The BECKHOFF BK9105 is an EtherNet/IP Bus Coupler designed to connect EtherNet/IP networks to the modular Beckhoff Bus Terminals. Acting as the head station of an electronic terminal block, the coupler converts telegrams from the higher-level fieldbus system into the bit-level signals of the internal Bus Terminals. The BK9105 features an integrated 2-channel switch with two RJ45 interfaces, enabling implementation in line topologies without requiring additional external switches.
This bus coupler supports up to 64 Bus Terminals directly, which can be expanded up to 255 terminals using K-bus extension technology. It handles up to 492 bytes of input data and 492 bytes of output data over EtherNet/IP. Configuration and parameterization of the connected I/O stations are managed via the KS2000 configuration software or through the controller using standard configuration tools. The unit is powered by a 24 V DC supply and provides internal current to the K-bus to support connected system terminals.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Model | BK9105 |
| Product Type | EtherNet/IP Bus Coupler |
| Country of Origin | Germany |
| Parameter | Specification |
|---|---|
| Protocol | EtherNet/IP |
| Data transfer rates | 10/100 Mbit/s (automatic recognition) |
| Bus interface | 2 x RJ45 (2-channel switch) |
| Data transfer medium | 4 x 2 twisted pair copper cable; category 3 (10 Mbit/s), category 5 (100 Mbit/s) |
| Max. fieldbus data | 492 byte input and 492 byte output |
| Topology | Line or star wiring |
| Cascading | Up to 20 BK9103 or max. line length 2 km |
| Distance between stations | 100 m between hub/switch and bus coupler or between bus coupler and bus coupler |
| Parameter | Specification |
|---|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Digital peripheral signals | 3,936 inputs/outputs |
| Analog peripheral signals | 122 inputs/outputs |
| Parameter | Specification |
|---|---|
| Power supply | 24 V DC (-15 % / +20 %) |
| Input current | 70 mA + (total K-bus current)/4, 500 mA max. |
| Starting current | 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 / fieldbus) |
| Parameter | Specification |
|---|---|
| Weight | Approx. 170 g |
| Operating temperature | -25 to +60 degC |
| Storage temperature | -40 to +85 degC |
| 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 |
| Protection rating | IP20 |
| Installation position | Variable |
Global Express Shipping
Returns & Warranty
Manufacturer: BECKHOFF
Product No.: BK9105
Country of origin:Germany
Product Type: Bus Coupler
Payment: T/T, Western Union
Weight: 170g
Dimensions: 10 x 5 x 3 cm
Shipping port: Xiamen
Warranty: 12 months
The BECKHOFF BK9105 is an EtherNet/IP Bus Coupler designed to connect EtherNet/IP networks to the modular Beckhoff Bus Terminals. Acting as the head station of an electronic terminal block, the coupler converts telegrams from the higher-level fieldbus system into the bit-level signals of the internal Bus Terminals. The BK9105 features an integrated 2-channel switch with two RJ45 interfaces, enabling implementation in line topologies without requiring additional external switches.
This bus coupler supports up to 64 Bus Terminals directly, which can be expanded up to 255 terminals using K-bus extension technology. It handles up to 492 bytes of input data and 492 bytes of output data over EtherNet/IP. Configuration and parameterization of the connected I/O stations are managed via the KS2000 configuration software or through the controller using standard configuration tools. The unit is powered by a 24 V DC supply and provides internal current to the K-bus to support connected system terminals.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Model | BK9105 |
| Product Type | EtherNet/IP Bus Coupler |
| Country of Origin | Germany |
| Parameter | Specification |
|---|---|
| Protocol | EtherNet/IP |
| Data transfer rates | 10/100 Mbit/s (automatic recognition) |
| Bus interface | 2 x RJ45 (2-channel switch) |
| Data transfer medium | 4 x 2 twisted pair copper cable; category 3 (10 Mbit/s), category 5 (100 Mbit/s) |
| Max. fieldbus data | 492 byte input and 492 byte output |
| Topology | Line or star wiring |
| Cascading | Up to 20 BK9103 or max. line length 2 km |
| Distance between stations | 100 m between hub/switch and bus coupler or between bus coupler and bus coupler |
| Parameter | Specification |
|---|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Digital peripheral signals | 3,936 inputs/outputs |
| Analog peripheral signals | 122 inputs/outputs |
| Parameter | Specification |
|---|---|
| Power supply | 24 V DC (-15 % / +20 %) |
| Input current | 70 mA + (total K-bus current)/4, 500 mA max. |
| Starting current | 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 / fieldbus) |
| Parameter | Specification |
|---|---|
| Weight | Approx. 170 g |
| Operating temperature | -25 to +60 degC |
| Storage temperature | -40 to +85 degC |
| 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 |
| Protection rating | IP20 |
| Installation position | Variable |
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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