Functional Earthing and Shielding

PROFINET , PROFIBUS

Description:

Functional Earthing and Shielding  of PROFIBUS and PROFINET
This document deals with functional earthing, the shielding of PROFIBUS/PROFINET networks and with equipotential bonding in the corresponding plants in non-hazardous areas. The document describes an optimized structure for process automation systems intended to reduce the effects of electromagnetic interference (EMI) and disturbances by using equipotential bonding systems. In a tiered approach, the readers are first made familiar with the technical basics of electromagnetic compatibility (EMC), equipotential bonding and shielding. In chapter 4, six recommendations for action are developed by using a plant example.
 

This document has no normative character. It may be useful in certain operating environments, in certain technical constellations or when used in certain countries to deviate from the given recommendations. In this case, installers and operators of the plant should weigh up the advantages and disadvantages of the recommendations made in the specific application and, if deemed appropriate, decide on the implementation of a different solution if necessary.

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Funktionserdung und Schirmung von PROFIBUS und PROFINET
Dieses Dokument befasst sich mit der Funktionserdung und Schirmung von PROFIBUS-/PROFINET-Netzwerken sowie dem Potentialausgleich in den zugehörigen Anlagen außerhalb von Ex-Bereichen. Dieses Dokument befasst sich mit einem optimierten Aufbau von automatisierungstechnischen Anlagen, um die Auswirkungen elektromagnetischer Störungen, sowie Störungen über Potentialausgleichssysteme zu reduzieren. In einem mehrstufigen Ansatz werden die Leser zunächst mit Grundlagen zu den Themen elektromagnetische Verträglichkeit, Potentialausgleich und Schirmung vertraut gemacht. Anschließend werden in Kapitel 4 sechs Handlungsempfehlungen anhand einer Beispielanlage hergeleitet.
 

Dieses Dokument hat keinen normativen Charakter. Es kann in bestimmten Einsatzumgebungen, in bestimmten technischen Konstellationen oder beim Einsatz in bestimmten Ländern sinnvoll sein, von den gegebenen Handlungsempfehlungen abzuweichen. Errichter und Betreiber der Anlage sollten in diesem Fall die Vor- und Nachteile der gemachten Empfehlungen in der konkreten Anwendung abwägen und, sofern als sinnvoll erachtet, gegebenenfalls die Umsetzung einer abweichenden Lösung beschließen.
 

Details:
Version: 2.6
Order No.:      8.101 / 8.102
Language: German / English

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Disclaimer / License:

License for supply of Specifications

Licensee acquires this license solely from PROFIBUS Nutzerorganisation e.V., having its principal place of business in Karlsruhe, Germany (hereinafter referred to as “Licensor”).

1. Specifications

1.1 Subject of this license agreement is each technical specification issued by the Licensor, in electronic form (hereinafter referred to as “SPECIFICATION”). Software is provided in object code only.

1.2 The SPECIFICATION distributed hereby has been developed by members of the Licensor. Licensor hereby notifies Licensee that the SPECIFICATION is not an industrial standard acknowledged by any standardization body or otherwise and may be further enhanced.

2. Rights and Duties of Licensee

2.1 Licensor hereby grants to Licensee the right to use the SPECIFICATION exclusively for developing and supporting products compliant with the SPECIFICATION. Licensee may copy the SPECIFICATION for this purpose and for data backup purposes.

2.2 Licensee shall not be entitled to modify, decompile, reverse engineer or extract any individual parts of the SPECIFICATION, unless this is permitted by mandatory copyright law. Furthermore, Licensee shall not be entitled to remove any alphanumeric identifiers, trademarks or copyright notices from the SPECIFICATION and, insofar as Licensee is entitled to make copies of the SPECIFICATION, Licensee shall copy them without alteration.

2.2 Licensee shall not be entitled to publish, market or distribute the SPECIFICATION. However, Licensee shall be entitled to transfer the right to use the SPECIFICATION granted to it to a third party, provided that Licensee concludes a written agreement with the third party in conformance with all of the conditions contained in this Section 2 and on the proviso that Licensee does not retain any copies of the SPECIFICATION.

3. Liability of Licensor

3.1 Licensor shall have no obligation to enhance the SPECIFICATION and shall assume no liability in case the SPECIFICATION or future versions thereof shall not be approved as an industrial standard.

3.2 The SPECIFICATION is delivered free of charge "as-is” to all members of the Licensor. Any liability and warranty for the SPECIFICATION - irrespective of the legal reason therefore - e.g. as to quality or title, its correctness, absence of defects, absence of claims of third party rights or in relation to its completeness and/or fitness for any specific purpose is excluded.
The Licensor is not liable for damages due to the use of the SPECIFICATION or for damages which have been caused by the design of hardware or software according to the information provided within the SPECIFICATION. Any liability for consequential, special or indirect damages including, but not limited to, loss of profit, loss of use and business interruption, regardless of the theory of law, are excluded.

3.3 The aforesaid exclusion of liability shall not apply as far as there is a legally binding liability, e.g. under product liability legislation, in cases of intent, of gross negligence, of injury of life, body or health or wilful hiding of a defect, or due to violation of major contractual obligations. However, liability for damages arising from the violation of major contractual obligations shall be limited to the foreseeable damage normally covered by a contract, unless in cases of intent or gross negligence. No change in the burden of proof to the detriment of Licensee is involved by the aforesaid provision.

4. Place of Jurisdiction and Applicable Law

4.1 The sole place of jurisdiction shall be the principal place of business of Licensor.

4.2 All relations arising out of the contract shall be governed by the substantive law of Germany, to the exclusion of the United Nations Convention on Contracts for the International Sale of Goods (CISG).

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