Tag Archives: XML

What is a Historian?

An off-the-cuff answer is someone that records history. We’re talking about control system historians, but [...]

JSON For Your Command/Response Protocol

If you have a device that uses Command/Response protocol and it’s too expensive or will [...]

ASCII Command Response Devices

If you’re a little older you can remember those old Cathode Ray Televisions everyone had [...]

Why Use OPC UA Instead of RESTful Interface

Did you know that there’s a new battleground where manufacturers are bleeding time and money? [...]

Getting Modbus Data into a Database

Modbus data is everywhere. There is no end to the number of devices that have [...]

ASCII Data over HTTP

ASCII data will be with us forever. It was invented out of necessity in the [...]


I am an engineer by training and a technologist by interest. I follow technology and [...]

DeviceNet Changed Everything

Everyone has one of those seminal moments from their childhood that they’ll remember forever. Mine [...]

Implement Messaging Devices in a PLC Environment

The last article Messaging Devices Don’t get No Respect, discussed messaging devices, and why vendors [...]

IOT – The Elephant in the Room

I’m sure you’ve heard the term “Elephant in the Room”. It’s a common way to [...]