PROFINET Installation Guideline for Cabling and Assembly
PROFINET Installation Guideline for Cabling and Assembly
PROFINET Installation Guideline for Cabling and Assembly
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Symbols<br />
This document contains various images. The images are supposed to help the<br />
reader underst<strong>and</strong> the text. The images are usually in black <strong>and</strong> white. A green<br />
color is used to highlight important details. The field below shows the color used <strong>for</strong><br />
this purpose.<br />
The following line style represents equipotential bonding <strong>and</strong> grounding conductors.<br />
The following symbol illustrates the connection to functional ground.<br />
Notice: Do not used functional ground as protective ground.<br />
Protective ground is illustrated using the following symbol:<br />
Protective ground is provided firstly to protect people against electrocution. It also<br />
provides protection <strong>for</strong> equipment against faults. Protective ground ensures that any<br />
fault currents are passed to ground, so causing the fuse to blow or a protection relay<br />
to trip thus de-energizing the system.<br />
12/99<br />
© Copyright by PNO 2009 – all rights reserved
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