Lenze I/O system 1000 System Manual - Manual (Page 614)

PROFINET communication
About PROFINET
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614 EDSIO1000 EN 7.0
PROFINET performance features
PROFINET according to IEC 61158 has the following performance features:
ƒ Full duplex transmission with 100Mbit/s via copper cables or optical fibre
ƒ Switched Ethernet
ƒ Auto negotiation (negotiating the transmission parameters)
ƒ Auto crossover (transmit and receive path are automatically crossed if required)
ƒ Wireless communication via Bluetooth or WLAN
ƒ UDP/IP is used as higher−level protocol. UDP stands for User Datagram Protocol and
comprises the unsecured connectionless broadcast communication in combination
with IP.
PROFINET devices
As with PROFIBUS−DP, the following devices are classified according to their tasks with
PROFINET IO as well:
ƒ IO−Controller
ƒ IO−Device
ƒ IO−Supervisor
The IO−Controller is equivalent to the master under PROFIBUS. Here, it is the PLC with
PROFINET connection in which the automation program is executed.
An IO−Device is a decentralised I/O field device which is connected via PROFINET. The
IO−Device is equivalent to the slave under PROFIBUS.
An IO−Supervisor is an engineering station as for example a programming device, a PC or
a control panel for commissioning and diagnostics.
Industrial Ethernet
Due to the openness of PROFINET standard, you can use standard Ethernet components.
For industrial environments and due to the high baud rate of 100 Mbps, the PROFINET
system should consist of industrial Ethernet components. All devices connected via
switches are located in one network and can communicate directly with each other. A
network is physically limited by a router. For communication via network limits, you must
program your routers in such a way that they permit this communication.