Author Archives: John S Rinaldi

Why I Stand For The Flag

It was a few months ago. A beautiful summer evening, a football stadium, a gentle [...]

Secure EtherNet/IP Devices

We were surprised recently to get a report that one of our EtherNet/IP Adapter stacks had [...]

Wireless Modbus TCP

If you asked the average man or woman on the street about wireless communications, they [...]

WHY ETHERNET/IP FACTORY FLOOR QoS CAN BE SO FRUSTRATING (Part 2)

“Take two aspirin and call me in the morning!” – That was the answer I [...]

INTRODUCTION TO ETHERNET/IP AND QUALITY OF SERVICE (Part 1)

This is the first of a series of articles on EtherNet/IP and Quality of Service, [...]

EtherNet/IP Connected vs. Connectionless Communication

There are certain underlying principles that just work, and we can take advantage of them [...]

To Duplex or Not to Duplex

Duplex is one of those communications terms that sounds more technical than it is. But [...]

What is an EtherNet/IP Port Number?

Imagine for a moment that your computer is a big warehouse and you’ve taken the [...]

Peer Communication from One Allen-Bradley PLC to Another

This is one of those things that you just expect should be easier than it [...]

A Life Well-Lived

My 93-year-old uncle, whose life I managed over the past several years, passed away in [...]