Author Archives: John Rinaldi
What is an EtherNet/IP Port Number?
Imagine for a moment that your computer is a big warehouse and you’ve taken the [...]
Sep
Peer Communication from One Allen-Bradley PLC to Another
This is one of those things that you just expect should be easier than it [...]
Sep
A Life Well-Lived
My 93-year-old uncle, whose life I managed over the past several years, passed away in [...]
Sep
Hubs, Managed and Unmanaged Switches
When I was very, very young, I remember my grandmother having a party line telephone. [...]
Sep
Why Active Directory is Important to a Control Engineer
As a control engineer, you have enough technology to learn and maintain, and it’s not [...]
Aug
EtherNet/IP and the TCP/IP Software Stack
I’m sure that there’s software that is more historic; the code that landed Neil Armstrong [...]
Aug
The Future of Modbus Gateways
Everyone has their fifteen minutes of fame. I’m hardly famous but a few people know [...]
Aug
Gateways as Cybersecurity Appliances
Sometimes when you talk to customers you get the strangest information. Things that you would [...]
Aug
7 Simple Steps to Machine Security
This is another part of a series of articles on what automation engineers need to [...]
Jul
What Are the 10 Most Important Questions to Ask About Modbus?
Modbus RTU will live forever. With its simplicity, ease of use, world-wide implementation, and small [...]
Jul
