What Is Profinet Io - Siemens SIMATIC ET 200M Operating Instructions Manual

1.3

What is PROFINET IO?

Definition
PROFINET IO is an open transmission system with real-time functionality defined in
accordance with the PROFINET standard. This standard defines a manufacturer-independent
communication, automation and engineering model.
Accessories for wiring the PROFINET components are available in industrial quality.
• PROFINET discards the hierarchical PROFIBUS master/slave concept and deploys a
provider/consumer principle instead. The modules of an I/O device that will be subscribed
to by an IO controller are defined within the engineering phase.
• The quantity framework is extended in accordance with the options offered on
PROFINET IO. Parameter limits are not exceeded during configuration.
• The transmission rate is 100 Mbps.
• The configuration interface for users is generally the same as that on PROFIBUS DP (the
system is configured in STEP 7 > HW CONFIG).
Topology of a PROFINET IO network
The figure below shows a typical PROFINET IO network topology. Existing PROFIBUS slaves
can be integrated using an IE/PB link.
Figure 1-2 Typical structure of a PROFINET IO network
ET 200M
Operating Instructions, 04/2022, EWA-4NEB7806006-09
Product overview
1.3 What is PROFINET IO?
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