Carl Henning

Jun 7

Control Engineers Boo IT

I’m in Las Vegas where we are exhibiting and presenting PROFIBUS and PROFINET at the Siemens user event.  At the Tuesday morning opening Tom Kopanski related a story told him by one of the editors attending the event.  At a nameless company’s user gathering, IT was roundly booed.  I understand this reaction by control engineers…

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Jun 7

Control Engineers Boo IT – Continued

Mayhaps I have struck a nerve.  I got reaction in person today, by email, and in the blogosphere.  Gary Mintchell noted in his blog that Automation World will be covering the subject.  In person today, another editor indicated his magazine was also approaching the topic.  And I had a visitor at our booth here who…

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Jun 6

Imitation is the Flattest Form of Sincerity

I received an email invitation from ODVA for an Ethernet/IP free seminar.  We’ve been doing PROFINET one-day training events for at least three years. I see they have one scheduled for the United States; we typically do 10 in the US and Canada.  (And, of course, our colleagues at the other 24 regional organizations do…

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May 31

Ethernet Basics

Another PROFINET one-day class is finished.  Here in Newton, MA, the crowd was good and the exhibitors were legion.  There were an unusually high number of device manufacturers at this event, so we added a short overview of four of the development tools suppliers.  All four were exhibiting so that worked out well for everyone….

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May 24

General Assembly Meeting, PROFIsafe, and a road trip

We’ve nailed down most of the details for the PTO General Assembly Meeting.  This is our 12th and my 11th. Where does the time go?  And more importantly, how could I have missed one?  I really get excited about these events.  Learn lots.  Teach some.  Visit old friends.  Make new ones.  Observe the competitive attendee…

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May 16

Industrial Ethernet Survey

Network Vision, a PTO member, has some clever tools to help maintain Industrial Ethernet networks.  We demonstrate them at the PROFINET one-day training events to show how standard tools can help troubleshoot the PROFINET network.  They’ll be exhibiting at our free upcoming Boston one-day training class on May 31.  The news is that they are…

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May 11

Why Use Industrial Ethernet?

One of the topics we cover in the PROFINET one-day training classes is the industrial automation trends that have led users to Industrial Ethernet.  And more importantly, the results they can expect in using Industrial Ethernet, especially PROFINET. We were recently able to expand on that topic in an article in Control Engineering.  It’s been…

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May 2

Whither Wireless? Which one?

Whither Wireless?  Which one?  We talk about wireless as if it were some monolithic thing.  It’s not. There was a lot of wireless stuff at Hanover, even a wireless pavilion with many displays.  My observation is that wireless means many different things.  I see four broad categories: device-level fieldbus-level Ethernet RTU-level The first one has…

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May 2

FDT vs. EDDL

The raging controversy between FDT and EDDL continued at Hanover.  This is just silly. My advice to those who are so wrapped up in one that they can’t tolerate the other is this: get over it!  Neither is going away.  The users will pick which one they want… IF THEY CARE.  And they don’t really…

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May 1

IO-Link, HART for discrete?

IO-Link is a point-to-point wiring system intended for smart sensors and actuators.  It communicates over the discrete device’s wires.  This reminds me of HART in the process space where communication is superimposed over the 4-20mA signal wires.  And similar to HART, you can use an IO-Link device in a standard system and a non-IO-Link device…

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