D 244 030 00 (equivalent to Beckhoff EK1818)

D 244 030 00 | EtherCAT Coupler with integrated digital inputs/outputs

The EtherCAT Couplers from the EK18xx series combine the functionalities of the EK1100 EtherCAT Coupler with standard digital I/Os in one housing. This results in a compact design that is especially suitable for applications with a low number of I/Os. Like the EK1100, the EK18xx coupler can be extended by all EL/ES terminals. The digital I/Os are implemented with a 1-wire technique. The wiring can be implemented without tools using a direct plug-in technique with solid wire conductors or ferrules.

The D 244 030 00 has eight digital inputs and four digital outputs.

Technical data

D 244 030 00

Task within EtherCAT system

coupling of EtherCAT Terminals (ELxxxx) to 100BASE-TX

EtherCAT networks

Data transfer medium

Ethernet/EtherCAT cable (min. CAT 5), shielded

Distance between stations

max. 100 m (100BASE-TX)

Number of EtherCAT Terminals

up to 65,534




approx. 1 µs

Data transfer rates

100 Mbaud

Bus interface

2 x RJ45

Nominal voltage

24 V DC (-15 %/+20 %)

Current supply E-bus

1000 mA

Current consumption from UP

40 mA + load

Current consumption from US

100 mA + (∑ E-bus current/4)

Number of inputs



EN 61131-2, type 1/3

“0“ signal voltage

-3…+5 V (EN 61131-2, type 1/3)

“1“ signal voltage

15…30 V (EN 61131-2, type 3)

Input filter

3.0 ms

Input current

typ. 3 mA (EN 61131-2, type 3)

Number of outputs


Load type

ohmic, inductive, lamp load

Max. output current

0.5 A (short-circuit-proof) per channel

Short circuit current

typ. < 2 A

Reverse voltage protection


Breaking energy

< 150 mJ/channel

Switching times

typ. T ON: 60 µs, T OFF: 300 µs

Electrical isolation

500 V (power contact/supply voltage/Ethernet),
500 V (E-bus/field potential)

Conductor types

solid wire, stranded wire and ferrule

Conductor connection

solid wire conductors: direct plug-in technique; stranded wire conductors

and ferrules: spring actuation by screwdriver

Rated cross-section

solid wire: 0.08…1.5 mm²; stranded wire: 0.25…1.5 mm²; ferrule:

0.14…0.75 mm²

Operating/storage temperature

-25…+60 °C/-40…+85 °C

Relative humidity

95 %, no condensation

Vibration/shock resistance

conforms to EN 60068-2-6/EN 60068-2-27

EMC immunity/emission

conforms to EN 61000-6-2/EN 61000-6-4

Protect. class/installation pos.

IP 20/variable



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You can also find more documentation on the following site