Siemens SIMATIC ET 200AL, System Manual

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Description
2.2 Setting up PROFINET
PROFINET with STEP 7
Function Manual, 05/2021, A5E03444486-AL
31
Physical connections of industrial networks
PROFINET devices can be networked in industrial systems in two different physical ways:
•
Connected line
– By means of electrical pulses via copper cables
– By means of optical pulses via fiber-optic cables
• Wireless via wireless network using electromagnetic waves
PROFINET devices and cabling technology in SIMATIC are suited for industrial use, as they are
based on Fast Ethernet and Industrial Ethernet.
•
Fast Ethernet
You can use Fast Ethernet to transfer data at a speed of 100 Mbps. This transmission
technology uses the 100 Base-T standard for this.
• Industrial Ethernet
Structure of Ethernet in industrial environment.
The biggest difference from standard Ethernet is the mechanical current carrying capacity
and noise immunity of the individual components.
2.2.1 Active Network Components
Introduction
The following active network components are available for PROFINET:
•
Switch
• Router
Switched Ethernet
PROFINET IO is based on switched Ethernet with full-duplex operation and a bandwidth of
100 Mbps. In this way, the network can be used much more efficiently through the
simultaneous data transfer of several devices. The PROFINET IO frames are processed with
high priority.