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PROFINET Media Redundancy Guideline



This guideline describes the media redundancy solutions and basic mechanisms for PROFINET network setups in the field of automation applications.

PROFINET provides two media redundancy solutions, namely the “Media Redundancy Protocol” (MRP) as non-seamless protocol, and the “Media Redundancy for Planned Duplication” (MRPD), as seamless media redundancy concept.

MRP is the basic redundancy protocol for PROFINET and must be applied when PROFINET network ring structures are in operation. MRP is sufficient for standard real-time PROFINET communication. MRPD is needed in addition when transferring fast isochronous real-time (IRT) PROFINET control data.

System redundancy is not in the scope of this guideline and is only mentioned when it is necessary to understand the concept of PROFINET Media Redundancy and its distinction to System Redundancy.

The vendors who provide products with Media Redundancy functionality are authorized to make electronic copies of the attached (ASCII readable) MIB files as well as to publish them on their websites.

Version: 1.03
Order No.: 7.212
Language: English


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# Date Filename Type Size
19/04/2018 PN-Media-Red-7212-V103-Apr18.pdf pdf 1,003 KB
14/09/2018 IEC-62439-2-MGMT-MIB-20140509.mib mib 43 KB
14/09/2018 IEC-62439-2-MON-MIB-20140509.mib mib 41 KB

PROFIBUS is a standardized, open, digital communications system for all areas of application in manufacturing and process automation.

PROFINET is the innovative open standard for Industrial Ethernet. It satisfies all requirements of automation technology..

IO-LINK is an independent sensor / actuator interface solution for use with PROFIBUS and PROFINET.