EtherCAT Coupler for standard Bus Terminals BK1120, EtherCAT
Power LEDs
(Bus Terminal)
Input for
power contacts
Power contacts
Signal input EtherCAT
Link/Act In
Configuration interface
Signal output EtherCAT
Link/Act Out
extended temperature range

BK1120 | EtherCAT Coupler for standard Bus Terminals

Technical data BK1120
Task within EtherCAT system coupling of standard Bus Terminals (KLxxxx) to 100BASE-TX EtherCAT networks
Data transfer medium Ethernet/EtherCAT CAT5 cable
Distance between stations 100 m (100BASE-TX)
Number of Bus Terminals 64 (255 with K-bus extension)
Max. number of bytes fieldbus 1,024 byte input and 1,024 byte output
Protocol EtherCAT
Data transfer rates 100 Mbaud
Configuration possibility via KS2000 or EtherCAT (ADS)
Bus interface 2 x RJ45
Power supply 24 V DC (-15 %/+20 %)
Input current 70 mA + (total K-bus current)/4, 500 mA max.
Starting current approx. 2.5 x continuous current
Recommended fuse ≤ 10 A
Current supply K-bus 1,750 mA
Power contacts 24 V DC max./10 A max.
Electrical isolation 500 V (power contact/supply voltage/Ethernet)
Weight approx. 150 g
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
Approvals CE, UL, Ex
Cordsets cordsets and connectors