Category Archives: RTA’s Blog

OPC DA Communications

A reader sent me this question a few weeks back: “I see that OPC DA [...]

Memorial Day 2021 – Let Us Remember

“Those are those who speak about you who say, he lost a leg, she lost [...]

Nine Simple Steps to Machine Security

You and I have heard plenty over the last 18 months or so about manufacturing [...]

Data Highway (DH+) Revisited

It’s been twelve years since I did an article on DH+. That’s a long time. [...]

Three Things Every Beginner Should Know About OPC UA (Told by an OPC UA Newbie)

When I first decided to write a blog about the Open Platform Communications Unified Architecture [...]

EtherNet/IP Limitations

I’ve probably written more about EtherNet/IP than anyone in the industrial automation industry. I’ve been [...]

Four Things Every Beginner Should Know About EtherNet/IP (Told by an EtherNet/IP Beginner)

Believe it or not, I am not the most tech-savvy guy. My friends in high [...]

What Modbus Doesn’t Do Very Well

I’ve always been a fan of Modbus. It’s simple. I like to think that it [...]

Four Things Every Beginner Should Know About Modbus (Told by a Modbus Beginner)

Just imagine for a moment—imagine you’re a 23-year-old, just one year out of college. By [...]

How To Sound Smart (or at Least Literate) When Talking to Enginerds

I am always fascinated by acronyms. So many of them have different meanings depending on [...]