Designed to bridge the gap between high-speed EtherCAT networks and standard K-bus assemblies, the BK1120 serves as an efficient communication interface for modular automation systems. This bus coupler maps the technical signals from standard Beckhoff Bus Terminals directly into the EtherCAT protocol, enabling seamless integration into distributed control architectures without sacrificing legacy terminal compatibility.
The BK1120 establishes a high-performance link between physical I/O points and the controller. It automatically handles the conversion of process data and local bus diagnostic information, presenting it clearly to the EtherCAT master. With dual RJ45 interfaces, this module supports flexible line and daisy-chain topologies, simplifying field wiring and reducing installation costs in complex control environments.
| Manufacturer | BECKHOFF |
| Part Number / Model | BK1120 |
| Product Type | EtherCAT Bus Coupler for standard Bus Terminals |
| Number of Bus Terminals | 64 (up to 255 with K-bus extension) |
| Max. Process Data Space | 1024 bytes input / 1024 bytes output |
| Bus Interface | 2 x RJ45 |
| Distance Between Stations | Max. 100 m (100BASE-TX) |
| 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 |
| Current Supply K-Bus | 1750 mA |
| Power Contacts | Max. 24 V DC / Max. 10 A |
| Recommended Fuse | <= 10 A |
| Electrical Isolation | 500 V (power contact / functional ground / K-bus) |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95%, no condensation |
| Weight | Approx. 0.15 kg |
| Interface Type | Function |
|---|---|
| RJ45 Port 1 (IN) | EtherCAT signal input connection from previous station or master |
| RJ45 Port 2 (OUT) | EtherCAT signal output connection to next station in daisy-chain |
| Spring Force Terminals | 24 V DC power supply input and power contact distribution feed |
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Returns & Warranty
Manufacturer: BECKHOFF
Product No.: BK1120
Country of origin:Germany
Product Type: EtherCAT Bus Couplers
Payment: T/T, Western Union
Weight: 150g
Shipping port: Xiamen
Warranty: 12 months
Designed to bridge the gap between high-speed EtherCAT networks and standard K-bus assemblies, the BK1120 serves as an efficient communication interface for modular automation systems. This bus coupler maps the technical signals from standard Beckhoff Bus Terminals directly into the EtherCAT protocol, enabling seamless integration into distributed control architectures without sacrificing legacy terminal compatibility.
The BK1120 establishes a high-performance link between physical I/O points and the controller. It automatically handles the conversion of process data and local bus diagnostic information, presenting it clearly to the EtherCAT master. With dual RJ45 interfaces, this module supports flexible line and daisy-chain topologies, simplifying field wiring and reducing installation costs in complex control environments.
| Manufacturer | BECKHOFF |
| Part Number / Model | BK1120 |
| Product Type | EtherCAT Bus Coupler for standard Bus Terminals |
| Number of Bus Terminals | 64 (up to 255 with K-bus extension) |
| Max. Process Data Space | 1024 bytes input / 1024 bytes output |
| Bus Interface | 2 x RJ45 |
| Distance Between Stations | Max. 100 m (100BASE-TX) |
| 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 |
| Current Supply K-Bus | 1750 mA |
| Power Contacts | Max. 24 V DC / Max. 10 A |
| Recommended Fuse | <= 10 A |
| Electrical Isolation | 500 V (power contact / functional ground / K-bus) |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95%, no condensation |
| Weight | Approx. 0.15 kg |
| Interface Type | Function |
|---|---|
| RJ45 Port 1 (IN) | EtherCAT signal input connection from previous station or master |
| RJ45 Port 2 (OUT) | EtherCAT signal output connection to next station in daisy-chain |
| Spring Force Terminals | 24 V DC power supply input and power contact distribution feed |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|
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