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EtherCAT Introduction faster Industrial Ethernet most flexible - PowerPoint PPT Presentation

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Industrial Ethernet EtherCAT ist: EtherCAT Introduction faster Industrial Ethernet most flexible to wire safety redundancy simpler to configure low cost well proven open versatile Summary

  1. Industrial Ethernet EtherCAT ist: EtherCAT Introduction • faster • Industrial Ethernet • most flexible to wire • safety • redundancy • simpler to configure • low cost • well proven • open • versatile • Summary EtherCAT: Ethernet Control Automation Technology 1

  2. EtherCAT EtherCAT ist: Ethernet for Control and Automation Technology • faster • Industrial Ethernet • most flexible to wire • safety • redundancy • simpler to configure • low cost • EtherCAT is ultra Fast: 1000 dig. I/O: 30 µs, 100 servo‘s: 100 µs • well proven • EtherCAT is Ethernet: Standaard Ethernet at I/O level • open • EtherCAT is Flexible: Star, line, drop, with or without switch • versatile • EtherCAT is Inexpensive: ethernet is mainstream technology, therefore inexpensive • Summary • EtherCAT is Easy: everybody knows Ethernet, it is simple to use

  3. Functional Principle: Ethernet „on the Fly“ EtherCAT ist: • faster • Industrial Ethernet • most flexible to wire • safety • redundancy • simpler to • Analogy Fast Train: configure • „Train“ (Ethernet Frame) does not stop • low cost • Even when watching „train“ through narrow window one sees • well proven the entire train • open • „Car“ (Sub-Telegram) has variable length • versatile • User can „extract“ or „insert“ single „persons“ (Bits) or entire „groups“ – even multiple groups per train • Summary EtherCAT: Ethernet Control Automation Technology 3

  4. Pass-through telegram access saves time EtherCAT ist: • faster • Industrial Ethernet • most flexible to wire • safety • redundancy from Master • simpler to to Master configure • low cost • well proven • Data is modified and/or added while telegram passes through • open without buffering, storing or disassembly / assembly. • versatile • Telegram delay per terminal: 60 ns • Summary • Optimal performance EtherCAT: Ethernet Control Automation Technology 4

  5. Functional Principle: Ethernet „on the Fly“ EtherCAT ist: Slave Device Slave Device • faster • Industrial Ethernet EtherCAT Slave EtherCAT Slave Controller Controller • most flexible to wire • safety • redundancy • Process data is extracted and inserted on the fly • simpler to • Process data size per slave almost unlimited configure (1 Bit…60 Kbyte, if needed using several frames) • low cost • Compilation of process data can change in each cycle, e.g. ultra • well proven short cycle time for axis, and longer cycles for I/O update • open possible • versatile • In addition asynchronous, event triggered communication • Summary EtherCAT: Ethernet Control Automation Technology 5

  6. Functional Principle: Virtual ring structure EtherCAT ist: Master • faster RX Unit TX Unit • Industrial RX TX Ethernet • most flexible to wire MAC 1 • safety RX TX • redundancy • simpler to configure • low cost • well proven Slave 1 Slave 2 Slave N-1 Slave N • open RX TX RX TX RX TX RX TX ... ... ... • versatile • Summary TX RX TX RX TX RX TX RX EtherCAT: Ethernet Control Automation Technology 6

  7. Functional Principle: Ethernet „on the Fly“ EtherCAT ist: Minimal protocol overhead via implicit addressing • faster • Industrial Ethernet IPC • most flexible to wire .. DVI .. • safety • redundancy WKC WKC WKC EH EH EH Ethernet HDR Data Data Data CRC FH • simpler to configure • Optimized telegram structure for decentralized I/O • low cost • Communication completely in hardware: maximum • well proven performance • open • no switches needed if only EtherCAT devices in the network • versatile • Outstanding diagnostic features • Ethernet-compatibility maintained • Summary EtherCAT: Ethernet Control Automation Technology 7

  8. EtherCAT Distributed Clocks EtherCAT ist: Precise Synchronization (<< 1 µs!) by exact adjustment of • faster distributed clocks • Industrial Ethernet S M • most flexible � t to wire IPC • safety • redundancy S S .. .. DVI • simpler to configure • low cost S S S S S • well proven • open • versatile • Summary EtherCAT: Ethernet Control Automation Technology 8

  9. EtherCAT is Industrial Ethernet! EtherCAT ist: • EtherCAT: only Standard Ethernet Frames (IEEE 802.3) • faster • Master: Ethernet MAC without co-processor or special HW • Industrial • Fully transparent for other Ethernet protocols Ethernet • Internet Technologies (TCP/IP, FTP, Web server etc.) without • most flexible restricting the real time capabilities, even with 100µs cycle time – to wire no large time gaps for rare traffic needed • safety • Full Tool-Access to devices at real time operation – • redundancy with and without TCP/IP • simpler to configure • low cost 48 Bit 48 Bit 16 Bit 16 Bit 32 Bit Destination Source EtherType Header … CRC • well proven Embedded in Standard Ethernet • open Frame, EtherType 0x88A4 1..n EtherCAT Datagrams • versatile 11 Bit 1 Bit 4 Bit • Summary Length Res. Type 0 11 12 15 EtherCAT: Ethernet Control Automation Technology 9

  10. EtherCAT is Industrial Ethernet! EtherCAT ist: • Connection to any Ethernet device via Switchport • faster • Access to web server with standard browser • Industrial • Switchport can be implemented as device feature, seperate Ethernet device or software functionality in master • most flexible • Switchport allows for hard real time capability with parallel to wire Ethernet communication of any kind • safety • redundancy • simpler to configure • low cost IP C • well proven • open .. DVI .. Switchport • versatile • Summary EtherCAT: Ethernet Control Automation Technology 10

  11. EtherCAT is most flexible to wire EtherCAT ist: • Flexible tree structures – arbitrarily extendable • faster • Line without limitations through cascaded switches or hubs • Industrial • 100 m between two nodes, up to 65535 nodes in one segment Ethernet • branches can be connected/removed at run time („Hot Connect“) • most flexible • Straight or crossed cables – automatic detection to wire IP • safety C • redundancy • simpler to .. .. DVI configure • low cost • well proven • open • versatile • Summary EtherCAT: Ethernet Control Automation Technology 11

  12. Fieldbus Gateways EtherCAT ist: • EtherCAT Performance allows for: EtherCAT instead of PCI • faster • no card slots required any more • Industrial • maximum system expandability with low cost fieldbus gateways Ethernet • seamless integration of fieldbus devices protects your investment • most flexible • smooth migration path from fieldbus to EtherCAT to wire • safety • redundancy • simpler to configure • low cost • well proven • open • versatile • Summary EtherCAT: Ethernet Control Automation Technology 12

  13. Safety over EtherCAT: Features EtherCAT ist: • TÜV certified technology • faster • Developed according to IEC 61508 • Industrial Ethernet • Protocol meets Safety Integrated Level (SIL) 4 • most flexible • Device implementations typically SIL 3 to wire • Suitable for functional safe I/O as well as for functional safe motion • safety control • redundancy • Variable CRC size for minimal overhead • simpler to • Safe Parameter Download at boot-up: most simple device configure exchange possible • low cost • Safety devices already available • well proven • open • versatile • Summary EtherCAT: Ethernet Control Automation Technology 13

  14. Safety over EtherCAT: Routing EtherCAT ist: • faster • Can be routed via non-safe gateways • Industrial • Can be routed via fieldbus systems Ethernet • One Safety Technology for (almost) all bus systems • most flexible to wire • safety • redundancy • simpler to configure • low cost • well proven • open • versatile Fipio • Summary EtherCAT: Ethernet Control Automation Technology 14

  15. Without Redundancy: Cable Failure EtherCAT ist: Master • faster RX Unit TX Unit • Industrial RX TX Ethernet • most flexible to wire MAC 1 • safety RX TX • redundancy • simpler to configure • low cost � � � � • well proven Slave 1 Slave M-1 Slave M+1 • open Slave N • versatile RX TX RX TX RX TX RX TX ... ... • Summary TX RX TX RX TX RX TX RX EtherCAT: Ethernet Control Automation Technology 16

  16. With Redundancy: Cable Failure EtherCAT ist: Master • faster RX Unit TX Unit Only 2nd • Industrial RX TX Ethernet Port Ethernet required – no • most flexible special to wire MAC 1 MAC 2 Interface Card • safety RX TX RX TX • redundancy • simpler to configure • low cost � � � � • well proven Slave 1 Slave M-1 Slave M+1 • open Slave N • versatile RX TX RX TX RX TX RX TX ... ... • Summary TX RX TX RX TX RX TX RX EtherCAT: Ethernet Control Automation Technology 17

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