Author Archives: John S Rinaldi

Hidden EtherNet/IP Performance Problems

It’s possible that even if you don’t know it, you have EtherNet/IP performance problems. In [...]

The History Behind VLANs

Ethernet is now approaching 50 years old and, like us, humans look pretty different than [...]

Adoption of CIP Security Won’t Be Easy

It’s not a panacea, but it is an (unavoidable) long-term solution. At last year’s Rockwell [...]

My Thoughts on COVID-19

Clean Like Nobody’s Watching! I’m praying that by the time you read this, fewer of [...]

Understanding the Ethernet Network Domain – Part 1

This is the first part of a series of articles on what automation engineers need [...]

There’s No Rush to Wireless

I recently attended a panel discussion where the three participants (usual suspects – easy to [...]

Understanding Network Address Translation (NAT)

At one point in my life, I hated databases. I don’t know why but databases [...]

The ODVA 2020 Industry Conference & 20th Annual Meeting

One of the best-run conferences of the year is the ODVA Industry Conference. I have [...]

Trust is an EtherNet/IP Device with CIP Security

At last year’s Rockwell Automation Fair, one hundred people attended the session on CIP Security. [...]

Multicast (One More Time…)

If you’re doing it right, life is a process of continuous learning. If you’ve learned [...]