Glossary
Glossary-7
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
PROFINET components
A PROFINET component includes the complete data of the hardware
configuration, the parameters of the modules, and the associated user program.
The PROFINET component consists of the following:
• Technological function
The (optional) technological (software) function includes the interface to other
PROFINET components in the form of switchable inputs and outputs.
• Device
The device is the manifestation of the physical automation device or field device,
including the distributed devices, sensors and actuators, mechanics, and the
device firmware.
PROFINET device
A PROFINET device always has at least one Industrial Ethernet terminal. A
PROFINET device can also have a PROFIBUS terminal and can act as a master
with proxy functions. In exceptional cases a PROFINET device can also have
multiple PROFIBUS terminals (such as CP 5614).
PROFINET I/O
PROFINET I/O as a subset of PROFINET is a communications concept for the
implementation of modular , distributed applications.
PROFINET I/O can be used to establish automation solutions similar to those
known and made familiar under PROFIBUS.
PROFINET I/O is implemented by the PROFINET standard for automatic devices
and also by the STEP 7 engineering tool.
This means that in STEP 7 you have the same application view -- regardless of
whether you are configuring PROFINET devices or PROFIBUS devices.
You program your user program in the same way for both PROFINET I/O and
PROFIBUS DP if you use the blocks and system status lists enhanced for
PROFINET I/O.
PROFINET I/O Controller
Device that is addressed via the connected I/O devices. This means that the I/O
controller exchanges input and output signals with associated field devices. With
the I/O controller this often means the controller in which the automation program
is running.
PROFINET I/O device
Distributed field device to which the I/O controller is assigned (for example, remote
I/O, valve blocks, frequency converter, switches)
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