ET 200MP Distributed I/O System
System Manual, 01/2013, A5E03723484-01
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Product overview
2
2.1 Distributed I/O – overview
Distributed I/O systems – field of application
A plant configuration quite often features a process I/O configuration in a central automation
system.
When the inputs/outputs are far away from the automation system, wiring can become very
extensive and complex.
Distributed I/O systems are the perfect solution for such configurations.
● The master CPU is located centrally
● The I/O systems (inputs and outputs) work locally on a distributed basis.
What is PROFINET IO?
PROFINET IO is an open transmission system with real-time functionality defined in
accordance with the PROFINET standard. This standard defines a cross-manufacturer
communication, automation and engineering model.
Industrial-strength connections are available for wiring the PROFINET components.
● PROFINET discards the hierarchical PROFIBUS master/slave concept and deploys a
provider/consumer principle instead. The IO devices (e.g. the ET 200MP station) that will
be subscribed to by an IO controller (e.g by a SIMATIC S7-1500 CPU) are defined during
the configuration phase.
● The quantity structures are extended in accordance with the available quantities for
PROFINET IO. Parameter limits are not exceeded during configuration.
● The transmission rate is 100 Mbps.
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