BK3110

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The BK3110 EtherCAT Bus Coupler supports up to 64 bus terminals, handles 256 digital peripheral signals, and includes a 9-pin D-sub plug with shielding for bus connection. Part of the BK EtherCAT Bus Couplers series by Beckhoff, it operates at 24 VDC, provides a K-bus current of up to 500 mA, and features IP20 protection.

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Product Description:

The BK3110 EtherCAT Bus Coupler by Beckhoff operates with a 24 V DC supply voltage in industrial automation. The input current equals 80 mA, combined with one-fourth of the total K bus current quantity. The operating period does not exceed 200 mA as the maximum input current. The unit provides an IP20 protection class for its safe operational use.

The supply current of BK3110 Bus coupler reaches 500 mA when terminals are connected. A maximum of 64 bus terminals can be directly accessed through the K bus for connection by the coupler. It operates with a capacity to handle 256 digital input and output peripheral signals. The presented coupler model does not support analog peripheral signals through its interface. The processing speed of the unit arrives at 12 Mbaud to optimize data transfer quality. The BK3110 Bus coupler utilizes DP and DPV1 as its supported communication methods. A stable data exchange occurs through the D-sub 9-pin interface, which connects the bus. The coupler delivers power contact voltage at a maximum of 24 V DC or AC and can transfer current to 10 A. The electrical strength of the BK3110 reaches 500 Veff between power contacts and the supply voltage and the fieldbus. The normal weighing scale for this device stands at 150 grams.

The BK3110 Bus coupler operates within a temperature range from 0 °C to +55 °C and requires storage within -20 °C to +85 °C. This Bus coupler maintains reliability when exposed to humidity at 95%, along with preventing dew formation. It fulfills requirements from IEC 68-2-6 vibration and IEC 68-2-27 shock stability standards for stability standards. The coupler enables free mounting at any specific installation position. The coupler supports connection for up to 64 bus terminals directly through the K bus.

Analog Peripheral Signals
Not Supported
Baud Rate (automatic Detection)
Up to max. 12 Mbaud
Bus Connection
1 x D-sub plug, 9-pin with shielding
Configuration Possibility
Via KS2000 configuration software or controller
Digital Peripheral Signals
256 inputs/outputs
Input Current
70 mA + (total K-bus current)/4, max. 200 mA
K-bus Current
Up to 500 mA
Max. Number Of Bytes (inputs And Outputs)
32 bytes
Number Of Bus Terminals
64
Permissible Ambient Temperature (operation)
0°C to +55°C
Permissible Ambient Temperature (storage)
-25°C to +85°C
Power Supply
24 VDC (-15% / +20%)
Protection Class
IP20
Recommended Fuse
Maximum 10 A
Starting Current
2.5 x continuous current

Frequently Asked Questions about BK3110:

Q: What is the impact of the 95% humidity tolerance in the BK3110 Bus Coupler on operational stability?

A: BK3110 Bus Coupler's 95% humidity tolerance ensures stable operation in high-moisture environments. This prevents system failures due to condensation risks.

Q: How does the IEC 68-2-6 vibration standard compliance enhance the durability of BK3110 Bus Coupler?

A: Compliance with IEC 68-2-6 vibration standards ensures BK3110 can withstand industrial mechanical stress. This enhances device longevity under harsh operational conditions.

Q: Why is the maximum 10 A current transfer capability important in BK3110 Bus Coupler power distribution?

A: The 10 A current transfer capability of BK3110 ensures adequate power delivery across bus terminals. This feature supports high-demand applications requiring stable current flow.

Q: How does the IP20 protection class of BK3110 ensure operational reliability in industrial environments?

A: The IP20 rating of BK3110 prevents ingress of solid objects, ensuring operational safety. It maintains system integrity in controlled industrial environments.

Q: What advantage does the free mounting installation offer for the BK3110 Bus Coupler?

A: Free mounting installation of BK3110 Bus Coupler offers flexibility in integrating the unit into various setups. It simplifies system design without positional constraints.


Internal Product Review

  • ‘‘The BK3110 Bus Coupler by Beckhoff stands out with its stable 24 V DC/AC power contact capability and 10 A current transfer efficiency. It ensures consistent communication through DP and DPV1 protocols, while supporting high peripheral connectivity with 256 digital I/Os. It's compliance with IP20 protection and IEC vibration standards.’’

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