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EtherCAT® Bus Coupler

The EtherCAT® Bus Coupler connects the real-time Ethernet system with modular, extendable electronic terminal blocks. A complete unit consists of a bus coupler, a set of bus terminals and one end terminal.


Product available worldwide

The ETHERCAT Coupler connects EtherCAT, the real-time Ethernet system, with the modular, extendable electronic terminal blocks. A unit consists of a Bus Coupler, a set of terminals, and one end terminal.

The Bus Coupler recognises the connected Bus Terminals and automatically allocates them into the EtherCAT process image. The Bus Coupler is connected to the network via the upper Ethernet interface. The lower RJ 45 socket may be used to connect further EtherCAT devices in the same strand.

In the EtherCAT network, the ETHERCAT Coupler can be installed anywhere in the Ethernet signal transfer section (100BASE-TX) – except directly at the switch.

EtherCAT (Ethernet Control Automation Technology) is the Ethernet solution for industrial automation, characterized by outstanding performance and particularly simple handling. EtherCAT enables the Ethernet star topology to be replaced with a simple line structure. Optionally, EtherCAT may also be wired in the “classic” way using switches, in order to integrate further Ethernet devices. The master requires no special plug-in card and can be implemented on any existing Ethernet controller using a very simple interface. EtherCAT is therefore also well suited to small and medium control applications, where it will also open up new areas of application for distributed I/Os.

For EtherCAT a separate I/O system in protection class IP 20 is available in the form of EtherCAT Terminals. In contrast to Bus Terminals, where the fieldbus signal is implemented within the Bus Coupler on the internal, fieldbus-independent terminal bus, the EtherCAT protocol remains fully intact down to the individual terminal.

The ETHERCAT Coupler supports the operation of all Bus Terminals. As far as the user is concerned, handling of the analog inputs/outputs is not different to other series. The information is available in the process image of the controller for processing in the form of a byte array.

The analog and multifunctional Bus Terminals can be adapted to each specific application. Depending on the type, the analog Bus Terminals’ registers contain temperature ranges, gain values and linearisation characteristics. The Bus Terminals store settings permanently and in a fail-safe manner. Optionally, the Bus Terminals can also be controlled by the control system. Via function blocks (FBs), the programmable logic controller (PLC) or the Programmable Automation Controller (PAC) handles configuration of the complete periphery during the start up phase. If required, the controller can upload the decentralized created configuration data in order to centrally manage and store this data. Therefore, new adjustments are not necessary in the event of replacement of a Bus Terminal. The controller automatically sets the required setting on power up.

EtherCAT Specifications

System Data AKT-ECT-000-000
Number of I/O stations 65,535
Number of I/O points depending on controller
Data transfer medium Ethernet/EtherCAT CAT5 cable
Max. cable length 100 m (100BASE-TX)
Data transfer rates 100 Mbaud
Data transfer time 0.01 ms in the case of 10 modules for 32 bit inputs and outputs each (without Standard Bus run-time)
Electrical and Mechanical Specification AKT-ECT-000-000
Number of Bus Terminals 64 (255 with Standard Bus extension)
Max. number of bytes fi eldbus 1,024 byte input and 1,024 byte output
Configuration possibility EtherCAT (ADS)
Bus interface 2 x RJ 45
Power supply 24 V DC (-15 %/+20 %)
Input current 70 mA + (total Standard Bus current) /4, 500 mA max.
Starting current approx. 2.5 x continous current
Recommended fuse ≤ 10 A
Supply current Standard Bus 1,750 mA
Power contacts 24 V DC max./10 A max.
Electrical isolation 500 Vrms (power contact/supply voltage/Ethernet)
Distance between stations 100 m (100BASE-TX)
Weight approx. 150 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27/29
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Title Language(s) Date Size Email
pdfKAS IO Module Installation Manual (AKT-AN-410_810) EN (REV 1.2) English 30 Nov 2010 734.34 KB
Title Language(s) Date Size Email
pdfEtherCAT Coupler Datasheet en-us Rev A English 243.49 KB
pdfKollmorgen 2-Channel Analog Output Datasheet en-us revB English 147.54 KB
pdfKollmorgen 2Ch Thermocouple Datasheet en-us revA English 195.51 KB
pdfKollmorgen 4-8 Channel 0-10V Analog Input Datasheet EN RevC English 527.64 KB
pdfKollmorgen 4-8 Channel 0-10V Analog Output Datasheet EN Rev B English 250.41 KB
pdfKollmorgen 4-8 Channel 0-20mA Analog Input Datasheet en-us revA English 201.77 KB
pdfKollmorgen 4-8 Channel 0-20mA Analog Output Datasheet en-us revA English 193.8 KB
pdfKollmorgen 4Ch-Digital-Input Datasheet en-us revA English 11 Nov 2010 178.07 KB
pdfKollmorgen 4Ch-Digital-Output Datasheet en-us revA English 191.72 KB
pdfKollmorgen 4Ch-Thermocouple Datasheet en-us revA English 187.25 KB
pdfKollmorgen 8Ch Digital Output Datasheet en-us revA English 176.5 KB
pdfKollmorgen 8Ch-Digital-Input DataSheet en-us revA English 181.42 KB
pdfKollmorgen AKT-SM-L50-000 Datashet EN Rev A English 197.39 KB
pdfKollmorgen Bus-End-Terminal DataSheet en-us revA English 160.14 KB
pdfKollmorgen Isolation-Separation Datasheet en-us revA English 164.23 KB
pdfKollmorgen Profibus-Coupler Datasheet en-us revA English 243.46 KB
pdfKollmorgen Relay Datasheet en-us revA English 185.33 KB
pdfKollmorgen Stepper Module AKT-SM-L15-000 Datasheet EN Rev A English 183.5 KB
pdfStandard Bus Fused Power Feeds Datasheet English 271.23 KB
pdfStandard Bus Fused Power Feeds Datasheet EN RevA English 192.21 KB
pdfStandard End Terminal Datasheet EN RevA English 160.14 KB
Title Language(s) Date Size Email
Kollmorgen Automation Solutions Catalog English 01 Dec 2017 14.02 MB
Kollmorgen Automationslösungen Katalog German 09 Apr 2017 11.17 MB
Kollmorgen otomasyon ve hareket kontrol çözümleri kataloğu TR Turkish 12 Feb 2016 11.05 MB
科尔摩根 运动控制及伺服系统解决方案 Chinese, Simplified 26 Jan 2018 16.64 MB