud than a "you must" edict. Programming, after all, is often more art than science.

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Topics: PAC Control, technical tips

Add delays to speed up

Posted by Ben Orchard on Apr 17, 2024 9:00:00 AM

Some tech tip advice to help keep your industrial systems running smoothly.

Whenever I say this blog title out loud to the Premium Factory Training class attendees, I get some funny looks. I'm not sure if it's the Aussie accent, or the idea of adding delays to speed up that causes the double-take chuckles.

Compute power has come a long way in the last 10 years or so, but regardless, we programmers of all things industrial still need to be mindful of optimizing our code and systems to run as smoothly as they possibly can.

Arguably, one of the biggest tips for programming in PAC Control I can share with you all is to add delays through your flow charts and OptoScript blocks.

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Topics: PAC Control, groov EPIC, Factory Training, technical tips

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