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How Ethernet Is Expanding Its Role

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Ann R. Thryft
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Re: Which protocols?
Ann R. Thryft   3/15/2013 12:37:39 PM
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Thanks, barheine. That gives at least some data points. 

apresher
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Ethernet Protocols
apresher   3/15/2013 3:32:52 PM
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Barheine,  The latest numbers I've seen for 2011 cited shipments (not share %) and the only big change is EtherCat significantly higher and on par with Powerlink.

Charles Murray
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Re: Ethernet's Role
Charles Murray   3/15/2013 6:09:04 PM
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It's probably a sign that Ethernet has reached a poingt where it can no longer be ignored, Al.

TJ McDermott
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Machine Safety
TJ McDermott   3/17/2013 3:37:22 PM
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Al, yet another aspect where designers have begun to rely on Ethernet is Machine Safety.  Safety circuits are now able to communicate back to a dedicated safety controller over Ethernet.  Traditional safety used dedicated, hard-wired circuits.

Ethernet safety relies on hardware that is safety rated at each end (safety inputs and outputs on a distributed I/O rack) and safety controller using them.  The safety hardware constantly monitors that Ethernet connection and initiates safe shutdown if it is ever lost.

Ann R. Thryft
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Re: I'm rooting for EtherCat
Ann R. Thryft   3/18/2013 12:02:15 PM
I agree with Jim_E, EtherNet/IP is a horrible name. You have to watch the spelling, 'cause otherwise it's easy to confuse this term with the general Ethernet over IP, a completely different animal.

Jim_E
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EtherNet/IP a poor name
Jim_E   3/18/2013 12:11:28 PM
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Ann, thank you for validating my EtherNet/IP naming opinion!  It gets my award for the most confusing/misleading protocol name.

As an interesting aside, when I first learned about EtherNet/IP, was when I was working for a company that made stationary, industrial barcode readers.  The common term for these devices are "barcode scanners", or just "scanners".  Well, in EtherNet/IP, a "scanner" is a specific type of network device.  Enter confusion, since our scanner can't be called a scanner anymore if using Ethernet/IP....  :)

 

Ann R. Thryft
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Re: EtherNet/IP a poor name
Ann R. Thryft   3/18/2013 12:46:15 PM
I'm with you on that one, too, and I recall a similar confusion when first encountering the term. But at least it's not an official, chosen-by-a-group-who-should-have-known-better protocol name.

apresher
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Ethernet's Role
apresher   3/19/2013 9:12:51 AM
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TJ, Good insight on Ethernet and safety.  Networked safety solutions are a definite trend over the next few years.  Another way to leverage the network and reduce the need for separate hardware controllers for specific functions.

Ann R. Thryft
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Re: EtherNet/IP a poor name
Ann R. Thryft   3/19/2013 2:12:33 PM
I've got another whine about naming processes, this one more general. I don't know the specifics that resulted in the EtherNet/IP name we've been complaining about. But on the surface, it looks just like what I've seen far too many times: people who should know better coming up with a) a product/technology/protocol name that closely resembles a well-known generic term, chosen with the assumption that the resulting confusion will bring more business, b) a product or company name chosen by the founder's family members who know nothing about the  business or industry, so it fails to attract potential customers, and c) a company logo only the founder--or a very small industry in-group--understands that takes 15 minutes to explain to anyone else.

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