Streamlining and standardizing on Ethernet is definitely the way forward for the industrial network. Having one network allows operators to better manage data, security, diagnostics and any devices that might be connected to the network, and also, as you mention, Al, greater agility. Thanks for this comprehensive update on this.
Thanks, Al, great summary of recent developments in industrial Ethernet. Any sense of how the different protocols--EtherCAT, EtherNet/IP, Ethernet Powerlink--are stacking up against each other? My guess is Ethernet Powerlink may be gaining ground because it's an open standard.
I've configured all types of networks for our moitoring (laser gauges for example) with control electronics (industrial PC's) and have found ethernet the quickest and more simple for the customer to learn and install than Profi bus or RS-485/422 which require termination resistors and have seen mismatches that are sometimes hard to find (exept now because its the first thing I look for) ethernet is also cheaper I think and no limit to number of devices on network unlike Profibus and RS 485/422.
Chuck, The automation control suppliers have overcome the limitations of Ethernet itself by implementing protocols which provide deterministic performance using the same physical layer. Some solutions do use ASICs in addition to "pure" Ethernet hardware, and there is also ongoing work for some of the protocols to work seamlessly together. Thanks.
Ann, How Ethernet protocols stack up against each other is an interesting question. EtherNet/IP has dominant market share in the Americas, and Profinet has a huge following. But there are a series of serious players who are winning by solving applications and winning over customers for different reasons. sercos III, Powerlink, EtherCat, CCLink, MECHATROLINK, Modbus TCP/IP and (there must be more) all have excellent technology. I'm sure we could get some good debate on which is "best".
Hi Ann, I have got only old numbers from the year 2009 from IMS Research: Ethernet/IP (30%), Profinet (28%), Modbus TCP/IP (22%), Powerlink (11%), Ethercat (4%), and others (5%). Maybe, anybody here knows current numbers of the market shares of the different protocols?
I'm rooting for EtherCat, even though where I'm currently working, we don't even use it.
We do use a lot of Ethernet/IP (what a horrible name!), ProfiNet and Modbus/TCP, but I really think that EtherCat is awesome due to its design. I would feel confident doing time critical I/O over EtherCat, but not with the other protocols.
One of the best thing of modern Ethernet communications, is easy OPC support. We run Kepware OPC servers and can suck in points from all kinds of disparate devices, giving us a layer of visibilty across entire facilities.
For decades, engineers have worked to combat erosion by developing high-strength alloys, composites, and surface coatings. However, in a new paper, a team at Jilin University in China turned to one of the most deadly animals in the world for inspiration -- the yellow fat-backed scorpion.
Green energy is being billed as a way to make communities that are energy deprived more self-sustaining. So it makes sense to use natural materials to create devices that harvest this type of energy. That’s the idea behind a hybrid wind/solar energy harvester made of bamboo that’s been developed by UVM researchers.
Anyone who’s ever moved files from a hard drive to a computer has sat patiently waiting for the transfer to complete. But what if this process could be done wirelessly, without having to connect devices with cables, and in seconds?
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.