Functional Principle and the resulting Benefits.

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Loraine Newman
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1 Functional Principle and the resulting Benefits

2 EtherCAT Functional Principle: Ethernet on the fly Slave Device EtherCAT Slave Controller Slave Device EtherCAT Slave Controller Process data is extracted and inserted on the fly: Process data size per slave almost unlimited (1 Bit 60 Kbyte, if needed using several frames) Compilation of process data can change in each cycle, e.g. ultra short cycle time for axis, and longer cycles for I/O update possible in addition asynchronous, event triggered communication EtherCAT Technology Group,

3 EtherCAT Functional Principle: Ethernet on the fly Master Ethernet Header ECAT HDR HDR 1 PLC Data 1 HDR 2 NC Data HDR 2 PLC Data 2 CRC Minimal protocol overhead via implicit addressing Optimized telegram structure for decentralized I/O Communication completely in hardware: maximum (+ predictable!) performance No switches needed if only EtherCAT devices in the network Outstanding diagnostic features Ethernet-compatibility maintained EtherCAT Technology Group,

4 Benefit 1: Performance EtherCAT is by far the fastest Ethernet Fieldbus Application Example: 40 Axis (each 20 Byte Input- and Output-Data) 50 I/O Station with a total of 560 EtherCAT Bus Terminals 2000 Digital Analog I/O, Bus Length 500 m Performance EtherCAT: Cycle Time = 276 µs at 44 % Bus Load, Telegram Length = 122 µs EtherCAT Technology Group, 2010

5 Benefit 2: EtherCAT is Industrial Ethernet! fully transparent for TCP/IP all Internet technologies (HTTP, FTP, Webserver, ) available without restricting the real time capabilities! EtherCAT Slave Device Standard TCP/IP Stack Ethernet Application TCP UDP Real Time Application IP Acyclic Data Mailbox Process Data EtherCAT MAC / DLL Ethernet PHY Ethernet PHY EtherCAT Technology Group,

6 Benefit 3: EtherCAT wiring is more flexible Standard Ethernet Topology: Star EtherCAT Technology Group,

7 Benefit 3: EtherCAT wiring is more flexible Flexible topologies arbitrarily extendable Topology variants like Line, Star, Tree, Daisy Chain + Drop Lines possible; can be used in any combination! Up to nodes for each EtherCAT segment Standard Ethernet cabling Master Line Star/Tree Drop Line EtherCAT Technology Group,

8 Benefit 4: EtherCAT is easier to configure Network planning: Performance independent of: Slave implementation (no Stacks involved in Process Data Communication) Topology (no Switches/Hubs) Addressing No manual address setting required No IP- or MAC-Address Handling Required Addresses can be assigned automatically Addresses can be kept no new addressing if nodes are added EtherCAT Technology Group,

9 Benefit 5: EtherCAT is easier to diagnose Topology: Automatic Topology Expected/Actual Comparison Diagnosis: M Diagnosis with exact Localization Every node constantly monitors checksum Bit errors are detected and localized Even Timing Errors (e.g. Time Window for Actual Values missed) are detected and stored locally in the chip EtherCAT Technology Group, 2010

10 Benefit 6: EtherCAT is lower costs Lower Engineering Costs: Less effort for Network planning: Simplified configuration Default settings will work, no network tuning Improved Diagnosis: Faster error handling leads to less downtime Faster Setup: No address setting required Implementation / Tools: Standard Network Monitor Tools, e.g. MS Network Monitor or Wireshark: free of charge Parser Software: free of charge EtherCAT Technology Group,

Benefit 6: EtherCAT is lower costs Lower Hardware Costs: Master: no dedicated plug in card (co-processor) on-board Ethernet Port is fine Slave: low cost Slave Controller FPGA or

11 Benefit 6: EtherCAT is lower costs Lower Hardware Costs: Master: no dedicated plug in card (co-processor) on-board Ethernet Port is fine Slave: low cost Slave Controller FPGA or ASIC for simple devices: no µc needed no powerful µc needed Infrastructure: no Switches/Hubs required Standard Ethernet Cabling + Connectors 32 Bit µc EtherCAT Technology Group,

12 Benefit 7: EtherCAT is well proven In Series Production since 2003, outstanding Product Variety EtherCAT Technology Group,

13 Benefit 8: EtherCAT is an open technology Foundation: November 2003 Tasks: Support, Advancement and Promotion of EtherCAT The worlds largest Fieldbus Organization More than 1450* member companies from 50 countries in 6 continents: Device Manufacturers End Users Technology Providers Membership is open to everybody *as of Oct 2010 EtherCAT Technology Group,

14 Benefit 8: EtherCAT is an open technology Protocol is disclosed completely: EtherCAT is IEC, ISO and SEMI Standard (IEC 61158, IEC 61784, ISO 15745, SEMI E54.20) Slave Controller from several sources available Slave Controller provides interoperability ETG organizes Interoperabilitly Testing ( Plug Fests ), Workshops and Seminars Conformance Testing + Certificates EtherCAT Technology Group,

15 ETG Members Asia Sept 30, 2010: 374 Asian Members Aug 2009 Aug 2010: + 43% EtherCAT Technology Group, 2010

16 Benefit 9: Largest Product Selection I/O, Controller, HMI, Servo Drives, Variable Speed Drives Sensors, Slave + Master Development Kits Control Panels, Hydraulic Valves and Pneumatic Valves, EtherCAT Technology Group,

17 Benefit 10: Safety over EtherCAT Safety over EtherCAT (FSoE) defines a safety communication layer for the transportation of safety process data between Safety over EtherCAT devices. Integrated: Just one system for Safe and Non-Safe Data Open: International standard (IEC ) Open: For EtherCAT and other bus systems as well Lean: Safety Container only 6 Bytes Proven: Certified Products available since 2005 EtherCAT Technology Group,

18 Benefit 11: High Availability Cable Redundancy with shortest switchover time in case of device or cable failure EtherCAT Master RX Unit TX Unit RX TX MAC 1 MAC 2 RX TX RX TX Only 2nd Ethernet Port required no special Interface Card Slave 1 Slave 2 Slave N-1 Slave N RX TX... RX TX RX TX... RX TX TX RX TX RX TX RX TX RX Switchover time: < 15µs EtherCAT Technology Group,

19 Benefit 12: Supported + Accepted in Japan Large local Community: 150 Japanese ETG Members Local ETG Office in Japan EtherCAT Test Center in Japan (Kyoto) EtherCAT Specification in Japanese Language EtherCAT Website in Japanese Language EtherCAT Training Classes, Seminars, Plug Fests in Japan EtherCAT Technology Group,

20 EtherCAT - The Ethernet Fieldbus. Why go for something slower, just because it is more expensive? EtherCAT Technology Group,

EtherCAT - The Ethernet Fieldbus. Please visit www.ethercat.org/jp.

21 EtherCAT - The Ethernet Fieldbus. Please visit for more information ETG Office Japan 134 Chudoji Minami-machi, Shimogyo Kyoto Phone +81 (75) Info.jp@ethercat.org EtherCAT Technology Group,

EtherCAT Introduction

Industrial EtherCAT Introduction EtherCAT: Control Automation Technology 1 EtherCAT for Control and Automation Technology EtherCAT is ultra Fast: 1000 dig. I/O: 30 µs, 100 servo s: 100 µs EtherCAT is :