Tag Archives: HTTP

Web Servers for Allen-Bradley PLCs – Part 2

The previous article in this series discussed what web servers are and how they function [...]

Web Servers for Allen-Bradley PLCs – Part 1

If you’re like the typical factory floor engineer, you’re probably not very familiar with web [...]

Where Modbus Still Make Sense

I’d be willing to bet that if I tried to pawn off my old Betamax [...]

The Top 10 Manufacturing Networks of 2019

Since the first days of Modbus, system designers have been creating new manufacturing networks. Sometimes [...]

Why Use OPC UA Instead of RESTful Interface

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

Modbus WINS in Water and Waste Water

Modbus TCP (and RS485 Modbus RTU) continue to be the go to protocols for simple [...]

OPC UA and the Internet

If you know anything about me at all, you know that I am a big [...]

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 [...]