Tag Archives: Modbus TCP

A House Divided

Do you live in a house divided by electronics? If you think that religion or [...]

The Big Problem for Device Manufacturers

I had a very interesting call the other day from a guy in the controller [...]

Multi-Dropping Modbus over RS-232: Could It Work?

RS-232 and Modbus are two words that just don’t go together. Sort of like Lawrence [...]

When NOT to Use Modbus

I’ve been writing about Modbus, Modbus RTU and Modbus TCP since I had hair, and [...]

ControlLogix and Printing

The words, “ControlLogix” and “printing” aren’t often found together in the same sentence. For eons [...]

The Odd Couple: OPC UA and Modbus

If you’ve been around this planet for a while I’m sure you’ve run into the [...]

Modbus Plus: Mystery at the Museum

I like the TV show “Mysteries at the Museum”. They tell stories about odd things [...]

Profibus DP: A History of Speed

Profibus is an interesting technology for a lot of reasons. It is still very dominant [...]

DeviceNet Changed Everything

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

Modbus Security

If you are new to Modbus, or new to security, you already know everything there [...]