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prabhakar_deosthali
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Machine tools ineterfaces is the key
prabhakar_deosthali   2/24/2014 11:29:14 AM
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To make industrial Ethernet being used pervasively on the factory shop floors - the elad role has to be taken by the machine tool manufacturers - most of which offer proprietary systems for controlling their machines so much so that the maintenance of such systems becomes a major issues.

 

Most the machine tools have a very long life cycle - many being used over decades but the software or the firmware in such machine tools is of such a proprietary nature that unless the OEM support is available the machines are difficlut to maintain.

TonyTib
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Re: What new is offered?
TonyTib   2/20/2014 4:54:25 PM
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Well, I suspect TI has the AM335x Sitara lineup in mind, available at low cost in the BeagleBone Black, since it has a PRU-ICSS co-processor designed for real time Ethernet (e.g. Ethernet PowerLink, EtherCAT, Profinet-IRT), although the BeagleBone users are typically using the PRU for stepper motor control.

And, no, those Ethernet procotocls aren't very compatible.  You can probably run the non-real time procotols over the same network (e.g. Modbus/TCP, Ethernet/IP), but real time procotols don't mix, so it's still field bus wars, round 2.


Speaking as an automation developer, I'm not planning on using Ethernet anytime soon, since CANOpen is still plenty fast enough for us, so Ethernet would just add cost (e.g. EtherCAT servo drives are substantially more expensive than CANOpen servo drives).

Sanjib.A
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What new is offered?
Sanjib.A   2/20/2014 1:25:07 PM
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I believe the "Industrial Ethernet" already exists...Ethernet designed from Industrial environment, rugged, reliable. In this article it is mentioned about difficulties in inter-operability between Industrial Ethernet equipments from different manufacturers. But there are open protocols such as PROFINET, EtherCAT, PROFISAFE etc. exist, which enables this interoperability between devices. What are the new things those are being discussed? 



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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