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Controllers
4.5 Relay and fieldbus interfaces
Automatic addressing
The Discovery and basic Configuration Protocol (DCP) is compulsory for the automatic
assignment of IP addresses.
Media redundancy
In the case of PROFINET, the Media Redundancy Protocol (MRP) is used for the media
redundancy of ring topologies. The ATD430W IO device assumes the role of an MRP client.
The MRP manager function is not supported.
Isochronous data exchange
The ATD430W IO device also supports the IRT protocol and thus class C functionality (CC-
C). This supports isochronous data exchange up to 250 µs. The IO device forwards all data
isochronously. The application program on the ATD430W does not operate isochronously.
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ATD4xxW Door Controller for Industrial Applications
System Manual, 01/2017, A5E38080677-AB
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