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PROFIBUS tester for quick quality diagnosis

Plug-in, measure, result!

Complicated, incomprehensible tables and diagrams were yesterday! The PROFIBUS tester PB-QONE enables a modern maintenance: you get precise measuring results in seconds which can be easily evaluated thanks to the graphic display based on the traffic-light principle. It is the only device on the market to offer fully automatic, non-reactive detection of the PROFIBUS topology under running production conditions. These and other useful features of the compact multifunctional device make it irreplaceable for every maintenance engineer who strives for simple quality diagnosis in the PROFIBUS network.

Your benefits

  • Save time
  • Save effort
  • Save money
  • Topology determination
  • Quality evaluation
  • One device for many tasks


  • Fully automated topology scan during operation
  • Ease of use, well-structured handling
  • Measuring results within seconds
    Simple evaluation through traffic-light function
  • Complete physical and logical analysis

Watch how it works


The PB-QONE is a tool for the complete evaluation of PROFIBUS communication quality. The hardware is connected to the PROFIBUS system by a supplied adapter.

Its simple, intuitive operability and the clear evaluation of the measurement results enable the state of the physical and logical transmission quality in the network to be reliably evaluated within seconds. In addition, the PB-QONE offers fully automatic and completely feedback-free topology determination under running production conditions. As a result, the PB-QONE records the actual connection of all network devices and even identifies repeaters, measuring points and the cable lengths between the devices. The graphic display shows measurement locations and segment structures at a glance. This makes the PB-QONE ideally suited for every thinkable application such as certification and commissioning, maintenance and service as well as troubleshooting.

Technical details

  • PROFIBUS interface: 9-pole sub-D
  • USB interface: USB 2.0
  • Transmission rate: 9,6 kBit/s – 12 MBit/s
  • Voltage supply: approx. 0,5 A via USB
  • Dimensions (H x W x D): 60 x 117 x 35 mm
  • Protective system: IP20
  • operating temperature: 0 °C to +50 °C
  • Storage temperature: -20 °C to +70 °C
  • Conformity: CE

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