product listing
Products
Describe
BK1120 | EtherCAT Bus Coupler for standard Bus Terminals.
The BK1120 EtherCAT Coupler is the link between the EtherCAT protocol at fieldbus level and the Bus Terminals. The coupler converts the passing telegrams from Ethernet 100BASE-TX to the internal, fieldbus-independent terminal bus. A station consists of a coupler and up to 64 Bus Terminals plus a bus end terminal. The process image of the EtherCAT system is assigned automatically. Up to 255 Bus Terminals can be connected via the K-Bus extension.
Special features:
- Connection technology: 2 x RJ45 socket
- Connection lengths: up to 100 m
- connects the EtherCAT protocol with the Bus Terminals
The BK1120 has two RJ45 sockets. The upper Ethernet interface is used to connect the coupler to the network; the lower socket serves for the optional connection of further EtherCAT devices in the same segment.
The system and field supply, each 24 V DC, is provided directly at the coupler. The attached Bus Terminals are supplied with the current required for communication from the supplied system voltage. The field supply is forwarded to the individual I/O components via the power contacts with up to 10 A. In the EtherCAT network, the EK1120 coupler can be installed anywhere in the Ethernet signal transfer section (100BASE-TX) – except directly at the switch. The EK9000 and EK1000 couplers are suitable for use at the switch.
| System data | EtherCAT | BK1120 |
|---|---|
| Number of I/O stations | 65,535 |
| Number of I/O points | depending on controller |
| Data transfer medium | Ethernet/EtherCAT Cat.5 cable |
| Max. cable length | 100 m (100BASE-TX) |
| Data transfer rates | 100 Mbit/s |
| Data transfer time | 0.01 ms in the case of 10 modules for 32 bit inputs and outputs each (without K-bus run-time) |
| Technical data | BK1120 |
|---|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Max. number of bytes fieldbus | 1024 byte input and 1024 byte output |
| 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 | 1750 mA |
| Power contacts | max. 24 V DC/max. 10 A |
| Electrical isolation | 500 V (power contact/supply voltage/Ethernet) |
| Distance between stations | 100 m (100BASE-TX) |
| 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/markings | CE, UL, ATEX |
| Ex marking | II 3 G Ex nA IIC T4 Gc |
