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                                                                    • BECKHOFF BK3150 PROFIBUS Bus Coupler

                                                                      Product Overview

                                                                      The Beckhoff BK3150 is a PROFIBUS-DP Bus Coupler designed to connect Beckhoff Bus Terminals to a PROFIBUS industrial fieldbus network. It enables communication between a PLC or fieldbus master and distributed digital and analog I/O modules. The compact design supports up to 64 Bus Terminals, expandable to 255 with a K-bus extension.

                                                                      

                                                                      Beckhoff Worldwide

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                                                                      Key Technical Specifications

                                                                      Specification	Details
                                                                      Brand	Beckhoff
                                                                      Model	BK3150
                                                                      Product Type	PROFIBUS Bus Coupler
                                                                      Product Series	BK Bus Coupler
                                                                      Fieldbus Protocol	PROFIBUS-DP
                                                                      Maximum Bus Terminals	64; up to 255 with K-bus extension
                                                                      Maximum Process Data	128 bytes input and 128 bytes output
                                                                      Transmission Rate	Automatic detection up to 12 Mbaud
                                                                      Bus Interface	9-pin D-sub connector
                                                                      Power Supply	24 V DC (-15% / +20%)
                                                                      K-bus Current Supply	Up to 1,750 mA, depending on hardware version
                                                                      Power Contact Rating	Maximum 24 V DC, 10 A
                                                                      Electrical Isolation	500 V between power contacts, supply, and fieldbus
                                                                      Protection Rating	IP20
                                                                      Operating Temperature	-25°C to +60°C
                                                                      Mounting	35 mm DIN rail
                                                                      Weight	Approx. 100 g

                                                                      

                                                                      Beckhoff Worldwide

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                                                                      Features & Advantages

                                                                      • Connects distributed I/O terminals to PROFIBUS-DP networks.

                                                                      • Automatically detects communication speeds up to 12 Mbaud.

                                                                      • Supports digital and analog I/O configurations.

                                                                      • Provides configurable PROFIBUS station addressing.

                                                                      • Compact housing saves space in industrial control cabinets.

                                                                      • Supports expansion through compatible Beckhoff K-bus terminals.

                                                                      Typical Applications

                                                                      • PLC-based industrial automation

                                                                      • Distributed I/O systems

                                                                      • Manufacturing and assembly lines

                                                                      • Machine control panels

                                                                      • Process automation and monitoring

                                                                      • PROFIBUS communication networks

                                                                      Important Notes

                                                                      • Verify compatibility with the PLC's PROFIBUS master and the selected Bus Terminals.

                                                                      • A suitable 24 V DC power supply is required.

                                                                      • Confirm the hardware revision when checking K-bus current capacity.

                                                                      • The BK3150 is a bus coupler, not a standalone PLC controller.

The structure and details of the product：

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