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ProfiHub B5+
17020R (replaces 17010)

ProfiHub B5+

Due to the demands for high-speed networks, PROFIBUS DP must comply with strict guidelines concerning spur lines. The ProfiHub B5+ is the perfect cost-efficient solution to bridge user’s requirements and create reliable star networks. It is an essential component to obtain better control during maintenance and upgrading of the network. Note: B5+ replaces the standard PROCENTEC B5 unit, providing additional functionality with no physical design changes. The ProfiHub B5+ has the following unique features:

  • DB9 connector as well as a screw connector
  • Switchable termination on each segment
  • Backbone repeater
  • Diagnostics slave device
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Multi-Channel Repeater 'ProfiHub B5+'

As an economic solution, the B5+ saves costs through the reduction of traditional PROFIBUS repeaters. This product is equipped with 5 galvanically isolated transparent repeaters on a single unit (offering 6 segments). Each segment can handle 31 devices and a cable length equal to the main bus. To save costs on plugs and offer flexibility, it contains screw terminals as well as DB9 connectors. The DB9 connectors are also perfect measurement points for ProfiTrace to quickly measure all segments. Termination for each segment is on-board and switchable.


For PROFIBUS network designs, the ProfiHub B5+ offers a reliable and robust backbone solution with robust message checking and selectable redundancy on communication and power supply. The extensive monitoring of messages in combination with redundancy on the communication and voltage, makes the ProfiHub the perfect access port for network components. An alarm contact is linked to events based on the status of the power supply and the bus redundancy if this is enabled. Unlimited cascading of repeaters is possible with 1200 meter spur lines.
The ProfiHub B5+R is a powerful package to ensure reduced installation complexity, increased time utilization and better deployment of project resources.

This creates an even more reliable network. An alarm contact is linked to events based on the status of the power supply and the bus redundancy if this is enabled.

The ProfiHub B5+ is used in several application areas worldwide. 


This product is UL-listed. Read more about UL-certification. 

ProfiHub barrier noice and EMC profihub dynamic spur lines







The ProfiHub B5+R model is DNV-certified. 



Technical specifications

Application areas

  • Dynamic spur lines to devices
  • Star, tree and bus structured networks
  • Removable drives and motors
  • Pull/Plug motor control centers
  • EMC sensitive applications
  • Barrier for non-galvanic isolated equipment

Your benefits

  • Hot slave insertion/removal during operation
  • Short circuit protection on each channel
  • Compact and robust construction
  • Screw terminals and DB9 connectors can be mixed
  • Conveniently arranged networks
  • Extendable installations
  • Cost saving

Product features

  • 5 galvanically isolated channels (6 segments)
  • Transparent for all PROFIBUS DP protocols in Hub
  • Suitable for PROFIsafe and MPI in Hub
  • 31 Devices per channel
  • Max. 1200 m spur line length (depends on baudrate)
  • 9.6 Kbps - 12 Mbps selectable per channel
  • Screw terminals and DB9 connectors
  • Configurable grounding system
  • Integrated termination facilities
  • IP 20 classification
  • Redundant power supply
  • Bus redundancy option in Hub mode
UL listed ePLAN

Downloads and extra information

Below you can find all available downloads for this product.

Product card
Reference projects
EMC Declaration
DNV certificate
DWG Drawing
EU Certificate of Conformity



  • PROFIBUS Troubleshooting & Maintenance

    The PROFIBUS Troubleshooting and Maintenance training course is fully concentrated on those who install and maintain PROFIBUS installations.

  • Certified PROFIBUS Installer

    The Certified PROFIBUS Installer course is essential for electrical engineers and technicians requiring the necessary installation and testing skills for their PROFIBUS DP/PA projects.

  • Certified PROFIBUS Engineer

    'Distinguish yourself from the others and show that you are the expert.....Become a Certified PROFIBUS Engineer.'

Training overview