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Functional Bonding and Shielding

Guideline for PROFIBUS and PROFINET

Guideline for PROFIBUS and PROFINET

The organization PROFIBUS & PROFINET International has published recommendations for Functional Bonding and Shielding of PROFIBUS and PROFINET in a document of the same name. Thanks to the diverse, practical input from numerous fieldbus users, the document brings the current state of the art in line with the valid norms. By applying the measures formulated there, material and assembly costs can be significantly reduced when setting up optimum equipotential bonding, while at the same time increasing the immunity of the machines and systems to electromagnetic influences.

* The Use of the guidline is at your own risk. Always use the current version, which you can access by clicking on the "Download Guideline" button.

Functional Bonding and Shielding of PROFIBUS and PROFINET

(Version 3.1 | Sept. 2022)

The document provides recommendations for an optimized construction of automation systems in order to reduce the effects of electromagnetic interference and to achieve an optimal construction of the equipotential bonding system outside Ex areas.

Some essential contents:

  • Fundamentals of electromagnetic interference
  • Basic knowledge of functional bonding and shielding
  • Recommendations for low-interference construction of PROFIBUS and PROFINET networks
  • Proposal for possible quality inspections

These products meet the requirements of the Guideline

Connecting and fastening bare conductor cables

EMClots®

Connecting and fastening bare conductor cables

Product details
Reduce vagrant PE / PA currents

SymFlex®, Symmetrical Motor Cable

Reduce vagrant PE / PA currents

Product details
Measuring the quality of equipotential bondings

EMCheck® MWMZ II

Measuring the quality of equipotential bondings

Product details
Detecting parasitic currents intelligently

EMCheck® ISMZ I

Detecting parasitic currents intelligently

Product details

How does it look in practice?

EMC & Equipotential Bonding in Automation - Read here the practical experience report on the current state-of-the-art by Prof. Dr.-Ing. Niemann, Karl-Heinz, published in atp magazin 4/2019*.

*licensed at Creative Commons-License - CC BY - 4.0 International [unchanged]


EMC brochure

EMC brochure

The brochure explains how to build up a stable EMC structure of automation systems and detect interferences