Profiblog

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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Apr 27

Are you going to Hanover Fair…

Not Scarborough Fair… and no parsley, sage, rosemary, or thyme.  Are You Going to Hanover Fair could have been the tune at Hanover Fair on Monday (with apologies to Simon and Garfunkel).  Monday attendance seemed off from prior years; one company said they had 20% fewer leads.  Fortunately Tuesday picked up and Wednesday was very busy;…

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Apr 23

Manchester-Encoded Safety Airport Lounge

En route to Hanover I am spending some hours in the Manchester (UK) airport… too many, actually, but more than enough time to read and ponder a Briefing in Friday’s ARCwire on HIMA’s Safety Systems.  In the last paragraph this bit causes me to wonder: “HIMA offers open integration solutions based on common hardware and…

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Apr 21

Safety Has Evolved

“Safety has evolved from being a cost burden and “necessary evil” to a strategy for improving productivity and reducing downtime.” –from the “The Business Case for Safety” section of the new ARC White Paper, PROFIsafe: Networked Safety for Process and Factory Automation. We engineers sometimes get so excited about the technology we forget about the…

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Apr 18

Grand Ole PROFINET

Live from the PROFINET one-day training event in Nashville – lunch is over and we are resuming with the PROFINET IO demo.  Good questions at this event and a blend of Control Engineers and IT.  I love to see that gap overcome.  At these events, when we ask if there is cooperation or tension between…

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Apr 11

Somewhere over the Atlantic

I’m relatively awake but not necessarily happy to be.  But while I am, I will compose some Hanover Fair news to post when I land. First, news about PROFIBUS and PROFINET.  A number of companies make development kits for device manufacturers to get moving quickly on PROFINET products.  (We’ve recently confirmed that we will schedule…

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Apr 6

Stuck in the office

Kind of a long stretch with no travel.  Today Mike and Mike are handling the PROFIBUS in the Process Industry one-day training event in San Juan.  Sure, I go to Canada for a week and the boss goes to Puerto Rico.  (He doesn’t do “cold.”  We all live in Arizona for a reason, I guess.)…

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Mar 23

Going back to Austin

I didn’t realize how long it had been since I’d been here.  Bergstrom was an air base then and now it’s the Austin airport.  I guess my youngest graduated from UT longer ago that I realized. The training class was terrific.  Man, I love this technology!  One of the things we do to break up…

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