Tag Archives: Protocol


When we think of Modbus, we think of a forty year old protocol, old machines, [...]

OPC UA and M.O.U.

The OPC Foundation is signing a number of Memorandums of Understanding (MOUs) with a number [...]

Architecting OPC UA Systems

As most of you know, I’m a huge fan of OPC UA. Have been since [...]

CiA… Not That One

Like DeviceNet, CANopen is a CAN-based, low-level industrial application layer protocol for automation applications. CANopen [...]

Implement Messaging Devices in a PLC Environment

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

IoT Transport Protocols… Not!

IoT (Internet of Things) is all the rage. Everybody is talking about it. My morning [...]

What do IoT and Chili Have in Common?

I love chili! When you live in snow country like I do, there is no [...]

The Hateful Eight: Pros and Cons of EtherNet/IP

I can’t tell you how many times over the years I’ve had someone ask me [...]

New Years, Old Modbus

The New Year is a nostalgic time of year, one that converges with an end-of-year [...]


Last month I attended the 2015 AHR Trade Show in Chicago. 62,000 attendees from almost [...]