Feb 10


I always come into the transition from one year to the next thinking “I’m off the road; I can get caught up on blogging.”  Good theory. Instead I’ve been scrambling to get ready for our PROFINET and PROFIBUS one-day training classes for 2011.  The PROFINET Training Manuals are at the printers; the CDs are pressed. …

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Sep 8

PROFIBUS in a Chemical Plant

Brad Hart from PI North America member C&E Sales presented a PROFIBUS application story from a chemical plant at the General Assembly Meeting.  It featured some AS-I, some PROFIBUS DP, some PROFIBUS PA, and some plans for PROFINET.  The usual benefits were realized in wiring and related hardware savings plus labor savings.  The real surprise…

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Jul 27

PROFIBUS Planning Guide Available

The release of PROFIBUS Installation Guideline for Planning completes a three-part installation set.  It’s now available for download online.  Already available were PROFIBUS Installation Guideline for Cabling and Assembly and PROFIBUS Installation Guideline for Commissioning. For tips and techniques in planning, installing, and commissioning PROFIBUS attend one of our one-day training classes or Certified Network…

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Jun 27

What are the differences between PROFIBUS V0, V1, and V2?

The question was prompted at the Vancouver PROFINET one-day training class.  (Yes, we get PROFIBUS questions at the PROFINET class and vice versa.) Here’s the summary: DPV0: Cyclic Data Exchange, Diagnostics (all devices) DPV1: Acyclic Data Exchange, Process Alarm Handling (process automation) DPV2: Clock Synchronization & Time Stamp (drives) It’s important to note that the…

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Jun 10

How many devices on a PROFIBUS DP network in Grand Rapids?

There was a good crowd at the Grand Rapids PROFIBUS one-day training class last week.  Manny and Torsten were there while I was in Vancouver with Hunter for a PROFINET one-day training class.  One of the questions that came up in Grand Rapids concerned how many PROFIBUS DP devices are allowed on a network.  We have…

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Mar 19

PROFIBUS Book Review

I once blogged with tongue in cheek that not only did we have more installed nodes of PROFIBUS than any of the other fieldbuses, but that we had more books, too.  Now we have one more and it’s a doozey.  The principal author is James Powell.  You may recall James from earlier posts.  [I always…

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