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Glossary
PROFINET
Within the context of Totally Integrated Automation (TIA), PROFINET is the systematic
continuation of the following systems:
• PROFIBUS DP, the established fieldbus
• Industrial Ethernet, the communication bus for the cell level
Experiences from both systems have been and are being integrated in PROFINET.
PROFINET is an Ethernet-based automation standard of PROFIBUS International (previously
PROFIBUS User Organization e.V.), and defines a multi-vendor communication, automation,
and engineering model. PROFINET has been part of IEC 61158 since 2003.
See PROFIBUS International
PROFINET components
A PROFINET component includes all data of the hardware configuration, the parameters of
the modules, and the associated user program. The PROFINET component comprises the
following elements:
• Technological function
The (optional) technological (software) function includes the interface to other PROFINET
components as interconnectable inputs and outputs.
• Device
The device represents the physical automation device or field device, including the IO,
sensors and actuators, mechanical system, and device firmware.
PROFINET device
A PROFINET device always has at least one Industrial Ethernet port. Additionally, a PROFINET
device can have a PROFIBUS connection: as master with proxy functions In exceptions, a
PROFINET device can also have a several PROFIBUS connections (for example CP 5614).
PROFINET IO Controller
Device by means of which connected IO Devices are addressed. In other words: The IO
Controller exchanges input and output signals with the assigned field devices. The IO
Controller is often the controller in which the automation program is executed.
PROFINET IO
Within the context of PROFINET, PROFINET IO is a communication concept for implementing
modular, distributed applications.
PROFINET IO allows you to create automation solutions familiar from PROFIBUS.
Implementation of PROFINET IO is carried out on the one hand via the PROFINET standard for
automation devices and on the other by using the engineering tool STEP 7.
This means that you have the same application layer in STEP 7 – regardless of whether you
configure PROFINET devices or PROFIBUS devices The programming of your user program is
identical for PROFINET IO and PROFIBUS DP when you use the blocks and system status lists
expanded for PROFINET IO.
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Hardware Installation and Operating Manual, 07/2020, A5E50018670-AA
PN/MF Coupler
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