Author Archives: John S Rinaldi

Data Highway (DH+) Revisited

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

EtherNet/IP Limitations

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

What Modbus Doesn’t Do Very Well

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

What is a Captive Portal?

I’ve written many times about how every industry and every specialty has terms that everyone [...]

The Things IT Would Never Do

In many of these articles, I’ve discussed the differences between IT and OT. They both [...]

Single Pair Ethernet Driving IP to the Edge (Part 2)

In my last article, I discussed the current trends that are driving the transformation of [...]

2020: Not The Worst Year – Not By A Long Shot

If you’re like me, you’re still thinking “Thank God that freaking 2020 is over!” For [...]

The Massive Pothole on the Road to Digitalization

I’m sure it’s unique to me but when I sit at my desk to work, [...]

Rapid Digitalization of Manufacturing? Welcome to Fantasy Island! (What Say You?)

I often wonder if I am a square peg in a round hole. I see [...]

Single Pair Ethernet Driving IP to the Edge (Part 1)

Ready or not, soon we’ll have Single Pair Ethernet (SPE): a twisted pair cable carrying [...]