Omron PROFINET NX-PNC202, User Manual

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1 PROFINET IO Technology
NX-series PROFINET Coupler Unit User’s Manual (W623)
1-2 PROFINET Distributed IO
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1-2 PROFINET Distributed IO
The focus of PROFINET IO is to have cyclic data exchange between a controller and multiple often
simple communication devices. The aim is to have high performance and ease to use.
The PROFINET IO distinguishes the following different device roles. Please note a single device can
have multiple roles.
Number PROFINET Comment
1 IO System
2 IO Controller Device that addresses the connected IO units by exchanging input and output
signals with them.
This controller normally runs the automation program.
3 IO Supervisor Device (e.g. a PC) for commissioning and diagnostics.
4 Ethernet Network infrastructure.
5 User Interface Device for operating and monitoring the functions of the system.
6 IO device Device for receiving sensor signals and controlling actuators like valves,
switches and frequency converters.
Switch
3 5
4
6
6
6
1
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