Lenze Controller-based Automation - Manual (Page 44)

4 System description
4.3 Network topologies
44
Lenze · Controller-based Automation - Visualisation · System Manual · DMS 1.5 EN · 04/2014 · TD17
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Functions
• Access to Siemens S7-300/400 control systems via PROFIBUS (MPI)
• Access to VIPA control systems via PROFINET (RFC1006)
• Visualisation variables can be imported from STEP7®
From the view of wiring, a PROFINET network is not a bus in the true sense, but a "switched"
Ethernet with point-to-point connections.
• This structure is described below. The real time data transfer runs via the connections printed in
violet.
• The connections printed in yellow are purely used for Ethernet data transfer. Data are also
transferred via PROFINET without real time interferences.

Note!
The data of the PROFINET field devices connected cannot be accessed directly! As an
alternative, the variables of the field devices should be accessed via the control system.
 Access to the control system and the field devices connected ( 28)

For more information regarding the use of PROFINET®, please see the following sets of
documentation:
• "Controller-based Automation" system manual
• "Controller-based Automation - PROFINET®" communication manual