Chapter 6 Redundant Media - GE PACSystems RX3i User Manual

Chapter 6 Redundant Media

The PACSystems PROFINET Controller supports PROFINET Media Redundancy Protocol (MRP). The PROFINET
Controller can be used as either a Media Redundancy Manager or Media Redundancy Client on a redundant
media ring.
Media Redundancy enables the network to recover from a failure at any single network link or network node.
Because it operates transparently to applications using the network, no changes to the application are needed
to use media redundancy.
This chapter describes:
•
PROFINET Media Redundancy Protocol
•
MRP Performance
•
Ring Topology with One Controller
•
Ring Topology with Multiple Controllers
•
Setting Up Media Redundancy Protocol for a PROFINET IO-Controller
•
Sequence for Enabling Media Redundancy
•
Sequence for Replacing a Media Redundancy Manager
•
Procedure for Disabling Media Redundancy
The following table shows which PROFINET Scanners/Devices support MRP.
PROFINET Scanner/Device
RX3i CEP Carrier
RX3i Genius* Communications Gateway
PAC8000 PROFINET Scanner (PNS) Module
RSTi PROFINET Network Adaptor
RSTi-EP PROFINET Network Adaptor
RX3i PROFINET Scanner (PNS) Module
VersaMax PROFINET Scanner (PNS) Module
VersaMax IP PROFINET Scanner Module
VersaPoint PROFINET Scanner
16 Bumpless operation is only guaranteed at IO Update rates at or above 128 ms
GFK-2571N
Acronym
RX3i CEP
RX3i GCG
PAC8000 PNS
RSTi PNS
RSTi-EP PNS
RX3i PNS
Versamax PNS
VersaMax/IP PNS
VersaPoint PNS
May 2018
PROFINET Media Redundancy
Protocol (MRP)
√
√
√
√
√
√
√ 16
√
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