SIEMENS
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Siemens IK PI · 2015
PROFINET/Industrial Ethernet
Motion Control System SIMOTION
PROFIdrive for SIMOTION
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Overview
PROFIdrive – The standardized drive interface
for PROFINET and PROFIBUS
PROFIdrive defines the device behavior and the access proce-
dure to internal drive data for electrical drives on PROFINET and
PROFIBUS, from simple frequency converters up to high-
performance servo controllers.
It contains a detailed description of how the communication
functions "slave-to-slave communication", "constant bus cycle
time" and "isochronous operation" are used for drive applica-
tions. In addition, it clearly specifies all device characteristics
which influence interfaces connected to a controller over
PROFINET or PROFIBUS. This includes the sequence control,
encoder interface, standardization of values, definition of
standard messages, and access to drive parameters, etc.
The PROFIdrive profile supports both central as well as
distributed motion control concepts.
What are profiles?
Profiles specify specific properties and responses for devices
and systems in automation. In this manner, manufacturers and
users pursue the goal of defining common standards. Devices
and systems that comply with a multi-vendor profile can inter-
operate on a fieldbus and can be operated interchangeably to a
certain extent.
Do different profile types exist?
A distinction is made between application profiles (general or
specific) and system profiles:
•
Application profiles (also known as device profiles) mainly
refer to devices (e.g. drives) and contain an agreed selection
of bus communication modes, as well as specific device
applications.
•
System profiles describe system classes and include the
master functionality, program interfaces and integration
methods.
Is PROFIdrive future-proof?
PROFIdrive has been specified by PROFIBUS and PROFINET
International (PI) and has been laid down in IEC 61800-7 as a
future-proof standard.
The basic philosophy: Keep it simple
The PROFIdrive profile tries to keep the drive interface as simple
as possible and free from technology functions. This philosophy
ensures that reference models as well as the functionality and
performance of the PROFINET/PROFIBUS master have no or
very little influence on the drive interface.
One drive profile – Different application categories
The integration of drives into automation solutions depends
strongly upon the drive task. To cover the extensive range of
drive applications from the simple frequency converter up to
highly dynamic, synchronized multi-axis systems with a single
profile, PROFIdrive defines six application categories which
define most drive applications:
•
Category 1 – Standard drives (such as pumps, fans, stirring
units, etc.)
•
Category 2 – Standard drives with technology functions
•
Category 3 – Positioning drives
•
Category 4 – Motion control drives with central, higher-level
motion control intelligence and the patented "Dynamic Servo
Control" position control concept
•
Category 5 – Motion control drives with central, higher-level
motion control intelligence and position setpoint interface
•
Category 6 – Motion control drives with distributed motion
control intelligence integrated in the drives
© Siemens AG 2014