Tag Archives: PROFINET IO
Multiple Masters
When an engineer starts using Modbus TCP (the Ethernet version) instead of Modbus RTU (the [...]
Aug
MicroLogix PLC
The human brain is an incredible machine. Over the past few years, I’ve learned some [...]
Jul
Open Source In Automation Products
There are a lot of things I like: pizza, bacon and eggs, bagels with real [...]
Jul
Multicast Communication
I’m sometimes envious at how a group of women can be engaged in multiple concurrent [...]
Jun
Modbus for City Slickers
I like the movie City Slickers. I think it appeals to me because we are [...]
Jun
VLAN ESSENTIALS
Recently, just out of curiosity, I’ve asked a number of controls people about VLANs. The [...]
May
RINGS, RINGS, and MORE RINGS…
There is a rather startling shift in thinking about how to architect control systems. For [...]
May
Let’s Talk About the Bus in Modbus
A computer protocol like Modbus is nothing more than a series of bits with a [...]
Apr
IOT: Have it Your Way
I hate the term IoT – the Internet of Things. It is just wrong on [...]
Mar