Beckhoff EP1122-0001 User Manual
Documentation | EN
EP1122-0001
2-port EtherCAT junction
2020-09-15 | Version: 1.2
Table of contents
Table of contents
1 Foreword ....................................................................................................................................................5
1.1 Notes on the documentation..............................................................................................................5
1.2 Safety instructions .............................................................................................................................6
1.3 Documentation Issue Status..............................................................................................................7
2 EtherCAT Box - Introduction ....................................................................................................................8
3 Product overview.....................................................................................................................................10
3.1 Introduction......................................................................................................................................10
3.2 Technical data .................................................................................................................................11
3.3 Scope of supply ...............................................................................................................................12
4 Basic function principles of EtherCAT junctions.................................................................................13
5 Mounting and connection.......................................................................................................................21
5.1 Dimensions......................................................................................................................................21
5.2 Fixing ...............................................................................................................................................22
5.3 Connection ......................................................................................................................................23
5.3.1 Overview.......................................................................................................................... 23
5.3.2 EtherCAT ......................................................................................................................... 24
5.3.3 Supply voltages ............................................................................................................... 26
5.4 UL Requirements.............................................................................................................................28
5.5 ATEX notes .....................................................................................................................................29
5.5.1 ATEX - Special conditions ............................................................................................... 29
5.5.2 BG2000 - EtherCAT Box protection enclosures .............................................................. 30
5.5.3 ATEX Documentation ...................................................................................................... 31
6 Commissioning........................................................................................................................................32
6.1 Integration in TwinCAT ....................................................................................................................32
7 Appendix ..................................................................................................................................................33
7.1 General operating conditions...........................................................................................................33
7.2 Accessories .....................................................................................................................................34
7.3 Version identification of EtherCAT devices .....................................................................................35
7.3.1 Beckhoff Identification Code (BIC)................................................................................... 39
7.4 Support and Service ........................................................................................................................41
EP1122-0001 3Version: 1.2
Table of contents
EP1122-00014 Version: 1.2
Foreword
1 Foreword
1.1 Notes on the documentation
Intended audience
This description is only intended for the use of trained specialists in control and automation engineering who
are familiar with the applicable national standards.
It is essential that the documentation and the following notes and explanations are followed when installing
and commissioning these components.
It is the duty of the technical personnel to use the documentation published at the respective time of each
installation and commissioning.
The responsible staff must ensure that the application or use of the products described satisfy all the
requirements for safety, including all the relevant laws, regulations, guidelines and standards.
Disclaimer
The documentation has been prepared with care. The products described are, however, constantly under
development.
We reserve the right to revise and change the documentation at any time and without prior announcement.
No claims for the modification of products that have already been supplied may be made on the basis of the
data, diagrams and descriptions in this documentation.
Trademarks
Beckhoff®, TwinCAT®, EtherCAT®, EtherCATG®, EtherCATG10®, EtherCATP®, SafetyoverEtherCAT®,
TwinSAFE®, XFC®, XTS® and XPlanar® are registered trademarks of and licensed by Beckhoff Automation
GmbH. Other designations used in this publication may be trademarks whose use by third parties for their
own purposes could violate the rights of the owners.
Patent Pending
The EtherCAT Technology is covered, including but not limited to the following patent applications and
patents: EP1590927, EP1789857, EP1456722, EP2137893, DE102015105702 with corresponding
applications or registrations in various other countries.
EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH,
Germany.
Copyright
© Beckhoff Automation GmbH & Co. KG, Germany.
The reproduction, distribution and utilization of this document as well as the communication of its contents to
others without express authorization are prohibited.
Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a
patent, utility model or design.
EP1122-0001 5Version: 1.2
Foreword
1.2 Safety instructions
Safety regulations
Please note the following safety instructions and explanations!
Product-specific safety instructions can be found on following pages or in the areas mounting, wiring,
commissioning etc.
Exclusion of liability
All the components are supplied in particular hardware and software configurations appropriate for the
application. Modifications to hardware or software configurations other than those described in the
documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH & Co. KG.
Personnel qualification
This description is only intended for trained specialists in control, automation and drive engineering who are
familiar with the applicable national standards.
Description of instructions
In this documentation the following instructions are used.
These instructions must be read carefully and followed without fail!
DANGER
Serious risk of injury!
Failure to follow this safety instruction directly endangers the life and health of persons.
WARNING
Risk of injury!
Failure to follow this safety instruction endangers the life and health of persons.
CAUTION
Personal injuries!
Failure to follow this safety instruction can lead to injuries to persons.
NOTE
Damage to environment/equipment or data loss
Failure to follow this instruction can lead to environmental damage, equipment damage or data loss.
Tip or pointer
This symbol indicates information that contributes to better understanding.
EP1122-00016 Version: 1.2
Foreword
1.3 Documentation Issue Status
Version Comment
1.2 • First publication in PDF format
1.1 • Foreword updated
• Mounting and connection updated
1.0 • First release
Firmware and hardware versions
This documentation refers to the firmware and hardware version that was applicable at the time the
documentation was written.
The module features are continuously improved and developed further. Modules having earlier production
statuses cannot have the same properties as modules with the latest status. However, existing properties
are retained and are not changed, so that older modules can always be replaced with new ones.
Documentation Firmware Hardware
1.2 02 05
The firmware and hardware version (delivery state) can be found in the batch number (D-number) printed on
the side of the EtherCAT Box.
Syntax of the batch number (D-number)
D: WW YY FF HH
WW - week of production (calendar week)
YY - year of production
FF - firmware version
HH - hardware version
Further information on this topic: Version identification of EtherCAT devices [}35].
Example with D no. 29 10 02 01:
29 - week of production 29
10 - year of production 2010
02 - firmware version 02
01 - hardware version 01
EP1122-0001 7Version: 1.2
EtherCAT Box - Introduction
2 EtherCAT Box - Introduction
The EtherCAT system has been extended with EtherCAT Box modules with protection class IP67. Through
the integrated EtherCAT interface the modules can be connected directly to an EtherCAT network without an
additional Coupler Box. The high-performance of EtherCAT is thus maintained into each module.
The extremely low dimensions of only 126x30x26.5 mm (hxw xd) are identical to those of the Fieldbus
Box extension modules. They are thus particularly suitable for use where space is at a premium. The small
mass of the EtherCAT modules facilitates applications with mobile I/O interface (e.g. on a robot arm). The
EtherCAT connection is established via screened M8connectors.
Fig.1: EtherCAT Box Modules within an EtherCAT network
The robust design of the EtherCAT Box modules enables them to be used directly at the machine. Control
cabinets and terminal boxes are now no longer required. The modules are fully sealed and therefore ideally
prepared for wet, dirty or dusty conditions.
Pre-assembled cables significantly simplify EtherCAT and signal wiring. Very few wiring errors are made, so
that commissioning is optimized. In addition to pre-assembled EtherCAT, power and sensor cables, fieldconfigurable connectors and cables are available for maximum flexibility. Depending on the application, the
sensors and actuators are connected through M8 or M12connectors.
The EtherCAT modules cover the typical range of requirements for I/O signals with protection class IP67:
• digital inputs with different filters (3.0ms or 10μs)
• digital outputs with 0.5 or 2A output current
• analog inputs and outputs with 16bit resolution
• Thermocouple and RTD inputs
• Stepper motor modules
XFC (eXtreme Fast Control Technology) modules, including inputs with time stamp, are also available.
EP1122-00018 Version: 1.2
Fig.2: EtherCAT Box with M8 connections for sensors/actuators
EtherCAT Box - Introduction
Fig.3: EtherCAT Box with M12 connections for sensors/actuators
Basic EtherCAT documentation
You will find a detailed description of the EtherCAT system in the Basic System Documentation for
EtherCAT, which is available for download from our website (www.beckhoff.com) under Downloads.
EtherCAT XML Device Description
You will find XML files (XML Device Description Files) for Beckhoff EtherCAT modules on our website (www.beckhoff.com) under Downloads, in the Configuration Files area.
EP1122-0001 9Version: 1.2
Product overview
3 Product overview
3.1 Introduction
EP1122-0001 | 2-port EtherCAT junction
The 2-port EtherCAT junction enables configuration of EtherCAT star topologies. A modular EtherCAT star
can be realised by using several EP1122 units in a station.
Individual devices or complete EtherCAT strands can be connected at the junction ports. The EtherCAT
junctions are connected via shielded M8 screw connectors with direct display of link and activity status. The
Run LED indicates the status of the EP1122. Through TwinCAT and other suitable EtherCAT masters the
EP1122 also supports coupling and uncoupling of EtherCAT strands during operation (Hot Connect).
Quick links
Technical data [}11]
Connections [}23]
EP1122-000110 Version: 1.2
Product overview
3.2 Technical data
All values are typical values over the entire temperature range, unless stated otherwise.
Technical data EP1122-0001
EtherCAT
Connection 4xM8 socket, 4-pin
(1 input, 3 outputs)
Data transfer medium EtherCAT cables
Cable length up to 100m between two devices (100BASE-TX)
Baud rate 100Mbaud
Supply voltages
Connection Input: 1 x M8 plug, 4-pin, black
Downstream connection: 1 x M8 socket, 4-pin, black
Control voltage U
Nominal voltage 24VDC (-15%/ +20%)
Sum current max. 4A
Current consumption from U
Peripheral voltage U
Nominal voltage 24VDC (-15%/ +20%)
Sum current max. 4A
Current consumption from U
Environmental conditions
Ambient temperature during operation -25…+60°C
Ambient temperature during storage -40…+85°C
Vibration/ shock resistance conforms to EN 60068-2-6 / EN 60068-2-27;
EMC immunity/emission conforms to EN61000-6-2/ EN61000-6-4
Protection class IP65, IP66, IP67 conforms to EN60529
Mechanics
Dimensions approx. 126x 30x 26.5mm (without connectors)
Weight approx. 165g
Installation position variable
Approvals and conformity
Approvals CE, cURus, ATEX
S
1)
S
P
P
120mA
1)
None. UP is only forwarded.
-25…+55°C according to cURus [}28]
0…+55°C according to ATEX [}29]
see also Additional checks [}11].
1)
This value corresponds to the current carrying capacity of the connections for the supply voltages.
Additional checks
The boxes have been subjected to the following checks:
Verification Explanation
Vibration 10 frequency sweeps in 3 axes
5Hz<f<60Hz displacement 0.35mm, constant amplitude
60.1Hz<f<500Hz acceleration 5g, constant amplitude
Shocks 1000 shocks in each direction, in 3 axes
35g, 11ms
EP1122-0001 11Version: 1.2
Product overview
3.3 Scope of supply
Make sure that the following components are included in the scope of delivery:
• 1x EP1122-0001 EtherCAT Box
• 4x protective cap for EtherCAT socket, M8, green (pre-assembled)
• 1x protective cap for supply voltage input, M8, transparent (pre-assembled)
• 1x protective cap for supply voltage output, M8, black (pre-assembled)
• 10x labels, blank (1 strip of 10)
Pre-assembled protective caps do not ensure IP67 protection
Protective caps are pre-assembled at the factory to protect connectors during transport. They may
not be tight enough to ensure IP67 protection.
Ensure that the protective caps are correctly seated to ensure IP67 protection.
EP1122-000112 Version: 1.2
Basic function principles of EtherCAT junctions
4 Basic function principles of EtherCAT junctions
Some Beckhoff EtherCAT devices can be used for junctions in the EtherCAT segment. These include
EK1122, EK1521, EP1122, CU1128 and EP9128. In the following examples only the EK1122 is used. The
technical and system characteristics of the other devices are similar.
EtherCAT handling in the slaves
With EtherCAT as fieldbus protocol a wide range of bus topologies can be used: line, star and tree topology,
with redundancy support even ring topology. The simplest topology is the line topology, in which each
EtherCAT slave passes data only to the next slave.
Fig.4: EtherCAT line topology
When using EtherCAT Couplers, e.g. EK1100, it is possible to create a junction and therefore a kind of tree
topology.
Fig.5: Line topology with extensions
The basic principle is that internally the Ethernet frame(s) with the EtherCAT protocol data continue to be
transported in a logical ring:
• the EtherCAT master sends the frame via the two outgoing lines of the Ethernet cable
• this frame passes each slave once,
• the last logical slave reverses the frame and
• is returned to the master through each EtherCAT slave via two return lines of the Ethernet cable
without further processing.
EP1122-0001 13Version: 1.2
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