Peter Lutz, Managing Director SERCOS International e.V.

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Presentation transcript:

Peter Lutz, Managing Director SERCOS International e.V. Ausdruck vom: 19.04.2017 Real-Time Ethernet Technology Comparison SERCOS Seminar Atlanta September 16, 2009 Peter Lutz, Managing Director SERCOS International e.V. (c) IGS, 2005

Real-Time Ethernet Competition Ausdruck vom: 19.04.2017 Real-Time Ethernet Competition (c) SERCOS International 2009 (c) IGS, 2005

Overview on Real-Time Ethernet Technologies (Selection) Ausdruck vom: 19.04.2017 Overview on Real-Time Ethernet Technologies (Selection) CC Link IE Drive CliQ EPA EtherCAT EtherNet/IP + CIP Sync Ethernet Powerlink IEEE 1588 / PTP JetSync Modbus RTPS Mechatrolink III PowerDNA Profinet RAPIEnet RTEX SafetyNET p SERCOS III SynqNet TCnet Varan Vnet/IP Source: http://www.real-time-ethernet.de/ (c) SERCOS International 2009 (c) IGS, 2005

Overview on Real-Time Ethernet Technologies (Selection) Ausdruck vom: 19.04.2017 Overview on Real-Time Ethernet Technologies (Selection) CC Link IE Drive CliQ EPA EtherCAT EtherNet/IP + CIP Sync Ethernet Powerlink IEEE 1588 / PTP JetSync Modbus RTPS Mechatrolink III PowerDNA Profinet RAPIEnet RTEX SafetyNET p SERCOS III SynqNet TCnet Varan Vnet/IP International Standard Source: http://www.real-time-ethernet.de/ (c) SERCOS International 2009 (c) IGS, 2005

Overview on Real-Time Ethernet Technologies (Selection) Ausdruck vom: 19.04.2017 Overview on Real-Time Ethernet Technologies (Selection) CC Link IE Drive CliQ EPA EtherCAT EtherNet/IP + CIP Sync Ethernet Powerlink IEEE 1588 / PTP JetSync Modbus RTPS Mechatrolink III PowerDNA Profinet RAPIEnet RTEX SafetyNET p SERCOS III SynqNet TCnet Varan Vnet/IP User Organization Source: http://www.real-time-ethernet.de/ (c) SERCOS International 2009 (c) IGS, 2005

Overview on Real-Time Ethernet Technologies (Selection) Ausdruck vom: 19.04.2017 Overview on Real-Time Ethernet Technologies (Selection) CC Link IE Drive CliQ EPA EtherCAT EtherNet/IP + CIP Sync Ethernet Powerlink IEEE 1588 / PTP JetSync Modbus RTPS Mechatrolink III PowerDNA Profinet RAPIEnet RTEX SafetyNET p SERCOS III SynqNet TCnet Varan Vnet/IP High-Performance Source: http://www.real-time-ethernet.de/ (c) SERCOS International 2009 (c) IGS, 2005

Real-Time Ethernet Protocols: Efficiency / Performance Ausdruck vom: 19.04.2017 Real-Time Ethernet Protocols: Efficiency / Performance a) SERCOS III: Collective telegrams (Real-time channel) Separate Ethernet frames (non-real-time channel) RT1 RT2 RT3 ETH1 ETH2 ETH1 … RT1 … Communication cycle t b) EtherCAT: Tunnelled Ethernet frames Collective telegrams RT1 RT2 ETH1 RT3 … RT1 … … Communication cycle t c) Profinet, Ethernet/IP, Ethernet Powerlink: Separate Ethernet frames Separate Ethernet frames Padding … … RT1 RT2 RT3 ETH ETH RT1 Communication cycle t RTi: Real-time data of node i, ETH: Ethernet frame with non-real-time data (c) SERCOS International 2009 (c) IGS, 2005

Example: Cross Communication with SERCOS III Ausdruck vom: 19.04.2017 Example: Cross Communication with SERCOS III Master Slave 1 Slave 2 Slave (n) Direct cross communication in forward path (here between slave 1 and slave 2) Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx CAT5 Direct cross communication in reverse path (here between slave 2 and slave 1) Real-time processing during passing through a node Signal transmission without interpretation Tx: Ethernet transmitter (Sender), Physical Interface Rx: Ethernet receiver (Receiver), Physical Interface (c) SERCOS International 2009 (c) IGS, 2005

Example: Cross Communication with EtherCAT Ausdruck vom: 19.04.2017 Example: Cross Communication with EtherCAT Direct cross communication in forward path (here between slave 1 and slave 2) a) Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx CAT5 Master Slave 1 Slave 2 Slave (n) b) Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Indirect cross communication in reverse path (here between slave 2 and slave 1) Real-time processing during passing through a node Signal transmission without interpretation Tx: Ethernet transmitter (Sender), Physical Interface (c) SERCOS International 2009 Rx: Ethernet receiver (Receiver), Physical Interface (c) IGS, 2005

Example: Redundancy Concept of EtherCAT Ausdruck vom: 19.04.2017 Example: Redundancy Concept of EtherCAT Normal operation: Fault case: Fault case: Transmission of real-time data in line topology Detection of redundancy case by redundancy manager (M) Activation of reserve line after successful reconfiguration Reserve line (inactive during normal operation Activated reserve line M M M S1 S4 S1 S4 S1 S4 S2 S3 S2 S3 S2 S3 Link break during reconfiguration t (c) SERCOS International 2009 (c) IGS, 2005

Example: Redundancy Concept of SERCOS III Ausdruck vom: 19.04.2017 Example: Redundancy Concept of SERCOS III Normal operation: Fault case: Cyclic, redundant transmission of real-time data in primary and secondary ring Splitting up into two lines M M S1 S4 S1 S4 S2 S3 S2 S3 Recovery time: < 25 µs No reconfiguration required! t (c) SERCOS International 2009 (c) IGS, 2005

Example: Interoperability with SERCOS III and EtherCAT Ausdruck vom: 19.04.2017 Example: Interoperability with SERCOS III and EtherCAT Vendor A S-3 Profile Control Vendor B S-3 Profile SERCOS III Drives SERCOS III SERCOS III S-3 Profile SERCOS III Vendor C Vendor A S-3-A Control Vendor B … DS402-B Ethercat Ethercat Drives Ethercat DS402-C Ethercat Vendor C (c) SERCOS International 2009 (c) IGS, 2005

Comparison of selected Real-Time Ethernet Solutions Ausdruck vom: 19.04.2017 Comparison of selected Real-Time Ethernet Solutions SERCOS III EtherCAT PROFINET IRT Ethernet Powerlink EtherNet/IP + CIPsync & CIPmotion Performance ++ + o Ethernet Conformity Installed Base Variety of Suppliers & Products Indepen-dence (c) SERCOS International 2009 (c) IGS, 2005

Evolution of Fieldbus and Drivebus Technologies Ausdruck vom: 19.04.2017 Evolution of Fieldbus and Drivebus Technologies DeviceNet Ethernet/IP+CIP Sync Profibus Profinet IRT Interbus Ethercat CANopen Powerlink SERCOS II SERCOS III (c) SERCOS International 2009 2001 2003 2005 2007 (c) IGS, 2005

Ausdruck vom: 19.04.2017 Summary SERCOS III … combines the proven mechanisms of SERCOS interface (IEC 61491) with Ethernet (IEEE 802.3) uses the established and proven synchronization mechanisms and profiles of the existing SERCOS interface allows an easy migration from SERCOS II to SERCOS III is based on a cost-efficient and flexible standard hardware covers all actual and future requirements for motion control applications (C2C, Safety, I/O) develops from a specialized drive bus to an universal real-time Ethernet network (c) SERCOS International 2009 (c) IGS, 2005