Profinet - WAGO -I/O-SYSTEM 750 Technical Description, Installation And Configuration

134 • Fieldbus Communication

PROFINET

4.2 PROFINET
4.2.1 Description
PROFINET is the innovative and open standard for industrial Ethernet (IEC
61158).
PROFINET enables a universal use from production automation to process
automation. Devices can be integrated from the field levels to management
levels.
PROFINET applies IT standards, supports safety applications and covers the
complete range of drive engineering through its real-time feature.
PROFINET uses standard TCP/IP protocols for parameter setting, configuring
and for diagnostics. This provides the main foundation for connecting to
higher level systems (MES, ERP).
Real-Time (RT) is used for transmitting time-critical process data, which
enables high performance data transfer as known with PROFIBUS.
Isochronous Real Time (IRT) is used to implement especially demanding
tasks such as difficult motion control applications.
The investment protection of existing systems plays an important role for
PROFINET and therefore the integration into existing field bus systems such
as PROFIBUS, INTERBUS, etc. are supported right from the start.
PROFINET IO enables decentralized field devices to be connected to a central
control system (I/O controller). The familiar I/O view of PROFIBUS is
maintained in doing so. The characteristics of the field devices are described
by so-called GSDML files that are provided by the respective manufacturers.
PROFINET CBA (Component Based Automation) is used in distributed
automation systems. It allows stand-alone operating part units of machines to
be arranged to new individual units in a simple way that increases the
reusability of these part units.
Standard network topologies such as star, tree, line and ring can be
implemented using PROFINET. That way, the specific demands of Ethernet
networks can be met in industrial environments.
A high standard of quality is ensured through inspections conforming to
standards carried out within the PROFINET network and the certification of
PROFINET devices.
Further information
The PROFIBUS / PROFINET user organization provides documents that
deal with themes concerning PROFIBUS on their INTERNET page:
– Technical descriptions
WAGO-I/O-SYSTEM 750
PROFINET IO