PROFIBUS DP and PROFINET Objectives and outline Lecture ...
PROFIBUS DP and PROFINET Objectives and outline Lecture ...
PROFIBUS DP and PROFINET Objectives and outline Lecture ...
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• Main master –hierarchy<br />
– Master controls the traffic<br />
– Additional mechanism<br />
to add another master<br />
(redundancy, token passing, …)<br />
master<br />
Communication types<br />
(backup master<br />
or token passing)<br />
PLC PLC<br />
AP<br />
AP<br />
• Peer‐to‐peer – distributed<br />
input<br />
slaves<br />
output<br />
– PLC (master station)<br />
–<br />
can exchange data,<br />
share process<br />
variables, …<br />
Redundant masters<br />
PLC<br />
AP<br />
PLC<br />
AP<br />
More<br />
masters<br />
PLC<br />
AP<br />
– Distributed<br />
„inteligence“ – masters<br />
<strong>and</strong>/or slaves<br />
– The stations can have the same<br />
medium access rights (no master, no slaves) input<br />
slaves<br />
output<br />
A bit of history<br />
• Siemens – Sinec L2 – 80’s<br />
• st<strong>and</strong>ard DIN 19245<br />
• st<strong>and</strong>ard EN 50170 – 1996<br />
• st<strong>and</strong>ard IEC 61158 – 2003<br />
<strong>PROFIBUS</strong> <strong>DP</strong><br />
<strong>PROFIBUS</strong> International – PI<br />
• 2009 –20 years of <strong>PROFIBUS</strong>, the world most wide‐spread<br />
• Maintaining <strong>and</strong> developing specifications<br />
• Germany, USA, UK, Switzerl<strong>and</strong>, China, Japan, …<br />
• CZ – Profibus CZ, competency centre, training centre<br />
<strong>PROFIBUS</strong> & <strong>PROFINET</strong> International<br />
17.10.2012<br />
3
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