Brochure

Distributed automation 9
Distributed fieldbus systems are elementary components
of the automation landscape Communication is per-
formed at the field level with PROFINET and PROFIBUS –
these systems ensure rapid data transfer between the
components and consistent decentralization of the auto-
mation solution.
In addition to the fieldbus systems, the point-to-point con-
nection I/O-Link is also available for intelligent connection
of sensors and actuators.
The use of open communication standards offers flexible con-
nection possibilities – whichever system you decide on. You
also have flexibility with the ET200 systems – most systems
communicate both over PROFINET and PROFIBUS.
Distributed fieldbus systems
Management level
Office environment
Cell level
Field level
PROFINET
PROFIBUS
IO Link
AS Interface
PROFINET PROFIBUS
With 4.3 million nodes installed, PROFINET is the world's
leading Ethernet standard for automation. The forecast an-
nual growth of more than 30% emphasizes the strong posi-
tion.
Company-wide automation with PROFINET:
PROFINET – the open Industrial Ethernet Standard for auto-
mation – ensures integrated communication.
Existing fieldbus systems can be easily integrated. This pro-
tects your investments for the future. With PROFINET, the
established IT services (e.g. web services, remote services,
TCP/IP communication) can be used easily. PROFINET offers
innovative diagnostics options, new functions such as
Shared Service, I-Device, MRP (Media Redundancy Proto-
col), and high performance. This enables new, user-friendly
applications, such as wireless, high-precision automation
with Industrial Wireless LAN – now also in process automa-
tion.
PROFIBUS is the No. 1 fieldbus – the proof lies in the 40.1
million nodes installed worldwide.
PROFIBUS is not only implemented in the manufacturing ar-
ea, but it can also be used throughout the process industry
– even in hazardous areas. Standard interfaces support
quick and easy connection of the I/O to your systems and
therefore integrated communication from the cell level
down to the field level.
AS-Interface
AS-Interface is an open, standardized bus system that en-
ables simple integration of actuators and sensors at the low-
est field level.
IO-Link
IO-Link is the smart concept for the standardized linking of
sensors and switching devices to the control level by means
of an economical point-to-point connection. This new com-
munications standard below the fieldbus level allows cen-
tral fault diagnosis and location as far as the sensor/actuator
level and simplifies commissioning and maintenance by al-
lowing the parameter data to be modified dynamically, di-
rect from the application.
SIMATIC_ET200_ENGLISCH.book Seite 9 Montag, 26. November 2012 10:02 10
© Siemens AG 2012