Siemens SIMATIC ET 200eco PN Operating Instructions Manual page 269

PROFINET component
A PROFINET component encompasses the entire data of the hardware configuration, the
parameters of the modules, and the corresponding user program. The PROFINET
component is composed of:
● Technological function
The (optional) technological (software) function includes the interface to other PROFINET
components in the form of interconnectable inputs and outputs.
● Device
The device is the representation of the physical automation device or field device
including the IO devices, sensors, actuators, mechanics, and device firmware.
PROFINET Device
All PROFINET devices are equipped with at least one Industrial Ethernet port. A PROFINET
device can also have a PROFIBUS connection (master with proxy functionality).
PROFINET IO
Within the framework of PROFINET, PROFINET IO represents a communication concept for
the implementation of modular, distributed applications.
PROFINET IO allows you to create automation solutions, which are familiar to you from
PROFIBUS.
Implementation of PROFINET IO is effected on the one hand by means of the PROFINET
standard for automation devices and on the other by means of the STEP 7 engineering tool.
This means you have the same application view in STEP 7 regardless of whether you are
configuring PROFINET devices or PROFIBUS devices. Programming your user program is
essentially the same for PROFINET IO and PROFIBUS DP if you use the extended blocks
and system status lists for PROFINET IO.
PROFINET IO Controller
Device used to address connected IO Devices. That means: the IO Controller exchanges
input and output signals with assigned field devices. The IO Controller is usually the
controller running the automation program.
PROFINET IO Device
Distributed field device which is assigned to one of the IO Controllers (remote IO, valve
blocks, frequency converters, switches).
Reference potential
Reference potential for the evaluation / measuring of the voltages of participating circuits.
ET 200eco PN
Operating Instructions, 08/2016, A5E01250250-AJ
Glossary
269