Product Description
Beckhoff BK3100
The Beckhoff BK3100 PROFIBUS Bus Coupler is a robust and efficient solution for connecting the Beckhoff Bus Terminal system to a PROFIBUS network. This “Compact” coupler functions as a slave on the PROFIBUS DP bus, automatically detecting the baud rate up to 12 Mbaud. It intelligently identifies all connected I/O terminals and generates a local process image, ensuring seamless data exchange between the fieldbus and the I/O modules. The BK3100 supports up to 64 Bus Terminals (expandable to 255 with a K-bus extension), making it a versatile and scalable component for a wide range of industrial automation and control applications.
Technical Specifications:
- Fieldbus Protocol: PROFIBUS DP/FMS
- Data Transfer Rates: 9.6 kbaud to 12 Mbaud (automatic detection)
- Number of Bus Terminals: Up to 64 (255 with K-bus extension)
- Max. I/O Data: 244 bytes input and 244 bytes output
- Power Supply: 24 V DC (-15 %/+20 %)
- Current Supply (K-bus): 1750 mA
- Bus Interface: 1 x D-sub 9-pin socket
- Protection Class: IP20

Beckhoff BK3100
A compact and reliable Beckhoff BK3100 PROFIBUS Bus Coupler, designed to connect Beckhoff I/O terminals to a PROFIBUS DP network. Features automatic baud rate detection up to 12 Mbaud and supports up to 64 terminals for versatile automation solutions.









