May 16


Are you new to PROFIBUS? Ready to start a new PROFIBUS project? Are you required to troubleshoot and maintain a PROFIBUS network? Here are some suggestions to learn about PROFIBUS: Read about PROFIBUS. The best place to start is the 36-page System Description: PROFIBUS Technology and Application. It’s contents: Chapter 1 contains an introduction to…

Read More
May 10

Hannover Messe Report: Ease of Use

If there was one big blinking neon light not to be missed from Hannover Messe this year it was: OPC UA. Like Karsten mentioned in PROFINEWS, it was everywhere -that and TSN. But what is the subtext to be gleaned behind these technologies? -EASE OF USE- This is the holy-grail for all manufacturers, and is…

Read More
May 4

Tech Tip Roundup – Updated

One of our favorite topics is tech tips. We provide many in PROFINEWS. If you are a subscriber, you have been kept up-to-date with tech tips. If you are not a subscriber, subscribe here. Then read on for a current list (and read PROFINEWS for new ones). If you were already updated through the original…

Read More
Apr 25

PI Profile

PI (PROFIBUS and PROFINET International) is a successful organization. Here’s why… First, why only one “P” in the name? When we started, there was only PROFIBUS. PROFINET came along later. I kind of visualize PI like this: The superimposed PROFINET green P is eclipsing the PROFIBUS Blue P in PI. But both are there and…

Read More
Apr 18


Every year PI conducts an audited count of new nodes installed for PROFINET, PROFIBUS, PROFI in Process, PROFIsafe, and more. No other organization does this, so any numbers you see for nodes of EtherNet/IP or EtherCAT are estimates. The count is conducted by an independent third party. He sends a request to device makers who…

Read More
Apr 11

Completing a PROFINET Project

What’s the logical sequence to use to describe PROFINET? For the one-day training classes, we put everything in the context of the PROFINET of Things (IIoT and Industrie 4.0). For the PROFINET introduction webinar, we went from definition to use in application spaces (factory, process, motion) to features. For the PROFINET System Description, we moved…

Read More
Apr 4

PROFINET is 100% Buzzword Compliant

In order for your product or technology to succeed you have to be able to “check the right boxes.” PROFINET checks all the right boxes making it 100% buzzword compliant. These are some of the buzzwords we encounter in industrial automation today: Ethernet, Real-Time, TSN, Big Data, Analytics, Industrial Internet of Things, and Industrie 4.0….

Read More
Mar 28

IO-Link versus AS-i

You’re designing a new machine. Should you use IO-Link or AS-interface (AS-i)? Yes. Yes, you should use the one appropriate to the task at hand. There’s never a substitute for doing the engineering. Use AS-i for: A long string of pushbuttons (as along a conveyor). A long string of Emergency Stop pushbuttons (as along a…

Read More
Mar 21

PROFINET Can (Still) Use a Cheap Switch

If you want to get someone to remember something you can’t repeat it too many times. Case in point: I saw another new blog post from someone who thinks you cannot use a standard Ethernet switch for PROFINET.    YOU CAN! Seven years ago, I blogged that PROFINET can use a Best Buy Ethernet Switch, really?…

Read More
Mar 14

Where Networks Fit in the IIoT

There has been a raft of articles about networks and their place in the Industrial Internet of Things. Basically, IIoT is at the intersection of IoT and Industrie 4.0. Here’s a 46-second video reminder of how the relate. There were three articles that caught my attention: 1. Modbus As an IoT Protocol??? John Rinaldi makes…

Read More