Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...

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Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
EtherCAT

42

           ..
           Highlights
             Ethernet for the field level down to

           ..the terminal – complete continuity
             Ethernet process interface scalable

           ..from 1 bit to 64 kbyte

           ..exact timing and synchronisable
             I/O performance from 100 to
             10,000 Mbit/s
Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
EtherCAT

                                                                                                   EtherCAT
The real-time Ethernet fieldbus                                                                    43

u   www.beckhoff.com/EtherCAT

    44   Product overview    46    Technologies                        EtherCAT components

                             46    EtherCAT                  1    24   Industrial PC
                             54    XFC                       1 192     Embedded PC
                             58    EtherCAT P                    78​   EtherCAT Terminals
                             62    EtherCAT G                    272   EtherCAT Box
                             75    Safety over EtherCAT          390   EtherCAT Plug-in Modules
                                                                 632   Infrastructure Components
                                                             1 348     EtherCAT Servo Drives
                                                             1 490     TwinCAT
                             66    EtherCAT Development      1 570     TwinSAFE
                                   Products                      658   Accessories

                             67    EtherCAT ASIC
                             68    EtherCAT IP core
                             70    EtherCAT evaluation kit
                             71    EtherCAT piggyback
                                   controller boards
                             73    EtherCAT P Sample Box
                              74   Industrial Ethernet
                                   multi-channel probe
                             75    Safety over EtherCAT
                                   Conformance Test Tool
                             76    EtherCAT development
                                   software and tools
                             739   EtherCAT Developer
                                   Trainings
Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
Product overview EtherCAT
EtherCAT

44

           EtherCAT components

           PC-based Control                               EtherCAT Terminals                            EtherCAT Box                                   EtherCAT P Box
           Industrial     CPxxxx                1   38​   Couplers      EK1xxx                 108      Digital I/O   EP1xxx,                  292     Digital I/O      EPP1xxx                    348
           PCs            Panel PCs                                     EtherCAT Coupler E-bus                        ER1xxx, EQ1xxx*                                   digital input

                          (EtherCAT masters)                                                                          digital input

                                                                        BK1xxx                   119                  EP2xxx,                  299                      EPP2xxx                    354
                          Cxxxx                 1   90                  EtherCAT Coupler K-bus                        ER2xxx, EQ2xxx*                                   digital output

                          control cabinet PCs                                                                         digital output

                          (EtherCAT masters)                            EKxxxx                   120                  EP23xx,                  307                      EPP23xx                    360
                                                                        Bus Coupler for                               ER23xx, EQ23xx*                                   digital combi

                                                                        EtherCAT Terminals                            digital combi

                                                                                                        Analog I/O EP3xxx,                       314   Analog I/O EPP3xxx                          366
           Embedded CXxxxx                      1 ​192                  EK1400                   117                  ER3xxx, EQ3xxx*                                   analog input

           PCs            Embedded PCs                                  EtherCAT G                                    analog input

                          (EtherCAT masters)                                                                          EP4xxx,                  322                      EPP4xxx                    370
                                                          Digital I/O   EL1xxx                   124                  ER4xxx*                                           analog output

                                                                        digital input                                 analog output

                                                                                                                      EP43xx                   323                      EPP43xx                    371
           Software       TwinCAT               1 490                   EL2xxx                   138                  analog combi                                      analog combi

           PLC/Motion     EtherCAT masters and                          digital output                  Special       EP5xxx,                  326
           Control        development environment                                                       functions     ER5xxx*                          Special          EPP5xxx                    372
                                                          Analog I/O EL3xxx                      162                  position measurement             functions        position measurement

                                                                        analog input                                  EP6xxx,                  330
                                                                                                                      ER6xxx*                                           EPP6xxx                    375
           Safety         TwinSAFE              1 ​570                  ELM3xxx                  194                  communication                                     communication

                          open and scalable                             measurement modules                           EP7xxx,                  334
                          control technology                                                                          ER7xxx* motion                                    EPP7xxx                    377
                                                                        EL4xxx                 206                    EP8xxx,                  339                      motion

                                                                        analog output                                 ER8xxx*
                                                                                                                      multi-functional I/O box         System           EPP1111                    379
           Redun-         TwinCAT               1 535     Special       EL5xxx                   214    System        EP1111                   340                      EtherCAT P Box with

           dancy          EtherCAT                        functions     position measurement                          EtherCAT Box with ID switch                       ID switch

                          Redundancy                                                                                  EP1122                   340                      EPP1322                    380
                          extension of the EtherCAT                     EL6xxx                   219                  2-port EtherCAT junction                          3 ports, with feed-in

                          master with cable                             communication                   Fieldbus      IL230x-B110              581                      EPP1332                    380
                          redundancy capability                                                         Box           IP 67 Coupler Box with                            3 ports, with refresh

                                                                        EL7xxx                 240                    EtherCAT interface                                EPP1342                    380
                                                                        motion                                        IExxxx                   600                      3 ports

                                                                                                                      Extension Box modules                             EPP9001                    381
                                                          System        EL9xxx                   ​247                 for IP-Link                                       EtherCAT P/EtherCAT

                                                                        system terminals                Fieldbus      FM33xx-B110              628                      connector with power

                                                                                                        modules       Thermocouple                                      transmission

                                                                                                                      Fieldbus Modules with                             EPP9022                    381
                                                                                                                      EtherCAT interface                                4 x diagnostics (US, UP, IS, IP)

           *EPxxxx: industrial housing in IP 67, ERxxxx: zinc die-cast housing in IP 67, EQxxxx: stainless steel housing in IP 69K

                                                                                                                                                       We reserve the right to make technical changes.
Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
EtherCAT
                                                                                                                                                                                        45

 EtherCAT Plug-in Modules                          Infrastructure Components                   Drive Technology                              Drive Technology
 Couplers          EJ1100                  397     PCI          FC9xxx                  654    Servo         AX5000               1 360      Servo-       AM80xx               1 386
                   EtherCAT Coupler E-bus          Ethernet     PCI, Mini PCI,                 Drives        Digital Compact                 motors       Synchronous Servomotors

                                                                PCIe cards 1 Gbit/s                          Servo Drive                                  with One Cable Technology

                                                                                                                                                          (OCT)

                                                                FC9xxx                  655                  AX8000               1 350                   AM85xx               1 398
 Digital I/O       EJ1xxx                  398                  PCI, Mini PCI,                               multi-axis servo system                      Synchronous Servomotors

                   digital input                                PCIe cards 100 Mbit/s                        for OCT motors                               with increased rotor

                                                                                                                                                          moment of inertia and

                   EJ2xxx                  402     PCI          FC1100                  646                  EL72xx-9014               242                One Cable Technology (OCT)

                   digital output                  EtherCAT     PCI EtherCAT slave card                      servomotor terminal,                         AM8700               1 412
                                                                                                             Irms = 4.5 A, 50 V DC,                       servomotors with anodized

                                                                FC1121                  646                  OCT, STO                                     housing and One Cable

                                                                PCIe EtherCAT slave card                                                                  Technology (OCT)

 Analog I/O EJ3xxx                         406                                                               EP7211-9034               334                AM88xx               1 416
                   analog input                    Port         CU2508                  639                  servomotor box,                              stainless steel Synchronous

                                                   multiplier   1 x RJ45                                     Irms = 4.5 A, 50 V DC,                       Servomotors with One

                   EJ4xxx                   ​410                (+ 8 x RJ45: 100 Mbit/s)                     OCT, STO                                     Cable Technology (OCT)

                   analog output                                                                                                             Linear       AA2518               1 427
                                                   EtherCAT     CU1128                  641                  EJ7211-9414               418   motors       tubular motor

                                                   junction     8 x RJ45, IP 20                              servomotor module,                           ALxxxx               1 428
                                                                                                             Irms = 4.5 A, 50 V DC,                       Linear Servomotors

 Special           EJ5xxx                   412                 EP9128-0021             641                  OCT, STO                        Compact      AA112x,              1 440
 functions         position measurement                         8 x M8, IP 67                                                                Drive        AA182x
                                                                                                                                             Technology   linear actuators

                   EJ6xxx                   414    EtherCAT G CU1411                    642    Distributed AMP8000                1 374                   AM81xx               1 442
                   communication                                branch controller, 1 port      Servo Drive   Synchronous Servomotors                      Synchronous Servomotors

                                                                                               system        with integrated servo drive                  with One Cable Technology

                   EJ7xxx                   417                 CU1418                  642                                                               (OCT) for the servo I/Os

                   motion                                       branch controller, 8 ports                                                                AS20xx               1 448
                                                                                                                                                          stepper motors

                                                                CU1423                  643                                                  Intelligent XTS                   1 458
                                                                junction, 3 x RJ45                                                           transport    Standard
 System            EJ9xxx                  420                                                                                               systems      eXtended Transport System

                   system modules                  EtherCAT     CU1521-0000             644​                                                              XTS                  1 466
                                                   media        multimode, IP 20                                                                          Hygienic
                                                   converter                                                                                              eXtended Transport System

                                                   fibre optic EP9521-0020              645                                                               in stainless steel (IP 69K)

                                                                multimode, IP 67                                                                          XPlanar              1 472
                                                                                                                                                          eXtended planar

                                                                                                                                                          motor system

We reserve the right to make technical changes.
Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
EtherCAT | Ultra-fast
EtherCAT

           communication standard
46

           u   www.ethercat.org

           How it works                        Network performance               Flexible topology                  Versatile
           The key functional principle of     The unique way EtherCAT           An EtherCAT network can            Factory-wide communication:
           EtherCAT lies in how its nodes      processes frames makes it         support up to 65,535 devices       EtherCAT is suitable for both
           process Ethernet frames: each       the fastest Industrial Ethernet   without placing restrictions       centralised and decentralised
           node reads the data addressed       technology.                       on their topology: line, bus,      system architectures.
           to it and writes its data back to                                     tree, star – or any combination
           the frame all while the frame is                                      thereof.
           moving downstream.

                                                                                 Functional safety
                                                                                 Safety over EtherCAT is just       Open technology
                                                                                 like EtherCAT itself – lean        EtherCAT is an internatio-
           Easy                                Low-cost                          and fast. Functional safety is     nally standardised open
           EtherCAT is easier than             EtherCAT delivers all of          built directly into the bus with   technology, meaning anyone
           classic fieldbus systems via        the advantages of Industrial      options for both centralised       is free to use the technology
           on-board diagnostics with           Ethernet at fieldbus prices:      and decentralised safety logic.    in a compatible form. Today,
           fault localisation, automatic       no active infrastructure          Thanks to the Black Channel        the EtherCAT Technology
           node addressing and no              components, no special            approach, it is also available     Group is the world’s largest
           need for network tuning.            hardware in the master.           for other bus systems.             fieldbus organisation.

                                                                                                                    We reserve the right to make technical changes.
Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
EtherCAT
                                                                                                                                            47

2003 | Introduction of EtherCAT technology        2003 | EtherCAT Technology Group founded        2005 | Safety over EtherCAT
at Hannover Messe                                 at SPS IPC Drives

Global standard                                   retained. As a result, devices from the early
In 2003, Beckhoff introduces its EtherCAT         years, even from as far back as 2003, are
technology into the market. The EtherCAT          still interoperable with today’s devices in
Technology Group (ETG) is formed, sup-            the same networks.
ported initially by 33 founder members.                 Another milestone is achieved in
The ETG goes on to standardise and main-          2016 with EtherCAT P, which introduces
tain the technology. The group is the largest     the ability to carry power (2 x 24 V) on a
fieldbus user organisation in the world,          standard Cat.5 cable alongside EtherCAT
with more than 5000 members (as of 2019)          data. This paves the way for machines
currently. In 2005, the Safety over EtherCAT      without control cabinets.
protocol is rolled out, expanding the EtherCAT          The launch of EtherCAT G/G10 in 2018
specification to enable safe transmission of      introduces higher data transmission rates.
safety-relevant control data. The low-foot-       Interoperability with the existing EtherCAT
print protocol uses a so-called Black Channel,    equipment base is a core requirement,
making it completely independent of the           so steps are taken to enable integration,
communication system used.                        including introduction of the so-called
     In 2007, EtherCAT is adopted as an           branch model.
IEC standard, underscoring how open
the system is. To this day, the specification
remains unchanged; it has only been
extended and compatibility has been

2007 | EtherCAT is IEC standard.                  2016 | EtherCAT P: Ultra-fast communication     2018 | EtherCAT G: The next performance
                                                  and power via one cable                         level with 1 Gbit/s

We reserve the right to make technical changes.
Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
EtherCAT

48

                         Ethernet header                ECAT                                EtherCAT telegram                                        Ethernet

                   DA          SA          Type      Frame HDR             Datagram 1           Datagram 2             Datagram n               Pad.            FCS

                   (6)         (6)         (2/4)            (2)             (10+n+2)             (10+m+2)               (10+k+2)             (0…32)              (4)
                         Ethertype 0x88A4

           EtherCAT in a standard Ethernet frame (according to IEEE 802.3)

           The technology in detail
           EtherCAT: Based on Ethernet                            the transmission of the actual values             forward frames downstream. This concept
           Technology                                             after receiving the target values. At the         prevents unpredictable delays and guaran-
           EtherCAT is an Industrial Ethernet                     end, not much of the 100 Mbit/s transfer          tees real-time capabilities.
           system that utilises standard frames                   rate remains.                                          The master uses a standard Ethernet
           and the physical layer as defined in                        Protocol stacks, such as those used          Media Access Controller (MAC) without
           the Ethernet standard IEEE 802.3.                      in the IT world for routing (IP) and connection   an additional communication processor.
           However, it also addresses the specific                (TCP), require additional overhead for each       This allows a master to be implemented
           demands faced in the automation                        node and create further delays through            on any hardware platform with an avail-
           industry, where:                                       the stack runtimes.                               able Ethernet port, regardless of which
           – There are hard real-time requirements                                                                  real-time operating system or application
                with deterministic response times.                How does EtherCAT work?                           software is used.
           – The system is usually made up of                     EtherCAT overcomes the typical short-                  EtherCAT slave devices use a so-
                many nodes, each only having a                    comings of Industrial Ethernet with               called EtherCAT Slave Controller (ESC) to
                small amount of cyclic process data.              its high-performing mode of operation,            process frames on the fly and entirely in
           – Hardware costs are even more                         in which a single frame is usually suffi-         hardware, making network performance
                important than in IT and office                   cient to send and receive control data            predictable and independent of the indi-
                applications.                                     to and from all nodes.                            vidual slave device implementation.
           The above requirements make using a                         The EtherCAT master sends a telegram
           standard Ethernet network at the field                 that passes through each node. Each EtherCAT      The EtherCAT protocol
           level practically impossible. If an individual         slave device reads the data addressed to it       EtherCAT embeds its payload in a standard
           Ethernet telegram is used for each node,               “on the fly,” and inserts its data in the frame   Ethernet frame. The EtherCAT frame is identi-
           the effective data rate sinks significantly            as the frame is moving downstream. The            fied with the Identifier (Ox88A4) in the
           for just a few bytes of cyclic process data:           frame is delayed only by hardware propa-          Ethertype field. Since the EtherCAT protocol
           the shortest Ethernet telegram is 84 bytes             gation delay times. The last node in a seg-       is optimised for short cyclic process data,
           long (including the Inter Frame Gap), of               ment or branch detects an open port and           the use of bulky protocol stacks, such as
           which 46 bytes can be used for process                 sends the message back to the master using        TCP/IP or UDP/IP, can be eliminated.
           data.                                                  Ethernet technology’s full duplex feature.             To ensure Ethernet IT communication
                For example, if a drive sends 4 bytes                  The telegram’s maximum effective             between the nodes, TCP/IP connections can
           of process data for the actual position                data rate increases to over 90 %, and due         optionally be tunneled through a mailbox
           and status information and receives                    to the utilisation of the full duplex feature,    channel without impacting real-time data
           4 bytes of data for the target position                the theoretical effective data rate is even       transfer.
           and control information, the effective                 greater than 100 Mbit/s.                               During startup, the master device config-
           data rate for both telegrams sinks to                       The EtherCAT master is the only node         ures and maps the process data on the slave
           4/84 = 4.8 %. Additionally, the drive                  within a segment allowed to actively send         devices. Different amounts of data can be
           usually has a reaction time that triggers              an EtherCAT frame; all other nodes merely         exchanged with each slave, from one bit to

                                                                                                                                   We reserve the right to make technical changes.
Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
EtherCAT
                                                                                                                                                          49

                     Ethernet header              ECAT HDR          Datagram 1            Datagram 2             Datagram 3         Ethernet

                                                                  Logical Process       Logical Process        Logical Process
                                                                  Image Task 1          Image Task 2           Image Task 3

Inserting process data on the fly

a few bytes, or even up to kilobytes of                      controller, and copied into memory. With           cation depends on the network’s
data.                                                        EtherCAT, the master device only needs             topology, and is particularly suitable
     The EtherCAT frame contains one or                      to fill a single EtherCAT frame with new           for slave-to-slave communication in
more datagrams. The datagram header indi-                    output data, and send the frame via                a constant machine design (e.g. in
cates what type of access the master device                  automatic Direct Memory Access (DMA)               printing or packaging machines).
would like to execute:                                       to the MAC controller.                                  In contrast, freely configurable
– read, write, or read-write                                      When a frame with new input data              slave-to-slave communication runs
– access to a specific slave device                          is received via the MAC controller, the            through the master device, and requires
     through direct addressing, or                           master device can copy the frame again             two bus cycles (not necessarily two
     access to multiple slave devices                        via DMA into the computer’s memory –               control cycles). Through the excellent
     through logical addressing                              all without the CPU having to actively copy        performance of EtherCAT, this type of
     (implicit addressing)                                   any data. In addition to cyclical data, further    slave-to-slave communication is still
Logical addressing is used for the cyclical                  datagrams can be used for asynchronous             faster than with other communication
exchange of process data. Each datagram                      or event driven communication.                     technologies.
addresses a specific part of the process                          In addition to logical addressing, the
image in the EtherCAT segment, for which                     master device can also address a slave device
4 GB of address space is available. During                   via its position in the network. This method
network startup, each slave device is                        is used during network boot up to determine
assigned one or more addresses in this                       the network topology and compare it to the
global address space. If multiple slave                      planned topology. After checking the network
devices are assigned addresses in the                        configuration, the master device can assign
same area, they can all be addressed with                    each node a configured node address and
a single datagram.                                           communicate with the node via this fixed
     Since the datagrams completely contain                  address.
all the data access related information, the                      This enables targeted access to
master device can decide when and which                      devices, even when the network topo-
data to access. For example, the master                      logy is changed during operation, for
device can use short cycle times to refresh                  example with Hot Connect Groups.
data on the drives, while using a longer cycle               There are two approaches for slave-
time to sample the I/O; a fixed process data                 to-slave communication. A slave device
structure is not necessary. This also relieves               can send data directly to another slave
the master device in comparison to con-                      device that is connected further down-
ventional fieldbus systems, in which the                     stream in the network. Since EtherCAT
data from each node had to be read indivi-                   frames can only be processed going
dually, sorted with the help of the process                  forward, this type of direct communi-

We reserve the right to make technical changes.
Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
EtherCAT

50

           Flexible topology – line, tree or star

           Flexible topology                              data and power via one cable. This option     an embedded Industrial PC, since extension
           Line, tree, star, or daisy-chain: EtherCAT     enables the connection of devices such        slots are no longer necessary. In the past,
           supports almost all topologies. EtherCAT       as sensors with a single line. Fibre optics   extension slots were also required to connect
           makes a pure bus or line topology with         (such as 100BASE-FX) can also be used, for    complex devices, such as fieldbus master
           hundreds of nodes possible without the         example for a node distance greater than      and slave gateways, fast serial interfaces,
           limitations that normally arise from cas-      100 m. The complete range of Ethernet         and other communication subsystems.
           cading switches or hubs.                       wiring is also available for EtherCAT.        In EtherCAT, all that is needed to connect
                When wiring the system, the combi-             Up to 65,535 devices can be connected    these devices is a single Ethernet port.
           nation of lines with branches or drop          to one EtherCAT segment, so network           The process data from the underlying
           lines is particularly beneficial: the ports    expansion is virtually unlimited. Because     subsystem is made directly available in
           necessary to create branches are directly      of the practically unlimited number of        the process image of the EtherCAT system.
           integrated in many I/O modules, so no          nodes, modular devices such as “sliced”
           additional switches or active infrastructure   I/O stations can be designed in such a        Distributed clocks for high-precision
           components are required. The star topology,    way that each module is an EtherCAT           synchronisation
           the Ethernet classic, can also naturally be    node of its own. Hence, the local extension   In applications with spatially distributed
           utilised.                                      bus is eliminated; the high performance       processes requiring simultaneous actions,
                Modular machines or tool changers         of EtherCAT reaches each module directly      exact synchronisation is particularly impor-
           require network segments or individual         and without any delays, since there is now    tant. For example, this is the case for appli-
           nodes to be connected and disconnected         no gateway in the bus coupler or head         cations in which multiple servo axes exe-
           during operation. EtherCAT slave con-          station.                                      cute coordinated movements.
           trollers already include the basis for this                                                       In contrast to completely synchronous
           Hot Connect feature. If a neighbouring         Integration of other bus systems              communication, whose quality suffers
           station is removed, then the port is auto-     The ample bandwidth of EtherCAT makes         immediately from communication errors,
           matically closed so the rest of the network    it possible to embed conventional fieldbus    distributed synchronised clocks have a
           can continue to operate without interfer-      networks as an underlying system via an       high degree of tolerance for jitter in the
           ence. Very short detection times < 15 μs       EtherCAT Gateway, which is particularly       communication system. Therefore, the
           guarantee a smooth changeover.                 helpful when migrating from a conventional    EtherCAT solution for synchronising nodes
                EtherCAT offers a lot of flexibility      fieldbus to EtherCAT. The changeover to       is based on such distributed clocks (DC).
           regarding cable types, so each segment         EtherCAT is gradual, making it possible to         The calibration of the clocks in the
           can use the exact type of cable that best      continue using automation components          nodes is completely hardware-based.
           meets its needs. Inexpensive Industrial        that do not yet support an EtherCAT inter-    The time from the first DC slave device
           Ethernet cables can be used between two        face.                                         is cyclically distributed to all other devices
           nodes up to 100 m apart in 100BASE-TX               The ability to integrate decentralised   in the system. With this mechanism,
           mode. Furthermore, the protocol addition       gateways also reduces the physical size       the slave device clocks can be pre-
           EtherCAT P enables the transmission of         of the Industrial PC, sometimes even to       cisely adjusted to this reference clock.

                                                                                                                       We reserve the right to make technical changes.
Highlights . Ethernet for the field level down to . Ethernet process interface scalable . exact timing and synchronisable . I/O performance from ...
EtherCAT
                                                                                                                                                      51

Simple integration of other bus systems

The resulting jitter in the system is signifi-    the measured position, so it is critical that   and commissioning time. In addition to error
cantly less than 1 μs.                            the position measurements are taken pre-        detection, error localisation is important
    Since the time sent from the reference        cisely equidistantly (i.e. in exact cycles).    during troubleshooting. EtherCAT features
clock arrives at the slave devices slightly       Even very small inaccuracies in the position    the possibility to scan and compare the
delayed, this propagation delay must be           measurement timing can translate to larger      actual network topology with the planned
measured and compensated for each slave           inaccuracies in the calculated velocity,        topology during boot up. EtherCAT also
device in order to ensure synchronicity and       especially relative to short cycle times.       has many additional diagnostic capabilities
simultaneousness. This delay is measured          With EtherCAT, the position measurements        inherent to its system.
during network startup or, if desired, even       are triggered by the precise local clock             The EtherCAT Slave Controller in each
continuously during operation, ensuring           and not the bus system, leading to much         node checks the moving frame for errors
that the clocks are simultaneous to within        greater accuracy.                               with a checksum. Information is provided to
much less than 1 μs of each other.                     Additionally, the use of distributed       the slave application only if the frame has
    If all nodes have the same time infor-        clocks also unburdens the master device;        been received correctly. If there is a bit error,
mation, they can set their output signals         since actions such as position measurement      the error counter is incremented and the
simultaneously and affix their input signals      are triggered by the local clock instead of     subsequent nodes are informed that the
with a highly precise timestamp. In motion        when the frame is received, the master          frame contains an error. The master device
control applications, cycle accuracy is also      device does not have such strict require-       detects that the frame is faulty and discards
important in addition to synchronicity            ments for sending frames. This allows the       its information. The master device is able
and simultaneousness. In such applica-            master stack to be implemented in software      to detect where the fault originally occurred
tions, velocity is typically derived from         on standard Ethernet hardware. Even jitter      in the system by analysing the nodes’ error
                                                  in the range of several microseconds does       counters. This is an enormous advantage in
                                                  not diminish the accuracy of the distributed    comparison to conventional fieldbus systems,
                                                  clocks. Since the accuracy of the clock does    in which an error is propagated along the
                                                  not depend on when it is set, the frame’s       shared bus line, making it impossible to
                                                  absolute transmission time becomes irrel-       localise the source of the error. EtherCAT can
                                                  evant. The EtherCAT master need only to         detect and localise occasional disturbances
                                                  ensure that the EtherCAT telegram is sent       before the issue impacts the machine’s
                                                  early enough, before the DC signal in           operation.
                                                  the slave devices triggers the output.               Due to the unique principle of band-
                                                                                                  width utilisation of EtherCAT, which is
                                                  Diagnostics and error localisation              orders of magnitude better than indus-
                                                  Experience with conventional fieldbus           trial Ethernet technologies that use single
Synchronicity and simultaneousness –              systems has shown that diagnostic               frames, the likelihood of disturbances
scope view of two distributed devices             characteristics play a major role in            induced by bit errors within an EtherCAT
with 300 nodes and 120 m cable length             determining a machine’s availability            frame is substantially lower – if the same

We reserve the right to make technical changes.
M
                                                                            t       S
EtherCAT

52

                                                          S       S         S      S        S                  S

                                                                                                                   Completely hardware-based
                                                                                                                   synchronisation with compensation
                                                                                                                   for propagation delays

           cycle time is used. And, if in typical             High availability requirements
           EtherCAT fashion much shorter cycle                For machines or equipment with very high
           times are used, the time required for              availability requirements, a cable break or
           error recovery is significantly reduced.           a node malfunctioning should not mean
           Thus, it is also much simpler to master            that a network segment is no longer
           such issues within the application.                accessible, or that the entire network fails.
                 Within the frames, the Working Counter       EtherCAT enables cable redundancy with
           enables the information in each datagram           simple measures. By connecting a cable
           to be monitored for consistency. Every node        from the last node to an additional Ethernet
           that is addressed by the datagram and              port in the master device, a line topology
           whose memory is accessible increments              is extended into a ring topology. A redun-
           the Working Counter automatically. The             dancy case, such as a cable break or a node
           master is then able to cyclically confirm          malfunction, is detected by a software
           if all nodes are working with consistent           add-on in the master stack. That is all there
           data. If the Working Counter has a different       is to it. The nodes themselves do not need
           value than it should, the master does not          to be modified, and do not even “know”
           forward this datagram’s data to the control        that they are being operated in a redundant
           application. The master device is then able        network.
           to automatically detect the reason for the              Link detection in the slave devices auto-
           unexpected behaviour with help from status         matically detects and resolves redundancy
           and error information from the nodes as            cases with a recovery time less than 15 μs,
                                                                                                                                Industrial PC
           well as the Link Status.                           so at maximum, a single communication
                 Since EtherCAT utilises standard             cycle is disrupted. This means that even
           Ethernet frames, Ethernet network traffic          motion applications with very short cycle
           can be recorded with the help of free              times can continue working smoothly when
           Ethernet software tools. For example,              a cable breaks.
           the well-known Wireshark software                       With EtherCAT, it is also possible to
           comes with a protocol interpreter for              realise master device redundancy with
           EtherCAT, so that protocol-specific infor-         Hot Standby. Vulnerable network compo-
           mation, such as the Working Counter,               nents, such as those connected with a
           commandos, etc. are shown in plain text.           drag chain, can be wired with a drop line,
                                                              so that even when a cable breaks, the
                                                              rest of the machine keeps running.
                                                                                                                   Inexpensive cable redundancy with
                                                                                                                   standard EtherCAT slave devices

                                                                                                                                We reserve the right to make technical changes.
EtherCAT
                                                                                                                                                                     53

                                                                                                                       The EtherCAT Technology Group
                                                                                                                       is a global organisation.

EtherCAT Technology Group                                         stable and interoperable. The ETG holds              release. The ETG awards the manufacturer
The EtherCAT Technology Group (ETG)                               multiple Plug Fests in Europe, Asia, and             a Conformance Certificate following a
keeps EtherCAT technology open for                                America each year. The Plug Fests bring              successful test in an accredited test lab.
all potential users. It brings EtherCAT                           EtherCAT device developers together
device manufacturers, technology pro-                             to test and ensure device interoperability.
viders, and users together to further                             Using the official EtherCAT Conformance
the technology. They are focused on                               Test Tool, each manufacturer conformance
one common goal: keeping EtherCAT                                 tests its EtherCAT devices prior to their

   Ordering information                           Components for EtherCAT technology implementation
   FB1111                                         EtherCAT piggyback controller board with ET1100                                                              71
   ET9400                                         one-year license for using the EtherCAT Conformance Test Tool                                                77
   ET9300                                         license for using the EtherCAT Slave Stack Code (free download from Beckhoff website via Member Area
                                                  of the EtherCAT Technology Group web page)                                                                   77
   ET9200                                         license for using the EtherCAT Master Sample Code                                                            76
   ET9000                                         license for using the EtherCAT configurator                                                                  76
   ET2000                                         Industrial Ethernet multi-channel probe                                                                      74
   ET1815 | ET1816                                EtherCAT IP core for Xilinx® FPGAs                                                                           69
   ET1810 | ET1811                                EtherCAT IP core for Intel® FPGAs                                                                            68
   ET1100-0000                                    EtherCAT ASIC                                                                                                67
   EL9820                                         EtherCAT evaluation kit with FB1111-0142, ASIC ET1100                                                        70

   Ordering information                           Training courses for the EtherCAT technology implementation
   TR8110                                         training, EtherCAT technology basics for developers                                                          739
   TR8100                                         EtherCAT evaluation workshop for slave developers                                                            739
   TR8200                                         EtherCAT Master Sample Code workshop for master developers                                                   739

We reserve the right to make technical changes.
EtherCAT | Even faster with XFC
EtherCAT

54
           u   www.beckhoff.com/XFC

                                        TwinCAT – The extremely fast                                          EtherCAT – The extremely fast
                                        real-time control software                                            control communication technology
                                        – real-time under Microsoft Windows                                   – 1000 distributed digital I/Os in 30 μs
                                           down to 12.5 μs cycle time                                         – EtherCAT down to the individual
                                        – standard IEC 61131-3 programming                                       I/O terminals, no sub bus required
                                           in XFC real-time tasks                                             – optimised use of standard Ethernet
                                        – Standard features of Windows                                           Controllers, e.g. Intel® PC chipset
                                           and TwinCAT are XFC-compliant.                                        architecture in the EtherCAT master
                                                                                                              – advanced real-time features based
                                                                                                                 on distributed clocks
                                                                                                                 – synchronisation
                                                                                                                 – timestamping
                                                                                                                 – oversampling

               Industrial PC – The extremely                     EtherCAT Terminals –
               fast control CPU                                  The extremely fast I/O technology
               – Industrial PC based on                          – full range I/O line for all signal types
                   high-performance real-time                    – high-speed digital and analog I/Os
                   motherboards                                  – Timestamping and oversampling
               – compact form factors optimised                     features allow extremely high timing
                   for control applications                         resolution (down to 10 ns).

                                                                                                                          We reserve the right to make technical changes.
EtherCAT
                                                                                                                                                     55

Higher production efficiency with                 XFC offers a further reduction of response        can simply be integrated in the machine
extremely fast control technology                 times by a factor of 10, and enables cycle        control without additional, costly special
With XFC technology (eXtreme Fast Control)        times of 100 μs and below, without having         devices.
Beckhoff presents an ultra fast control           to give up central intelligence and associ-           In a practical automation solution,
solution: XFC is based on optimised control       ated high-performance algorithms. XFC             not everything has to be extremely fast
and communication architectures comprising        also includes additional technologies that        and accurate – many tasks can still be
an advanced Industrial PC, ultra-fast I/O ter-    not only improve cycle times, but also tem-       handled with “normal” solutions. XFC
minals with extended real-time character-         poral accuracy and resolution.                    technology is therefore fully compatible
istics, the EtherCAT high-speed Ethernet               Users benefit from options for enhancing     with existing solutions and can be used
system, and the TwinCAT automation soft-          the quality of their machines and reducing        simultaneously with the same hardware
ware. With XFC it is possible to achieve          response times. Measuring tasks such as pre-      and software.
I/O response times < 100 μs. This technology      ventive maintenance measures, monitoring
opens up new process optimisation oppor-          of idle times or documentation of parts quality
tunities for the user that were not possible
in the past due to technical limitations.
     XFC represents a control technology
that enables very fast and highly deter-
ministic responses. It includes all hardware
and software components involved in
control applications: optimised input and
output components that can detect signals
with high accuracy or initiate tasks;
EtherCAT as very fast communication
network; high-performance Industrial
PCs; and TwinCAT, the automation soft-
ware that links all system components.
     Not long ago, control cycle times
around 10 to 20 ms were normal. The com-
munications interface was free-running,
with corresponding inaccuracy of the deter-
minism associated with responses to pro-
cess signals. The increased availability
of high-performance Industrial PC control-
lers enabled a reduction in cycle times                                                             The I/O response time includes all hardware
down to 1–2 ms, i.e. by about a factor                                                              processing times (Industrial PC, EtherCAT and
of 10. Many special control loops could                                                             I/O system), ranging from physical input event
thus be moved to the central machine                                                                to output response. With an I/O response time
controller, resulting in cost savings and                                                           of < 100 μs, PLC programmers have access to
greater flexibility in the application of                                                           performance that in the past was only avail-
intelligent algorithms.                                                                             able in servo controllers with digital signal
                                                                                                    processors.

We reserve the right to make technical changes.
EtherCAT

56

           The EtherCAT distributed clocks are a basic XFC technology and a general component of EtherCAT communication.

           XFC technologies
           Distributed clocks                              also referred to as system time, because it     Signal technology for terminals with
           In a normal, discrete control loop, actual      is always available across the whole system.    timestamping (64-bit time resolution):
           value acquisition occurs at a certain time                                                      – extremely precise time measurement
           (input component), the result is transferred    Features:                                           for digital single shot events per cycle:
           to the control system (communication com-       – distributed absolute system                       resolution 1 ns, internal sampling 10 ns,
           ponent), the response is calculated (control        synchronisation for CPU,                        accuracy with distributed clocks
Central control Central control

                                                                                                                                                                   EtherCAT
                                                                                                   Central control Central control                                 57

                             1                      1                                 1              1

                            Subordinate special control                                             Fast central control

Subordinate special controls offer a limited process image. XFC enables fast central control with a complete process image.

Oversampling                                                       –    down to 10 μs time resolution                 Extremely fast I/O response time:
Process data is usually transferred exactly                        –    support of digital I/O EtherCAT               – from 85 μs
once per communication cycle. Conversely,                               Terminals                                     – Deterministic synchronised input
the temporal resolution of a process record                        –    up to 1 MHz                                       and output signal conversion leads
directly depends on the communication                              –    up to 1 μs time resolution                        to low process timing jitter.
cycle time. Higher temporal resolution is                          –    application                                   – Process timing jitter is independent
only possible through a reduction in cycle                         –    fast signal monitoring                            of communication and CPU jitter.
time – with associated practical limits.                           –    fast function generator output
     Oversampling data types enable multiple                       –    signal sampling independent                   Extremely short control cycle time:
sampling of a process record within a com-                              of cycle time                                 – 100 μs (min. 12.5 μs)
munication cycle and subsequent (inputs)                           –    fast loop control                             – new performance class for PLC
or prior (outputs) transfer of all data con-                                                                              application: control loops with 100 μs
tained in an array. The oversampling factor                        Fast I/Os
describes the number of samples within a                           Very fast physical responses require suitably
communication cycle and is therefore a                             short control cycle times in the associated
multiple of one. Sampling rates of 200 kHz                         control system. A response can only take
can easily be achieved, even with moderate                         place once the control system has detected
communication cycle times.                                         and processed an event.
     Triggering of the sampling within the                             The traditional approach for achieving
I/O components is controlled by the local                          cycle times in the 100 μs range relies on
clock (or the global system time), which                           special separate controllers with their own,
enables associated temporal relationships                          directly controlled I/Os. This approach has
between distributed signals across the                             clear disadvantages, because the separate
whole network.                                                     controller has only very limited information
                                                                   about the overall system and therefore
Features signal oversampling:                                      cannot make higher-level decisions. Repa-
– multiple signal conversion within                                rameterisation options (e.g. for new work-
    one control cycle                                              pieces) are also limited. Another significant
– hard time synchronisation through                                disadvantage is the fixed I/O configuration,
    distributed clocks                                             which generally cannot be expanded.
– for digital input/output signals
– for analog input/output signals
– support of analog I/O EtherCAT
    Terminals
– up to 100 kHz signal conversion

We reserve the right to make technical changes.
EtherCAT P | Ultra-fast communication
EtherCAT

           and power in one cable
58

           u   www.beckhoff.com/EtherCATP

           The same free and flexible                         Minimised installation space                         Forwarding of power
           choice of topology well-known                            in drag chains, control                        supply in the devices
           from EtherCAT is also available                         cabinets and machines
           with EtherCAT P.

                                             Outstanding EtherCAT              One Cable Connection:               Highly scalable connec-
                Reduced material             performance at low                EtherCAT + 2 x 24 V DC              tor family from 24 V DC
                and assembly costs           connection costs                   (UP, US) on just 4 wires           to 630 V AC/850 V DC

                                                                                                           We reserve the right to make technical changes.
EtherCAT
                                                                                                                                                                           59

EPPxxxx | EtherCAT P                                EPPxxxx-006x | Compact                     EK13xx | EtherCAT P                   ENP/ECP | Connector family
products in IP 67                                   EtherCAT P products in IP 67               products in IP 20                     for all applications

EtherCAT P (P = power) is an addition to the                      the user can cascade several EtherCAT P                  tional power pins, resulting in the ENP/
EtherCAT protocol standard. It enables not                        devices and therefore only needs one cable.              ECP connectors B12, B17, B23 and B40 for
only the transmission of communication data,                      This facilitates reduced cabling, more com-              different performance classes. Featuring a
but also the peripheral voltage via a single,                     pact, cost-effective wiring, lower system                bayonet fitting and IP 67 protection rating,
standard four-wire Ethernet cable.                                costs and a smaller footprint for devices,               they enable simple, fast and reliable connec-
     EtherCAT and EtherCAT P are identical                        equipment and machines.                                  tion directly at the machine and optimised
in terms of the protocol technology, as the                                                                                scalability of EtherCAT for the following
addition exclusively affects the physical layer.                  EtherCAT P: From 24 V DC sensor                          applications:
No new EtherCAT Slave Controllers are nec-                        to 630 V AC/850 V DC drive                               – B12 for connecting compact motors
essary when using EtherCAT P. EtherCAT P                          EtherCAT P offers benefits both for connect-                  with integrated output stages,
has the same communication advantages                             ing remote, smaller I/O stations in terminal                  for up to 48 V DC and 10 A
as EtherCAT, but also provides the power                          boxes and I/O components distributed in                  – B17 for asynchronous motors
supply via the communication cable, offer-                        the process. A complete connector family                      with frequency converter,
ing attractive benefits and enhancements                          was developed, so that the One Cable Auto-                    for up to 230 V DC and 14 A
for numerous applications.                                        mation concept can also be used for connect-             – B23 for complete control cabinets,
     Two electrically isolated, individually                      ing components with higher voltage and/or                     for up to 400 V AC and 30 A
switchable 24 V supplies power the                                current requirements. The ENP/ECP connector              – B40 for the supply of robot stations,
EtherCAT P devices, available with US serv-                       family is designed to cover all applications                  for up to 64 A
ing the system and sensors and UP serving                         up to drives with 650 V AC or 850 V DC and
the periphery and actuators. Both volt-                           up to 64 A.
ages, US and UP, are directly coupled into                             For higher loads, a compact EtherCAT P
the 100 Mbit/s EtherCAT communication                             element with the same pin assignment as
line. Thanks to this power transmission,                          the M8 connector was equipped with addi-

   Technical data                                 EtherCAT P
   Voltages                                       2 x 24 V DC according to IEC 61131 (-15 %/+20 %), max. 3 A each per US and UP
   Connectors                                     Incorrect connections are ruled out with the P-coded M8 connector.
   Topology                                       cascadable in all topology variants
   Network planning                               tool-based calculation of currents and voltages, resulting in optimum design and distribution of feed-in points
   Process data                                   EtherCAT process data scalable from 1 bit…64 kbyte per device
   Devices                                        up to 65,535 devices in one network
   Performance                                    cycle times of < 100 μs, distributed clocks synchronisation
Control cabinet
EtherCAT

                                                       24 V DC      24 V DC            24 V DC
60
                                                   Machine module 2

                                                                                                                   EtherCAT P
                                                                                                                   to EtherCAT

           EtherCAT P directly connects
           different machine modules
           with power and ultra-fast               24 V DC                                                                              24 V DC
           communication in one cable.

           EtherCAT P simplifies system cabling
           The fundamental idea of EtherCAT P is                 bus, offering benefits for connecting smaller     or 2 A output current), a wide range of
           to simplify system wiring by reducing                 remote I/O stations in terminal boxes as well     4-, 8- and 16-channel IP 67 I/Os with com-
           the number of connectors on automation                as I/O components distributed in the process      bined digital inputs/outputs, as well as
           components and devices. The single-cable              environment. A special M8 connector was           serial RS232 and RS422/RS485 interfaces.
           solution, which is highly scalable according          developed for this purpose, with mechanical       In addition, there are EPP box modules
           to individual power requirements, can be              coding that reliably protects against mismat-     for analog input and output parameters,
           deployed on the entire field level: A con-            ing with standard EtherCAT slaves.                e.g. ±10 V/0 to 20 mA, differential/absolute
           ventional standard Ethernet cable is used                  To be able to connect components with        pressure, and data from resistance sensors,
           for the 24 V range. For higher voltages and           higher voltage and/or current supply needs,       thermocouples and incremental encoders.
           currents, EtherCAT P is integrated into the           a complete EtherCAT P connector family has
           corresponding power cable. For this purpose,          been designed: the ECP/ENP connector fam-         Flexible topology
           Beckhoff offers the ENP/ECP connector family,         ily covers all applications up to drives with     EtherCAT P topologies are just as freely
           which includes a comprehensive range of               630 V AC or 850 V DC and 64 A ratings and         selectable and customisable as with
           cables and connectors.                                enables efficient connection of all field level   EtherCAT. The current carrying capacity
                Eliminating the need for separate supply         components. For I/O connection, interfaces        of 3 A per EtherCAT P segment enables
           cables reduces material costs, installation           in IP 20 and IP 67 ratings are available.         a wide range of sensors/actuators to be
           effort and time, as well as the risks of instal-      The system is also suitable for actuators         used. The IP 67 infrastructure components
           lation errors. In addition, the installation          such as AC and DC motors, valve terminals,        can be used for creating the required
           space required in drag chains, control cabi-          and sensors, such as proximity switches,          network structure directly in the field.
           nets and in the machine itself is minimised.          light barriers or rotary encoders. Cameras,            EtherCAT P can be used in the same
           Moreover, cable routes become smaller                 bar code scanners and 3D scanners can be          network together with standard EtherCAT
           and less cluttered, and the size of sensors           integrated for machine vision applications.       technology. Appropriate rectifier units
           and actuators can be reduced. Overall, this                                                             transform common EtherCAT physics to
           opens up significantly more freedom in                EtherCAT P Box modules for all                    EtherCAT P by consistently maintaining
           system design, while minimising material              data acquisition requirements                     the Ethernet data encoding. In the same
           or system costs, which can be further redu-           For the 24 V I/O level, a complete range of       way, a device itself can be supplied with
           ced using specific tools for system planning.         system and I/O components is already avail-       EtherCAT P but, in turn, can also transmit
                                                                 able with IP 67 rating. The entire variety        the EtherCAT protocol.
           EtherCAT P – the ideal sensor,                        of tried and tested EP Box modules is also
           actuator and measurement bus                          available in EPP format with EtherCAT P
           With EtherCAT P, the US and UP currents are           technology for connecting sensors and
           directly fed into the wires of the 100 Mbit/s         actuators. These include different 4-, 8-
           line, resulting in a very cost-effective and          and 16-channel digital input modules
           compact connection. This makes EtherCAT P             (3.0 ms or 10 μs filter), 4-, 8-, 16- and
           the ideal sensor, actuator and measurement            24-channel digital output modules (0.5 A

                                                                                                                                 We reserve the right to make technical changes.
Machine module 1

                                                                                                                                                                        EtherCAT
                                                                                                                                                                        61
     Machine module 3                                                                                                      Machine module 4

                                                                                   24 V DC

Connecting the IP 20 world                                        supply US or the peripheral voltage for actua-         EtherCAT P or extension of an EtherCAT P
The IP 20 EK13xx EtherCAT P Couplers enable                       tors UP can be bridged to the power contacts.          network. Terminal points are used for system
EtherCAT P to be used all the way through,                        The 2-port EK1322 EtherCAT P junction                  and sensor supply US and the peripheral
from the control cabinet right to the machine.                    enables the configuration of EtherCAT P                voltage for actuators UP for the EtherCAT P
The EK1300 Coupler integrates EtherCAT                            star topologies. The ports can be used to              output.
Terminals (ELxxxx) with an EtherCAT P net-                        connect individual EtherCAT P devices or
work. The upper EtherCAT P interface is used                      whole EtherCAT P segments. The EK1322                  EPPxxxx EtherCAT P modules for
to connect the coupler to the network, while                      can be installed at any point in an EtherCAT           the typical range of requirements
the lower P-coded M8 socket is used for opti-                     segment between the EtherCAT Terminals                 of IP 67 I/O signals see page 346
mal continuation of the EtherCAT P topology.                      (ELxxxx). The front terminal points are used
Since EtherCAT P integrates power supply                          for the system and sensor supply US, and               Extensive portfolio of pre-assembled
and communication on a single line, an addi-                      the peripheral voltage for actuators UP for            cables, cables sold by the metre
tional power supply for the coupler via the                       the EtherCAT P outputs.                                and connectors for EtherCAT P
terminal points is not required. Depending                             The EK1310 EtherCAT P extension                   see page 691
on the application, the system and sensor                         enables conversion from EtherCAT to

   Ordering information                           Infrastructure components in IP 67 for EtherCAT P
   EPP1111-0000                                   EtherCAT P Box, industrial housing, with ID switch                                                            379
   EPP1321-0060                                   EtherCAT P Box, industrial housing, 1-channel EtherCAT to EtherCAT P supply module                            380
   EPP1322-0001                                   EtherCAT P Box, industrial housing, 3-way junction with feed (EtherCAT IN, 3 x EtherCAT P OUT)                380
   EPP1332-0001                                   EtherCAT P Box, industrial housing, 3-way junction with refresh (EtherCAT P IN, 3 x EtherCAT P OUT)           380
   EPP1342-0001                                   EtherCAT P Box, industrial housing, 3-way junction without refresh (EtherCAT P IN, 3 x EtherCAT P OUT)        380
   EPP9001-0060                                   EtherCAT P Box, industrial housing, EtherCAT P/EtherCAT, ECP/EC connector with power transmission             381
   EPP9022-0060                                   EtherCAT P Box, industrial housing, 2 x diagnostics (US, UP)                                                  381
   EP9224-0037                                    EtherCAT Box, industrial housing, 4-channel power distribution box ENP to EtherCAT P                          343
   EP9221-0057                                    EtherCAT Box, industrial housing, 1-channel power distribution box ENP to EtherCAT P                          343

   Ordering information                           Infrastructure components in IP 20 for EtherCAT P
   EK1300                                         EtherCAT P Coupler for E-bus terminals (ELxxxx)                                                               118
   EK1310                                         EtherCAT P extension                                                                                          118
   EK1322                                         2-port EtherCAT P junction                                                                                    118

We reserve the right to make technical changes.
EtherCAT G | Scalable I/O performance
EtherCAT

           from 100 to 10,000 Mbit/s
62

           u   www.beckhoff.com/EtherCATG

           EtherCAT                         EtherCAT G                                 EtherCAT G10
           – 100BASE-TX                     – 1000BASE-T                               – 10GBASE-T
           – vast choice of components      –	integration of data-                    –	integration of
                                               intensive devices                          EtherCAT G segments
                                            – very high bandwidth                      – ultimate bandwidth

                                                      Branch controller concept
                                                      –	scalable processing on the fly
                                                         at 100 Mbit/s, 1 Gbit/s and 10 Gbit/s
                                                      – simple configuration
                                                      – universal diagnostics
                                                      –	branch controller for integration of
                                                         EtherCAT into EtherCAT G/G10 networks
                                                      – optimisation of the propagation delay time
                                                      – integration of standard Ethernet segments

                                                                                            We reserve the right to make technical changes.
EtherCAT
                                                                                                                                                              63

EK1400 | EtherCAT G                     CU1411 | EtherCAT G           CU1418 | EtherCAT G              CU1423 | EtherCAT G       FB1400 | EtherCAT G
Coupler                                 branch controller, 1-port     branch controller, 8-port        junction, 3-way           piggyback controller board

Technology expansion for data-                                 Product range for the implementation            Universal EtherCAT features
intensive applications                                         of the technology expansion                     – real-time Ethernet down to
EtherCAT G builds on the principles of                         The branch controller concept for EtherCAT G       the I/O level
the successful EtherCAT technology but                         enables EtherCAT branches that allow paral-     – flexible topology
moves the available data rates up to                           lel operation of 100 Mbit/s segments in a       – outstanding diagnostics
1 Gbit/s and 10 Gbit/s. The EtherCAT                           1 Gbit/s network through corresponding          – synchronisation accuracy
protocol itself remains unchanged.                             transmission rates. The following products         better than 100 ns
     All of the devices on a network receive                   are available for this purpose:                 – exceptionally simple
the telegrams sent by the EtherCAT master.                     – EK1400 EtherCAT G Coupler for                    configuration
Each EtherCAT slave still reads the data                            coupling EtherCAT Terminals to an          – low system costs
addressed to it “on the fly” and inserts its                        EtherCAT G network and EtherCAT G          – maximum performance
own data into the frame as the frame moves                          branch controller functionality            – ability to integrate functional
downstream; now, though, it does this at                       – CU1411 EtherCAT G branch controller              safety
1 Gbit/s or 10 Gbit/s.                                              for coupling EtherCAT and EtherCAT G       – IEEE-802.3-compliant
     Hardware propagation times are the                             segments to an EtherCAT G network
only factor delaying telegram processing.                           with transparent conversion of the
The last device in a segment or stub line                           EtherCAT G and EtherCAT transmission
identifies an open port and utilises the full                       rates
duplex feature of Ethernet network physics                     – CU1418 EtherCAT G branch controller
to send the telegram back to the master.                            for coupling EtherCAT segments to an
EtherCAT G and EtherCAT G10 also retain                             EtherCAT G network for 8 junctions
all other capabilities of EtherCAT.                                 with transparent conversion of the
     Devices with three or four ports (junc-                        EtherCAT G and EtherCAT transmission
tions) enable users to flexibly configure                           rates
network topologies that suit the exact                         – CU1423 EtherCAT G junction for
requirements of their machine architecture.                         topology expansion without changes
Optional machine modules can still be                               in transmission rates
plugged and unplugged via the Hot Connect                      – FB14xx EtherCAT G piggyback
feature. Network-wide diagnostics are avail-                        controller boards as evaluation
able to help minimise machine downtime                              platform for EtherCAT G/G10
and increase availability. And the built-in                         are compatible with the EL9820
system of distributed clocks still ensures                          EtherCAT evaluation kit.
devices are synchronised precisely in
better than 100 ns.

We reserve the right to make technical changes.
CX20xx
                    1 Gbit/s   Embedded PC               EtherCAT G master

                                                                        100 Mbit/s                               100 Mbit/s                                  Segment #1.1
EtherCAT

                               CU1418
                               EtherCAT G
                               branch controller         EtherCAT segment – 100 Mbit/s IP 20 I/O                                 IP 67 I/O
64

                                                                                         100 Mbit/s                                                          Segment #2.1

                               EK1400
                               EtherCAT G                EtherCAT segment – 100 Mbit/s                                           EK1100
                               Coupler
                                                         1 Gbit/s                                     1 Gbit/s                                               Segment #3.1

                               CU1411
                               EtherCAT G
                               branch controller         EtherCAT segment – 1 Gbit/s                                             EtherCAT G junction

           EtherCAT G extends the application range of EtherCAT
           Since EtherCAT was first unveiled in 2003,               ally be supported with a single EtherCAT G        controllers with multiple branches offer
           its exceptional performance has succeeded                master while at the same time incorporating       users immense flexibility when creating
           in satisfying user requirements of almost                other automation equipment or drives.             network topologies, and any existing EL,
           every kind across countless industry sectors                  The branch model for EtherCAT G was          ELX and ELM terminals can be connected
           and applications – in everything from highly             developed to address growing demand               easily via an E-bus-equipped EtherCAT G
           dynamic machine tools and complex pack-                  for ever shorter cycle times in increasingly      Coupler.
           aging systems through to logistics centers.              extensive systems integrating large numbers
                Machine vision, condition monitoring                of devices. On a branch controller, each          Rollout of EtherCAT G made easy
           and highly innovative transport systems                  branch represents its own EtherCAT segment.       EtherCAT is the leading communication
           like the eXtended Transport System (XTS)                 As usual with EtherCAT, the branch control-       standard in industrial automation, and
           and XPlanar all rely on the ability to trans-            lers can be configured via the EtherCAT           this means machine builders today can
           mit several hundred bytes of process data                master, without the need for additional           choose from a broad, unparalleled variety
           per device and cycle. This, along with short             configuration tools. The branch controller        of thousands of compatible devices.
           cycle times of ≤ 1 millisecond, calls for high           supports diagnostics and distributed clocks       This device compatibility is core for the
           data bandwidths. With EtherCAT G, appli-                 synchronisation, forwarding both trans-           technology expansion to EtherCAT G.
           cations and systems like these can gener-                parently to connected segments. Branch

           Measurement technology                  Motion                                   XFC – eXtreme Fast Control

           Vision                                  XTS                                      XPlanar

                                                                                                                                   We reserve the right to make technical changes.
EtherCAT
                                                                                                                                                                           65

EtherCAT and EtherCAT G networks can                               ment without changing the transmission rate.           Parallel processing throughout
be interconnected using a 1-port CU1411                            It supports no branch functionality as such.           segments and downward compatible
branch controller. A branch can operate                                 The EK1400 EtherCAT G Coupler enables             Thanks to the branch concept, the EtherCAT
at 100 Mbit/s as well as 1 Gbit/s, depen-                          the entire variety of Beckhoff EtherCAT                segments can be operated with different
ding on the devices connected.                                     Terminals to be used when implementing                 transfer rates and also in parallel. This ena-
     The 8-port CU1418 branch controller                           an EtherCAT G network. In addition, seg-               bles time- and bandwidth-optimised use of
supports a larger number of branches                               ments can be expanded using an EK1110                  the network in the EtherCAT master. Even
and thus a greater variety of topologies.                          extension and operated as independent                  large-scale systems can be synchronised
In addition, up to eight branches can operate                      EtherCAT segments.                                     and operated using a single, central master.
as independent EtherCAT or EtherCAT G                                   The familiar cables from the extensive            With EtherCAT G and G 10, one port on the
segments, ensuring short cycle times, even                         range of accessories can also be used:                 master is sufficient. Any Beckhoff Industrial
with large numbers of connected devices.                           Cat.5e cables for EtherCAT G or Cat.6                  PC with a standard Gbit/s port can serve as
     In contrast, the CU1423 EtherCAT G                            cables for EtherCAT G10.                               an EtherCAT G master. TwinCAT carries out
junction unit is designed simply to expand                                                                                port control, and from a user’s perspective
the network topology within a given seg-                                                                                  operation is no different.

   Ordering information                           EtherCAT G components
   Branch controllers
         CU1411                                   EtherCAT G branch controller, 1-port, RJ45                                                                        642
         CU1418                                   EtherCAT G branch controller, 8-port, RJ45                                                                        642
         EK1400                                   EtherCAT G Coupler for EtherCAT Terminals                                                                         117
   Topology expansion
         CU1423                                   EtherCAT G junction, 3-port, RJ45                                                                                 643
   Development products
         FB1400                                   EtherCAT G piggyback controller board                                                                              71
         FB1450                                   EtherCAT G10 piggyback controller board                                                                            71

   Ordering information                           Assembled cables for EtherCAT G/EtherCAT G10
   ZK1090-9191-0xxx                               RJ45, plug, straight, male, 8-pin – RJ45, plug, straight, male, 8-pin                                             670
   ZK1096-9191-0xxx                               RJ45, plug, straight, male, 8-pin – RJ45, plug, straight, male, 8-pin                                             671

        For availability status see Beckhoff website at: www.beckhoff.com/EtherCATG

We reserve the right to make technical changes.
EtherCAT | Development Products
EtherCAT

66
                 www.beckhoff.com/EtherCAT-development-products

           SPI                                                                                PIC sample
                                                                                              application

           PDI
           selector switch                                                      Digital I/O interface

                                                                                                  16 bit µC
                                                                                                  interface

           Debug interfaces

           EtherCAT piggyback controller board

                                                                              EtherCAT evaluation kit

                                                                  We reserve the right to make technical changes.
ET1100

                                                                                                                                                                    EtherCAT
                                                                                                                                                                    67

ET1100 | EtherCAT ASIC
The ET1100 EtherCAT ASIC offers                       EtherCAT ASIC enables realisa-      or can be supplied directly.         The 8 kB internal memory
a cost-effective and compact                          tion of simple digital modules      ET1100 is suitable as a universal    (DPRAM) for access to process
solution for realising EtherCAT                       without microcontrollers and        solution for all types of EtherCAT   and parameter data is optionally
slaves. It processes the EtherCAT                     development of intelligent          devices. Due to its compact          addressed via parallel or serial
protocol in the hardware and                          devices with own processor.         design and small number of           data bus. Alternatively, the ASIC
therefore ensures high-perfor-                        The ASIC features distributed       external components, it only         can be used without control-
mance and real-time capability,                       clocks that enable high-precision   requires minimum space on            ler. In this case up to 32 digital
independent of any downstream                         synchronisation (< 100 ns) of       the board.                           signals can be connected directly.
slave microcontrollers and asso-                      the EtherCAT slaves. The supply         The ET1100 ASIC housing
ciated software. Through its three                    voltage is 3.3 V or 5 V; the core   (BGA128) only measures
process data interfaces – digital                     voltage of 2.5 V is generated by    10 x 10 mm. The chip can sup-
I/O, SPI and 8/16 bit µC – the                        the integrated in-phase regulator   port up to four EtherCAT ports.

   Technical data                                 ET1100
   Number of EtherCAT ports                       4 (max. 4 x MII)
   FMMUs                                          8
   SYNC manager                                   8
   DPRAM                                          8 kbyte
   Distributed clocks                             yes (64 bit)
   Process data interfaces                        32 bit digital I/O
                                                  SPI
                                                  8/16 bit µC
   Housing                                        BGA128, 10 x 10 mm
   Further information                            www.beckhoff.com/ET1100

We reserve the right to make technical changes.
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