Posts Categorized: Uncategorized

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… Read more »


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… Read more »

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… Read more »

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… Read more »

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… Read more »

What Should I Do about TSN?

TSN = Time Sensitive Networking. It’s a catchall name for a series of new standards whose goal is to improve determinism in “standard” Ethernet networks. It grew out of the needs of Audio/Visual delivery. Naturally, a new organization grew to… Read more »